trans abuse questions

[TrentNell]

some know i 'm just starting to run a 1st delete in my truck at the track been testing on the street and the launch is great it launches hard and smooth but at anything above 16 psi boost i dont loose traction but i have felt a light almost like a shutter but i have 1 bolt siezed on my traction bar that is loose i think i was feeling the chassis shutter but not sure , but was curious how much harder on the trans and drive train the 2nd launch is, have there been any failures ? so far i have high hopes for the track and my sixty foot times ,from what i have tested it seems far easier to stage less fighting the brakes, and less tire slip plus no shift till 48 mph gotta be worth .2 or 3 between 60 ft and 1 less shift . btw best 60 to date is 1.8#s

 

[RPM Motorsports]

Could be your front driveline rubbing. I think Idahorob and others had this problem with hard launches!

 

[TrentNell]

Could be your front driveline rubbing. I think Idahorob and others had this problem with hard launches!

i'll have to look at it and see if theres a rub mark .

 

[2wd_Sled_Puller]

Wacth your flexplate

 

[LBZ]

some know i 'm just starting to run a 1st delete in my truck at the track been testing on the street and the launch is great it launches hard and smooth but at anything above 16 psi boost i dont loose traction but i have felt a light almost like a shutter but i have 1 bolt siezed on my traction bar that is loose i think i was feeling the chassis shutter but not sure , but was curious how much harder on the trans and drive train the 2nd launch is, have there been any failures ? so far i have high hopes for the track and my sixty foot times ,from what i have tested it seems far easier to stage less fighting the brakes, and less tire slip plus no shift till 48 mph gotta be worth .2 or 3 between 60 ft and 1 less shift . btw best 60 to date is 1.8#s

I'm running the same tires as you except 35's on 18" rims. Do you run out 4th gear to the 1320 line or do you shift into 5th?

I'm going to try this 2nd gear business in the next week. If it works out for me, then I'm only going to be making 3 shifts in the quarter which I think will get me in the 12's.

 

[LBZ]

Nevermind-I just noticed your running an '01 (5speed)!

:hello:Rob, wheres the forehead smack smiley?:rofl:

 

[TrentNell]

I'm running the same tires as you except 35's on 18" rims. Do you run out 4th gear to the 1320 line or do you shift into 5th?

I'm going to try this 2nd gear business in the next week. If it works out for me, then I'm only going to be making 3 shifts in the quarter which I think will get me in the 12's.

at the track i run 295/45r20 toyo's proxes 30.5 in. tall coopers are now winter tires.

 

[Mike L.]

Probably the only thing being punished with 2nd gear starts is the converter. It will stall out higher and heat up more.

 

[LB7Diesel]

Probably the only thing being punished with 2nd gear starts is the converter. It will stall out higher and heat up more.

Yes it does!! And after a few back to back run's it went to shit shifting. My best 60's are with first gear

 

[JoshH]

Yes it does!! And after a few back to back run's it went to shit shifting. My best 60's are with first gear

Mine are too.

 

[TrentNell]

thanks for the info guys , if it werent for my traction issues i would agree on the sixty times but , rear diff is open cause locker is shot , i will give it a try and if it slows down i 'll go back to 1st launch, thanks agian

trent