325IX restore and build continued(turbo, e34ix diff, DCT)

[nomansland92]

well ive been collecting parts for the past few weeks and came up with a game plan for the winter. This is what id like to get done this winter depending on how things go and cost.

winter to do list

***tune/ electronics
new megasquirt
AEM AFR gauge
wasted spark
get iat to work
fix lean start

***Drive line
525ix diff swap
possibility new clutch
new t-case
new rear drive shaft(or find vibration)
3.38 rear diff conversion

***mechanical
re-run brake line
lengthen waste gate dump
add o2 bung
fix all oil leaks
add oil catch can
straight pipe exhaust


***suspension
shorten strut housing
maybe change spring rates
koni race inserts
adjustable top hats
raise power steering rack to correct bump steer if needed
new tie rod ends

***performance
custom intake manifold(could be a summer project)
water/meth injection install
possibility swap from .75A/R exhaust housing to 1.00 A/R housing

here in the next few weeks I'm going to start build a jig to start planning the diff swap. Just from looking at it and getting veg measurements the biggest problem I'm seeing if that the top of the diff case will hit the bottom of the block. Because the m50 is rotated 10* farther on crank center line this causes the driver side of the oil pan mating surface to sit higher. with the m20 it naturally sits lower along that side it may cause interference. simply cutting off the upper mount and moving it elsewhere maybe enough to clear depending how far under the diff sit under the block. Id that's not enough i so far have only though of two solutions, neither i want to do. 1) rotate the transfer case a few degrees to lower the front drive shaft which would lower the diff. or option 2) add a u-joint to the front drive shaft and tilt the diff down or add two u-joints and lower the diff completely, probably not enough room by the transmitting for this.

Ill know more once i get my jig built and get proper measurements.

[nomansland92]

That was my original plan to never launch it, but the whole point of building awd is getting off the line quick, and I'd also like to be making somewhere in the mid 400s at the wheels even if I need a bigger turbo allthough I love having absolutely no lag :)

My plans for the front diff is using e34 parts, diff, axles, custom oil pan and hopefully it can fit without moving the cross member forward or the motor backwards. I'm not going to start the project until winter.

[downforce22]

Thanks man, my timing map is still whodwho 60lb base map, we ran it in on the dyno and verified it was safe but didn't go any further because I was getting spark blow out. So one whodwho finishes my new ms2 with wasted spark I'll go back and turn the boost up and get a good tune. And maybe by then I'll have a bullet proof front driveline too.... is going to be a big winter project and some crazy ideas haha

Looking at your car it looks strange without side skirts. Ultimate sleeper i guess!

Those screamers must be so loud. My screamer is so loud I want to tie it back into the exhaust!

What plans do you have for the driveline? I picked up a space front 3.64 front german ebay a couple years ago in preparation for this... First and second gear is where you run into trouble breaking things, so just don't launch is my plan hah

[nomansland92]

I finally got around to checking this build out again. Great progress!

I see you removed the afm which looks clean and your exhaust is nice! I just got the good n tight turbo manifold and now I have to change my exhaust so it will fit the downpipe to the turbo.

You should post pictures of your spark and timing maps.

Thanks man, my timing map is still whodwho 60lb base map, we ran it in on the dyno and verified it was safe but didn't go any further because I was getting spark blow out. So one whodwho finishes my new ms2 with wasted spark I'll go back and turn the boost up and get a good tune. And maybe by then I'll have a bullet proof front driveline too.... is going to be a big winter project and some crazy ideas haha

[nomansland92]

Me and my buddy went for a little cruise the other night to be that one loud guy going though some tunnels. He has a Trans-am ws6 that is just un godly loud haha. But with twin 1.5in screamer pipes from a little old BMW is pretty fun. I tried to post a video but it didn't work, I'll try later on my laptop.
But here's a few new pics any way

[downforce22]

I finally got around to checking this build out again. Great progress!

I see you removed the afm which looks clean and your exhaust is nice! I just got the good n tight turbo manifold and now I have to change my exhaust so it will fit the downpipe to the turbo.

You should post pictures of your spark and timing maps.

[nomansland92]

It was rebuilt by drivegear but I bought it from guten parts. Even for being rebuilt is still pretty loud at idle but they said everything was replaced

[Bimmer_man]

awesome progress man. car looks awesome. I wanted to ask where you had your transmission rebuilt. Mine needs a rebuild bad.

[nomansland92]

Any other driveline upgrades? (Sorry if I missed them earlier in the thread)


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Just a rebuilt transmission and lengthened front driveshaft spines, so hopefully it holds up

[boogle2]

Any other driveline upgrades? (Sorry if I missed them earlier in the thread)


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[nomansland92]

any video clips on the dyno?

I didn't get a chance to get any dyno videos because I was pretty busy helping tune the car, but once I get the wasted spark done it will be back on the dyno and I'll get some some videos, I plan on making over 400awhp next time

[boogle2]

Sub'd. I'm in need of inspiration for mine. I have the block torn apart and yet to be machined. Still sorting out tiny problems stock before I start the mad turbo process. This is looking great. Keep it up!


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[miggs]

any video clips on the dyno?

[Nisse Järnet]

Nice!

[CorvallisBMW]

Awesome!