325e turbo / fun project

[BUDNUNTA]

Do Work
SON

[Cyrix2k]

third times the charm

http://www.youtube.com/watch?v=fIUDmhdwmmY&list=UUx3pAqvcY1sB4Cq1rqKl9dA&index=1&feature=plcp

[Cyrix2k]

I pulled the head today on the TU (bad motor). I don't get it - everything looks great. Cylinder #5 has surface rust where the piston doesn't ride so that's probably the one that had the valves open in storage, but that cylinder has good compression. There's no scoring from what I can see and the cross hatching is good. The worst looking cylinders are the *good* cylinders. WTF?

[Butler]

Cool thread. Keep us updated.

[Cyrix2k]

I'm overdo for an update :-/ The car died while on a 20 mile test run. Somehow it made it my driveway where we needed to tow the last few hundred feet to the garage, lol. I initially thought the problem was the fuel pump - NOPE. Turns out one of the coil drives died, but the problems didn't end there. The car would run, but like crap and with a LOT of blowby. I purchased a compression tester and the results were not good :(

Warm engine numbers:

Cyl-Dry - Wet
1 - 105 -150
2 - 215 - 240
3 - 185 - 210
4 - 120 - 165
5 - 210 - 235
6 - 115 - 150

I guess that explains the MASSIVE amounts of blowby :( And it's just been getting worse.

So I picked up this:




It's a wrecked 1992 325is 5 speed. Looks like I'm going M50NV! Stay tuned.

[Cyrix2k]

from that picture it looks like it goes into the water pump haha!

half the mess is the megasquirt and wiring/ spark control. What is the thing on the exhaust side of the intake manifold? it looks like the ICV or something

it is an ICV, capped off and unhooked but not removed lol. I'm going to try and make this new setup clean for once. In my video I'm still using those old GM coils, but I'll be moving to the BMW coils & using the factory harness which should help a lot.

[downforce22]

from that picture it looks like it goes into the water pump haha!

half the mess is the megasquirt and wiring/ spark control. What is the thing on the exhaust side of the intake manifold? it looks like the ICV or something

[Cyrix2k]

very nice, would have liked to see the m20 setup though

here you go. It was NOT clean but it ran.



Intercooled, notice the change in the charge piping.

[downforce22]

very nice, would have liked to see the m20 setup though

[RawToast]

[Cyrix2k]

Video of it firing up on the stock injectors :) I was an idiot and capped the valve cover off... BIG mistake. I have oil everywhere on the floor, lol. And the smoke is from starting fluid to test for spark before giving it fuel. The ICV is deleted so it wouldn't hold an idle by itself in this video. I adjusted the accelerator cable to hold the TB cracked open and it idles now.

http://youtu.be/VmNOwCdqop4

Cool project, looks like almost the same airesearch I used on my eta, only internally wastegated

That turbo actually worked pretty well. It was enough to waste the stock clutch and lift the head on the m20.

[ANDRÜ]

Cool project, looks like almost the same airesearch I used on my eta, only internally wastegated

[Cyrix2k]

So I went to test fit my ebay wastegate and it doesn't f***ing fit. The inside diameter of the flange is correct, but the outside diameter is about 4mm smaller than the tial flange. I went searching for solutions and came up with the following options:

1. Buy the correct vibrant or tial inlet flange, grind it out to fit around my wastegate's outlet, and weld it on. I'll also need to buy a clamp. $60 for parts plus stainless wire & gas.
2. Buy a TiAL 44mm MV-R that comes with everything. Cost $365

Since the valve seat doesn't fit properly on my ebay wg and at the end of the day it is still an ebay wastegate, I just bought an MV-R.

I'll post another update tomorrow. The engine is still out, but the manifold is on (hope it clears the engine bay!), I started fabbing my 3" downpipe, I welded the 3" vband to the turbo, the e34 accelerator cable made it on, I welded the oil pump nut to the sprocket, and the oil pan is back on. I'll call that progress.

[Cyrix2k]

What are those switches on the kick panel in the first post interior pic?

Car looks good. turbo m50 sounds fun. I get a kick out of m50's as is.

They used to control neons back when the PO had it riced out I used the first two for low & high speed fan override since I deleted the mechanical fan.

[mbonanni]

What are those switches on the kick panel in the first post interior pic?

Car looks good. turbo m50 sounds fun. I get a kick out of m50's as is.