Engine upgrade

Post Sun May 29, 2005 6:21 pm

I have a 320i cab and i would like to put a 2.5 in it. Would it be a straight forward engine swap or will i have to change anything ie exhust,wireing etc.

Post Sun May 29, 2005 6:49 pm

mackley wrote:I have a 320i cab and i would like to put a 2.5 in it. Would it be a straight forward engine swap or will i have to change anything ie exhust,wireing etc.

Assuming you get a 2.5 engine from the same year as your 320i, then it will be a pretty straight swap.

It's when you start putting late engines in early cars or visa versa that it can get a bit more involved.

Assuming the 2.5 is a similar vintage, then you should be able to use your existing wiring and ECU. You would really need to fit a 2.5 chip in it though. I'm not 100% on the exhaust. I'm sure it will physically fit, but if the pipe is smaller, then it will limit the power slightly.

Cheers,

Ian.

Post Sun May 29, 2005 7:27 pm

my car is a 1990 but its a pre face lift shape so would i need the engine from a early 325 or the later 325 ?

Post Mon May 30, 2005 2:14 am

I "think" it should be late. I used a cab loom for my late 2.5 conversion from a 1990 and it was the later 3 row ECU type. Pre face lift cars (metal bumper) use a 2 row ECU. Not sure what year they did the facelift on the cabs.

Andy