What launching method and gear to use?

[tBSSOldblue]

Anybody have any suggestions on front/rear tire pressure for the AWD? Havent ran the SS down the track yet. Any suggestions for track prep and tips for launching? Should I launch in drive, third or 2nd? Obviously TC and ST will be off.

[GTPprix]

Obviously TC and ST off, launch in D and leave it there ;) Tire pressure wise, you should be able to get away with stock pressure but I guess if you start spinning the right front adjust as necessary lol

[TonyGXP]

if it's AWD air up to 44-50psi all around, if it's 2WD air up fronts the same, lower the backs to 22-25psi, depending on track prep the higher the better, less drag, but I had to lower mine to 22 to get Zero wheelspin, as for the shifter, I regret not shifting both 1-2 & 2-3 myself, cause when I did I picked up .1-.15 and 1-1 1/2mph, by doing it, had I done that on the day I ran my 13.49 I would have probably had a 13.3x to brag about, stock...just watch you don't shift too late...of course if your ECM/TCM are tuned, like Chris said, leave it in Drive..do it both ways if not and let me know what you gained..these trucks short shift both shifts..I leave around 1800-2000, get low 2.0x 60's all day long..I have a dozen or so passes in the 13.5's over 101 & 102, have over 25 runs in my SS so far, hope that helped..

also track prep, pull the spare it's like 70lbs or so, half or less tank of 93 (obviously 93!) and if it's hot out when you go pull the grill out and pop the passenger's side headlight out, I did when I ran in 75f weather, seemed to help (who the hell knows?) with MPH (my 60' was worse so no gain in ET, but almost a full mph) grill just pulls off, and the headlight just pops out..like 2minutes..guess the key thing is it didn't lose anything so it worked on my GP GXP, free mod, when I ran in the winter I tired it and it didn't do anything good or bad..

[AJSZR2326]

lower air in all tires to 20 psi ,( you have a compressor) take off traction & stability control, start in 3rd ( not drive, you wont need overdrive) manual shifting is fine too:D , half a tank of gas will help, remove spare tire also helps,gee if thy'll let you remove the hood take it off too:cool:
mines awd was with 2 other tbss's at track last friday night i ran 14.5/14.6 all stock except for exhaust, the other ones ran 14.1-14.7's
good luck & have fun :)

[2002SLT]

lower air in all tires to 20 psi

Why would you lower the pressure this much? Doesn't that just add rolling resistance, or drag? I don't think you have to worry about spinning all 4 tires on dry pavement.

[TonyGXP]

lower air in all tires to 20 psi ,( you have a compressor) take off traction & stability control, start in 3rd ( not drive, you wont need overdrive) manual shifting is fine too:D , half a tank of gas will help, remove spare tire also helps,gee if thy'll let you remove the hood take it off too:cool:
mines awd was with 2 other tbss's at track last friday night i ran 14.5/14.6 all stock except for exhaust, the other ones ran 14.1-14.7's
good luck & have fun :)

are you serious?:rolleyes: re-read my post and then hit the track again my way, you'll be much happier with the results..:crazy:

[1BADSS]

lower air in all tires to 20 psi ,( you have a compressor) take off traction & stability control, start in 3rd ( not drive, you wont need overdrive) manual shifting is fine too:D , half a tank of gas will help, remove spare tire also helps,gee if thy'll let you remove the hood take it off too:cool:
mines awd was with 2 other tbss's at track last friday night i ran 14.5/14.6 all stock except for exhaust, the other ones ran 14.1-14.7's
good luck & have fun :)

I run 14.0 with the spare, paper filter, half tank fuel, normal tire pressure, and left it in drive. No where near a 14.5 or 14.6. If my truck would of ran a 14.5 I would of sold it the next day.

[tBSSOldblue]

I will increase the tire pressure up to 45ish. On clean dry pavement at 36psi currently i have spun all 4 and at the track it will hook much better. As far as launching methods I am going to try Tony and Chris's ideas. Manual shifting from 1st - drive, 2nd - drive, 3rd - drive, and drive. I took it for a spin trying all methods. Hard to tell which will yield the best results. Only one way to find out :yes: Tony, did you remove the spare or anything on your 13.49 run? How the hell do u remove the spare on our SS? Its like you need to hook a gtech up to the ss before you buy it to see what it will run. LOL. If my truck runs more than a 13.7 I am going straight to the bar afterwards.

[2002SLT]

On clean dry pavement at 36psi currently i have spun all 4.


I guess I need to beat on mine a little more. :D Can you spin them without doing a brake torque?

[tBSSOldblue]

No I sure wish I could without a brake torque. I plan on getting a 3400 yank so I will be able to then. The only issue I see with my truck is that it still feels like it is a dog outta the hole which is bothering me. Still way faster than stock. I feel like it could pull harder outta the gate even without a yank.

[1BADSS]

To take the spare off. grab one of the bars under rear seat. The one with a square on the end. There is a slot in the back bumber, slide it in and crank it till the tire is laying on the ground. But give a lot of slack, then just put the anchor on a slant and slide it through. If this don't make sense. Read the damn manual.:laugh:

[TBSSTony]

On clean dry pavement at 36psi currently i have spun all 4

I'd love to see that. 'Cuz I can't believe it. I have a Vector tuned AWD and run 38psi and can rarely get the right front to slip, much less all four.

[tBSSOldblue]

Manuals, who reads them. :crazy: Its like that dodge ram commercial. Truck has all the options, but the guy still wont use the navigation. Sounds easy enough to remove now, thanks. Yay i got my chrome billet emblem off to install it in the rain. Will post track results tomorrow.

