Primered

iTrader: (2)

What are launching at? I haven't had a whole lot of time to play with different points yet, but so far the best 60 ft i've had is a 1.72 on a SI car with lt's, duals , lid, 3.42's and a tune leaving around 1800-1900. I tried a little over 2k and it spun. Some told me that 1.72 was not very good, so i'm trying to get a feel of what I need to do, launch off idle, stall it till the brakes are about to give?

Thanks

Yank

iTrader: (181)

Best is to get your tires hot and stall it up to as much as you can that is best power output for the PT converter

gillbot

iTrader: (27)

i cut my best 60's by launching off idle.

import slayer

with my PT 4400 I can break stall it up to 3000 before the tires break loose

TXCAMSS

iTrader: (60)

My ST3500 liked to be stalled up as high as I could get it before pushing through the beams.

My PT4200 was not too sensitive to the stall rpm, but it did yield slightly better 60fts with a max rpm stall at the launch.

I pulled 1.42 60fts with it when I was a H/C and with the 383 stroker.

You definitely need a sticky tire to get maximum benefits from that TC.

Good luck!

GregWS6&z28

iTrader: (8)

2500rpms worked great for slow 1.6's and wheels up for me in my 3600lb car

Primered

iTrader: (2)

Damn, I thought a 1.72 wasn't that bad, you guys are making me feel like ****. I guess i'll go test it out again this weekend. Thanks for the advice guys.

import slayer

I had consistent 1.8 60 foot times with a 2800 stall. I cant wait to go to the track with my PT4400.

gillbot

iTrader: (27)

i'm in the 1.6's off idle.

SEB

iTrader: (12)

I have a PT4400 & I launch at 2800 rpms & pull 1.57 60fts all day & my best is a 1.53 60ft


Also that is on BFG Drag Radials too.

Primered

iTrader: (2)

SEB, I know your car, i was out at the cruise too. I'm only making 308rwhp, no cam yet, just sitting waiting to go in.

GregWS6&z28

iTrader: (8)

i just looked at my old log of my best pass with a 3800 stall and I ran that on a 2800rpm launch also.

DrkPhx

iTrader: (15)

I average 1.5x's with a best of 1.51 on MT DR's on a well prepped track. Launch varies from 1200-2400 rpms with same results.