throttle body question

[jkl]

I got 1986 325es
Old throttle body is bad,but I got an extra one it is of 1988 325i
is it gonna work on my car ?


I'm new guy and rebuild my first car...
thanks

[SpecM]

Not sure if an "i" TB will fit an "e" manifold, but the "i" TB and manifold will fit an "e" head

if that helps any...

[Liam]

The "i" is a larger bore, different heater and breather tube configuration and the studs may not fit either (not sure on the stud pattern).

[kenika65]

You will have to run 1.3 Motronic to change to an i TB and intake.

[triry]

not quite,...........

You will have to run 1.3 Motronic to change to an i TB and intake.

the eta was designed as a low rpm, torque happy motor, hence the small tb. a "i" tb WILL fit once the tb opening in the manifold is opened up to a diameter that allows the "i" throttle blade to open.

its genuinely unlikely youll see any real performance improvement unless corresponding changes are made on the exhaust side of the motor,..............