Just bought an M30b25 motor...did I get a good deal?

[Poopie]

http://cgi.ebay.com/ebaymotors/BMW-e30-M20-Engine-Motor-Cylinder-Head-325i-325is-325ic_W0QQitemZ150352156315QQcmdZViewItemQQptZMoto rs_Car_Truck_Parts_Accessories?hash=item2301afd69b &_trksid=p4506.c0.m245&_trkparms=65%3A12|39%3A1|72 %3A1171|240%3A1318

not bad for 90 bucks. What do I do with it? I'm picking up a 325e this week. Should I swap heads and shave pistons for a 327i? Should I freshen up the b25 motor and just swap it in? I'm pretty new to the game, but not new to modding cars. I'm leaning towards just swapping in the I motor and calling it a day. Do you guys see anything else I would need besides and ECU for a swap? I just could not bear revving the b27 to only 4750 rpm :(. Something with the motor had to be done.

[Poopie]

WHOOOOPS!

can a mod edit the title. I mean m20b25

[SmokeE30]

assumeing the wireing harness is complete and the motor is too the ecu should be the only other thing you need to swap in the i motor, i would say that would be the simplest and cheapest route as opposed to building a 2.7i, really unless your planning on boosting theres not much advantage to swaping in a 2.7 crank into an i motor. and nice to see a local on here, if you need any help just ask.

[Poopie]

Thanks man. As far at they know the harness is complete. Will a 325e oil pan swap over?

Hopefully I can find a chipped ecu.

[BTP325ic]

Thanks man. As far at they know the harness is complete. Will a 325e oil pan swap over?

Hopefully I can find a chipped ecu.

if would probably be easier for you to find the ecu separately from the chip.

and go mark d if you get one.:D

[Poopie]

I just bought a mark d chip too for the 325e motor =(. I'm sure someone on the board will want it. Should I go with a 93oct chip for 19# injectors?

Yeah, ecus seem pretty available.

[RoDo]

WHOOOOPS!

can a mod edit the title. I mean m20b25

You can edit the title yourself by clicking the advanced link in the edit screen.

[ikkitousen]

Since I just did this exact thing Here are some of the pit falls I ran into:
86 eta swapped out with a 90 I motor
Needed an updated wiring harnes for that 90 motor
bought a 173 ECU for upgradability
eta motor didnt have an Oil cooler so I had to buy one of those
Changed out all the intermediate maintenance items on the I motor, new cap, rotor, needed I motor wires cuz of that little sensor wire, new timing belt and water pump.
Needed a mish mash of hoses cuz the early modle eta cooling system is diff from the late model I cooling system. The Water pump is actually the eta version with a couple of i hoses mixed in.
I should have done a lot more to the tranny side of things but since the clutch had just been replaced before I bought the car I left it as is. The flywheel and clutch are out of the eta as well.
I motor throttle bodies and I afm and air box
New I motor starter, alternator (this was due to ground wire issues, too long of a story to get into here) and disconnected the power steering pump and AC.

Things I still need:
Two error codes I need to fix are the speed sensor, and the tach not working which I dont understand. The Tach SHOULD be working but its not.
Need a late model motometer cluster with the higher rev counter and a new switch/plug for my cluster but I have yet to pull it apart to find out which one it takes. :(
Even passed smog like a champ with the check engine light on... Go figure.

For what its worth here are some shitty pics after I got it all said and done.









Sooooo much left to dooooo.... gotta get rid of that dammed ricer tail soon!

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DAMN SOOOO MUCH WORK!!!

[Poopie]

looks good man. i thought it was supposed to be a prety straight forward swap. DOH! can i still retain AC and power steering?

[vr2jetta]

I think you got a hell of a deal!! I paid $200 just for an 'i' head and had to drive 7 hours to pick it up. That thing comes with all the accessories, wire harness, looks to have most the cooling hoses. Good buy!

[Poopie]

haha yeah. Thank god i took that nap and didn't bid or else i would have paid 400 for the thing. I saw it the morning after and I could not believe me eyes

[ikkitousen]

looks good man. i thought it was supposed to be a prety straight forward swap. DOH! can i still retain AC and power steering?

Yeha shouldnt be a problem, I didnt hook mine up simply becuase I wanted to see what the car would be like w/o them and it drives fine. I'll be yanking them out of the bay when I get some more free time.

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DAMN PROJECTS!!!