Im putting in a b20vtec using an oBD1 gsr head. if i get a OBD1 gsr wiring harness everything should be plug and play correct. and im using a p28ECU or should i use a p72. will the p28 be able to control the secondary butterflies in the intake manifold?

 

Everything should be plug and play except the alternator if your using the b20 one. As for the p28 i'm not sure if you can add the iab control to it or not, i would get a single plane manifold like skunk2, blox, aebs and such and get it tuned right.

 

yeah im using a gsr alternator. hmmmm...so i could get a p72 and i can use my stock manifold. i dont have loot to buy a different manifold at this time.

 

Yes you could use a p72 to control the iab right, i'm sure it would run ok but you'll still need to get the 2.0 tuned correctly.

 

You may have a little problem with fuel because it being a 1.8 ecu and a little more displacement. I had a problem when a ran a pr30 (b16 ecu) on my poor mans type r gsr bottem end. The same diffrense in litres so good luck.