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2.8L M20 9.8:1 stroker build: my 323i reincarnated
2.8L M20 9.8:1 stroker build: my 323i reincarnated
So the story goes.. I crashed my beloved 323i in a sharper than I thought downhill turn that caused unexpected oversteer. It was 1000% my fault with my shit driving ability is the reason I mangled one of the last 323i's to exist in California.
After dumping about $1k into straightening the body it became clear that the 323i wouldn't be completely straight without spending inordinate amounts of money.
So I started searching for an early model shell. I saw an ad on craigslist for a pretty shitty looking 325e, but it was super close so I basically said fuck it.
Owner was a skater dude who wanted to drift it but lost interest after he got an E36.
He offered I take it for $200 so he'd have money to go to the beach with his friends...
So hell yeah I bought it
Edit: I found a crisp $20 bill while cleaning the carpet, so it really was an $180 car.
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Alright, so I'm gonna try and help people who want to do this build by listing the parts required to make it happen. I will update it as I think of stuff.
Main Engine parts:
-Any M20 block
-885 (325i) head. At least a 272 cam.
-84mm Crankshaft from a 2.8 M50/52engine. E36 328i, E39 528i, etc.
-Stock 325i short skirt pistons. These pistons have the domed top and the flat skirts.
-130mm rods. Either from 325e, 320i, 323i etc
-325i intake manifold, throttle body, AFM, airbox, boot, and ICV
Machining:
-This spacer (Just ask a local machine shop)
-My block was decked exactly 0.020" or .508 mm for a CR of exactly 9.81:1 assuming a stock M20B25 is exactly 8.8:1
-Shave off the non-structural looking part of the piston skirt.
-Turn the crankshaft counterweights down pretty much all the way, right before you start hitting the other side of the crankshaft (the part that sticks out next to the connecting rod bearings)
-Get the entire assembly professionally balanced: pistons, rods, crankshaft, flywheel, vibration damper, fan pulley, and pressure plate
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