caterham tracking - what settings ?

caterham tracking - what settings ?

Author
Discussion

menostig

Original Poster:

243 posts

234 months

Tuesday 22nd April 2008
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For my 1998 1.6k supersport with widetrack front suspension and 13" wheels wearing AVON CR500s ?

Cheers.
Rog

bikemonster

1,188 posts

242 months

Wednesday 23rd April 2008
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What do you want to do with the car?

Live rear axle or de Dion?

Not sure if there is any room to adjust the rear geometry even with the de Dion axle, but here are the points which I have gathered in setting up my 7 replica to go racing. My car has a live rear axle, so all these suggestions relate to the front...

Set some toe out. This will aid turn-in but you may notice the car tramlining on straights. The more toe out you add the sharper the car will turn in and the worse the tramlining will become. Make small changes and try 'em out.

Add some negative camber. This will keep the geo "right" under hard cornering.

James

MarchHare

345 posts

206 months

Wednesday 23rd April 2008
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Race settings are circa half a degree toe out and 2 1/4 degrees negative camber with 125 mm front ride height (measured just behind the lower wishbone on the chasis rail) with 10-15mm rake (rear higher). Road settings probably more neutral to toe in, a bit less camber and a bit more ride height. Rear toe is pre set by the DeDion ears.


Edited by MarchHare on Wednesday 23 April 08:47

menostig

Original Poster:

243 posts

234 months

Wednesday 23rd April 2008
quotequote all
Thanks guys.

I'm going to continue with fast bumpy B roads and track-days.

A rack boot has split so I need to set track-in after replacing that.

cheers
Roger