Complete drive train swap question

vdpsc · 12-31-2022, 10:41 AM

I have a low mile 2006 330i e90 manual that was hit severely in the side. Super clean otherwise. I would like to swap everything over to a wagon preferably. I found a cheap e91 wagon but it’s an xit awd. Does anybody know if the hard points on the chassis are the same? I would plan on swapping everything. Engine, trans, subframe, suspension, brakes, etc. I was planning on just leaving the rear suspension in it. Gear ratio of the xi rear end should make it marginally quicker.

JupiterBMW · 01-09-2023, 07:56 AM

No, its not the same. Transmission braces are different between xDrive cars and RWD cars. Custom trans brace needs to be made. Unless you plan to swap in an M3 drivetrain or 335 drivetrain, it really isn't worth it. Take that factory E91 and do a few mods. You can do a 3 stage intake manifold, tune, and then do XHP xDelete software and you'll be in roughly the same place you were as if you swapped a 330i drivetrain into the car.

Better yet, swap in a 335xi drivetrain.

12-31-2022, 10:41 AM	#1
vdpsc New Member 2 Rep 20 Posts Drives: BMW 330xi Join Date: Aug 2018 Location: midwest iTrader: (0)	Complete drive train swap question I have a low mile 2006 330i e90 manual that was hit severely in the side. Super clean otherwise. I would like to swap everything over to a wagon preferably. I found a cheap e91 wagon but it’s an xit awd. Does anybody know if the hard points on the chassis are the same? I would plan on swapping everything. Engine, trans, subframe, suspension, brakes, etc. I was planning on just leaving the rear suspension in it. Gear ratio of the xi rear end should make it marginally quicker.
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01-09-2023, 07:56 AM	#2
JupiterBMW Self Proclaimed Roundel Junkie 627 Rep 1,593 Posts Drives: '11 E90 M3 & '13 F25 X3 Join Date: Aug 2012 Location: Jupiter, FL iTrader: (6)	No, its not the same. Transmission braces are different between xDrive cars and RWD cars. Custom trans brace needs to be made. Unless you plan to swap in an M3 drivetrain or 335 drivetrain, it really isn't worth it. Take that factory E91 and do a few mods. You can do a 3 stage intake manifold, tune, and then do XHP xDelete software and you'll be in roughly the same place you were as if you swapped a 330i drivetrain into the car. Better yet, swap in a 335xi drivetrain. __________________ 2018 F15 X5d Carbon Black/Nutmeg Individual- Oil Burner Tow Rig 2013 E82 1M3 Carbon Black/Black- S65/DCT Track Toy 2013 F25 X3 35i Alpine White/Chestnut- German American Family Hauler Past: '11 E91 335is, '11 E90 M3, '10 X5M, '14 328d, '03 330i Dinan3 ZHP, '04 330i ZHP, '12 X3 35i
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