how to boost the power on a 2.7 eta engine?

like the title says, what can i do to boost the power?

I know a chip would help, but what mechanical things can i do? Iv heard that swapping an "i" head is good, but then i also heard that that is only for the 1988 year. finding coherent information on the internet is hard(unlike for my camaro).

Originally Posted by Haaken

like the title says, what can i do to boost the power?

I know a chip would help, but what mechanical things can i do? Iv heard that swapping an "i" head is good, but then i also heard that that is only for the 1988 year. finding coherent information on the internet is hard(unlike for my camaro).

DOHC swap.


/thread

323i head, intake manifold and throttle body swap

ok, i sspent a couple hours last night researching and so far this is what i know.

If i add a 325i head, cam pistons,intake manifold, and ecu, ill end up with a stroked "i" motor.

Now the 323i swap,, im not to sure about now, what kind of power would that make?

325i head would be quite alot more expensive than a 323i swap. I hav eno experience with the 325i head swap, but ive heard it is quite difficult to get done right. the 323i head swap however, is simply a matter of bolting the 323i head(731) casting to the eta bottom end, then accompanying that with a 323i intake manifold throttle body and an m30 AFM(with m20 internals), and running it all with a 325i DME. quite sure it is close to the 200hp mark

Originally Posted by AdamAnt

325i head would be quite alot more expensive than a 323i swap. I hav eno experience with the 325i head swap, but ive heard it is quite difficult to get done right. the 323i head swap however, is simply a matter of bolting the 323i head(731) casting to the eta bottom end, then accompanying that with a 323i intake manifold throttle body and an m30 AFM(with m20 internals), and running it all with a 325i DME. quite sure it is close to the 200hp mark

i would love more info on this 323i head swap if you have it. I dont really know much about that one at all. Also, the 323i was never sent to the U.S. was it?

what would u like to know? im not sure about the availability in the us, they grow on trees here in Aussie land .

i hear the i head is pretty much a direct bolt on. There was an alpina 2.7i stroker chip on ebay. grab it if you plan on getting the head. there are a couple write ups on supereta