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Re: Adjusting roll out on chassis car.
[Re: Jonnyj00]
#1618678
05/11/14 09:42 AM
05/11/14 09:42 AM
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Joined: Mar 2006
Posts: 9,848
MI, usa
dvw
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master
Joined: Mar 2006
Posts: 9,848
MI, usa
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Quote:
I have a chassis car that has mustang 2 front suspension on it and I was wanting to try and adjust the car's roll out. I have been having trouble with red lighting and was wanting to try off setting the front tires a bit. I haven't tried adjusting anything yet I wanted to ask somebody that has some experience with this before I messed with it. I have tried adjusting my trans brake button all the way out, letting some air out of the tires and lowering the launch rpm. I am still having trouble with red lights.. Any help/advice would be much appreciated 
I would try taller front tires and see if that helps first. The mod your talking about would require the lower and upper control arm locations to be moved forward or rearward. Have you tried a blinder? I'm assuming we are talking .500 full tree. How bad are the red lights?
Doug
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Re: Adjusting roll out on chassis car.
[Re: dvw]
#1618679
05/11/14 10:34 AM
05/11/14 10:34 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Quote:
I have a chassis car that has mustang 2 front suspension on it and I was wanting to try and adjust the car's roll out. I have been having trouble with red lighting and was wanting to try off setting the front tires a bit. I haven't tried adjusting anything yet I wanted to ask somebody that has some experience with this before I messed with it. I have tried adjusting my trans brake button all the way out, letting some air out of the tires and lowering the launch rpm. I am still having trouble with red lights.. Any help/advice would be much appreciated
I would try taller front tires and see if that helps first. The mod your talking about would require the lower and upper control arm locations to be moved forward or rearward. Have you tried a blinder? I'm assuming we are talking .500 full tree. How bad are the red lights?
Doug
Like Doug said... if you want to stagger the front
end you have to cut that whole assm off the chassis
and move it.. normally the right side is moved rearward
to keep it in the lights longer.. mine is moved 3/4"
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Re: Adjusting roll out on chassis car.
[Re: '72CudaRacer]
#1618683
05/11/14 03:44 PM
05/11/14 03:44 PM
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Joined: Dec 2009
Posts: 161
SE Iowa
Jonnyj00
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Posts: 161
SE Iowa
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The car doesn't seem to transfer very well to me so maybe that could contribute some? Here is a video of a pass I made last year. Im not sure it will work but ill try. http://youtu.be/Gw7mN8X_JIAThis is a pass I made when I was just trying to get used to the car so I try to stage a little more careful than this lol.
Last edited by Jonnyj00; 05/11/14 03:51 PM.
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Re: Adjusting roll out on chassis car.
[Re: Jonnyj00]
#1618688
05/11/14 10:23 PM
05/11/14 10:23 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
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Master
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Posts: 52,972
Romeo MI
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Quote:
Last year before we had the shallower pan we had to raise the front suspension of the car a bit so that the oil pan had some clearance. We did it by adjusting the adjusters on the coil springs. Would that cause this problem?
Yes... you took away font end travel
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Re: Adjusting roll out on chassis car.
[Re: Jonnyj00]
#1618690
05/11/14 10:44 PM
05/11/14 10:44 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Posts: 52,972
Romeo MI
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Quote:
Ok I will definitely lower that back down. Is there a way to know how far to go or just a test and try deal?
Thanks guys when it comes to this race suspension I have little to no idea!
Are you using struts.. if so whats the travel
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Re: Adjusting roll out on chassis car.
[Re: MR_P_BODY]
#1618692
05/12/14 12:37 AM
05/12/14 12:37 AM
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Joined: Dec 2009
Posts: 161
SE Iowa
Jonnyj00
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SE Iowa
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I know they are coil overs but i am not sure on the travel they were on the car when we got it.
It also has cables that limit the front end travel. So I need to check that also.
Last edited by Jonnyj00; 05/12/14 12:45 AM.
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Re: Adjusting roll out on chassis car.
[Re: Jonnyj00]
#1618693
05/12/14 01:07 AM
05/12/14 01:07 AM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
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Posts: 52,972
Romeo MI
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Quote:
I know they are coil overs but i am not sure on the travel they were on the car when we got it.
It also has cables that limit the front end travel. So I need to check that also.
So you have a coil over shock... lower the front down
and loosen the limiters till you have problems
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Re: Adjusting roll out on chassis car.
[Re: MR_P_BODY]
#1618694
05/12/14 02:29 AM
05/12/14 02:29 AM
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Joined: May 2004
Posts: 2,864
IN
Irun5snd8th
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IN
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Follow the advice of others here and then get one of these Just N Time transbrake button
AFCO, Rons Fuel Injection sponsored Dodge Challenger
Mention Street Lethal Motorsports
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Re: Adjusting roll out on chassis car.
[Re: Irun5snd8th]
#1618695
05/12/14 07:44 AM
05/12/14 07:44 AM
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Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
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Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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The first thing I saw in the vid was the right front tire pop out of the beams on the hit. Get some travel into the front end, soften the front shocks and see what happens. You need three inch or more rise I would think. If you still can't keep the front in the beams and roll through for max roll out, then if possible raise the ladder bar front hole as far as you can to change the pitch rotation of the car. If you go above what they call a neutral line with the front ladderbar hole, it pushes the nose down for an instant before allowing it to rise. I could change mine by .02 this way. Hopefully it will work for you like it did for me.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Adjusting roll out on chassis car.
[Re: gregsdart]
#1618696
05/13/14 01:37 AM
05/13/14 01:37 AM
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Joined: Jan 2003
Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
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Posts: 10,010
Frostbitefalls MN (Rocky&Bullw...
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What ETs are you running? At some point it gets really hard to leave off a last yellow, the car is just plain too fast. One idea would be a VERY loose converter and a low rpm two step.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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