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Houston roll call.

Re: Houston roll call.

Postby GarrettCobb » Apr 05 2013, 6:23pm

zacharyh687 wrote:But the 4.8's torque and hp come in at higher rpm's I think the 4.8l torque comes in at 4600-4800 rpm and the 4.3l comes in sooner than that I think. and it is torque that wins races

Yeah its wayy up there but still
Here is a cammed/tuned/3000 stall/ posi single cab 4.8
And he barely pulled at the end

http://youtu.be/Mz-9TkBz-1s
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Re: Houston roll call.

Postby GarrettCobb » Apr 05 2013, 6:23pm

He ran a 10.4 @ 74mph
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Re: Houston roll call.

Postby zacharyh687 » Apr 06 2013, 3:44am

it looks like his rt was a good bit slower than yours too.. but the 4.8 is to short of a stroke motor to have the low end grunt to be a drag racing motor it build's torque to high in the rpm band. and i bet changing the rear gears to a 3.73 or 4.10 would help the truck alot but i still would suffer from lack of low end torque unless it is boosted. even then with boost it will still lack low end torque but on the top side of the rpm band is where the 4.8l shines.
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Re: Houston roll call.

Postby GarrettCobb » Apr 06 2013, 6:25am

zacharyh687 wrote:it looks like his rt was a good bit slower than yours too.. but the 4.8 is to short of a stroke motor to have the low end grunt to be a drag racing motor it build's torque to high in the rpm band. and i bet changing the rear gears to a 3.73 or 4.10 would help the truck alot but i still would suffer from lack of low end torque unless it is boosted. even then with boost it will still lack low end torque but on the top side of the rpm band is where the 4.8l shines.

Yeah gears would make a huge difference.
But with a cam/3000 stall,intake,header, and tune, the stall and tune and cam etc. should have definitely made meat out of me even at lower end.
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Re: Houston roll call.

Postby Twitchee » Apr 06 2013, 6:28am

Sugar Land
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Love my silverado.
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Re: Houston roll call.

Postby zacharyh687 » Apr 06 2013, 2:50pm

GarrettCobb wrote:Yeah gears would make a huge difference.
But with a cam/3000 stall,intake,header, and tune, the stall and tune and cam etc. should have definitely made meat out of me even at lower end.


Depending on what cam the dude had in it and whether he launched the truck right that will make up for alot sometimes it is not who puts down the most power but who can leave the line the fastest that there will kill a run his RT was almost half a second the other person slept a little before leaving the line. but it looks like he run you down on the top side of the track and that is probably where the cam really helped him.

Good run either way though damn close.
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Re: Houston roll call.

Postby GarrettCobb » Apr 07 2013, 12:44am

zacharyh687 wrote:
GarrettCobb wrote:Yeah gears would make a huge difference.
But with a cam/3000 stall,intake,header, and tune, the stall and tune and cam etc. should have definitely made meat out of me even at lower end.


Depending on what cam the dude had in it and whether he launched the truck right that will make up for alot sometimes it is not who puts down the most power but who can leave the line the fastest that there will kill a run his RT was almost half a second the other person slept a little before leaving the line. but it looks like he run you down on the top side of the track and that is probably where the cam really helped him.

Good run either way though damn close.

Yeah he said the cam peaked at 6500
But he had a stock valve train so he is an idiot for buying that cam lol
But im sure on the highway it is a monster.
Yeah his rt was .5 but his 60ft time was 2.39 or something very close to that.
Gears would make his truck get it son
And a valve train would make that cam more useful
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Re: Houston roll call.

Postby CFord71 » Apr 07 2013, 12:47am

Twitchee wrote:Sugar Land


Don't feel quite so alone on the southwest side anymore.
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Re: Houston roll call.

Postby 13blcksilverado1500 » Apr 27 2013, 4:37am

katy fry and i 10
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Re: Houston roll call.

Postby LoneStar1500LTZ » Apr 28 2013, 7:11am

GarrettCobb wrote:
zacharyh687 wrote:But the 4.8's torque and hp come in at higher rpm's I think the 4.8l torque comes in at 4600-4800 rpm and the 4.3l comes in sooner than that I think. and it is torque that wins races

Yeah its wayy up there but still
Here is a cammed/tuned/3000 stall/ posi single cab 4.8
And he barely pulled at the end

http://youtu.be/Mz-9TkBz-1s


Nice video HMP love that track...Good race
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