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Originally Posted by fmcokc
(Post 1568808)
Hi Harold, I’m in the same boat as Bronson. I also have a V8 Miata with a T56 gearbox that I want to get rid of so badly I can’t stand it. Did you ever happen to get that measurement on the centerline to the bottom of the transmission so we can see if this would work in a V-8 swap Miata?
thanks in advance Chris One time, pull away from a stop and it just nails the first few changes up through the gears. Sometimes will hang the shift, sometimes would kick on TC on the shift. It was awesome when working correctly, but that was about a 50/50 bet on any given day. |
Originally Posted by z31maniac
(Post 1569073)
The money for the standalone controller is definitely $$$. But the stock TCU sucks terribly. Check the forums. I had mine reprogrammed twice in 18 months of owning it because it would behave bizarrely and inconsistently.
One time, pull away from a stop and it just nails the first few changes up through the gears. Sometimes will hang the shift, sometimes would kick on TC on the shift. It was awesome when working correctly, but that was about a 50/50 bet on any given day. |
Originally Posted by Bronson M
(Post 1569075)
The controller that Harold is running is just over a grand USD so it's actually not all that bad considering the functionality of it. That'll be what I do if we can verify it fits with a V8 and I can convince myself the 50lb weight penalty is worth it.
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Originally Posted by Bronson M
(Post 1569075)
The controller that Harold is running is just over a grand USD so it's actually not all that bad considering the functionality of it. That'll be what I do if we can verify it fits with a V8 and I can convince myself the 50lb weight penalty is worth it.
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https://www.dkgecu.com/
These are the guys, and sorry the quote I got was 999 Euro's. So factoring in the exchange rate that's 1092 bald eagles They have a working LS swap and plan to offer LS hardware as well. |
That looks amazing. Really makes be want to put this trans behind a turbo K series...
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I'd be lying if I hadn't thought about this instead of a 4 speed for the LS car.
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Originally Posted by z31maniac
(Post 1569073)
The money for the standalone controller is definitely $$$. But the stock TCU sucks terribly. Check the forums. I had mine reprogrammed twice in 18 months of owning it because it would behave bizarrely and inconsistently.
One time, pull away from a stop and it just nails the first few changes up through the gears. Sometimes will hang the shift, sometimes would kick on TC on the shift. It was awesome when working correctly, but that was about a 50/50 bet on any given day. Ok, I am a bit confused here. So what did you have reprogrammed? The BMW TCU or the aftermarket ECU? What is this in? Also, who are you and where can I see this. I see that you are in OKC and so am I. |
in my mx5 i bypassed the bmw tcu. you could see it if you want. let me know next time you are in Norway :D
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Dct
Originally Posted by hf-mx5t
(Post 1556021)
If parts were made available for sale, would there be any interest? i can make and supply 7075t6 billet flywheel adapter with ss2541 Splined adapter for DCT transmissions. Will bolt on to a miata 1.8 flywheel and mate to a DCT perfectly.
Engine mounts to raise the engine the correct amount could also be made, and probably the trans mount. custom driveshaft can be made but shipping would be expensive from norway. A kmiata 6speed e46 bmw trans plate would have to be sourced in the US(no point in shipping it back and forth). |
Got my tranny, gutted the BMW TCU.
Adapter plate and all the trimmings on the way, Can't wait https://cimg8.ibsrv.net/gimg/www.mia...14eb735f22.jpg |
Originally Posted by fmcokc
(Post 1573074)
Got my tranny, gutted the BMW TCU.
Adapter plate and all the trimmings on the way, Can't wait |
Originally Posted by Bronson M
(Post 1573076)
very nice! Can you do me a favor? Slap a tape measure on the trans and get a measurement from the centerline of the input shaft to the bottom of the pan or whatever is lowest. A few of us are trying to see what it would take to fit with various motors.
https://cimg8.ibsrv.net/gimg/www.mia...e3e1390bc.jpeg |
Originally Posted by fmcokc
(Post 1573078)
8 3/8” from my quick measurement. It appears the very front edge of the pan is the lowest thing on the transmission
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So here's a measurement for you guys considering an LS. I've measured 2.75" to the pan rail. I'm running a 5" kevko road race pan for a total of 7.75" from crank centerline. So we're looking at this thing hanging 5/8" lower than the pan......or just enough to concern me. I'll have to check again and see for sure how low that is in relation to the frame rails and other items that should prevent a holy trans pan.
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I'm looking for the pin outs for a E46 M3 DCT shifter. It's a 2005 if that matters. I'm not starting my swap by buying a part a day. Although I do have a mental note to do this swap in 2021.
This is for iRacing. I've decided I want a sequential shifter controller and the good ones start at $300. Since I think a fly by wire car controller is a lever, knob, microswitches, I'll start with that. I got a E46 DCT shifter off eBay for $40. Add $10 key/joystick USB controller, I should be there. Can anyone point me at a PDF for the E46 M3 DCT shifter pin outs? Bill |
Originally Posted by billybobster
(Post 1579096)
I'm looking for the pin outs for a E46 M3 DCT shifter. It's a 2005 if that matters. I'm not starting my swap by buying a part a day. Although I do have a mental note to do this swap in 2021.
This is for iRacing. I've decided I want a sequential shifter controller and the good ones start at $300. Since I think a fly by wire car controller is a lever, knob, microswitches, I'll start with that. I got a E46 DCT shifter off eBay for $40. Add $10 key/joystick USB controller, I should be there. Can anyone point me at a PDF for the E46 M3 DCT shifter pin outs? Bill I shall continue to lurk on this thread in the meantime. PS: The connecting a switch to iRacing via USB easy. The $10 switch/joystick USB board is 100% plug/play straight into Windows. From there into any sim. Maybe I'll DIY a swanky button box instead. |
Originally Posted by billybobster
(Post 1580644)
My "brilliant" idea to use a E46 M3 DCT shifter to provide a sequential shifter for iRacing? I'll give it a "nice try but no" rating. I opened up the shifter and no microswitches. There's a magnet at the end of the shift lever and what I'm guessing are some magnetic sensor surface mount ICs on a circuit board below. Some BMW digital contactless something. Could a hardcore tech wonk hack a solution? Probably, but not me. I'll put the shifter in a box and save it for when I do the "real" DCT box swap on my Miata (at least a year away after I do some other mods).
I shall continue to lurk on this thread in the meantime. PS: The connecting a switch to iRacing via USB easy. The $10 switch/joystick USB board is 100% plug/play straight into Windows. From there into any sim. Maybe I'll DIY a swanky button box instead. E46 M3 uses an SMG, not a DCT. It's just a 420G gearbox with actuators and solenoids and a slightly different bellhousing. They are universally loathed for jerky shifting and common failures in the BMW community |
The wiring diagram can be found here, but it doesn't seem like it would help much.
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Firstly I just want to say that this is absolutely brilliant, OP you are one big balled mofo. I'm an engineering student in California with a bit of a Miata addiction, or so my friends tell me.
So far I've gleaned that you're running some sort of custom controller bypassing the stock bmw tcu. I'm curious if it would be possible to make a very bare bones controller with only manual control, no throttle blipping maybe two preset torque settings for a daily vs performance mode. Anyway, if anyone on here has a pinout or wiring schematic for any generation of bmw dsg that would be greatly appreciated! |
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