Re: James/BigAsh 182 Race Car by TDF... It doesn't get much better than this! *Pic He
You'd be better off raising the pick up points on the subframe like what kenny has done with his to adjust the roll centre. The only other options is to use a similar setup to the cup racers. I'm just in the process of trying to find a company that will heat treat and strengthen the pins for me so I can give them a try. If I have no joy I'll have to re-engineer them. No big drama if I have to, just means spending a bit more time on the lathe when I should be working! Lol!
Have you designed an extender pin holder and pin to suit the cup hubs?
All just seems a lot of dicking around really, all this is very well until you hit something, and then you have got try and get it all fixed in a week because there is another race coming along.
Imo its all alot of dicking about. As Tony says when it breaks you need to start again. We deliberately stuck with as many stock parts as possible on our car for this reason. Running the cars on road tyres your never going to get massive benefit from all theze changes. Cost vs. Benefit/improvement wise. AST top mounts have been fine on our car. Its done over 35 hours of track time and they were on my road/track car before. They may look frqgile with only tiny little bolts holding them on but they dont take any load.
I agree with what Tony and Jay wanting off the shelf parts and being available if the worst happens, I do too but with limited adjustment available with the Clio you have to change some things.
Roll centre adjustment is something easy to do like just Kenny has four cuts and 8 little wedges welded in, all achievable on the car, lets face it if you are needing to replace the subframe from a bash your also going to have a lot of other work too. You could replace with a standard subframe while in a rush to get you out again, same with modified arms.
Extra caster is easily achievable on a Clio by adjusting the lower arm bush offset like so
There's an easy 11mm of adjustment available by just off setting the bushes before you even have to modify the shape of the arm, no need to re-drill ball joint mount.
All that's needed is 2 large washers welded in the right place and one of the bushes to be pushed in from the inside. It would be ideal for people running AST mounts as the 2 combined would give a good amount of caster.
For people running the pure motorsport kit and powerflex bushes on there lower arms, these need modified anyway to work. I keep meaning to speak to Pure as there kit seems to be fitted equally on each side of lower arms and with a small adjustment in design they could be selling kits that alter the caster by varying degree's.
Could someone confirm how much adjustment in millimetres a AST top mount gives you off the centre point???
