handbrake turns on the STi DCCD system
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handbrake turns on the STi DCCD system
I was practicing handbrake turns the other day and realize that I may have been screwing up my the diffs on my STi. I know that in normal 4wd cars, you need to depress the clutch before handbraking so you don't screw up the diff by making the front and rear wheels go at different speeds. I also know that applying the handbrake on the STi unlocks the rear diff because of the DCCD system.
So, my question is... can I pull a hand brake turn on the STi without being in neutral? That is can I be in 1st or 2nd gear while making the 180 so that I can start hitting the gas just as the car turns around? I've seen the drivers on the WRC do this. These drivers have the front wheels gripping hard as the make the handbrake hairpins and as the let go of the handbrake, the rear wheels start biting in. Can I do this on my STi or will it be wrecked?
Thanks!
So, my question is... can I pull a hand brake turn on the STi without being in neutral? That is can I be in 1st or 2nd gear while making the 180 so that I can start hitting the gas just as the car turns around? I've seen the drivers on the WRC do this. These drivers have the front wheels gripping hard as the make the handbrake hairpins and as the let go of the handbrake, the rear wheels start biting in. Can I do this on my STi or will it be wrecked?
Thanks!
Registered User
Joined: Apr 2003
Posts: 128
From: Maui, Hawaii
Car Info: 2004 WRX STi
Yah... but the WRC drivers get new drivetrains every few races...
Pulling the e-break doesn't physically unlock anything, it just changes the electromagnetic signal going to the center diff. Pulling the e-break is the same as putting the diff in manual and rolling the dial all the way back. All this does is keep the diff from binding up when there are different rotational speeds on the fronts and rears.
If your in first or second... doing about 3 or 4 grand... that means your wheels are spinning just about as fast (I'm being real sloppy with my math
4000rpm divided by 3 for first... times three for final drive... Real sloppy... to lazy to find the actual ratios 
) As long as your in gear, your wheels spinning are "directly" connected to your engine spinning... Instantly stopping your rears from spinning means something between your engine and your rear wheels has got to give...
Do your car a favor and put the clutch in...
Pulling the e-break doesn't physically unlock anything, it just changes the electromagnetic signal going to the center diff. Pulling the e-break is the same as putting the diff in manual and rolling the dial all the way back. All this does is keep the diff from binding up when there are different rotational speeds on the fronts and rears.
If your in first or second... doing about 3 or 4 grand... that means your wheels are spinning just about as fast (I'm being real sloppy with my math
4000rpm divided by 3 for first... times three for final drive... Real sloppy... to lazy to find the actual ratios ) As long as your in gear, your wheels spinning are "directly" connected to your engine spinning... Instantly stopping your rears from spinning means something between your engine and your rear wheels has got to give...Do your car a favor and put the clutch in...
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