I have Compbrake adjustable top mounts for my MK1 16v Golf Track day / sprint car but i am unsure how to position them, what holes = camber/castor and what is a good starting point? The car will be driven on the road also but not daily. Any advice? [/IMG]
I don't think theres any fast rule which it the right position, as you know cambers adjustable at the bottom generally setting them to the rear is going to produce more caster, which it good trail and error in driving, with some form of measuring your angles for reference points
I've got mine at the rear to maximise castor (Scirocco Mk2) - which was based on advice from various knowledgeable motorsport types. I've got about 1* negative camber. Haven't had a chance to try it out properly yet, but the turn-in feels a lot sharper. The car has had a cage fitted at the same time though.
Had mine fitted to the rear and inside, so maximise caster and camber. Just a case of turning them until you get the right spot.
Thanks guys, i have put them on today rear and inside simlar to Jettadan, When i get it all set up properly i will try to plot the settings in relation to holes used. Thanks again for the above at least i know i am in the right ball park.
right , in "clear" the angle of the front wheel (fitted to the rear) ,are great for the grip and the return of the steering .
If you look under your bonnet, the right one (from the face, left on the car) on the picture must have about the position you see.
Im thinking of getting some of these for my mk1 golf. How do you set them up at the strut end though? is it a case of set the castor you require and get camber adjusted with the bolts on the strut at an alignment place to what you require?
so im guessing that the camber is still adjusted by the camber bolts at the bottom of the strut, and the mounts just off sest the strut enough to be able to gain more static negative camber than is possible with a normal top mount?
You don't have a fixed strut (like a mk1 Polo for instance) so eccentric top mounts don't alter your camber per se, they alter your Theoretical Kingpin Inclination.. therefore altering the scrub (pivot angle radius) Obviously once set they can be used to alter camber, but doing it that way thier nature means increasing camber reduces caster at the same time, which on track isn't always desireable.. The ability to increase the TKI is useful though if you're using high offset wheels (because of scrub) Personally I set them to the back, with "2 holes" of increased TKI (to compensate for dropped ball joints), then set the camber at the upright..
As said already, don't alter the camber from the top. Push them back for more castor and adjust the camber from the bottom of the strut. Gurds
Have a look on here.. I've called it TKI for years, but it appears there's other terms for it http://www.barsomtire.com/alignment/index.html
