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K or BP Engine to BMW E36/E46 Transmission Upgrade

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Old Apr 18, 2017 | 09:32 AM
  #41  
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Originally Posted by Onyxyth
This looks awesome. How does this effect downpipe clearance? 3" downpipes are already tight with the little NA 5 speed. I'd like to see one installed with a downpipe for reference. Very cool though.
+1
Old Apr 18, 2017 | 10:03 AM
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Originally Posted by psyber_0ptix
Sorry for the shameless plug, but this is super exciting, and it makes me miss my old e30. I had used the MZ3 shifter, it's taller but the pivot arm is a bit longer reducing throw. This is making me nostalgic for my s50 e30 days where I fashioned a plate with the UUC ERK:
Yes, same idea. I actually have a Z4 3.0 shifter on my desk and I'm about to put it in the car. I think it's going to feel better than the M5 shifter in there right now.

Originally Posted by Chiburbian
GPS based speed adapter?

On one hand, that's incredibly cool and means that you should theoretically have more accurate speedometer readouts, but I do kinda worry about not having a direct mechanical or electrical input from the transmission. What happens when you go through tunnels? (about .00001 of my driving time). How fast does it respond to changes in speed? Much slower than a direct wired connection I am sure.

I hope they can find a way to give options on that.
We had the same thoughts. Dead nuts accurate and super simple to install. Plus you can change ratios, wheel size, or anything at all and it will be accurate. It's a really common thing in the hot rod community. The trade-off is possibly losing GPS signal. The module we're using has really good reviews. I should have it this week and we'll install and test drive. It seems like the gauge action is like stock. The other option is adding an ABS wheel speed sensor and developing a processor to send that signal to the ECU and cluster. We can do it, but the GPS setup will be cheaper and simpler, and won't require people to hunt for spare ABS knuckles, sensors, and rings.

Originally Posted by Onyxyth
This looks awesome. How does this effect downpipe clearance? 3" downpipes are already tight with the little NA 5 speed. I'd like to see one installed with a downpipe for reference. Very cool though.
Stock Miata exhaust fit comfortably back on the car without issue, with both 5 and 6 speeds. There is actually quite a bit of clearance, and it definitely will fit a 3" K series exhaust. If anyone wants to ship me parts to test fit on this car and return, I'm happy to do so.
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Old Apr 18, 2017 | 10:06 AM
  #43  
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Is there any low hanging fruit on downpipe clearance. Like tabs that can be cut off the trans or anything?
Old Apr 18, 2017 | 10:09 AM
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Originally Posted by aidandj
Is there any low hanging fruit on downpipe clearance. Like tabs that can be cut off the trans or anything?
Nothing worth cutting off the trans. I can get under the car and take some pictures with the stock header and exhaust though. I don't envision it being a big issue, the trans is really not that large. The only place clearance gets tight is on top of the tunnel.
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Old Apr 18, 2017 | 10:15 AM
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Originally Posted by KMiata
Stock Miata exhaust fit comfortably back on the car without issue, with both 5 and 6 speeds. There is actually quite a bit of clearance, and it definitely will fit a 3" K series exhaust. If anyone wants to ship me parts to test fit on this car and return, I'm happy to do so.
​​​​​​​I will shoot you an email.
Old Apr 18, 2017 | 10:18 AM
  #46  
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Originally Posted by KMiata
Nothing worth cutting off the trans. I can get under the car and take some pictures with the stock header and exhaust though. I don't envision it being a big issue, the trans is really not that large. The only place clearance gets tight is on top of the tunnel.
Cool, thanks.

Do you expect to offer individual components of the kit? Or all in one package. I assume it will be like the k swap, where you can buy individual components. If so, awesome
Old Apr 18, 2017 | 10:42 AM
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Originally Posted by aidandj
Cool, thanks.

Do you expect to offer individual components of the kit? Or all in one package. I assume it will be like the k swap, where you can buy individual components. If so, awesome
Yeah, we'll make separate parts available, shouldn't be an issue.
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Old Apr 18, 2017 | 10:43 AM
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Awesome. Looking forward to seeing it run.
Old Apr 18, 2017 | 10:47 AM
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Originally Posted by aidandj
Awesome. Looking forward to seeing it run.
We'll take some video. It's just not that exciting with the stock engine. But I've been doing non-stop burnouts and donuts with it so far. Oh, and commuting like a normal person too. I'm getting a couple track days on the calendar right now too.
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Old Apr 18, 2017 | 10:49 AM
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Will you have one at MRLS?
Old Apr 18, 2017 | 10:56 AM
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Originally Posted by aidandj
Will you have one at MRLS?
Yup, probably 2 or 3 of them actually. Come on by and we'll take you for a ride. If all goes according to plan, the white turbo car will be there to make cool noises.
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Old Apr 18, 2017 | 10:56 AM
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Originally Posted by KMiata
Yes, same idea. I actually have a Z4 3.0 shifter on my desk and I'm about to put it in the car. I think it's going to feel better than the M5 shifter in there right now.



