Ls3 dyno numbers
Ls3 dyno numbers We took my friends 08 corvette to get dynoed at HPE. The car is a bone stock 08 corvette with the LS3 engine and Z51 package, to our surprise the car dynoed 
400 rwhp and 393 rwt. After seeing those numbers we talked to my buddy Gary owner of HPE and we are getting an HPE cam package with all the other bolt on's hoping to get over the 500 rwhp on cam only. Thanks for all your help Gary and we'll update on the new numbers as soon as we get all this parts on.
400 rwhp and 393 rwt. After seeing those numbers we talked to my buddy Gary owner of HPE and we are getting an HPE cam package with all the other bolt on's hoping to get over the 500 rwhp on cam only. Thanks for all your help Gary and we'll update on the new numbers as soon as we get all this parts on. 
Teching In
Joined: Mar 2008
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From: Katy, TX
Are those SAE #'s? Please post dyno sheet. If that is SAE than you have a STRONG LS3.
I never got to baseline mine, but it turned 426rwhp and 420rwtq with boltons in sig.
You should be good for 500rwhp with good sized cam. I love these new heads!
I never got to baseline mine, but it turned 426rwhp and 420rwtq with boltons in sig.
You should be good for 500rwhp with good sized cam. I love these new heads!
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From: Western Burbs of Detroit
Not pissing on your parade, just trying to understand what is making your bonestock ls3 different and/or better then everyone elses. Either way with 11000 on the clock she's broken in and making nice power. Throw some headers on it, (LG Pro Longtubes) and a tune she'll probably make 440 rwhp. Wishful thinking, but good luck.
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That's stout... I agree w/ Red99TA... the LS2 powered C6 never interested me. The LS3 is awesome. As someone who's modded cars constantly I can honestly say I'd get an '08 and leave the mods to a CAI nad some LT headers and call it a day.
TECH Enthusiast
Joined: Feb 2007
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From: Seattle area
Damn economy worked in my favor, because I was very close to buying an 07 C6 coupe brand new. I would not buy a Z06 because of the fixed roof, but damn it sounds like you can have your cake and eat it too with the LS3!
I wonder how it handles FI, and how the 6L80E is holding up to big power.
I wonder how it handles FI, and how the 6L80E is holding up to big power.
I'm not too familiar with what the smoothing does, but as far as the temp actually the first run the engine temp was 185 degrees and the next runs were at normal temperature they were done back to back. It did surprise me that when the engine was colder we got the lowest number, but Gary at HPE was telling me that most of the LS3 that he has dynoed, even his which he uses for testing always has made more power at normal temperature.
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From: Western Burbs of Detroit
I think the ls3's stock tune begins pulling timing above 200 degrees in effort to protect the motor. I know I heard about how finicky they are with KR and ECT sensitive.
