ls7 compression test spec site www.corvetteforum.com|ls7 turbocharger problems : department Store The maximum effective compression ratio of a stock LS7 (11:1 compression ratio) with 4 PSI of boost would be an effective compression ratio of 14:1. If you added a cam . 31 de mai. de 2022 · Comando VP - Polícia Militar cumpre mandado de busca e apreensão em condomínio de luxo
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Unfortunately, getting decent results from a compression test can be very misleading. Case in point, when my LS7 let go back in 2009 I did a compression test before pulling the heads. Believe it or not, even with a . For Intercooled ProCharger EFI/TPI applications with compression ratios less than 9.5:1, boost levels of 14-17 psi can be safely run with full . The maximum effective compression ratio of a stock LS7 (11:1 compression ratio) with 4 PSI of boost would be an effective compression ratio of 14:1. If you added a cam . This past weekend I decided to continue going down the rabbit hole of figuring out what might be leading to my oil consumption. I figured a compression test would be cool to .
First of all you need the "compression tester" tool, that you can find at any auto parts stores for around . Don't pay more for the most expensive ones, its not necessary. . Production LS7 4-bolt block forged crank, rods, pistons 11.25 to 1 compression open chamber aluminum heads mechanical camshaft .520/.550 lift low-rise aluminum intake Holley 800 vacuum secondary standard open air . C6 Tech/Performance - Compression test results normal? - Im going to get a supercharger but first i did a compression test to see if i need to forge the bottom end or if i can play with the stock ls2 this summer and forge the engine next winter. the results Driver side, front to back: 188 187 188 174 Passenger side,. C6 Corvette ZR1 & Z06 - LS7 Heads milled at .030 and compression. - In preparation for my LS7 rebuild it was necessary to get an exact compression measurement, so I had Phil at AI measure my heads. My heads measured at 64.2cc after they were milled at .030. If you are using OEM head gaskets then your static.
4. have valve guide/wiggle test done. your due at 34k all 3 tests are very easy to do. you could replace the valve seals and do the wiggle test at the same time for very little cost. quite simple. so is the compression test. but again, just about every LS motor has oil film in the intake. i bet your fine. but the smoke is uncommon.
Valve guide wear can affect any LS7, from any year of Z06 production. It’s worth pointing out that valve guide issues are a guaranteed problem. Some LS7 motors have sailed past higher-mileage numbers without even a pip of an issue. What some people are narrowing it down to is a supplier issue. C6 Corvette ZR1 & Z06 - [PICS] Halltech's new Katech Track Attack LS7 spec for E85 - 427ci LS7 12:1 compression Katech forged pistons, 2618 material Solid bronze connecting rod bushings DLC coated pins Piston squirters Camshaft - Torquer LS7 but on a 116LSA (a little milder) C5-R timing chain Head studs/main studs. Here's a shot of the intake ports on the aluminum heads(12363390). They're listed as having 110cc chambers. 290cc Intake runners and 2.25 valves. C6 Corvette ZR1 & Z06 - FAST LSXR 102mm LS7 intake manifold dyno test results - Test engine: Halltech's E85 Track Attack LS7 CR: 12:1 Camshaft: Torquer LS7 on a 116LSA (milder) Test A (C2-8279) - LS7 intake manifold, 90mm TB, 100mm MAF, Killer Bee intake Test B (C2-8318) - LSXR intake manifold, 90mm TB, 100mm MAF,.
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C6 Corvette ZR1 & Z06 - LS7 Wiggle Test DIY - We get several email/pm a month in regards to the procedure for conducting a wiggle test on a C6z06 corvette. . CorvetteForum - Chevrolet Corvette Forum Discussion; C6 Corvette, 2005 - 2013; C6 Corvette ZR1 & Z06 [Z06] LS7 Wiggle Test DIY; Notices. Sort Threads by Model: ZR1 | Z06 | Show All .
Overall, I'd like to give a huge shoutout to Tony Mamo (Mamo Motorsports) for his exceptional customer service and skill-of-the-craft in assembling a WICKED performing heads/cam package.I also want to point out that - due to budgetary constraints - I did NOT upgrade any of the intake system, despite Mr. Mamo's strong recommendation, and as you . The 2025 Zr1’s new twin-turbo, 5.5L flat-plane-crank LT7 engine makes more power than two LS7 engines. Top speed is over 215 mph. Today, GM took the covers off the most powerful and fastest Corvette of all time, the 2025 ZR1.We’ll have a lot more coverage to offer over the next few days. C6 Tech/Performance - Cam spec opinions Comp LSK 110+2 - Was leaning towards a Katech Torquer 110 for my bold on, no head work '09 LS7 until a trusted shop offered up an opinion. Suggested going w/a Comp LSK 227/239 .639/.649 110+2.looking to pull the trigger on the kit ASAP, wanted some quick opinions from anyone. C3 Tech/Performance - LS build - LQ9 reliability and slight performance bump - I decided to call it quits on my Smeding 383 build, and am switching to an LS build, mainly because I got a deal on a reman LQ9 6.0 long block. So I have some questions in regards to LS build for reliability. The reman is pure factory spec,.
