L82 dyno. Advanced Fuel Dynamics proudly offers .
L82 dyno 0 we had a dyno run made at Lingenfelter and the print out was 183 or 187. It will fit a 1978 to 1979 L82 Corvette and any 1980 to 1981 Corvette. 1975 Chevrolet Corvette Convertible, only 19,000 miles, excellent in every way, stunning Dark Red paint, White soft top, immaculate Red leather interior, matching number L82 350 cu in V8 has been professionally rebuilt to Dyno Tested 357 HP, factory 4-speed, true dual exhaust, AM/FM radio, the last year for the convertible - very rare - C5 General - 2001 Z06 Dyno Results. on the desktop dyno hello everybody. Although the L82 was the higher horsepower small-block that year, it’s still a smog engine. Looking for 350-400 hp. 0 Whipple supercharged dyno tuned. Finished in Black over a Black leather interior, this C3 is now offered by the selling broker with the original window sticker, service manuals, sales brochure, original owner's manual, maintenance schedule, dyno sheets, and a clear title. Instant throttle response and great low end torque. some adittional info. On my C4 the option numbers are in the glove box. 2L F150/Raptor? F150 Toggle child menu. Horsepower: sae net 180 at 4,000 rpm. Numbers matching is available and we will go pick it up. 8. Rather than use the "seat of your pants" dyno, I put it on a chassis dyno this morning to get a benchmark. Not really fair to the decent L82 cam, they dyno'd it with a doggy carb - discovered that when thy ran the Thumpr with the doggy carb. I took the graphs from GM powertrain. Not yet a true dual exhaust, but the "cat" is in the attic above the garage. 9 posts · Joined 2022 Add to quote Carl_L82. Should i just get the LIM and EGR gasket's for a 3100 and the the UIM and TB gasket's for a 3400? Thanks. Dyno graphs would be great. Electric fuel pump. 1L v6 (aluminum headed) engine! in part II we will look at improving t C3 Tech/Performance - Performance of modified L82 1976 Corvette - I have a L82 1976 corvette, with a new intake manifold (edelbrock 2101) and a true dual exhaust. 0:1 L82 produced 313 flywheel (gross) horsepower at 5,500 C3 Tech/Performance - L48 vs. hu matrica: ingyenes. 5 duals, Underdrive pulley's, Edelbrock Performer intake, Stock GT numbers are all over the place. L82 may have aluminum covers and possible chrome lid. 3L L83 and 6. Fuel Injectors for GM LS3 LS7 LSA L76 L82 L99. Trans) = RWHP The . Would appreciate suggestions for the easiest and least expensive methods. I would really like to build my motor to be a torque monster between 2000-4500 rpm. Early L48s had higher CR - 10:1. The engine produced adequate torque relative to the horsepower rating, but it wasn't C3 Tech/Performance - Dyno Results: Disappointed, but must stop - For those who have been following my problems with timing/carb in the other thread, here is what happened at the dyno today: L82 cam will work, too. Peak torque or HP numbers only tell some of the story. He is looking for strong low-midrange The C3 test engine is fairly representative of C2s and C3s: a 1973 350ci L82. C5 General - 03Z Dyno - intake, headers, exhaust - 2003 Z06, Blackwing CAI w/ Powerduct, Melrose headers, hi-flow cats, x-pipe, & Borla stingers. Raptors Toggle child menu. 3 but the axes go to 700 because of how they scale the HP. Alexander Stoklosa Writer Nov 12, 2019. 3L L83 engine! The L83 "Low Lift" camshafts use new proprietary TSP lobe profiles that are L82 Dyno chart: Torque in red, HP in Blue. In the case of the smaller 327, the L79 was essentially a solid-lifter L76 (365-hp 327 They started with a scrub 350/290hp crate engine, a smog L82 long block basically circa mid-1970s, the dark years. I want as much power and torque as I possibly can get out of this I like the bang through the gears a few times, and then put around in 4th. only the 70 LT-1 had 370 horsepower. . These engines vary in displacement between 2. L82 - What is the physical difference between an 1978 L48 and same year L82?? can you make a L48 perform just like an L82?? DYNO MIGHT. after 72 they retarded the cam 4 degrees hurting power more. TIA, Perry C3 Tech/Performance - Tuning timing peak 79 l82 stock max power - I got the Lars timing papers 1979L 82 manual I Revit up to about 4500 occasionally maybe 5000. FWIW, C/D tested a 1975 Vette with an L82. This Month We Test Hydraulic Horsepower: It's L79 Vs. Adam Last edited by NewbVetteGuy; 07-28-2016 at 06:07 PM . 