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Old 05-23-2010, 07:11 AM   #1
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Default Offset bushings for more camber?

Did my first race in the Swedish MX5-cup last week. Finished (out of 20cars) 10th in the first race and 12th in the second. Sounds better then it is, since some fast drivers didn't come to the start. But most importantly, I had such a blast!

Now, camber! I am running -1.7degrees on all 4 wheels, but my R888s keep telling me they want more. More more mooore! I would like to be able to get around -3. I've read some time ago that there are offset bushings for the Miata, moving the lower control arms out, but I havn't found any. I would prefer this solution to rewelding the arms or the mounting points. Anyone?

Thanks,
/T.
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Old 05-23-2010, 09:33 AM   #2
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I run -3 in the rear @ 12.75" hub to fender height. Control arms not warped? What suspension is on the car?
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Old 05-23-2010, 10:46 AM   #3
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Oscar's car sounds like a best case scenario- Torkel's camber numbers are more typical and usually what I've seen. I've successfully used offset delrin bushings to add neg. camber several times, but you need to make sure that the bushing itself is offset drilled and that the "bearing" sleeve is just a normal cylinder. The bushing material is then held in place using a set screw through the control arm bushing housing. ISC has what you're looking for. That said, any machinist can cut you a set of bushings and set of brass sleeves to fit- and it might be cheaper than buying/shipping from the states.

btw- are you running the series IL Motorsport is sponsoring?

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Old 05-23-2010, 11:29 AM   #4
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ISC has some pretty bad *** stuff. Any other race shops offer bushing packages?
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Old 05-23-2010, 03:15 PM   #5
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Yes, my cars values are typical for a straight NB with correct ride height, completly in line with what the other cars get with stock suspension. I could get up to -2.0 in the rear, but I prefer to not have more camber in the rear then in the front.

Quote:
Originally Posted by m2cupcar View Post
btw- are you running the series IL Motorsport is sponsoring?
Wrong part of Europe, buddy I am Swedish, not German... nor Swiss.

Thanks for the info! I'll check around some more and see what I can have made locally, but the stuff from ISC looks promising.

Last edited by Torkel; 05-23-2010 at 03:49 PM.
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Old 05-26-2010, 11:14 AM   #6
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My NB at 12.75 was only able to get - 1.7 I am thinking about getting those Tubular Control Arms from 949racing
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Old 05-26-2010, 12:03 PM   #7
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I have the superpro with the adjustable camber lower bushings. they work well and will let you add/subtract a pretty good amount...can't remember how much though but I think it was in the vacinity of +/-2 degrees.
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Old 05-26-2010, 12:15 PM   #8
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Actually didn't know where the series was running, Ingo just told me that he was sponsoring two cars and the series.

I like the ISC stuff. They do a good job of producing parts that get results w/o costing a fortune. And then they prove their parts on the track. I've never seen them show up at the track with a slow "shop car".
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Old 05-26-2010, 12:26 PM   #9
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I have offset bushings in my car (front upper arms) and find that while my camber numbers are great, it's difficult to get the caster where I'd like it. At the -2.3 camber I have in front, I can't get under about 5.3 caster, which with a de-powered rack is a little heavy in tight turns. We did find that the more camber we cranked in, the less caster I could get... just didn't want more than what I have for a street driven car.
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Old 04-22-2013, 08:37 AM   #10
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does anyone have measurements for these?

Thinking about letting a friend machine me some to get some more camber

thanks
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Old 07-17-2013, 11:23 PM   #11
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2nd that question. trying to make some myself!
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