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This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-03-2017, 08:27 PM   #21
bobnagga
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Join Date: Aug 2016
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Well, my subframe is cracked. Not bad, but a definite hairline crack behind the rear driver's bush and a popped weld. There's another spot I'm not sure about and a spot where a bunch of seams come together that I'm not for sure on, either. If anyone has any input on these seams, I'd sure appreciate it.

It's not bad, but still a good thing I bought the reinforcement kit. I'll have to document THAT repair as well, but I think it's a job for spring. I'm not too worried about my car self destructing in the next couple months.

Only eight bolts holding the engine and tranny in, so it was a good stopping point. I decided to loosen the bottom three tranny bolts BEFORE we took it out so it would be easier to get them once it was on the floor. Guess what, though. I rounded off that same bolt that I did on the 330! This use of star pattern and torx head screws on things with any amount of torque on them is a real issue. I'm not as angry about it as I was the first time, but, man. I hope they wised up and stopped in the later generations. These things are crap.
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Old 01-09-2017, 10:14 PM   #22
bobnagga
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Well, Engine's out. I'm waiting on a couple parts to show up, though. DISA kit, o-rings, that sort of thing...

Man, it was really oily and gross under there. Like, I mean fresh-oily. That car must have had a major leak in the recent past. You know the hard, dirty stuff that scrapes off of most engines? No, this stuff is gooey. But whatever, It's not an issue any longer. I'm going to use allen head screws to bolt up the transmission once I get that rounded star garbage out of there. It'll look nice, and I already have the allen socket set.

Going to spend most of the day tomorrow cleaning up the CCV system on the M54 for a catch can retrofit, get the clutch on, the M52TU valve cover and fuel rail... That sort of thing.
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Old 01-23-2017, 11:12 PM   #23
bobnagga
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M54b30 is in my car. W00t! Anyway, sorry about not updating last week. We got the valve cover done. Took the one off the M52TU. It's a direct fit if you're wondering. Got the new flywheel and clutch on. Looks nice if I do say so myself. We decided to wait on the intake stuff, though.

But we got started on that today. I'll post some pics of that tomorrow. The Throttle body adapter plate fit nicely with no cutting or filing required. I was even able to use the M54 intake tube on the narrower M52TU throttle body. It was only slightly loose and clamped down quite nicely. I'll have to find something different for the brake booster line, though. It's routed right along where my throttle cable goes. We also had to stretch the Idle control tube a bit to make up for that extra 1/2 inch from the adapter.

Anyway, here are some pics!
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Old 03-20-2017, 10:25 PM   #24
BMW_Racing
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Any updates on the swap? Do you have the electronics hooked up? I was wondering why you didn't take the M54b30 ecu with the swap and just run the 6 pins from the drive by wire gas pedal into the MS43 ecu?

I am working on the exact same swap right now except I am using the M54b25 motor. We took all the electronics from the M54b25 and grabbed the electronic gas pedal.

Interested to hear your thoughts?
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Old 03-21-2017, 12:05 AM   #25
bobnagga
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Oh, man, sorry. Yeah, haven't been posting on here because it's real slow going.

I was waiting to get done and just do one last big post, but I suppose it's time for an update.

Tranny has to come back out. Got everything bolted in, driveline, exhaust with catless headers, everything. We were getting ready to put the intake on, but I knew there was an issue with the clutch, so I decided to pursue that first. It only moves an inch or two, then just stops dead. I don't know what the issue is, but I bought a new release lever, spring and pin. Hopefully that clears it up. I may have bought a new slave cylinder as well, but I'm not sure... got a trunk full of parts at the moment.

Also got a complete cooling system refresh. Water pump, cooling lines, thermostat, temp sensor, expansion tank. Also a new radiator fan since my old one wasn't working. (Wife blew out the thermostat line and took out the radiator back when the old engine was in... I think it got overheated as well and maybe warped the head. Lots of milky water build up under the valve cover when I took it off.)

So, anyway, we spent a couple hours trying to figure out the clutch issue, and the only conclusion is that the Tranny has to come back out so we can put eyeballs on it and see what's wrong. As soon as we decided that, I decided to take a couple weeks off and here we are.

Now, as far as the six wires from the ms43 dme/harness goes, I just wanted a real gas pedal. (Yes I know that the m52tu throttle body is TECHNICALLY a drive by wire system, but I never once experienced the lag I always here the other newer car owners on here talking about.) I don't want a shark injector to make the valve open faster, I don't want any different kind of throttle response. It's just absolutely perfect the way it is.

So it just breaks down to personal preference, really.
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Old 03-21-2017, 12:40 AM   #26
BaliDawg
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Quote:
Originally Posted by bobnagga View Post
Oh, man, sorry. Yeah, haven't been posting on here because it's real slow going...
Bobnagga na work here anymore anyway..

__________________
///Mmmmmm...
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Old 03-21-2017, 01:26 PM   #27
BMW_Racing
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Originally Posted by bobnagga View Post
Oh, man, sorry. Yeah, haven't been posting on here because it's real slow going.


Now, as far as the six wires from the ms43 dme/harness goes, I just wanted a real gas pedal. (Yes I know that the m52tu throttle body is TECHNICALLY a drive by wire system, but I never once experienced the lag I always here the other newer car owners on here talking about.) I don't want a shark injector to make the valve open faster, I don't want any different kind of throttle response. It's just absolutely perfect the way it is.

So it just breaks down to personal preference, really.
Yeah, I totally get that. We went the other way as the MS43 ecu has a lot more options for us in terms of turning things on and off. We can always crank the 'gain' up on the electronic pedal. Either way will work. For us, we wanted the increased volume through the M54b25 intake. We will be running e36 headers and a free flow exhaust which will be able to take advantage of the increased flow in the M54b25 intake.
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Old 03-21-2017, 11:45 PM   #28
bobnagga
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Originally Posted by BMW_Racing View Post
For us, we wanted the increased volume through the M54b25 intake. We will be running e36 headers and a free flow exhaust which will be able to take advantage of the increased flow in the M54b25 intake.
Oh, I'm using the m54 intake. They make an adapter plate for my TB. There's a link in one of the older posts in this thread to a debate on the m52tu TB vs m54 TB. I think it's the DBW throttle retrofit thread if you care to do some light reading...

The short version is that there's a school of thought around here that says the m54 TB is 3" to help minimize that lag, but actually doesn't make any difference in flow rates compared to the direct-connected 2.5" m52 TB.

But, that's neither here nor there since both choices seem to take the same amount of work!
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Old 03-21-2017, 11:48 PM   #29
bobnagga
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Bobnagga na work here anymore anyway..

Dude, that's exactly what I said right after, "This transmission has to come out again..."
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