E30 M20 ITB Development

[nando]

Any possibility of getting a 24V adapter going to take s54 throttle bodies?

S54 throttles are way too big for the capabilities of a typical 24v swap.

IMO - and sorry, OP - RHD is already the "cheaper" ITB option. I suppose there are users now that are not familliar with the Dbilias ITB kit - not only was it super expensive (far more than RHD), it worked so poorly it was hardly better than stock.

Many big budget strokers were built around it - and none broke 200whp. RHD did that with a stock 2.5l M20. I just can't imagine somebody doing as good or better at a significantly lower cost. If you're $100l less - big deal. People will use what we know works.

RHD actually works, and the quality is excellent - you may be able to do "ITBs" cheaper, but as the old saying goes, you get what you pay for.

Maybe design a zero lag supercharger instead. Or maybe a "drift kit" for a 325e. ;)

Actually, if you want a *real* idea - reproduce parts that are either NLA or so expensive, they may as well be. The list of NLA parts that are critical to E30 ownership gets longer by the day..

[LowR3V'in]

woah!

They even have itb for m30s.

http://racehead.com.au/products-page/throttle-body-kits/bmw-m30-itb-kit-e30-open-trumpet/

someone pleease dyno that.

[digger]

You could come up with curved runners and associated airbox to make fitment of the air box easier/better but it's not going to be something that lends itself to machining or being cheap

[bjamham]

Just a quick note for anyone who may stumble upon this thread in the future - the survey is now closed, but I did get a total of 34 responses. Thank you to those who took the time to help the development.

[Powling]

Just noticed you are in London Ontario. I you are looking for an M42 car to help in developing an M42 ITB setup let me know. I've been looking to do ITB's for a while now.