M20 2.5L performance build

[Reichart12]

What are your power goals? ITBs on a stock motor with standalone ecu have been reported to give a nice bump in power. If you want something into the 200s, that won't do it with just that and your idea to go turbo would make more sense.

The cam, ITBs, ecu, and full exhaust with maintenance parts will probably put you close to $4k if you install and tune yourself.

[E30_corey]

Hi I have a 1987 325is that I’m trying to build some more power with. I want to do this without stroking the motor(yes I know for max power I need to stroke it not doing it with the m20 tho). I have already bought a 272 cam and 18lb injectors. I planned on getting the following parts:

IE long tube headers and full exhaust
Heavy duty valve springs and rockers
itb kit
port and polish head
nuke performance fuel system
Upgraded radiator
New ecu?
miller chip?

I’ve also been thinking about going with a turbo but I must keep the ac it would be low boost. I saw some eBay turbo kits for $800-1800. What do you guys think about that?

please help with any feedback or links to parts /threads