I have a mt awd high horsepower sedan and I would like to learn how to "read" the lights for best launch. I want to try this purely for the fun of it and I will readily admit I know nothing about drag strip technique. Any advice? My car is an 08 Subaru sti with 500+whp.

 

green=go! dont you have launch assist stock?

 

Car has a "flatfoot" launch assist in the latest version of the tune. Turn off traction control, floor the accelerator and car will rev to about 3500rshared_pm and build 4-5lbs of boost for stronger launches. What I meant was about how to gauge the lights as they cycle through on the tree. Wait for green, go on yellow, etc? Thanks!

 

depends on how your car reacts

basically first thing you want to do is consistently stage the car in the same spot every run then try to leave on the last yellow and adjust when you leave on what your r/t are.


you wont have good ones to start but you'll get there with some practice.

 

thats all the boost it builds? how much do you run at full boost?

 

Thanks to slow306stang, that is the kind of info I was looking for. I would also like to hear from any awd drag racers on driving techniques unique to the awd platform. To answer jkpa45's question about boost, the car was just retuned with a new header and fmic to 29lbs of boost.

 

Rana.. Lmk when u going to the track ,I'll go with u and give u step by step pointers.Pmed u

 

While the reaction time does not matter when you're test and tuning, I like to see how low I can get my reaction times.

The way I launch my Legacy is that when I see the last yellow pop up, I immediately start slipping the clutch and when I feel the car starts moving then lift my foot as fast as possible while being WOT. It takes practice so you can feel exactly at what RPM the car likes to be launched at. I don't use launch control either since my turbo doesnt take long to spool. With this launching technique, my R/T is always under .200, with my best being a .015.

I always suggest slipping the clutch a little to get the car moving as these AWD cars will bog when the track is prepped right or they will spin if the track isn't when you side step the clutch, especially when you are launching in boost.

 

Thanks to Tupass and ShockerGT! I hope to get the car to Bradenton soon. Maybe Bobby(S&R Performance) will come too, he sees this car as (rightly) his creation. I have been covered up with work and my son is going to Miami to college soon, so I have been focussed on other things, but I appreciate all the helpful comments. I don't want to break it, but it has reached the point where it's potential can no longer be realized on the street.












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