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'99 Corvette FRC stock HPTuner scan

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Old 04-06-2007, 08:06 PM
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Default '99 Corvette FRC stock HPTuner scan

If someone feels bored and wants to browse through this scan of my stock '99 C5, I would appreciate any feedback. Do you see any gains available from the tune... The drivetrain is absolutely stock - for now.
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File Type: hpl
CLYDE99VETTE3-27-07.hpl (87.3 KB, 68 views)
Old 04-07-2007, 10:14 AM
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attachment not downloading for me, but usually from stock form there's a couple horses to be had
Old 04-08-2007, 08:30 AM
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it works for me, you just have to right click and save as then rename the extension to hpl


it looks you need to cut the timing a little bit because your getting too much kr

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Old 04-08-2007, 02:53 PM
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Originally Posted by 2MuchRiceMakesMeSick
it works for me, you just have to right click and save as then rename the extension to hpl


it looks you need to cut the timing a little bit because your getting too much kr
Looks like it was only in 1st gear, but definitely some nasty KR flare up. Possibly TQ mgmt engaging along with TCS, WOT looks to be a bit rich, probably free up some horses by leaning out a tad. Wideband data would be more useful but going by O2s and trimming, looks a little bit rich.
Old 04-09-2007, 10:54 PM
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I appreciate the comments. Unfortunately I forgot to turn off traction control, so after feeling it engage I backed off the throttle, turned it off, and got back on it. I don't know if that is what kicked in the knock or just too much timing. Also note that the intake air temp. was 109 degrees.

I am a little old school, this being the first LS1 I have had. I am suprised by the small amount of timing advance that the LS1 requires. Is it common to be in the low 20s at wide open throttle? I would expect mid 30s in a first gen SBC.

Clyde
Old 04-09-2007, 11:56 PM
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LS1 cylinder head design requires way less timing than the old school sbc motors. Low 20s is a little low though. Most like somewhere between 26~30.




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