If you are drag racing your car it obviously puts the whole drive system in jeopardy of breaking when you launch. Now ide say the most damage would come from the quick snap coming from any slop in the gears when you release the clutch from neutral in a launch correct? Well say if you pull the e-brake handle up a little bit when you stage to launch and torque up the drive line by having the clutch starting to engage keeping the whole drive system tight. Now when you launch just drop the clutch the rest of the way and release the e-brake and off you go hopefully with a smooth safe launch. Anyone think this could work as good as I think it can? Or better yet has anyone tried it?

Mike

 

I launch this way.I pull consistent 1.7 60fts.I think my transfer case is on the way out the door,so i dont know if its any better.

 

what RMP are you launching at this way to get 1.7 60ft's?

 

it cant be too good for the clutch...
revving high while the clutch is slightly engaged cant be too good...

 

i dont think a slight engagment would be a problem, even if it could be a clutch is a lot cheaper than a transfer case or a differential. (plus it will give you a good reason to upgrade to a better clutch )

 

The reason for the question is i plan on going to the track soon but dont want to break anything. I want to get a good 60ft but am scared of the launch. Any other proven techniques that save parts while launching.

 

I notice the best place is between 5500 and 6000rpm.What i do is pull to the line and hold the e-brake while im in first and let the clutch out until i feel it grab.THen i will back off the clutch just a hair so im not riding the clutch.Thenn on the last light i just quick slip it and smash the gas.

 

Oh and this is all done on stock clutch and snow tires.

 

I haven't tried it, and it seems to make sense, but I know there is something with the 05s that when the e-brake is activated, the acd is deactivated or something to that effect. I read it once quickly in my owners manual, but didn't really pay too close of attention to it. I'm not sure, but it seems like that make create an issue, maybe with traction, but I know you don't have intentions of having the brake engaged for any of the "moving" part of the run.

 

It's the right idea and will minimize wear. John Shepherd has used the "pre-load" technique with great success. You take-up all the collective slack in the driveline by doing this which will minimize the shock within the system (which will lessen the chance of breakage). You can do it without the e-brake by doing a real quick two-step release, first a slight release then ~.1 or .2 sec later the full release. You can still crack off 1.7~ 60fts doing this.

You just need to practice a few times to learn where the pre-load position is on your clutch, the car should not move much or at all at the first step, as soon as you feel the load release it the rest of the way and off you go.

 

Exactly my thought. I think im goin to try this when i eventually go to the track. I launched the car once at like 5k at a light by just dropping the clutch and heard a horrible clunk in the rear end. I never did it again after that so i figure this should be a good and "safer" alternative.

 

this is correct. it is just like the r32 golf. when the e brake is engaged the ACD disengages the rear wheels.

 

these are the correct ways to launching.. what breaks stuff is the instant shock to the driveline from the clutch engaging.. if your clutch or tires wont slip the old saying comes to effect... what doesnt give, will break...

 

I thought i read sumthing about that in the owners manual but dident pay to much attention to it. So does this mean that you can pull the e-brake and do stand still spinning just the front tires?? Anyone willing to try and let us know? LOL

SJ EVO 8 did you notice if you ever just lit up the front tires while launching using this method b/c of the e-brake disengagment?

 

These are all great ideas. I would also look out for any signs of wheel hop, that can lead to drivetrain breakage. If you experience any wheel hop, let off the gas or abort the run. I drag raced my Talon Tsi AWD for 7 years and never had any center diff, transfer case, or axle breakage.