24v swap with m20 airbox

[keada714]

Hey guys,

I been reading on how a few guys are using a m20 airbox with their 24v swap. This is the setup I would like to go with. Seems straight forward beside mounting of the maf to the intake. My guess is a adapter will be needed? Anyone shed some light on this as I have yet to get ahold of a stock m20 air box.

[Varinn]

It's a touch more involved than that, you need to cut and reshape the bottom of the airbox to clear the 24v alternator setup.

[MaxBell]

You'd be better off to try to fit the 24V airbox into your E30 engine bay.

[DesertBMW]

You would need to have 60 amp alternator, then mod the bottom. What I did, I cut the part of the bottom and riveted in a license plate to prevent hot air coming from engine bay into the box. Then Adaptor from air box to MAF has to be made. I found out that velocity stack from 1994 525i air box works, then just cut out E30 airbox and secure in E34 maf velocity stack inside box. I made one out of 3" pipe instead.