9-13. How It L48 in 76 was 180 hp and the L82 was 210 I believe. I've got it on the engine stand but have not yet torn into it I have seen the posts about Rebuilding vs. Edelbrock 600cfm carb. The L 82 is basically a leftover LT 1 design,has the steel crank,four bolt mains,does not have the compression ratio and valve train/cam as the LT 1 did,solids vs hydraulic lifters and has the larger 202 valves,stronger hydraulic cam then L 48 and an aluminum intake. Likes: 2,775. The base L48 engine, which had been rated at 195 horsepower in 1979, lost five bhp as a result of emissions The L82’s capacity increased once more to 220 hp two years later. with a little over 200 net HP. L82 has forged pistons, L48 cast. Forum Member, Karol's L-82 with 2. The car will have the stock 2. With their new RPM Air-Gap Intake Manifold for the Oldsmobile 455, you can be sure to reach peak horsepower ratings across the majority of the RPM range. Last edited by Ron R; Jul 15, 2007 at 01:44 AM This 1975 Chevrolet Corvette convertible is powered by a rebuilt, numbers-matching L82 350cid V8 backed by a close-ratio four-speed manual transmission, this Corvette comesfrom the selling dealer with a window sticker, documentation, service records, a dyno printout, and a clear title. in the second set of pictures i removed the HP curves for ford but since the HP curves for GM is C3 General - Difference between L-48 and L-82 in 1975 and 1976 - I had thought that the base engines for 1975 and 1976 was the L-48, and the slightly higher (not by much lol) was the L-82. Increasing the Hp to 300 is that enough hp for this car. The 2701’s 4. 241 posts · Joined 2013 Add to quote; Only show this user #11 In particular, a dyno showing improvements with a Hemifever tune and one with VaraRam's Mechanically, the 1980 Corvette suffered some because of increasingly stringent emissions regulations. 8 and 3. Obviously when "off'. Save Share Reply Quote Like. It’s been said that perception and reality often take divergent paths, and we’ve been witness to the truth of that statement on occasion. Crane. I have seen three types, L-48, L-82 and ones that just say 350. except the mufflers and custom paint its all stock. I want to gain more experience before I go after cylinder heads. right now it is bone stock auto, but has every option available that year. GM Part Numbers: 14016116, 472711, 00472711. L82 main differences - What are the main differences between L48 and L82 in 1980? Are they 2 or 4-bolt mains? Is an L48 worth rebuilding to beef up the horsepower to around 350? C3 Tech/Performance - L-82/L-48 Maximum Power? - Hey I'm pretty new to this. I got the UIM and LIM off a 98 venture, But i was wanting to know if the gasket set for the venture would work on a L82. In loving memory of lost CorvetteForum Brothers and Sisters C3 Tech/Performance - 1978 L82 Stock exhaust vs Duel exhaust - Hi, I have a stock 32,000 mile 1978 L82 Pace Car with the original exhaust that is at the end of its life. Thinking of carb, everything is dyno matched to your goals. 5 duals and Shorty Headers) and it did 233 RWHP on the dyno. For any of you have been on CF for a while, who's got the best dyno results you've seen with a stock bottom end (I'm assuming this list is exclusive to L82s)? Best Torque or Best In stock trim on our dyno, the 9. 3rd gen brown 1976 Chevrolet Corvette Stingray L82 For Sale. C3 Tech/Performance - Carburetor Quadrajet Stage 2 L82 stock engine - Hi everybody, I have a Chevrolet Corvette C3 1979 L82 350 cu motor stock engine. NOTE: I'm leaving the cast manifold in place. 2021 GMC Sierra 3. 0L? Got a 2018-2020 F150 '76 stingray L82 (now L31) with Vortec heads, Functional front-facing hood scoop, K&N air filter/filter top and air box. Mods are a Vararam air intake and I replaced the front pipe to get rid of the pup cats. Also does anyone have any suggestions on what to Base (L48) engines get the L82 low-restriction intake and exhaust systems, a change that raises their output to 195 horsepower. If so, than I'm running better, aren't I? What has everyone else's Stock L-82 dyno'd at? Thanks, Taylor L82 vs. 4. The dyno test of a good flowing 350 using identical lift and duration changing only LSA (101, 106, 114) indicate the smaller LSA provides more torque at low RPM. L82 is on the hood, but motor is a new crate GM 300 hp crate motor. New Member. (My 79 L82 had 14. I happened to be driving to work one day and I see this corvette sitting in an old parking lot. My GT with headers, CAI, and SLP axlebacks only put down 318rwhp and 315rwtq on a mustang dyno. Hooker side mount headers. Yet dyno-tests show the formula is an accurate reflection of an engine' s airflow needs. 0 TQ at the flywheel on on Texas Speed's in-house SuperFlow 902 engine dyno using an otherwise stock 5. C5 General - Please post your stock/bolt on dyno #'s - Looking for a good comparison between bone stock '02-'04 Z06's that have been tuned VS bolt on cars with headers, intake, etc If you do have aftermarket headers, please specify primary size as well. The Performer intake I ran for many years was marginaly better than the old iron L-48 piece I took off. I'm thinking about installing CompCam's Xtreme Engergy cam with a 262 grind which many folk have Dyno is a feature-rich and modular discord bot for your Discord server. 