60Ft. Problems
03-27-2004, 03:55 AM
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60Ft. Problems
I have an '02 Gmc Sierra Regular cab 4.8L and it seems like it leaves the line slower than it should i have a hypertech prgmr. dynomax exaust k&n Intake and a .373 rear end my 60' times are like 2.3 seconds with no traction problems. Does anybody else have this problem and what can i do? 
03-27-2004, 05:12 AM
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2.3 is pretty normal with the limited mods you have. Some poeple get 2.2s and a few 2.1s with those mods. Try pulling the spair, tailgate, and a few other things to drop weight. Also try stalling it up to @1200rpms to bring it closer to the power band of the line. What times are you running now?
03-27-2004, 09:58 PM
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What about the freeway
Originally Posted by Flyer
A tt3000 should get those times down to around 2.1 or a high 2.0
Otherwise ... it seems about normal.
Otherwise ... it seems about normal.
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03-27-2004, 10:45 PM
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not much higher than you are now. I run about a 3,000 stall now and if I can keep my foot out of the gas, which I can't. I get about the same gas mileage, and I only run about 2600 rpms at 70mph.
03-27-2004, 11:21 PM
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Originally Posted by Daniel's02GMC
But what kind of RPM's can i expect to run while going down the freeway?
I honestly can't think of 1 drawback to a 3000 or smaller stall. No loss of drivability, can still tow, same highway gas mileage. Then step on it and it'll smoke the tires into second gear.
03-27-2004, 11:47 PM
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How much and where
Originally Posted by Black Blown 02
Exact same rpm's. Both the stock stall and tt3000 have a lockup clutch for a 1:1 ratio at cruise.
I honestly can't think of 1 drawback to a 3000 or smaller stall. No loss of drivability, can still tow, same highway gas mileage. Then step on it and it'll smoke the tires into second gear.
I honestly can't think of 1 drawback to a 3000 or smaller stall. No loss of drivability, can still tow, same highway gas mileage. Then step on it and it'll smoke the tires into second gear.