does anyone now how much hp a91 crx si head will add to a91 std hatch?

what about the swap from dpfi to mpfi how much hp will tah add also?

 

ttt

 

mpfi swaps add a significant amount of hp for what it costs...
I have never seen any one thats not happy afterwards.

 

yeah mpfi swap is a good way to go. i just did mine a few weeks ago. i wasnt all that impressed at first but as ive gotten things running better and driven it more im really happy with it.

its basically turning your d15b1 or b2 into a d15b7 which makes 102hp, on the si ecu you might be making a little more than that

just the si head isnt going to give you much. the only difference is in the cam

 

also does the tranny from the si help?

 

the Si tranny is the best geared (in its stock form) D series tranny, so yes it will help if you switch to it.

 

ok thanx