3L V8 L82 engine, including detailed info, specs, vehicle applications, horsepower, torque, materials, emissions and more. 2 11. Base (L82 Only) 1978. Please post who tuned and what type of dyno. My camshaft went flat when it had 20000 miles so I put a 350hp327 cam in it. 89 = Net HP X . The car has a tired 350 and will never be a show car or daily driver, but I would like more power for cruise nights. Running both the stock 5. 6, when Chevrolet has informed us that the correct factor for our Z51 should have been 15. 4 litres (2,837 and 3,350 cc) and Everytime Ido that test on the dyno, the engine will loose power up till about 500 below the HP peak, then it will gain very littleat the true Hp peak. 7 Nm ( 801 C3 Tech/Performance - L82 Engine Rebuild Advice - I pulled the L82 out because of Low Oil Pressure and because it has over 100K on it. Weight: 3. 030" over, slight grind to existing forged crank, new forged pistons and cam. of course highway I'm in the process of buying a 1980 L82/230HP and would like to boost the HP to around 300+HP. It sounded very sweet. C3 Tech/Performance - performance questions about 1980 l82 - im looking at a 1980 l82 and will probably seal the deal later this week. which one is right for the I also assumed my low cylinder pressure was a result of too much overlap. 2L? Got A 2017-2020 Raptor 3. Just my opinion but the AFR heads, your stock L82 cam and distributor recurve getting 36 degrees all in timing around 2,800 rpm, Edelbrock aluminium intake and their matching carb would shock you. L82 and L48 have slightly different heads w/ the L82 having larger valves. If the C8 Corvette does make more power than advertised, it's in good company. Hooker side mount L82 and L48 have slightly different timing curves. If you’re looking to beef up your big-block Oldsmobile, Edelbrock is your go-to source. | 1968, 1969, 1970, 1971, 1972, 1975, 1976, C3, casting, Corvette, engine, exhaust, left, manifold, number, numbers, right % As already mentioned, the 1975 Vette with an L82 had 205 hp. I'm looking at a doing anything else to my 81 (the L-48) but if anyone else has done the same thing on an L-48 I'd be curious to see the dyno results. Mike. 5 AFR,, changued to 12. 7L V8 mated to a Muncie four-speed manual transmission. Compression on this 1973 L82 4 Speed Coupe - Very original, well documented driver/survivor. Sounds like your a happy guy. So yes they are both pretty close when it comes to parts and horse power I must the run-on sentence king hello everybody. 5 inch duals with stock exhaust manifolds did 246 RWHP on the same dyno as my pull. The "big" L82 motor is doled a new electric cooling fan if you buy C5 General - Please post your stock/bolt on dyno #'s - Looking for a good comparison between bone stock '02-'04 Z06's that have been tuned VS bolt on cars with headers, intake, etc If you do have aftermarket headers, please specify primary size as well. Hit 303 hp 392 lb-ft torque and ran a 13. Here is my dyno sheet: i mean truck was stock not FI, fuel in some spots where at 11. 700” forged connecting rods, often referred to as GM’s “pink” rods by many in the automotive community, due to a specialty pink marking that they received. But add a water pump, complete accessory drive, and a large mechanical engine-drive fan and the difference in power could easily be 15 to 20 hp on a high winding small-block. This 20,778-mile 1979 Chevrolet Corvette is powered by a L82 5. 1975 was a low point for horsepower from GM and Ford in general, much of it due to the restrictive catalytic converters that were introduced that year. I?m going to have the engine completely over hauled. They rate crate engines in Gross HP ( as in engine dyno ) because how do they know what is going to be hooked up to them The L82 measured the same way would be about the same or slightly less if you put it on an engine dyno. I'd like to wake it up a bit though and C3 General - L82 equivalent cam? - I'm contemplating changing cams in my current motor. Attached to this crankshaft, was a set of 5. L46 Vs. l82) on Instagram: "Y•o 18 @muslimofficiall , @themohammedsaeed ️啕 وأجعل لنا نصيب فيما نحب يا الله @_xa_m10 اخويا ♥️ عرباوي " The GT Platinum pre-loaded with dyno-proven tunes that add more power, torque and increase fuel economy of your truck. C3 Tech/Performance - l82 - Quick question guys a guy I kno just gave me a l82 out of his 1980 vette I was reading that stock they push about 230 hp it's me an my dads father son project an it will be going in a step side chevy or a c10 about how much will take for me to get the l82 to push about 350 to 450 horse C3 Tech/Performance - Performance of modified L82 1976 Corvette - I have a L82 1976 corvette, with a new intake manifold (edelbrock 2101) and a true dual exhaust. 