E46 control arm swap

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Yoshi
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E46 control arm swap

Postby Yoshi » Sun Mar 07, 2010 2:39 am

I'll keep this simple as possible.

Why do this? Allegedly you gain 40mm of spacing. Basically you can run much much wider wheels and not rub (my current problem). It should also give you a bump in camber. That could be a good or bad thing though.

Hurtles:
Note the E46 control arm shown below is about a 90 degree bend while the stock E30 control arm is more of a 110-120* offset. This means M3 offset is a must.
But, if you notice, the end of the E46 control arm that meets the bushing is hexagonal. I just plan to grind it down a bit. Not ideal but eh.
Sway bars don't link to the E46 control arm. That means I either have to mount it to the strut or find a way to link it to the control arm.
I also hear you need longer tie rods to compensate for the extra distance.
I also also hear the taper on the ball joints for the control arm is wrong. But that's hear say lol.

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Re: E46 control arm swap

Postby M20_fever » Sun Mar 07, 2010 5:27 am

wow, the e46 arm looks so much more stout then the e30 unit, props if you can make these work. Won't these space your front wheels way out?
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Re: E46 control arm swap

Postby Yoshi » Sun Mar 07, 2010 5:31 am

M20_fever wrote:wow, the e46 arm looks so much more stout then the e30 unit, props if you can make these work. Won't these space your front wheels way out?

Yoshi wrote:Why do this? Allegedly you gain 40mm of spacing. Basically you can run much much wider wheels and not rub (my current problem). It should also give you a bump in camber. That could be a good or bad thing though.


Fail tony! Thats the whole point of the swap. I'm also wondering if I can press E30 rear wheel bearings into 318ti trailing arms. So I can keep my 4 lug but get that extra space out too.
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Re: E46 control arm swap

Postby M20_fever » Sun Mar 07, 2010 11:11 am

Yeah yeah, reading owns me. So are you spacing your rears out to match? When I test fit my 17mm spacers up front with no spacers in back it looked awful ans that was with 44 offset up front and 27 in the rear, your going to be way more drastic.
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Re: E46 control arm swap

Postby Yoshi » Sun Mar 07, 2010 2:08 pm

I currently run 30mm spacers in the front and 25mm spacers in the rear. I might have to run 30mm in the rear. But yea. need to find out the 318ti offset compared to the E30 ones to see if it's worth it.
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Re: E46 control arm swap

Postby M20_fever » Sun Mar 07, 2010 9:52 pm

I wouldn't bother with 318ti gear, that shit is weak. You already have over twice the power the ti had and your going to be sliding it, I would guess longevity would be an issue. The only benefit to running ti parts is the cheap 5 lug, and I doubt you can press an e30 hub in there.
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Re: E46 control arm swap

Postby Yoshi » Mon Mar 08, 2010 2:07 am

why not? I should look it up on real oem.
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Re: E46 control arm swap

Postby M20_fever » Mon Mar 08, 2010 3:36 am

because I think all e36 bearings are bigger than e30 bearings.
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Re: E46 control arm swap

Postby madmaverick » Wed Mar 31, 2010 9:24 pm

You are prolly better off getting the 5 lug rear and redrilling the hubs for 4x100 (if that is possible). Or since you are running a spacer anyway, just get an adapter to go 4lug.
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Re: E46 control arm swap

Postby Yoshi » Thu Apr 01, 2010 12:47 am

True. I'm lazy :-p. I'll figure out the rear later. Front just needs to be done. I have all the parts meow!
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Re: E46 control arm swap

Postby M20_fever » Thu Apr 01, 2010 9:34 am

keep this thread updated, very interesting how you make out with this. Zero turn e30 FTW! :)
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Re: E46 control arm swap

Postby Yoshi » Thu Apr 01, 2010 12:34 pm

zero turn? Whats that mean?

I got to finish parting out my E36, then do a manual swap in an E30, THEN I'll get to this >_<
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Re: E46 control arm swap

Postby ten2doyle102 » Thu Apr 01, 2010 12:39 pm

Your priorties are ALL f'ed up!
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Re: E46 control arm swap

Postby Yoshi » Thu Apr 01, 2010 12:45 pm

Well theres a parts car sitting in the only viable space to work on a car (on my hill) and I promised the old owner of my auto that I'd help him do the swap this weekend.
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Re: E46 control arm swap

Postby ten2doyle102 » Thu Apr 01, 2010 1:49 pm

Ah, I just giving you a hard time! Good luck with teh swap!
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