bigger throttle body

Post Thu Mar 09, 2006 11:44 pm

i have a 320i and want to fit 325i throttle body...

if i did this would i need to chip my ecu?

Post Thu Mar 09, 2006 11:52 pm

It certainly wouldn't do any harm, but it isn't essential. I'm waiting to get round to fitting my 2.5 tb on to my 2.0, and i have no plans for a chip at the moment.

Post Thu Mar 09, 2006 11:57 pm

Pretty sure its a direct swap mate.
Think you can swap inlet manifold aswell.

PS-i have these parts if you need them

Post Fri Mar 10, 2006 12:04 am

The inlet manifold is only worth swapping if you port out the inlets on the head. Too much aggro to be worth it imo.

Post Fri Mar 10, 2006 12:10 am

it's not that bad im doing two now you may see them on ebay soon

Post Fri Mar 10, 2006 12:13 am

The inlet manifold is only worth swapping if you port out the inlets on the head. Too much aggro to be worth it imo.

ah right,wasnt too sure about that bit!

Post Fri Mar 10, 2006 12:21 am

bottlecapE30 wrote:it's not that bad im doing two now you may see them on ebay soon

You mean porting the single inlet that the throttle body attaches to?

Post Fri Mar 10, 2006 12:33 am

datourer wrote:
bottlecapE30 wrote:it's not that bad im doing two now you may see them on ebay soon
You mean porting the single inlet that the throttle body attaches to?

every thing. of course i have the proper tools as im a luthier and i have some fancy dremel style tools that make it a little easyer

Post Fri Mar 10, 2006 9:05 am

datourer wrote:
bottlecapE30 wrote:it's not that bad im doing two now you may see them on ebay soon
You mean porting the single inlet that the throttle body attaches to?

The inlets on the head need enlarging to match up to the 2.5 inlet.