What did you do to your NNBS GMT900 Tahoe/Yukon Today?
- Thread starter phattyford
- Start date
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R3cord303
Posse In Effect
Dyno!
Final numbers- 295 wheel horsepower and 300 pounds of torque
Final numbers- 295 wheel horsepower and 300 pounds of torque
HiHoeSilver
Away!
Go team TYF!
HiHoeSilver
Away!
I agree. HP for red.
Sounds awesome!
R3cord303
Posse In Effect
completly stock exhaust. Just cat and resonator delete. Stock tubing diameter, stock manis, stock muffler.
But yes! I agree! Thank you. No drone at 60+ but some very little drone at 55
kbuskill
***CAUTION*** I do my own stunts!
Sounds great!!!
How does it feel off the line now without the cats?
You may not notice any loss of torque since you upgraded the cam and got it tuned... mine was tuned prior to the cats being removed so for me it was a noticeable loss of torque before I downsized the Y-pipe.
R3cord303
Posse In Effect
Only difference driving around town with cam is that it shakes a little bit. I haven’t launched it yet so cant say for sure- but in just driving it or ‘spirited’ driving- its quick. Not knock your socks off fast- but good lord it pulls. It pulls and pulls and pulls. Power delivery is smooooooooooth. I need to fiddle with shift points because it pulls all the way to 6,000 and 1-2 is at 5,800 and 3-4 is at 5,000. Needs to be moved up. 1-2 at 6,000 and 2-3 at 5,800.
gooffeyguy
Tom
Is that good or about normal for a 5.3?
2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
R3cord303
Posse In Effect
Tuner said a stock 5.3 on a dyno tune on 91 octane will be about 240 or 250 wheel hp
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