Rose joints on steering LVVTA

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McGregor Motorsport

Re: Rose joints on steering LVVTA

Post by McGregor Motorsport » Thu Oct 06, 2011 6:45 am

I only have Lower A-Arm drawings. Are you certain you cannot swap the arms from right to left? We had Tie rod bind under bump on the 18 causing toe in and understeer. We swapped them over right to left side and cured all the bumpsteer as well as gaining 1.2 sec per lap.

The other thing to consider is that Collin Chapman actually dialled bump into some of his cars to improve tight corner handling so maybe thats the issue? LVVTA are anal about bump but I don't believe they have a true understanding of its affects in cornering. I know they are chasing safety and rightly so but go do a bump test on a new Falcon or Holden and see the result.....enough said....

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Re: Rose joints on steering LVVTA

Post by bzrse7en » Thu Oct 06, 2011 8:08 am

If I do use rose joints, then whatever bumpsteer was removed, can be put back in.
The arms will sort of fit, but just look very wrong, they kind a droop downwards and I am sure their effective length will be shorter because they droop down as apposed to them sitting horizontal.
The whole steering needs a rethink thou as the escort rack won't work, with the pinion position, the column takes up the same space as the brake pedal.
It is back to the herald rack which will work, I just have to work around the screw cutting on an area with a flat machined into it.


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