DCT swap.

e90pilot · 05-07-2011, 01:44 PM

Yes, I know this will probably be waaaaaay more money than it's worth, but I'm more interested in the possibility. Setting aside price how hard would it be to get a DCT unit in a 325i. Is it controlled by the DME? Does it have it's own stand-alone module? Do you need some sort of bell housing adapter? Does it even fit in the tranny tunnel?

Bavarian Tech · 05-07-2011, 11:42 PM

http://www.m3forum.net/m3forum/showthread.php?t=360259

Couldnt find a whole lot of info on the DCT tranny

e90pilot · 05-08-2011, 12:01 AM

Interesting. Good info.

A4rings · 05-08-2011, 01:45 AM

Your problem is the engine not the trans--def better off changing that rather than the trans

Want · 05-08-2011, 02:01 AM

Maybe it's more feasible to go for an MT swap?

MPI_Jack · 05-08-2011, 02:20 PM

6 speed swap is much easier.

e90pilot · 05-08-2011, 10:59 PM

Check my sig. Already have 6MT. I was just interested if it can be done to an engine that doesn't offer it as an option. Of course it "can" be done, but how easy is it (cost aside) and what would you need. What about the V10 from the M5 (S85?). Does it have the same bell housing as the M3's V8?

mike-y · 05-08-2011, 11:16 PM

if anything, I'd be looking at the DCT that comes in the 335is.

e90pilot · 05-09-2011, 01:06 AM

Quote:

Originally Posted by mike-y

if anything, I'd be looking at the DCT that comes in the 335is.

mike-y · 05-09-2011, 11:27 AM

well, you were mentioning the V8 in the M3 and the V10 in the M5, but I know the IS has the DCT as an option (and I believe some Z4's might as well), which sounds like it could be a better fit, since those cars deal with an N series motor.

as far as programming, I don't know how that's handled. Have you checked realoem diagrams yet? maybe there is a part number. Ok, I just checked, and it isn't obvious if there is a separate computer for the trans. But a new DCT will set you back about $10,000, so start checking out those salvage yards!

05-07-2011, 01:44 PM	#1
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	DCT swap. Yes, I know this will probably be waaaaaay more money than it's worth, but I'm more interested in the possibility. Setting aside price how hard would it be to get a DCT unit in a 325i. Is it controlled by the DME? Does it have it's own stand-alone module? Do you need some sort of bell housing adapter? Does it even fit in the tranny tunnel? __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
	Appreciate 0 Tweet Quote

05-07-2011, 11:42 PM	#2
Bavarian Tech Major 267 Rep 1,203 Posts Drives: 335i Join Date: Jan 2007 Location: Pittsburgh/Harrisburg iTrader: (15) Garage List 2006 330i [10.00]	http://www.m3forum.net/m3forum/showthread.php?t=360259 Couldnt find a whole lot of info on the DCT tranny
	Appreciate 0 Quote

05-08-2011, 12:01 AM	#3
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Interesting. Good info. __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
	Appreciate 0 Quote

05-08-2011, 01:45 AM	#4
A4rings First Lieutenant 22 Rep 367 Posts Drives: 07 Space 335i Join Date: Jan 2010 Location: SBizzle iTrader: (0)	Your problem is the engine not the trans--def better off changing that rather than the trans
	Appreciate 0 Quote

05-08-2011, 02:01 AM	#5
Want YVR 22 Rep 403 Posts Drives: A Monaco Blue Join Date: Aug 2010 Location: Vancouver iTrader: (0)	Maybe it's more feasible to go for an MT swap? __________________ mbmbmbmbmbmbmb
	Appreciate 0 Quote

05-08-2011, 02:20 PM	#6
MPI_Jack Private First Class 20 Rep 143 Posts Drives: '15 X1 35i , '02 530i(turbo) Join Date: Apr 2011 Location: Miami, FL iTrader: (0)	6 speed swap is much easier. __________________ '15 E84 X1 35i M Sport MPI DME Flash - K&N drop in - MPI Chargepipe - Oil T-stat valve - ETS 5" I/C - N54tuning 3.5" downpipe - catless mid section - Dinan 135i rear exhaust - Apex ARC8 18x9/10(255/295 tires) - H&R Sports - Bilstein B6's - F3x M Performance brakes '02 E39 530i 624whp/558ft-lbs @23psi
	Appreciate 0 Quote

05-08-2011, 10:59 PM	#7
e90pilot Freight Dawg 104 Rep 2,103 Posts Drives: E90 325i Join Date: Jul 2005 Location: Oakland, CA iTrader: (3)	Check my sig. Already have 6MT. I was just interested if it can be done to an engine that doesn't offer it as an option. Of course it "can" be done, but how easy is it (cost aside) and what would you need. What about the V10 from the M5 (S85?). Does it have the same bell housing as the M3's V8? __________________ --Marcelo '06 Arctic Metallic 325i \| Sport Package \| 6MT \| Dinan Stage III suspension \| Dinan exhaust \| 330i manifold swap! Click here! \| Active Autowerke tune \| 135i Brake Calipers \| Deiselboost caliper brackets \| E46 M3 front rotors
	Appreciate 0 Quote

05-08-2011, 11:16 PM	#8
mike-y just another bmw douche bag 195 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	if anything, I'd be looking at the DCT that comes in the 335is.
	Appreciate 0 Quote

05-09-2011, 11:27 AM	#10
mike-y just another bmw douche bag 195 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	well, you were mentioning the V8 in the M3 and the V10 in the M5, but I know the IS has the DCT as an option (and I believe some Z4's might as well), which sounds like it could be a better fit, since those cars deal with an N series motor. as far as programming, I don't know how that's handled. Have you checked realoem diagrams yet? maybe there is a part number. Ok, I just checked, and it isn't obvious if there is a separate computer for the trans. But a new DCT will set you back about $10,000, so start checking out those salvage yards!
	Appreciate 0 Quote