Untuned heads and LS6 cam
08-06-2008, 01:33 AM
#1
Untuned heads and LS6 cam Heads are ported 5.3 heads milled .030 with 2.02 1.60 valves.
02+ ls6 cam
Untuned the car made 385@5800 and carried it to 6700. Torque was a LOW 356 @5000 and carried til 5500. AFR was no higher than 11:1 and got as low as 10.2. Timing is still stock,
I think there is a little left in it with a tune
02+ ls6 cam
Untuned the car made 385@5800 and carried it to 6700. Torque was a LOW 356 @5000 and carried til 5500. AFR was no higher than 11:1 and got as low as 10.2. Timing is still stock,
I think there is a little left in it with a tune
08-06-2008, 03:55 AM
#2
On The Tree
Join Date: Jul 2002
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For reference, complete mods at fquick (follow link in signature)...
'02 LS6 cam, Comp Cams Hi-Tech pushrods, Absolute Speed Stage 2 heads ('99 853 castings, slightly milled ?0.040 best guess) with 918 springs and titanium retainers, FAST 78mm intake, Direct-Flo lid, descreened MAF, Jet-Hot Hookers and ORY, March pulleys, B&B Triflo exhaust, NGK Irridium plugs, stock TB, bone stock bottom end, stock lifters, rockers, self tuned with HP tuners (half-assed ~13.5+ AFR). No dyno tricks whatsoever, (30 PSI max in tires, if that, etc., no cool down - just long enough to strap her down...)
392 HP and 381 TQ, graph goes to 6400 RPM, I was shifting at 6800 RPM...
These were some of the last heads from Absolute Speed, and I'm not sure they got all the finishing touches, have many reasons to believe they may be sub-par (but could be wrong). Hope this helps you determine how much is left on the table for you. With a good cool down, better tune, inflated tires, etc... and for sure with a ported TB, could have easily broke 400 rwhp I'm sure, if I cared about dyno numbers...
'02 LS6 cam, Comp Cams Hi-Tech pushrods, Absolute Speed Stage 2 heads ('99 853 castings, slightly milled ?0.040 best guess) with 918 springs and titanium retainers, FAST 78mm intake, Direct-Flo lid, descreened MAF, Jet-Hot Hookers and ORY, March pulleys, B&B Triflo exhaust, NGK Irridium plugs, stock TB, bone stock bottom end, stock lifters, rockers, self tuned with HP tuners (half-assed ~13.5+ AFR). No dyno tricks whatsoever, (30 PSI max in tires, if that, etc., no cool down - just long enough to strap her down...)
392 HP and 381 TQ, graph goes to 6400 RPM, I was shifting at 6800 RPM...
These were some of the last heads from Absolute Speed, and I'm not sure they got all the finishing touches, have many reasons to believe they may be sub-par (but could be wrong). Hope this helps you determine how much is left on the table for you. With a good cool down, better tune, inflated tires, etc... and for sure with a ported TB, could have easily broke 400 rwhp I'm sure, if I cared about dyno numbers...