0. C3 Tech/Performance - L82 vs. Dual Electric cooling fans. With web configuration, moderation, anti-spam, auto roles, custom commands, and much more! Then the timing chain stretches out and the rubber on the teeth starts to fall off and the timing gets REALLY retarded and the torque gets REALLY terrible. Countless hours of in-house dyno development and Spintron research has allowed them to unlock strong power gains within the restraints of the L84 engine's limited piston to valve clearance, Note: This listing is for the L84/L82 version of the Truck Norris only (2019-Newer with "D" or "F" for 8th digit of VIN). besides i put a real 2 stainles steel lines, no cat, 2. Got a 2021-2023 F150 V8 5. 400 Ft (nettó ár) Bruttó 10. Top Lines: L46 350 grossHP 350" 11:1, Middle: L79 350 grossHP 327" 11:1, Bottom L82 "185 - 255 netHP" 350" 9:1:. Cr500kev Discussion starter. The 2701 makes an extra five horsepower and nine foot-pounds of torque over the Edelbrock 2101, according to the company’s own dyno testing. C3 Tech/Performance - L48 vs. Now I know nothing about corvettes and the most I ever got to a sports car is a Fiero(talk about high maintenance). My corvette is a L82. Posts: 36,707. A rule of thumb equation that works fairly well with a stock/original set up is Gross HP X . 0L LQ4 on the dyno! See All 20 Photos. C3 Tech/Performance - 1978 L82 engine replacement / rebuild stockish Mine too had oil leaks, a weak #6 compression cylinder (broken piston rings) but ran fairly well doing 233 RWHP on a dyno with a stock motor with 882 heads and L-82 intake, shorty headers, dual exhaust, no emissions, C3 Tech/Performance - 1978 corvette rebuild - I m getting ready to restore my 1978 corvette. C3 Tech/Performance - Clutch fan education, testing, temperature, 79 L82 - In the never ending battle for heat mitigation and fan cooling hvac efficiency?. That’s one reason that electric fans have become so popular. . Diagnosztikai eszközzel vagy gyári szintű Honda diagnosztikával DPF C3 Tech/Performance - Dyno test predictions - I'm getting my 74 l82 dyno this week for the fun of it first run will be with the quadrajet that is on the car not sure if its properly tuned or not 2nd run will be with the original stock carb tuned by Lars car has long tube headers and ehaust system Any predictions on Zz4 engine crate chevrolet corvette l82 1980 tops 1980 chevrolet corvette Exclusive first look! the 405hp zz6 chevy crate engine. the first LT1 had 11:1 compression , good heads ,a solid lifter cam ,good to 6800rpm, with 370 gross HP. With web configuration, moderation, anti-spam, auto roles, custom commands, and much more! C3 Tech/Performance - 1980 L82 best route to a reliable 450hp 2 grand to build and thats with the comp 270retro roller and the super budget heads I ported and assembled myself. - Had my 2001 Z on the Dyno today (Dynocom Industries Inc). which one is right for the The L82 has higher horsepower, a flatter torque curve and a higher redline, making it an overall better performer throughout the rev range. Engine made a shade under 360HP Dyno Results Toggle child menu. block ,crank ,rods and pistons are the same in the 71-72 Lt-1 and the L-82 all years. My 355 ci appears to be nearly stock, 350 likes, 2 comments - ultimateperformancesa on May 20, 2023: "ماشاءالله تبارك الله. I don't think I'll have time to finish and install my new motor over the coming months but i'm sick of the ridiculous cam that was put in the current motor. Register; Forums. Got A 2022+ Raptor R 5. The engine produced adequate torque relative to the horsepower Dyno Testing chevy's Famous Hydraulic Cammed Small Blocks - Legendary Small-Block Shootout-The Sequel. Equipped with the Comp cam, the L92 produced 550 hp at 6,200 rpm and 512 lb-ft of torque at 5,100 rpm. Jeff Smith Writer Wes Allison Photographer May 01, 2023 Dyno is a feature-rich and modular discord bot for your Discord server. Diagnosztika és egyéb szolgáltatások. Just need to check if it will fit before closing the hood. _____ Brian - NCM Lifetime Member 73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. i also have had a 70 LT-1 roadster A L-82 pace car (new) The Q-Jet was actually less of a hindrance than you might suspect as the 750 cfm rating was more than adequate for the needs of the 250hp L82. Intros; In Memoriam. To validate our efforts, we strapped our L88 tribute engine to a SuperFlow 901 dyno, and with only incremental changes to the timing and carb jetting, generated some pretty impressive figures from an old-school C3 Tech/Performance - Which intake, carb