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Old 03-28-2012, 05:10 PM   #126
AllOutZX2
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Join Date: Dec 2010
Fan#: 80930
Location: Cochrane, Ontario,, Canada
What I Drive: 1998 Ford Escort ZX2

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Quote:
Originally Posted by elsolo View Post
Another thing not mentioned (or I missed it) about loading up on the converter while footbraking:

The torque can get the suspension to preload more than you want. Now I have never drag raced a FWD, just the old chevelle. But if I load up the converter to 2500 rpm, the suspension loads up before the launch and it won't "hit" the tires during the launch and wheelspin is the result. Footbrake it to 1500 and it plants the tires hard when you stab the throttle.

If you are watching, the car raises up while footbraking, and that suspension travel is wasted because it is no longer used to plant the tires.

Once again, that RWD not FWD, since I have ZERO experience launching a econocar at the strip, I don't know how you are supposed to get them to plant the tires.
What you are describing to me about pre-loading suspension these are all terms are practices used for a rwd car. We are not talking rwd here. We are talking FWD. We are talking about a low stall converter that bogs the car off the line. You stab the gas, it flashes several hundered rpm's higher and results in a better 60ft time in our application.

Would I do this with rwd mustang with a healthy push-rod or mod motor hell no, but unless you get a decent stall torque this talk about pre-loading suspension is for fast rwd cars.

I'll show you a clip of my car taking off with street tires, stock converter, on the foot brake @2200rpm. For reference that's up against a 2.4L T/C PT Cruiser.

http://www.youtube.com/watch?v=ANH3XxcNkRA

I tried like hell to get more out of the converter but she won't stall more then that with the wtq it's making.

So are we on the same page that launching a low powered fwd is much different then launching a healthy v8?

Trust me I would be doing what you described if I owned and raced a v8.
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Shawn
1998 Ford Escort ZX2
Full Bolt-On's, SCT VCT Tuned ECU, 3500rpm Edge Racing Stall, 205/60R13 M&H D.O.T Street Slicks
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