Got a TH400 with brake....how to launch?

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Oct 30, 2008 | 10:51 PM

TS6

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From: Champaign Il

Got a TH400 with brake....how to launch?

I'm new to the transbrake thing, so how do I launch this thing? Just stand on it or am I looking to leave at a certain RPM? Would a 2 step be super beneficial to me? Is it harder on the motor to use a 2 step? It sure sounds violent, but cool as hell too.

Oct 30, 2008 | 11:03 PM

Zombie

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From: Las Vegas

1. put trans in 1st gear and press trans brake button
2. floor car, release trans brake at desired boost/rpm
3. ???
4. PROFIT!!

if you street drive it's wise to put the button on a switch to prevent accidental activation. Don't ever touch the button wile you are moving.

Oct 30, 2008 | 11:09 PM

TS6

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From: Champaign Il

Quote:

Originally Posted by Zombie

I know that much, but thanks.

I guess what I'm wondering is if I should use a 2 step or if just bringing it up on the convertor is enough? Like I have a 4000 stall: Do I want to just stand on it, reving to 4000-ish, and launch? Or do I still need the "flash" of the convertor to get things going? Say if I use a 2 step at 2500 RPM, I stand on it, motor sits at 2500, release and it launched and flashes the convertor to lets say 5000-ish.

Hope that made sense.

Oct 30, 2008 | 11:09 PM

TS6

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From: Champaign Il

Oh, and all my stuff is on switches, just in case. LL, TB, exhaust cutout, etc.

Oct 30, 2008 | 11:17 PM

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From: Knoxville, TN

Use a two step, start at 2500rpm and work your way up. WOT on the brake will most likely slow the car down.

Oct 30, 2008 | 11:19 PM

TS6

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From: Champaign Il

Quote:

Originally Posted by kp

Use a two step, start at 2500rpm and work your way up. WOT on the brake will most likely slow the car down.

Is the LPE 2 step still the recommended unit?

Oct 30, 2008 | 11:21 PM

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From: Knoxville, TN

Quote:

Originally Posted by TS6

Is the LPE 2 step still the recommended unit?

any 2 step that works in the recommended unit

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Oct 30, 2008 | 11:34 PM

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From: Knoxville, TN

Mine was in the BS3

But the LPE looks simple enough..

Oct 31, 2008 | 12:01 AM

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sidewayz28

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From: seattle

Quote:

Originally Posted by Zombie

Underpants gnomes???

Oct 31, 2008 | 01:30 AM

#11

ninetres

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From: Mufflerville, CA

Quote:

Originally Posted by kp

WOT on the brake will most likely slow the car down.

Whys that?

Oct 31, 2008 | 02:29 AM

#12

Black X

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From: CANADA!

Quote:

Originally Posted by kp

Mine was in the BS3

But the LPE looks simple enough..

I have the LPE unit. Awesome value for the dollar

Oct 31, 2008 | 05:27 AM

#13

tomz28

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From: Saline, MI

i have a LPE very easy by the looks of it. but have not hooked it up yet cant wait

Oct 31, 2008 | 09:13 AM

#14

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From: Knoxville, TN

Quote:

Originally Posted by ninetres

Whys that?

With a blower the boost is instant and if you have the right converter you will push right past the max torque of the engine and lose the advantage of the torque multiplication. Every converter/combination is different, just takes some experimenting.

Oct 31, 2008 | 10:26 AM

#15

Pro Stock John

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4000 rpms is nothing for that combo Sam, just run it like that and get a 2 step to mess with for later. You are heavier and don't make as much power as kevin did so based on your mph of 139 best you can leave at 4000 and hopefully hit 9.8@142 or something like that.