and heads for my 1979 L82 - I'd like advise on combinations of intake manifolds, heads and carbs that have been actually installed on Vette's that fit properly (ie clear) the hood. Bid. I eventually threw in a cam and other mods but my numbers were always lower than other guys on the board. Reactions: Super_old_man_moto. I might be C3 General - L82 vs L48 1979-1981 - This has got to be some common info out there but I can't find it :( I just found the info below on google, so figured I'd ask here :) My question applies to 1979 - 1981, L48 vs L82 Hp / torque difference? All rebuilt and ready to be installed in the 1978 Chevrolet Corvette L82 The Chevrolet small-block engine is a series of gasoline-powered V8 automobile engines, produced by the Chevrolet division of General Motors in two overlapping generations between 1954 and 2003, using the same basic OVERVIEW. Engine made a shade under 360HP Edit: if you do go with either of those two then it's be great to see a dyno readout before and after. 8/3. Some day I would like to get another one. 4k miles on it and all the rubber still on the upper cam sprocket and still couldn't manage a burn-out; a DOG off the line. 700R4 4 speed over-drive transmission, rebuilt with . 0:1 L82 produced 313 flywheel (gross) horsepower at 5,500 rpm and 355 lb-ft of torque at 3,800 rpm. C3 Tech/Performance - Understanding Speed and RPM in corvette L82 1979 3 speed automatic - Hi, i would like to ask you your opinion about my corvette C3, 1979, engine L82 with 3 speed automatic trasmission. Put true duals on the L48 and you have pretty close to the same thing as an L82. We finally ended up having one ground by Crower to the original specs. The L-82 from 73 to 80 is basically a LT-1 engine with the lower compression pistons like the 1971 LT-1 with 9:1 pistons rated at 330 GROSS HP, not net like all engines were rated in 1972, NOT RHWP on a dyno. C3 Tech/Performance - Best cylinder heads L82 original engine - Hi everybody, I wonder which is the best cylinder heads to a L82 original engine for Corvette 1979 owners ? I just "upgraded" from the flat tappet to a retro Edelbrock 600cfm carb. The cam swap was simple enough on the engine dyno, and we were up and running in no time. If you run the higher ratio on the exhaust side too, it will usually loose every where in the RPM range= The way it works the best is to run the higher ratio on the intake side only. In stock trim on our dyno, the 9. Car runs amazing just looking for the pro's&con's of a nice set of headers vs leave it alone? Hoping for better g/mileage and of course hp,whattaya guys think The L82 V8 featured a forged engine block of a four-bolt main configuration, which housed a forged steel crankshaft. Is there The L82 is, as stated earlier, a very close replacement of the L46 and in fact used the exact same cam (which also works well in an L48). Needs new motor mounts Made 238whp 297 wtq on best run. Absolutely Beautiful Brown 1976 L82 Corvette Stingray T-Top Coupe in good condition, mileage 78,035, Automatic Transmission Always kept in the garage and covered for last 35 years New brake system, intake, carburetor, radio, center console, insulation/dyno mat, shocks, and tires. It will have great drivability and a mild lope at idle, while gaining 58hp over the factory camshaft in TSP's dyno testing. So yes they are both pretty close when it comes to parts and horse power I must the run-on sentence king 1976 Corvette L82. Team Owner . The Q-Jet was actually less of a hindrance than you might suspect as the 750 cfm rating was more than adequate for the needs of the 250hp L82. Vince, the recent rebuild of the original L82 in my '73 ran just With 370 gross horsepower at 6,000 RPM, it featured many hi-performance and heavy duty components, including solid lifters, heavy duty starter, forged TRW aluminum L82 Dyno chart: Torque in red, HP in Blue. I was going to rebuild the engine to 300hp. The L 37820-RAD-L82: Honda: Accord: VII dyno-tuning. The car is stock right now and I am not interested in heads and cam etc as I'll stick a stoker crate engine in it eventually if I want bigger power. 0L LQ4 motors on the engine dyno with headers, optimized tunes, Although I’m not very knowledgeable when the topic is GM’s L82, 5. I've decided to put a Dual System on it, 2", and see what difference it makes. it's a cast crank, x rods and TRW 464664 L82 pistons (all L83s came w/ the forged L82 piston) and still running strong 1086. 5 inches with performance Ok so I have my old tired L82 base 250 sae horsepower. C3 Tech/Performance - 1977 L48 dyno - so got wondering how much the sidepipes/headers with the edelbrock q-jet performer helped the L48, it made 197hp and 255tq, it was done breathing around 4200rpm, not too bad for an engine that was built in 1977. 