Martin Plant Posted July 3, 2003 Share Posted July 3, 2003 Dumb question, which I'm sure has been answered a dozen times in the archives...... My rear ACB10s have worn very unevenly (worn out on the insides) which leads me to suspect that the camber is wrong despite previous owner using slicks on it exclusively. Hopefully someone will be able to answer a couple of questions for me: What size de dion ears should I have for ACB10s on 8.5" rims How do I tell what size it currently has installed? Thanks in advance Martin www.caterhamblackbird.com Link to comment Share on other sites More sharing options...
scooby dooby doo Posted July 3, 2003 Share Posted July 3, 2003 ACB10s require less camber. I think the 2 ears are 0.25 and 1.5 degress negative camber. if you take the ear off it has 0.25 or 1.5 stamped on it. not sure where though.... HOOPY R706KGU Hoopylight R Link to comment Share on other sites More sharing options...
robmar Posted July 4, 2003 Share Posted July 4, 2003 my newsih ears has the number imprinted on the top so you can just about see it if you take the wheel off rob Link to comment Share on other sites More sharing options...
Low Toose Posted July 4, 2003 Share Posted July 4, 2003 I say, I thought one was being insulted. Link to comment Share on other sites More sharing options...
Martin Plant Posted July 4, 2003 Author Share Posted July 4, 2003 Prince me old mate, long time no hear Martin www.caterhamblackbird.com Link to comment Share on other sites More sharing options...
Martin Plant Posted July 4, 2003 Author Share Posted July 4, 2003 Hoopy, Robmar Thanks for the info. No visible markings on mine without removing them. Might be easier to switch to radials ❗ Martin www.caterhamblackbird.com Link to comment Share on other sites More sharing options...
Graham Perry Posted July 4, 2003 Share Posted July 4, 2003 Sounds like less camber is needed though Edited by - Graham Perry on 4 Jul 2003 16:14:34 Link to comment Share on other sites More sharing options...
stevefoster Posted July 4, 2003 Share Posted July 4, 2003 The newer ones have the camber stamped on top. On older ones it's stamped where hidden when bolted up. You can get 1.5, 1.0, 0.5, 0.25 too. 0.25 is the thing for ACB's. Speedy Steve's Workshop, Race reports, work done here Hants (North) and Berkshire Area club site here Link to comment Share on other sites More sharing options...
Gridgway Posted July 4, 2003 Share Posted July 4, 2003 normally acb's on radial camber settings wear on the inside, not the outside. So I have no idea what is going on here. Graham Ps written using the tablet PC input panel. Not one error with my handwriting!! Fantastic Link to comment Share on other sites More sharing options...
Bilbo Posted July 4, 2003 Share Posted July 4, 2003 Interesting I had not realised there was any variation err 15 years on think mine are 0.75 🤔 1.5 well that would restrict the end from going out...... no fun, with my A032 its seems hard to get the back going ..... in the dry. So why 1.5 🤔 Have to say my car is set rather neutral. So where is "On older ones it's stamped where hidden when bolted up" Prince Charles 😬 'Can you hear me running' ......... OH YES and its music to my ears 😬 😬 😬 1988 200 bhp, 146 ft lbs, 1700cc Cosworth BD? engineered by Roger King, on Weber's with Brooklands and Clamshell wings, Freestyle Motorsport suspension. Link to comment Share on other sites More sharing options...
Martin Plant Posted July 4, 2003 Author Share Posted July 4, 2003 Graham - mine have worn on the insides - I think I said that. Martin www.caterhamblackbird.com Link to comment Share on other sites More sharing options...
NickD Posted July 5, 2003 Share Posted July 5, 2003 Even the 0.25 degree ears still seem to give too much camber, so that the tyres still wear on the inside. I (& several others) have had the ears machined parallel (0 degree) to correct this. I've since made some tapered plates to give +0.5 degress camber and this now gives even wear. Due to their construction, crossply tyres such as ACB10s take on negative camber when placed under cornering load and therefore need far less static camber. Link to comment Share on other sites More sharing options...
stevefoster Posted July 6, 2003 Share Posted July 6, 2003 Wear and ultimate speed are not necessarily the same thing. Depends what you are after. The live axle racers all have to have 0 or thereabouts camber, they seem to get on fine too. With about 0.25 degrees I do get reaonably consistant temps over the tyre surface. A little more (and it is only a little more) wear on the inside is not too much of a worry as the grip and handling are consistant. Speedy Steve's Workshop, Race reports, work done here Hants (North) and Berkshire Area club site here Edited by - stevefoster on 6 Jul 2003 11:03:41 Link to comment Share on other sites More sharing options...
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