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heavyduty1340
13-02-2012, 06:46 PM
I had the drag car in for a wheel alignment (VT Commodore)

When I got it back, it pulled to the rhs badly

Took it back, and they tried again to no avail

Their reason is that they think the l/hand strut tower has moved slightly - seems weird to me, as the car has not changed since I bought it 3 yrs ago, and it drove fine then

All thats happened, it the entire front end was removed, re bushed, new hubs etc, and replaced

Any ideas??

bush_basha
13-02-2012, 07:13 PM
you put the bigger spacer on one side only then spaced evenly after that?

VYSHSV8
13-02-2012, 09:43 PM
That's castor busha :)

Camber is in the strut side of things ie top tilts in etc etc

And I will get back to your pm in the next day or so just been flat out at work an tired as fark as I drive long haul

VYSHSV8
13-02-2012, 09:46 PM
Faedy what you want is castor the same on each side as you are drag racing if that's what they have done when you drive in the road it will pull naturally left as that is the camber in the road

VYSHSV8
13-02-2012, 09:48 PM
What way did you put in the castor bushes faeds

heavyduty1340
13-02-2012, 10:49 PM
Fark thats a long time ago to remember Drew

Is there anything special that I should have done??

bush_basha
14-02-2012, 09:41 AM
Yeh your right, that's what I was thinking of castor bushes. Yeh with the castor bushes, there is supposed to be a bigger spacer on one side (passenger side???) can't remember the side but it has a bigger spacer and then it's spaced evenly after that. The factory did it because it was pulling to one side without it if I remember correctly.

saj
14-02-2012, 02:16 PM
Are you sure its the front? Spool and bad rear alinment will make it feel like its pulling one way.

XUV
14-02-2012, 03:02 PM
stretched the car a little under all that power .
a mate wet for a drive in a vy ute with a 1900 blower ,
driven hard by a '' daddy's got a lot of money and likes toys too ' kid .

he said you could near push the doors open on it , with the gaps that were in it .

Didn't think it would happen myself ,but e's one mate that doesn't embellish the truth .

VYSHSV8
14-02-2012, 06:25 PM
Left side has more forward castor than right in normalcy but this is a drag car on a flat surface so both should be the same in a perfect world.

Also what shane said spool will make it pull slightly also rear end alignment as he said

zorro
14-02-2012, 06:50 PM
My old ute would pull left under acceleration, turned out a rear link bar had come loose, once rectified though it pulled again which was a shagged out bush on the trailing arm. Rear subframe bushes (super pro race version) and camber kit sorted it out. Also we looked into slightly higher than standard height but softer rate springs to get more tyre surface area to the ground.

Also as drew mentioned front castor can be out. Check what washers are positioned

heavyduty1340
14-02-2012, 09:48 PM
Ive got a copy of the specs at work, but the lhs was way out compared to the rhs

Pulled the lhs front end apart tonight(was going to elongate holes in strut) and what do you know - there was still plenty of adjustment left!!

Thats 2 wheel alignment shops it have tried now - only one left to try now.

I wil drag out my old build thread for the next problem.