My E30 325i. Slowly getting on it's wheels

[Larsinnj]

Letting the pics speak for themselves. Engine is mounted, and in the car. I'm running with "only" 2,8 liters for now. Goes as hell! :D My buddy have a E28 M535i, and he recons I can beat him. I have driven it for about 1000 kilometers now, and now a strange sound comes from it.
Sounds like it's coming from the front of the engine, and it's a high frequent metallic scrape. I comes when I start it, but when I rev it a bit and drive, say 200 yards, it's gone. And doesn't come back until I'm idling for a while. Wondering what the hell can make tat noise.
I've taken some of it apart, but I'm non the wiser. Checked the rotor, water pump, generator, campulley and belt, but all of those are fine. Thought it was air in the coolingsystem that causes the waterpump to cavitate, but took the fanbelt of and started, so the generator and waterpump didn'n move, but the sound was still there.

I'm gone on work now, so I can't check on it untill wednesday, and it drives me mad!!








Tried a friends foam canon.. Cool as hell! ;D


By the way. If someone have a totaled E30 M3. PM me! :D Doesn't matter if the fron is smashed, as long as the rear end is intact.

[Larsinnj]

Test fit it now. Then give it a thorough clean, and final assembly with new bearings etc later. If they fit that is..





:D:D

[Larsinnj]

I have delivered the pistons to a man that will shave the skirts from them. From my measurements I find out that I'll have to shave off 14 (!) mm of the bottom.

Also I have found out that my comp ratio will be 10,8:1, which I think is awfully high, so I will buy a head gasket that is 0,3mm thicker. Then I will get 10,3:1.

[Larsinnj]

I have assembled it now, and with 320i engine rods and the m51 crank, the m20b25 kat pistons is exactly the same at the top as it is was original, but the skirts on the pistons hits the crank when the piston is nearly at the bottom.

[Larsinnj]

Bad choice of spoiler, I agree. But to make up for that it had 2,7l twin turbo.. :D

Now I have stripped down the engine block, and it's is as good as new! (I think :mrgreen: ) I can still see the marks from the honing.

Now I am off to the garage to mount the crank shaft I picked up yesterday. Drove for 5 hours one way just to get it!
I will test fit it with old bearings to see how much I will have to take off the block, if I have to at all. Then order new bearings, sealing and gaskets after I have measured the surfaces on the crank.

I have also ordered a new clutch that can handle 258 hp and 242 ft/lbs. Think that will be enough for me! :)

[whysimon]

what the hell is going on with that blue e30 in the background? Fantastic choice on spoiler.

[Larsinnj]

The crank shaft hub and adjustable cam shaft pulley arrived today! :)

[Larsinnj]

Ordered crank shaft hub for mounting m51 crank in m20 and adjustable cam pulley today. :)
Things are coming in slowly. ;)

[Larsinnj]

That is possible. My English isn't that good. ;)
I mean the part connecting the crank and the pistons. :)

[E30FourLife]

You mean engine rods not tie rods right?

[Larsinnj]

Went bananas on the internet today and ordered crankshaft from M51D25 and tie rods from M20B20. With that, the engine displacement goes from 2,5l to 2,8l. :)

Nice! :D

[Larsinnj]

Just a little list of things I have for my build.

Camshaft
Fuel injectors
AFM
M30 throttlehouse. I will try to make the house from the M20 bigger so I can fit the throttle plate from the M30.

The head will be fixed as soon as possible in 2010. :)

[Larsinnj]

Performance camshaft is on it's way in the mail from Pure Performance Factory in Sweden as we speak, and next month I will probably give the head to a company not far from where I live to get it level, pressuretested and to port the in/outlet channels.

Then I probably can start mounting it, because I have the fuel injectors and AFM lying around. I will probably need an adjustable cam pulley to make everything perfect with the new camshaft.
And I have learned that the Hartge H35 chip wont work since it's made for M30 engines, so I haven't found out what I can use yet, but that comes soon enough. I'm not stressing to get the car on the road before the summer anyway.
I will also order a powerfilter that fits inside the original filterhouse.

Btw the cam is a Z45 with 280 degrees, 11mm max opening and a 108 degrees peak angle.

Think it will be goood!! :D

[Larsinnj]

Just add some more pics.
I also have mounted new rubber for the exhaust, so it doesn't hang som much anymore. :)

[Larsinnj]

Well.. I have always thought it was something strange going on with the engine. Overheats and stuff, so I took the head off again and guess what? It's crooked (?). I have measured it, and i also can se a quite big strip of soot on the head itself, running out in the coolant-channel near cylinder 2.
So then I'll make it a bit better while I'm at it.

-The exhaust i already have. Made by Sebring with extractor and 2x2,5 inch pipes.
-I will port the head a bit.
-Hartge H35 chip
-New perfomance camshaft
-AFM from a M30B32, with the electronics from a M20 AFM.
-Fuel nozzles from the same M30
-Adjustable fuel pressure regulator.

Think that was all.
So as you can see, the car isn't coming on the road this winter, but will be back strong for the summer! :)

I will also buy a new set of springs and shock absorbers for it. The ones that is mounted now is old and now very good, so I'll but new ones that lowers the car 60-40. Get more down to earth aswell! :)