2016 Bend Regional NCRS Top Flight. Our shop can be found at 8650 C3 General - 1979 Corvette VIN check - Can anyone help me decipher a C3 Vin? It is 1Z8789S449253. Yes sir! Reply. Dyno tuned carb If your carb truly was set up right on the dyno, you are asking for a lot from something out of a box set to work on several hundred engines. 500 boost valve and corvette servo. what i did was take the two graphs from each manufacture and lined up both rpm's and their torque scale on the left side. 270″ height can create space problems under the hood in certain applications, and notably in Corvettes. So EnglandGreen fine tuned it for me. My dyno sheet above was for my stock internals L-82 with a Holley 650 CFM vacuum secondary Qjet replacement carb with a vacuum spring kit on the secondaries (lightest We're assembling a factory-specification 1969 L78 396 and dyno testing the finished engine to see how much horsepower it really makes. 236. Companies such as Holley can do the same for you. Reply. 1980 Chevrolet Corvette - L82 - T TOPS - ZZ4 CRATE ENGINE - Stock Pennsylvania gm performance parts zz4 350 for sale price lowered Zz4 crate dyno corvetteforum They rate crate engines in Gross HP ( as in engine dyno ) because how do they know what is going to be hooked up to them The L82 measured the same way would be about the same or slightly less if you put it on an engine dyno. We dyno'd it with all his components. the L82 had poor heads , a much milder hydraulic cam, and a Quadrajet good for about 5200rpm . The L82 has higher horsepower, a flatter torque curve and a higher redline, making it an overall better performer throughout the rev range. Performer intake, 3. 5 inches with performance C3 Tech/Performance - L82 Retrofit Roller Cam Conversion? - So I started trying to learn about what's required to put a hydraulic roller cam in an L82 and it started spiraling out of control VERY quickly cam in my dyno software with my combo and those huge gains people here keep mentioning just werent there. NOTE: The square end of this C3 Air Cleaner Intake Flex Duct measures 3 1/2 inches by 3 1/2 C3 Tech/Performance - L82 vs. We found out after a few baseline pulls that the car had bits and pieces of a tune. The Stage 1 works well with the stock torque converter and is ideal for making an upgrade while performing a Delivery time is estimated using our proprietary method which is based on the buyer's proximity to the item location, the shipping service selected, the seller's shipping history, and other factors. the actual curve only goes up to 335 for the old 5. i would need some advice to upgrade the cam of my 78 l82. L82s have C3 Tech/Performance - best carb for an L82, out of the box new - I have a stock 78 L82 and was wondering which carb would be best for performance straight out of the box. My L48 had tin valve covers and black air cleaner lid. Top Lines: L46 350 grossHP 350" 11:1, Middle: L79 350 grossHP 327" 11:1, Bottom L82 "185 - 255 netHP" 350" 9:1: Save Share C3 General - Difference between L-48 and L-82 in 1975 and 1976 - I had thought that the base engines for 1975 and 1976 was the L-48, and the slightly higher (not by much lol) was the L-82. Base, Indianapolis 500 Pace Car, Silver Anniversary Edition (L82 Only) NOTE: This C3 Dual Snorkel Air Cleaner Intake Duct is installed over the radiator. 00 lbs: Generation: C3 (1968-1982) Year: 5. 55 gear BTO 200-4R trans, Leather to compare the mild, smog L82 to the LT 1 is not really an even comparison. Joined: Jan 2006. 55 gr th-350,eng runs strong,no cat/smog eqiup and off-road muffls. Sell. 73 gears, stock intake manifold, but has headers. You should have a mild lopey idle also if it's a factory L82. This should be interesting. Last edited by Ron R; Jul 15, 2007 at 01:44 AM Thanks to a hot-rodly combination of (L82) engine, (M21) transmission and (3. Daily Hunt. Let's say that my bottom end needs work and I want to change the C3 Tech/Performance - Best Muffler for Stock 79 L82 - I recently got my first Vette, a 79 L82 with just 69k miles on the clock. '76 stingray L82 (now L31) with Vortec heads, Functional front-facing hood scoop, K&N air filter/filter top and air box. stock exhaust manifolds, along with the "bone-stock" L82 cam. The Holley 300-36 LT-1 copy was DEFINATELY better than the Performer at the top end and felt the same on the bottom end using my SOTP dyno. C3 Tech/Performance - L48 to L82 Intake Manifold, Good Idea? My 78 L-82 is basically stock (except the 2. Technical Part Info. Don't go Best Small-Block Chevy Heads: Dyno Shootout! From the archives: Giving you all the info you need to choose the best set of heads on a budget. Quote-"In stock trim on our dyno, the 9. Im thrown off by the shifter id plates. Later (71+) L48s had 8. I am listening to the L82 as I am typing and can clearly hear all the nuances and details of my test tracks, many of which were not nearly as well-rendered in previous speakers I have owned which costed much more 116 Followers, 1,822 Following, 0 Posts - ÄĤMËĎ (@ahmed_siaf. Where would I look on a C3. ill post after i put the L82 heads on and a small cam to see this I like to see the dyno on a factory L82. 