Originally posted by nebulous123
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E46 M3 suspension in E30, doable with minimal fabrication?
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2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
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Originally posted by nrubenstein View PostHow are you with the plastic welding? I can't imagine that it will fit. I'd love to have a plastic fuel tank, though. These metal ones suck ass.
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Are you planning on doing the same thing that this guy did and cut out the rear section to accommodate the suspension and suspension load? Good luck with that..
I actually put some thought into this a while back..
I think the better/cheaper/faster way would be to use e9x rear hubs. Make custom tubular arms and mounting points to your chassis and existing subframe. This way you can keep your existing subframe/fuel tank/ differential. Only thing you will lose will be the spare tire well. Since e9x run the spring further rear, your tubular arms can be made to work with coilover system in the rear. This also opens any diff that will work with the e30 speed sensor on the diff. Also since your arms are custom, you can run any track you want. Either same track as e46/e9x or stock e30. Of course custom half shafts.
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^ why?
seems to me that this sort of insane fabrication for the purpose of swapping suspension is only worth it if the outcome provides vastly improved suspension dynamics.
retaining the E30 subframe defeats that purpose, confining you to a trailing-arm geometry, which is likely half of what such fabricators are trying to get away from (aside from the glory and kudos of completing the job).
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You will not be using the existing e30 trailing arm mounting points. The e9x hub will be tethered to the e30 subframe. Unless you can get the stock arms to work. The are the arms next to the yellow subframe bushing.
The upper arms to the rear hub will be tubular arms similar to this.
If you were planning on cutting up an e46 and graphing it to work in an e30 I think it takes a longer time than you think. Fuel feed, return, refueling will have to be addressed. Where are you getting a signal for the speedo? I dont think the e46 fuel level sender works with motronic 1.1 or 1.3.
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Originally posted by XvillainousX View PostAre you planning on doing the same thing that this guy did and cut out the rear section to accommodate the suspension and suspension load? Good luck with that..
I actually put some thought into this a while back..
I think the better/cheaper/faster way would be to use e9x rear hubs. Make custom tubular arms and mounting points to your chassis and existing subframe. This way you can keep your existing subframe/fuel tank/ differential. Only thing you will lose will be the spare tire well. Since e9x run the spring further rear, your tubular arms can be made to work with coilover system in the rear. This also opens any diff that will work with the e30 speed sensor on the diff. Also since your arms are custom, you can run any track you want. Either same track as e46/e9x or stock e30. Of course custom half shafts.
While I agree e90 setup is more contained and less parts to mount, I already have the e46 suspension and got it for a killer deal. Ditching it and trying to get an e90 setup doesn't seem worth it to me unless I got a killer deal again.
I wouldn't mind making some sort of tube frame in the trunk for supporting the m3 suspension but I would like to stay away from starting to customize the suspension pieces if possible. Does that make sense?
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Originally posted by nebulous123 View PostSo I haven't thought that far into yet which is why I made this thread...to see if other people had done it before and if they had thoughts on it.
While I agree e90 setup is more contained and less parts to mount, I already have the e46 suspension and got it for a killer deal. Ditching it and trying to get an e90 setup doesn't seem worth it to me unless I got a killer deal again.
I wouldn't mind making some sort of tube frame in the trunk for supporting the m3 suspension but I would like to stay away from starting to customize the suspension pieces if possible. Does that make sense?
And as a bonus, you'd be able to do 90% of the fabrication on a bench, not under the car.2006 GMC Sierra 2500HD 4WD LBZ/Allison
2002 BMW M3 Alpinweiß/Black
1999 323i GTS2 Alpinweiß
1995 M3 Dakargelb/Black - S50B32/S6S420G/3.91
1990 325is Brilliantrot/Tan
1989 M3 Alpinweiß/Black
Hers: 1996 Porsche 911 Turbo Black/Black
Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd
sigpic
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Originally posted by nrubenstein View PostAnything is possible. There was also an E30 with a C4 corvette rear end, as well as the V10 E30 M3, which iirc has an E60 rear.
SILBER COMBAT UNIT DELTA (M-Technic Marshal)
RTFM:http://www.r3vlimited.com/board/showthread.php?t=56950
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