C5 Tech - Compression test results.low numbers? - I just did a compression test on my stock short blocked ls1 with ported & milled 243 heads, blower cam of unknown specs. Results I got: ---Rear--- 162---167 165---165 157---165 160---165 ---Front-- Is it just me, or are these numbers really low for the small cc'd.
Correct, to take advantage of the inertia in the incoming air column at speed, the intake valve closes AFTER bottom dead center, during the compression stroke, by quite a bit. The definition of Dynamic Compression . C3 Tech/Performance - 454; LS-5, stock cam spec? - Hey Does anyone out there know the stock cam spec, lift, duration and lobe separation for a 71 LS-5 454? Any ideas on a mild cam upgrade using mildly port heads, Tri-y headers and good machine work? carbster09 Autocrossing & Roadracing - Leakdown compression test on ls3 - LOOKING FOR THE ACCEPTABLE PROCEDURE TO ISOLATE CYLINDERS ON LS3 FOR LEAK DOWN TEST OF CYLINDERS Does anyone know the proper way to isolate cylinders on an LS3 to do a leak down compression test? Today, I tried pulling the fuse to the ECM, but this also.
C5 Tech - Help me troubleshoot low compression on newly rebuilt LS1 - After the daunting task of yanking my 144K mile engine, sending it out to my machine shop, getting it back in the car, it fired up immediately but with a misfire on cylinder 2. After some trouble shooting, compression test, leak down test, etc, I've.C6 Corvette ZR1 & Z06 - LS7 Wiggle Test DIY - We get several email/pm a month in regards to the procedure for conducting a wiggle test on a C6z06 corvette. Bellow is a brief DIY for the wiggle test . . There are far more out of spec than in spec based off the ones that have been checked, especially with that mileage. I never said it was going .
A compression test tests only the ability of the cylinder to seal.something like an issue with a valve not opening or a wiped cam lobe will not be revealed in the old school compression check.I do a “relative compression” test with a lab scope that takes 2 minutes and no removing of the spark plugs !! The new z06 Vettes are fully 3 seconds faster to 100 than this very quick shifting test was able to do, and still idle about as smoothly as an L48! The 71 LS6 Vette really was one fantastic car. I just really wish they had released the 1970 version of the L89 and L88. With the extra 27 cubes and 4 barrel only, they were renamed LS6 and LS7.
C6 Tech/Performance - Water in oil LS7 - what should I check before I pull engine? - First time doing heads/cam swap on a car. Working on a 2008 z06. This has been a real treat lol. Got the car assembled and loaded base tune, car ran and drove fine. Did not do any hard driving, maybe revved to 3-4k a couple times to. C6 Corvette ZR1 & Z06 - Best NGK spark plugs for H&C LS7? - I have a 2006 ZO6 with built LS7 Earl short block 12:1 compression with milled stage 3 heads and cam in the 230/240 duration range at .050 lift. Power is in the 550 - 570rwhp range. When I bought the car it had NGK iridium TR7IX spark plugs and after adding. C4 Tech/Performance - Yet another "which cam should I use" thread. LS version - Hey guys, I asked this over on the LS1tech forum and got a (I feel) good answer but it may have been a little biased. The answer came from Summit Racing as they are sponsors of that forum. So I wanted to ask here and see what you guys have.
C6 Tech/Performance - rpm b-3 camshaft Specs - Saw dyno of this cam and it makes a ton of power in ls7 , is any one running this cam and if so what are the specs. Also how do you like its performance C6 Corvette ZR1 & Z06 - 12:1 on pump gas ls7? - I recently built a 07 Z06 after dropping a dam valve at 16k miles. I bought a stock crank, stock ti rods, clevite bearings, wiseco 12:1 pistons, G7X4 LG Motorsports cam, LG Motorsports 1 3/4 long tube off road headers and exhaust with oem mufflers, stock intake, stock. C6 Tech/Performance - 443 LS7 NA build - Snagged a 06C6Z for a good price and I was planning on redoing the cam and heads. Well the car was thrashed. Had destroyed suspension, two spun bearings, blah blah blah. Car now now has a 443CI with 12.3:1 compression. Oem block (and sleeves). Forged bottom end (Callies.
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ls7 compression test spec site www.corvetteforum.com|ls7 turbocharger problems