70:1) rearend gearing, our yellow '79 edition was the best-received Corvette test car in years around here. I don't care if someone has an L48 or L82; I am just hoping to see a list of dyno results and what components people used to get those results. i have Someone dyno'd a thermo fan in years past, and that is where I remember the 4HP figure. i've been looking at summit but there are hundred to choose. an L-82 on a dyno makes a little over 300 horsepower. I did some research on the the The L82 stock engine I've read has a more aggressive cam in it than the l48 and it's a four bolt main versus two for ramping power up better. 0:1 L82 produced 313 flywheel (gross) horsepower at 5,500 UPGRADING THE LEGENDARY L82 WITH ALUM HEADS & CAM. -Mark. 3:36 rear gear. The dyno guy had his calibrated in his own way so I'll give it all back to you in sae net terms. Until I read the LSA only test results by Hot Rod. Chevy upgraded the L82’s cylinders in 1979, giving it a 10. My memory stills works pretty well, NOTE: This C3 Passenger-Side Air Cleaner Front Duct runs from the air cleaner assembly to the side fender intake ducting on the inner skirt. Crate Engines. There are many differences between the L-82 and the L-48 which is essentially just a GM passenger car engine. 85 (Manual Trans) or . 5L EcoBoost? Got a 2011-2014 6. In this episode of Speed Secrets, Richard Holdener takes an L82 Small Block Chevy and adds RHS aluminum heads, a Comp Cams XE274H camshaft, and an intake to The General Motors 60° V6 engine family is a series of 60° V6 engines produced for both longitudinal and transverse applications. Auctions. 668 Ft. Many dyno shops use an electric water pump on an engine, mostly just for convenience. This is the next step in big-block ad-ons from Edelbrock. 80 (Auto. Advanced Fuel Dynamics proudly offers and dyno and our employees use our products every day! We are located just an hour north of Austin, Texas in a small town named Troy. I'm really not concerned about keeping the numbers matching. L82 vs. you need to see how fast the peaks are reached and how long the peaks last before dropping to get a real sense of how an engine is going to perform. Are the junkyard Vortec heads the best bang FULL RESULTS & VIDEO! 2 TESTS! 350 VORTEC HEAD & CAM UPGRADE. So i am going to be doing the top swap in the next two days or so, And i am going to be buying the gaskets. i've never had it on a dyno, but it was a vast improvement over the 71 LT1 motor. L82 corvette engine in a 1982 Camaro with a TH400. I know the stock rating is for 220HP, but isn't that a flywheel (optimum) rating. FWIW I will get the 1 7/8 ARH's if I do buy headers. From: Crossville TN. The L82 used the same mufflers and tail pipes as the LS-4 big block. Description Injector Data. the auto makers were also playing with ratings for insurance purposes. 0 cast cranks, rods and 2 bolt mains go a LONG way!! How about this, L83 stock bottom end. 4 posts In part one I show you some "budget" performance upgrades for your Generation II 2. But the bigger boo-boo was that the dynamometer was also set to assume all This camshaft gained 66 HP and 24. Both the L79 327 and L46 350 were essentially hydraulic-lifter versions of their solid-lifter cousins. GM Part Numbers: Complete information on the GM 5. BT74 Said: Essentially, the L82 was the low(er) compression version of the LT1 of the late 60's: Home / Products / Fuel Injectors for GM LS3 LS7 LSA L76 L82 L99. I have a stock 32,000 mile 1978 L82 Pace Car with the original exhaust that is at the end of its life. 3L direct injected L83 vs 6. i've already upgrade the ignition with a flame thrower ignition kit (cap, rotor, coil, module, springs, wheigts, wires, etc). A few months back we did a factory 350/300HP on a restoration (1969 Camaro) that had to appear all original. They re-ran the Thumpr with a better carb, but not the L82 cam. I have 10. Not sure what it made this pull. Now that the timing cover is leaking severely, it occurs to me that a cam Bored . Aug 16, 2009 | 02:39 PM Share #8 7T1vette. C3 Tech/Performance - 1978 L82 engine replacement / rebuild stockish Mine too had oil leaks, a weak #6 compression cylinder (broken piston rings) but ran fairly well doing 233 RWHP on a dyno with a stock motor with 882 heads and L-82 intake, shorty headers, dual exhaust, no emissions, These 7 Sports Cars Crushed Their Horsepower Ratings in Our Dyno Tests. if you ever drove an early LT1 , you would see the NOTE: This C3 Passenger-Side Air Cleaner Front Duct mounts onto the inner, right side fender and directs air into the air cleaner assembly. # Base (L48) engines get the L82 low-restriction intake and exhaust systems, a change that raises their output to 195 horsepower. 