[TonyGXP]

I will increase the tire pressure up to 45ish. On clean dry pavement at 36psi currently i have spun all 4 and at the track it will hook much better. As far as launching methods I am going to try Tony and Chris's ideas. Manual shifting from 1st - drive, 2nd - drive, 3rd - drive, and drive. I took it for a spin trying all methods. Hard to tell which will yield the best results. Only one way to find out :yes: Tony, did you remove the spare or anything on your 13.49 run? How the hell do u remove the spare on our SS? Its like you need to hook a gtech up to the ss before you buy it to see what it will run. LOL. If my truck runs more than a 13.7 I am going straight to the bar afterwards.

yes I removed the spare before I left the house, also my mud flaps and bug shield, I tend to not want any extra weight seeing as that will SLOW me down some...if it comes off and doesn't negatively affect the truck take it off, like I said the spare is 70lbs or so..

[Fishhunter911]

I got my 13.6 with 40lbs in all four tires, half tank of gas, spare still under truck. Launched at 2500 rpm.. in D, pushed the gas so hard I lifted outta the seat. Thats all i got to say bout that :D

[02redhawk]

I got my 13.6 with 40lbs in all four tires, half tank of gas, spare still under truck. Launched at 2500 rpm.. in D, pushed the gas so hard I lifted outta the seat. Thats all i got to say bout that :D

Joe

Have you got a convertor? I thought our stall was ~2200rpm.

[Fishhunter911]

No, just have the stock, It seems to launch better at 2500 then anywhere else. Call me crazy, but it does. I have tried 1600 up through 2500, even did 3000 but i find the sweet spot to be 2500.

[hokie822]

Joe

Have you got a convertor? I thought our stall was ~2200rpm.

I may be stupid..but I do not understand what the meaning of this is. I don't understand what happens at 2200rpm....Could someone explain this to me..

[Crashno1]

Joe,
Are you 2 or 4 wheel?

[Fishhunter911]

AWD.... did not spin this time around. when I got my 13.8 I spun for 50 feet or so, But the track was really cold that night. Last time the track was a lot warmer.

[ghoster]

AWD.... did not spin this time around. when I got my 13.8 I spun for 50 feet or so, But the track was really cold that night. Last time the track was a lot warmer.

Thats no exactly true....you made a pretty good chirp at take off. You got traction really quick, but it wasn't perfect.:cool:

[TonyGXP]

Thats no exactly true....you made a pretty good chirp at take off. You got traction really quick, but it wasn't perfect.:cool:

you may not believe this but a small amount of slippage is ideal in a truck with 4.10's, even though you spin you're moving forward...I had almost the exact same 60's spinning and not..on my 13.49 & most of the 13.50's I left at 1800 or so and chirped out a few rotations, not the same with tall rear axles though..

[ghoster]

you may not believe this but a small amount of slippage is ideal in a truck with 4.10's, even though you spin you're moving forward...I had almost the exact same 60's spinning and not..on my 13.49 & most of the 13.50's I left at 1800 or so and chirped out a few rotations, not the same with tall rear axles though..

I believe it, I don't think it hurt his time enough to worry about either. He was trying to find the perfect launch RPM, and I think he was very very close. His previous run he spun for about 50 feet. So this worked much better. Now if I can manage to learn to stage correctly, we will finally see what the I6 will actually do.

[02redhawk]

No, just have the stock, It seems to launch better at 2500 then anywhere else. Call me crazy, but it does. I have tried 1600 up through 2500, even did 3000 but i find the sweet spot to be 2500.

Again, I'm not sure how you're getting 2500 or 3000 rpm at launch out of the stock convertor. Stall is 2200. :confused:

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[asphalt-hp]

Again, I'm not sure how you're getting 2500 or 3000 rpm at launch out of the stock convertor. Stall is 2200. :confused:

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:iagree: 2200 is max for me.

[Fishhunter911]

Not sure what to say. I have used 2500 a few times now, and so far the have been my best runs. I do not know a lot about stalls. Just so I am clear on this, if you were stall above the converters limits what will happen? bad launch, bogging down? I got a little chirp from what ghoster says on my 13.6 run, I didn't hear it, but then again, hard to say with the engine noise. Shed some light on this for me. Two best times were at 2500.

[BLUBYU]

Pre-YANK with my stock converter if I went much over 2,000 rpm my back tires would start spinning?

[Fishhunter911]

Pre-YANK with my stock converter if I went much over 2,000 rpm my back tires would start spinning?


I dont have that issue, I am AWD.

[1BADSS]

I dont have that issue, I am AWD.

I'm AWD and I can't get past 2200:confused:

[Red SS]

My best runs with the Yank SS 3600 installed I had stabilitrak and t/c disabled, and launched as high as I could go, around 3400 i think

[Red SS]

I'd love to see that. 'Cuz I can't believe it. I have a Vector tuned AWD and run 38psi and can rarely get the right front to slip, much less all four.

My AWD won't spin at all with the Yank anywhere in between 32-44psi

[BLUBYU]

My AWD won't spin at all with the Yank anywhere in between 32-44psi

how do you like the ss3600 in the AWD?

[02redhawk]

Not sure what to say. I have used 2500 a few times now, and so far the have been my best runs. I do not know a lot about stalls. Just so I am clear on this, if you were stall above the converters limits what will happen? bad launch, bogging down? I got a little chirp from what ghoster says on my 13.6 run, I didn't hear it, but then again, hard to say with the engine noise. Shed some light on this for me. Two best times were at 2500.

Throw the truck in neutral. Blip the throttle a few times to build some brake pressure, then throw it back in drive. Holding the brakes hard, depress the accelerator. Your rpms will climb only so high....the point at which you can no longer build any more rpms is your stall speed. On our stock trucks, that stall is 2200 rpm.

How ya gettin' any higher than that? Still very curious, I am!!