Car won't go straight with southside machine lift bars

1986gt · 05-19-2002, 06:46 PM

I have a car that I built for a freind of mine and we took it to the track on 5-18-02 and with street tires on it the car went straight but when we put on slicks the car went straight until third gear. First and second gear it went straight but when you hit third gear the car's rear starts to the left hard and you have to get out of it to ever get it straight again. It goes so hard i almost hit the wall.
Has anyone had any experience like this and if so how did you correct this condition. Slicks were set at 12 psi and they were M/T ET drags. Any suggestions will be appreciated.

fast88 · 05-19-2002, 07:35 PM

Did you weld the plates on or bolt them on???

gtsr515 · 05-19-2002, 07:44 PM

I've run southy's on 7 different 5.0's and never had a problem, except that "clunk" common with all southsides.

My opinion is, if your control arms were the problem, it would happen all the time, everytime, right from the get go, especially on launch, as they would be "loaded" the most then, and rebound with a problem then, purely guessing here.

I suspect a rear end problem associated with a certain speed.

Or...how about very low tire pressures?

Although i don't believe this is the case here, I am involved with proffessional racing everyday, and many F1 and Champ car drivers have complained of pulling this way or that way, and telemetry shows that the driver was actually "pulling" the steering wheel, causing the drift, trying to compensate for G forces applied to him, like I said, I dont think thats the case here, but you need to look "outside the box" here, because the description of your problem is really weird, but I love the weird ones after doing the common ones to death.

Hope this helps

05-19-2002, 06:46 PM	#1
1986gt Registered Member Join Date: Sep 1998 Location: Berea Ky Posts: 17	Car won't go straight with southside machine lift bars I have a car that I built for a freind of mine and we took it to the track on 5-18-02 and with street tires on it the car went straight but when we put on slicks the car went straight until third gear. First and second gear it went straight but when you hit third gear the car's rear starts to the left hard and you have to get out of it to ever get it straight again. It goes so hard i almost hit the wall. Has anyone had any experience like this and if so how did you correct this condition. Slicks were set at 12 psi and they were M/T ET drags. Any suggestions will be appreciated. __________________ 1986gt Vortech S-trim SQ,off road H-pipe,Edelbrock Intake, 1.7 rockers, 3.73gear,edelbrock 6039 cylinder heads and f303 cam. Best run so far 10.78@127.40 and 1.50 60 foot.

05-19-2002, 07:35 PM	#2
fast88 Registered Member Join Date: Mar 2002 Location: Rockingham,N.C. Posts: 80	weld the plates Did you weld the plates on or bolt them on??? __________________ 88 Notchback orig. 4 cylinder car with a efi v8 swap from a wrecked 89 5.0 hatch,edelbrock performer rpm's 190/160,typhoon intake,comp cams 1.6 rockers,65mm tb and spacer,pa performance c4 w/ 3000 stall,3.73's auburn pro, 31 spline mosers,mac off road h-pipe,1 5/8 shorties ,and 2 1/2 pro dumps,kirban fpr,190 lph walbrp. SOON TO BE BLOWN!

05-19-2002, 07:44 PM	#3
gtsr515 Registered Member Join Date: Nov 2001 Location: Sunny, Hot, Sebring, Florida Posts: 725	I've run southy's on 7 different 5.0's and never had a problem, except that "clunk" common with all southsides. My opinion is, if your control arms were the problem, it would happen all the time, everytime, right from the get go, especially on launch, as they would be "loaded" the most then, and rebound with a problem then, purely guessing here. I suspect a rear end problem associated with a certain speed. Or...how about very low tire pressures? Although i don't believe this is the case here, I am involved with proffessional racing everyday, and many F1 and Champ car drivers have complained of pulling this way or that way, and telemetry shows that the driver was actually "pulling" the steering wheel, causing the drift, trying to compensate for G forces applied to him, like I said, I dont think thats the case here, but you need to look "outside the box" here, because the description of your problem is really weird, but I love the weird ones after doing the common ones to death. Hope this helps __________________ Remember...2nd place is 1st place for losers!

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