2.7i Stroker swap

[ColbsE30]

So I'm swapping in this beautiful 2.7i seta stroker into my 1987 325e.
I have all the parts for the swap so far, but from a little research I've done I'll need a new fuel rail and o2 sensor? If so does anyone know off of what e30?

[meengreene30]

You'll need a fuel rail from an "i" car and a 3.0 bar regulator also from an i car. Not sure on o2.

[Regnar75]

im using my stock E o2 sensor, just wire it up. if you go with motronic 1.1 im not sure on the o2 sensor but if you buy a new I sensor to go with the motronic 1.3 and I exhaust there will be no issue, but if your using the E exhaust you will have to extend the wires to reach the E o2 sensor bung by the transmission.

[MR 325]

You don't need a new fuel rail. You do need the i injectors, FPR, AFM, TPS, intake manifold, throttle body, intake boot, crank sensor, crank wheel, water pump pulley, engine harness and ECU. Order the o2 sensor to match your harness. The Eta uses a 3 wire but i cars use a 4 wire. The 87i uses a different style plug than the 88+ cars.