Rear camber adjustment.

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Nato_e30
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Wed Dec 12, 2012 11:37 pm

Does anyone know of any rear camber adjusters available? Ive seen the weld on plates but that would be a last resort cheers in advance guys
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harry_p
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Thu Dec 13, 2012 3:04 pm

there is no adjustment as standard other than altering the ride height which also affects the camber.

i have heard of using eccentric bushes, but they need to be pressed in in the right position to give the camber you want which isnt easy! and to do that youre going to be not far off removing the rear subframe, so you might aswell do that and weld on some tabs so it can be set up properly once on the car.
cheers,

harry
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Nato_e30
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Thu Dec 13, 2012 9:08 pm

Hmmm I better get subframe shopping and get the welder out haha cheers harry p
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kipsy
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Fri Dec 14, 2012 9:39 am

My 325 runs about 2 degrees negative camber on the back at a guess at standard ride height. I have neg camber top mounts and lollipops on front and still the rear has more. My ones bent over time and are due to be replaced fir standard flat ones again soon. It's a rally car. If there was a cheap/easy mod I'd be tempted to buy some for myself to reduce the camber.
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Fri Dec 14, 2012 10:21 am

Are you lowering the car Graham?
You could raise the subframe instead, thus countering any camber on the rear.
There is a 12mm kit available online.
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redcar
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Fri Dec 14, 2012 3:04 pm

When I raised my rear subframe 12mm, the rear tyres started to rub loads. Had to get rid of the rear spacers :(
milescook
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Fri Dec 14, 2012 4:12 pm

This was interesting what you can do (or similar), obviously this is toe not camber but still fair play!

http://www.ppcmag.co.uk/forum/viewtopic ... 1&start=15
The story so far... http://www.cookracing.co.uk/

Also please help the race budget by watching some videos :) https://www.youtube.com/cookracinguk
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redcar
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Fri Dec 14, 2012 4:42 pm

milescook wrote:This was interesting what you can do (or similar), obviously this is toe not camber but still fair play!

http://www.ppcmag.co.uk/forum/viewtopic ... 1&start=15
You can adjust camber, toe and if i'm not being stupid, roll centre as well with that guys setup

However, these three things are adjusted when raising the rear beam 12mm.

It depends how low you want to go, but my car is quite low and with the raised rear beam, i'm happy with the camber and toe and the way the car feels. Car is much more neutral (never oversteers or understeers unless provoked).
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Screacher
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Fri Dec 14, 2012 8:50 pm

I'm about to fit a new adjustable beam and "new" trailing arms after having a slight "wheel-to-barrier" incident. Also going for different bushes (?) which mount the beam to allow lowering w/o the other issues.
milescook
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Sun Dec 16, 2012 11:14 am

About half way down this page

http://www.e30owners.com/forums/showthr ... 46&page=15

Ingenious I think, but then I'm easily pleased! :mad:

Some awesome shots to show how the drum assembley goes back together too. That's pretty handy for me at the mo as all the bits ar in a Tesco bag...
The story so far... http://www.cookracing.co.uk/

Also please help the race budget by watching some videos :) https://www.youtube.com/cookracinguk
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Nato_e30
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Sun Dec 16, 2012 11:56 am

Thats exactly my plan there miles , great link cheers :)
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Screacher
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Sun Jan 20, 2013 5:31 pm

This lot arrived this week:

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Hope to get them fitted over the next week or so.

Having seen the other thread about putting the beam, diff and arms etc back, it might take longer than I planned, though I do have extra pair of hands to help me.
milescook
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Sun Jan 20, 2013 6:09 pm

Sexy bit of kit! :D
The story so far... http://www.cookracing.co.uk/

Also please help the race budget by watching some videos :) https://www.youtube.com/cookracinguk
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Screacher
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Sun Jan 20, 2013 7:03 pm

milescook wrote:Sexy bit of kit! :D
Happy to PM the name of the fabricator (assuming he's happy to and that he isn't already a member on this forum!)
DanThe
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Sun Jan 20, 2013 7:18 pm

Screacher wrote:
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Toe plates look out of line here mate
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Screacher
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Sun Jan 20, 2013 7:21 pm

Not sure what you mean by "toe plates"? I presume it's the adjusters with the eccentric slots? I'll check but it's possibly the crappy phone-cam.
DanThe
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Sun Jan 20, 2013 7:29 pm

Look where the adjuster bolt is, the two plates the bolt is passing through are not inline with each other.
TBH I wouldnt advise to fit the plates in the way they have been done, you are removing a lot of strength by cutting the ends out of the mount, a butt weld will never be as strong as that original mount

It will probably work fine, but im a fussy c00nt like that winkeye
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Screacher
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Sun Jan 20, 2013 7:32 pm

Understood. Thanks for pointing it out.
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Nato_e30
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Sun Jan 20, 2013 8:17 pm

Danthe's rear beam
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You can see the origional bolt up parts are not cut off... they are elongated and the plates are welded against it so it reains its origional strength + more

Top bit of kit, shall be resembling it all over the next 2 weeks when all my other gear is here.
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redcar
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Sun Jan 20, 2013 8:30 pm

Nato_e30 wrote:Danthe's rear beam
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You can see the origional bolt up parts are not cut off... they are elongated and the plates are welded against it so it reains its origional strength + more

Top bit of kit, shall be resembling it all over the next 2 weeks when all my other gear is here.
thats the way I've seen most do it.
Strength and alignment
Demlotcrew
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Sun Jan 20, 2013 9:44 pm

Can I ask why you have gone for the reinforcements on the rear arms?

It looks like you might have rear ARB drop link issues with the arms as they are. Also the filler neck for the tank will be in the way.

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Andrew
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