We had the same thoughts. Dead nuts accurate and super simple to install. Plus you can change ratios, wheel size, or anything at all and it will be accurate. It's a really common thing in the hot rod community. The trade-off is possibly losing GPS signal. The module we're using has really good reviews. I should have it this week and we'll install and test drive. It seems like the gauge action is like stock. The other option is adding an ABS wheel speed sensor and developing a processor to send that signal to the ECU and cluster. We can do it, but the GPS setup will be cheaper and simpler, and won't require people to hunt for spare ABS knuckles, sensors, and rings.



Stock Miata exhaust fit comfortably back on the car without issue, with both 5 and 6 speeds. There is actually quite a bit of clearance, and it definitely will fit a 3" K series exhaust. If anyone wants to ship me parts to test fit on this car and return, I'm happy to do so.
I'm only a few miles away David. I have a custom 3" exhaust based on a BEGI manifold and FM downpipe elbow. If it's something that won't take long I'd be happy to bring my car over and let you swap over and back. We can do it over the course of a day together or I can leave you the car for a week or so.
Old Apr 18, 2017 | 10:58 AM
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Originally Posted by KMiata
Yup, probably 2 or 3 of them actually. Come on by and we'll take you for a ride. If all goes according to plan, the white turbo car will be there to make cool noises.
Sweet. I'll stop by for sure. Can you have a kit ready for me to take home?

Or install in the parking lot friday night
Old Apr 18, 2017 | 11:04 AM
  #54  
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Originally Posted by codrus
That's very cool and definitely something to think about.

Out of idle curiosity (I like a real manual, and even if I didn't I hear they're not not all that reliable), does the E46 SMG fit?

--Ian
Yes it should. They are physically on the outside the same case. It's just the SMG pump and a few other things internally. If you do a little bit of searching, there are even instructions on how to convert the SMG transmission to a regular manual with some mods.
Old Apr 18, 2017 | 11:08 AM
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A customer of mine on a high power 1.6L (530hp/390tq) had the FD gearbox and installed an M3 E46 gearbox - 3" DP and exhaust, no clearances issues. Custom fabrication (not a Kmiata kit or anything) but it goes on to show that there should be no clearances issues with a 3" exhaust.
Old Apr 18, 2017 | 11:56 AM
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Originally Posted by KMiata
Yes, same idea. I actually have a Z4 3.0 shifter on my desk and I'm about to put it in the car. I think it's going to feel better than the M5 shifter in there right now.



We had the same thoughts. Dead nuts accurate and super simple to install. Plus you can change ratios, wheel size, or anything at all and it will be accurate. It's a really common thing in the hot rod community. The trade-off is possibly losing GPS signal. The module we're using has really good reviews. I should have it this week and we'll install and test drive. It seems like the gauge action is like stock. The other option is adding an ABS wheel speed sensor and developing a processor to send that signal to the ECU and cluster. We can do it, but the GPS setup will be cheaper and simpler, and won't require people to hunt for spare ABS knuckles, sensors, and rings.



Stock Miata exhaust fit comfortably back on the car without issue, with both 5 and 6 speeds. There is actually quite a bit of clearance, and it definitely will fit a 3" K series exhaust. If anyone wants to ship me parts to test fit on this car and return, I'm happy to do so.
You could use the xenocron wheel speed sensor.
Old Apr 18, 2017 | 02:03 PM
  #57  
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Let's talk at #gridlife about the e30 behind the BP option for my new to me endurance NB.
Old Apr 18, 2017 | 02:36 PM
  #58  
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I am in talk with KMiata now to possibly get some setups out to him in various forms for some test fitting. Hoping to get MKTurbo, TSE, and a Begi/FM setup.
Old Apr 18, 2017 | 02:55 PM
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Yes, Lars and I will see what we can come up with for some test fitting.

Good idea on the Xenocron speedo setup, I'll check it out.

Allen, sure we can talk anytime for parts for your NB, just let me know.
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Old Apr 18, 2017 | 03:26 PM
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Swapped in the Z4 shifter and I'm quite pleased. Size, shape, and throw is similar to stock. When you shift it, you can tell there is something a lot more stout down there.



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