Put the Tahoe on the rollers, graph and video
#1
Put the Tahoe on the rollers, graph and video
Wanted to get a baseline before the GT2-3 cam went in. She put down 403/453 in 108*, so I was not too disappointed.
The upper red lines are current mods, less the GT2-3 cam and with a really dirty air filter (didn't notice until the cam swap):
The lower blue lines are same as above, but with stock manifolds, Y pipe and cats, 3.3" pulley, 93 tune on 93 gas, stock flex fuel injectors, and 58* weather.
I was expecting more gains from the addition of catless LT's, E85 tune, injectors, and 3 lbs. more boost, BUT it was 50* hotter so not ideal for FI. Truck pulls great though, so I wouldn't care if the dyno read the same, still puts a smile on my face when I hit the skinny pedal
Video to come, have to upload it from camera.
Dyno numbers with new cam to come as well when I have a free weekend. I want to do it with similar weather to get a more accurate comparison.
The upper red lines are current mods, less the GT2-3 cam and with a really dirty air filter (didn't notice until the cam swap):
2003 Tahoe Z71 5.3 FlexFuel: Radix, 3.0", CTS-V h/e, LPP LT's, KB BAP, 75# inj, Wheatley E85 tune, 40k cooler, servos, HD2, 05 fans, 22" Magnaflow, Hotchkis sways, panhard, trailing arms, Edelbrock IAS, 3.73s
I was expecting more gains from the addition of catless LT's, E85 tune, injectors, and 3 lbs. more boost, BUT it was 50* hotter so not ideal for FI. Truck pulls great though, so I wouldn't care if the dyno read the same, still puts a smile on my face when I hit the skinny pedal
Video to come, have to upload it from camera.
Dyno numbers with new cam to come as well when I have a free weekend. I want to do it with similar weather to get a more accurate comparison.
Last edited by TX Tahoe Z71; 07-05-2011 at 03:47 PM. Reason: removed my name from pic
#5
Cool, I've only seen one other blown Tahoe in Houston (as far as I know), it was an all black NBS and had a "Supercharged" emblem on the liftgate. The one you saw wasn't mine, mine looks completely stock (heat exchanger painted black in the front) and the only things that would give away that is isn't stock are the blower whine, the exhaust noise (which goes through a 7"x12" round then a 22" long magnaflow, so it's quiet just cruising), or the 275/60/17 Hankook Ventus RH06 tires.
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