E30 Turbo Project, Budget done right(Ha.Haha)Twincharged Next

[kistler#7]

Finally picked up an m50, I was about to go s52 but found an m50 block with low compression wisecos for $300. Picked up an m52 crank and some 130mm h-beam rods to get a 2.9l, kind of m20 style. Im scrapping the twincharged idea for now and going with a holset he351ve with a 67mm billet compressor wheel. The plan is to control it with ms3x but if I can't figure out the CAN bus communication I have a design for a mechanical actuator.

Also using a non-vanos head for the single piece valves and dual valve springs. I'll convert it to vanos at some point.

Some pics of the pistons and rods




Cutting the o-rings




I'm excited to experiment with the vgt turbo, the recent Megasquirt development should make it possible to control the actuator and I have hopes the vanes will last with e85 and meth to cool the egt's

[marek|steezkal]

Updates?

[kistler#7]

The only thing I don't like about this thread, is that there are no videos.

I'll try and fix that I've definitely been lazy in the media department.
Little update, I should be picking up an m50tu from an e34 on wednesday. The plan is a 3 liter stroker, and of course turbo, not sure about the eaton
My hopeful parts list:
M54 crank and pistons
Eagle rods/arps bolts. 135mm
Schrick 256/264 cams
11mm arp headstuds
arp mains
blunttech mani
66-76mm garrett or precision snail.

[RondoAcapriccio]

The only thing I don't like about this thread, is that there are no videos.

[e3irsty]

This is awesome man can't wait to see future plans with this or whatever else you get!

[kistler#7]

So the head is .005" out in the middle and the first machine shop I went to doesn't want to surface the head, even though it would still be well within the Bentley's spec. I am tentatively looking for a new head just so I'm not on the edge of the spec, but either way I have my sights set on a forged 24v motor in the future

[kistler#7]

Doing a headgasket and test fitting the m62. Its gonna be tight

[kistler#7]

very nice!
i need to finish my turbo setup aswell.
my car looks like yours except my car is a coupe. my paint is chipping like yours showing the original bronzit color in some places.
where did you get the 42lb injectors?

Well I've started to max the 42 lbers out at 21 psi, so they up for sale. Ev14 1000cc's in the mail and e85 on the way. PM me if interested

[kistler#7]

That copper wire hider complements well with that polished valve cover. Nice work good luck on the twincharger

The stock plastic holder wouldn't fit between the valve cover and turbo and I didn't really want hacked plastic.

[E30NJ]

That copper wire hider complements well with that polished valve cover. Nice work good luck on the twincharger

[kistler#7]

Some pictures of the setup

[kistler#7]

Unfortunately it looks like the headgasket is leaking, I've overheated a few times and have oil in the coolant, so that's the next project.

Also I'm a little suspicious of my TCD stage 2 clutch, I bought it used here and its supposed to come with the Sachs 618 pressure plate, but the pedal pressure is really light, maybe lighter than before, just has a quicker engagement. The only markings on the pressure plate when I installed it was SACHS, written with an engraver on the front.

[Matt341]

Looks Good

[kistler#7]

Unfortunately I lost the better pictures of the manifold, but I may be pulling the turbo to check the welds soon. Will grab some

[nomansland92]

Awesome build man, can't wait to see how it turns out