No wonder the ZO6 LS7 HP gets choked at high intake air temps!
03-20-2006, 09:57 PM
#2
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Wow -9 at 140F. The Z06 is not going to like the summer heat. For the people who dont have the HPtuner or EFI V2 Flashscan it would be a good idea to relocate the IAT away from the engine heat.
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03-21-2006, 08:08 AM
#8
Is it necessary to pull that much timing? What does the high octane timing table look like? Couldn't be THAT aggressive...
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
03-21-2006, 08:33 AM
#10
Originally Posted by Patrick G
Is it necessary to pull that much timing? What does the high octane timing table look like? Couldn't be THAT aggressive...
03-21-2006, 08:55 AM
#11
LS2 powered Corvettes have very similar tables. I had Jayson at MTI edit those in my C6 and the car went from 12.90s to 12.40s at the track. Before the edit, I would have to let the car cool down for 20-30 min between passes to stay in the 12s. After the tuning, I could hotlap the car non-stop in the 12.40s.
03-21-2006, 09:04 AM
#12
.5 second with just a tune!!???
Originally Posted by Nine Ball
LS2 powered Corvettes have very similar tables. I had Jayson at MTI edit those in my C6 and the car went from 12.90s to 12.40s at the track. Before the edit, I would have to let the car cool down for 20-30 min between passes to stay in the 12s. After the tuning, I could hotlap the car non-stop in the 12.40s.
03-21-2006, 09:11 AM
#13
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Originally Posted by Stang's Bane
Are you saying you gained .5 second with just a tune?? I am not calling b.s. at all on you I just didn't think that much was possible.
why not... when its super hot or heatsoaked it pulls timing... no mystery
03-21-2006, 09:17 AM
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i wouldnt doubt it, its leaving alot of power out.
i wouldnt doubt it, its leaving alot of power out.
Originally Posted by Stang's Bane
Are you saying you gained .5 second with just a tune?? I am not calling b.s. at all on you I just didn't think that much was possible.
Originally Posted by ty_ty13
why not... when its super hot or heatsoaked it pulls timing... no mystery
03-21-2006, 11:31 AM
#17
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Originally Posted by Patrick G
Is it necessary to pull that much timing? What does the high octane timing table look like? Couldn't be THAT aggressive...
Its not that aggressive. GM pretty much just put it in for saftey reasons. I have done a couple LS7 cars now and have been working with the PCM. There tuning is funny in this one. You will find you cant always make much more power on the car, then sometimes you can. The temps, and other things affect this car pretty well. The AFR is the one thing that needs to be fixed on all of them, it pretty much dumps alot of fuel.
Rick
03-21-2006, 04:02 PM
#19
No, my tune wasn't worth half a second. I could have ran identical times had I let the car sit for over an hour and cool down between passes. The first time I ran it, I came right off the highway and made passes, the engine was never cool. Timing suffered the entire night. After the tuning (and 160F thermostat) the engine stayed cool and my timing didn't get pulled. It just ran consistent then.