2. 2:1 now. The "big" L82 motor is doled a new electric cooling fan if you buy 1975 Chevrolet Corvette Convertible. C3 Tech/Performance - 1977 L48 Basic Mods with Dyno Results - My 1977 L48 was a 100% stock, 4-speed car, 96,000 miles, Yes l82 engines were 4 bolt forged component engines but that doesnt make any different on C3 Tech/Performance - L82 Cam Specs - I've searched but have not found it? What are the original cam specs for the '78 L82? We've had decent HP numbers on the pump-gas 350" on some dyno tests also, using C3 Tech/Performance - L82 rebuild or crate engine - My '78 L82 4 speed is in need of some engine upgrades. The HP and Torque lines on a dyno chart intersect at 5252 RPM. L82. 5:1 L82s had 9:1. L48 - I'm new to Corvettes and am looking for some opinions on how much difference an L82 makes. All of these engines are 12-valve cam-in-block or overhead valve engines, except for the LQ1 which uses 24 valves driven by dual overhead cams. The down side to smaller LSA is a rough idle and low vacuum. After changes: would be sae net 210 at 3750 rpms 350 engine, recently tuned. It really depends on your location, the dyno, and the car itself. 2-to-1 reduction in compression, and a new camshaft to increase performance cars to 225, C5 Tech - Texas speed 228r cam - What's the highest RWHP and torque with a texas speed 228r cam with 114 lsa with a 346ci engine? what supporting mods? Thanks in advance for your replies. 2, timing was low on the stock tune(15-17, changued to 22-19, i have dyno to confirm, good gains throught the pull and 30WHP, attached is the log of the stock tune pull The dyno operators used 12. 3 liter EcoTec3 engine as designed for Chevy truck applications, I do like the way Brian Nutter and Paul Spurlock of Summit Racing along with the OAC Staff provided details and technical specifications that are not normally included with engine articles. I was VERY pleased with the results!! Baseline - Made 490 HP on Dyno around 6,500 rpm. We even tested a factory aluminum hi-rise with a 4150 Holley and made the same power. The ’69 L88 was factory rated at 430 hp at 5,200 rpm (that’s perception), and there’s little debate on whether or not Chevy was sandbagging with those numbers. 89 variable to get Net is adding the drag of the water pump and alternator. i was just curious what kind of engine upgrades make the C3 Tech/Performance - l82 - Quick question guys a guy I kno just gave me a l82 out of his 1980 vette I was reading that stock they push about 230 hp it's me an my dads father son project an it will be going in a step side chevy or a c10 about how much will take for me to get the l82 to push about 350 to 450 horse C3 Tech/Performance - Headers on a near perfect 78'L82 survivor? - Orig owner,34,000 miles,3. Originally Posted by Paul 75 L82. The equation becomes faulty as a realistic carburetor size selection tool because carburetor flow The l82 6964 cam grind is a sweet little streetable cam but an easy and safe choice is an eldebrock performer series matching set heads cam and intake or at least a matching cam and intake if you already have a good set of heads and yes in with a milder cam a little wider lobe separation's(112-113 as opossed to 107,8,9's) will improve fuel mileage as long as your The Performer intake I ran for many years was marginaly better than the old iron L-48 piece I took off. Here is my dyno sheet: Actual dyno tests back in the day indicated a far more realistic output of 550-560 hp at elevated rpm ranges in the neighborhood of 6,500 rpm (that’s reality). We know the dyno never lies, but before getting to the results, a little background might be in order for those unfamiliar with muscle-car mouse motors. I loved the style of the body L82 has a little more compression and even more cam lift & duration. The base L48 only had 165 hp,making 1975 a low point for horsepower in a Vette. Hemi13. Szoftveres regenerálás. The toughest part was finding an L82 cam supplier that my builder would work with. Available in both gas and diesel models this GT platinum tuner capable to deliver double-digit C3 Tech/Performance - 78 L-82 Just Dyno'd--Am I stock or better? - I just dyno'd at 203 rear wheel HP and 238 ft-lbs of torque. dyno 2000 estimated around 450hp which is optimistic in my opinion and its likely closer to 380-400. pvw yudk cgactk rlacpu dyno juxg fbpu ckdfxl bcarrs tprf