what swap?

Post Tue Oct 12, 2010 6:20 pm

have seen a lot of conversions bmw and non bmw and have toyed with many different conversions myself and i really just cannot decide. i want between 300-400hp but still retain reliability driveability. just wondering if anyone on here has any ideas?
dont want anything too weighty either (v8s etc) straight 6 turbo in my eyes seems the best way to go but which one? and i dont want to be fighting for space in my engine bay either
cheers

Post Tue Oct 12, 2010 6:41 pm

s50 or s54 then

Post Tue Oct 12, 2010 6:55 pm

s50 s54? m3 engine?

Post Tue Oct 12, 2010 7:19 pm

s50...e36 m3 engine...b30=3.0 litre.....286bhp

b32=3.2 litre.....321bhp

s54...e46 m3 engine..3.2 litre.............343bhp

or there abouts

Post Tue Oct 12, 2010 7:25 pm

how much would engine and box set you back?

Post Tue Oct 12, 2010 7:32 pm

leeman69 wrote:how much would engine and box set you back?

How high is up?
The figure the hardcore members keep throwing around is circa £6k to fit one of these to an e30.

Post Wed Oct 13, 2010 11:39 am

Ouch, I´d be able to do a turbo conversion on a M50 converted car for that money

something like 500hp would be the target.

Post Wed Oct 13, 2010 12:49 pm

an m50 turbo sounds far more interesting too

Post Wed Oct 13, 2010 4:37 pm

My question is which engine is hard to swap in to E30? S50B32 or S54? Because I want to buy engine for my cabby.

Post Wed Oct 13, 2010 9:03 pm

S54 is more grief due to the electronics - fly by wire throttle and sensors all over the place.

Post Thu Oct 14, 2010 8:42 am

leeman69 wrote:an m50 turbo sounds far more interesting too

Don't discount a good old supercharged M20B25, well capable of 350hp fitted with a Rotrex C30-94 (as fitted by Tim_Haynes to his M20B25), and a "relatively" easy add-on to the M20.

If a 12-valve engine isn't your thing then an M50 would the way to go, although (personally) I'd consider a roots pump (Eaton M62) if you spend a fair bit of time in stop-start traffic at low RPM (and have a substantial fuel budget). Roots pumps are notorius for delivering low RPM grunt for the simple reason that they are constant volume pumps, as opposed to Turbo's (and Rotrex's for that matter) which are centrifugal blowers. Not that there's anything wrong with a turbo'd M50, all a matter of your personal preference, budget, driving style and intended application.

Post Thu Oct 14, 2010 8:53 am

Iv got an M50 conversion im about to haul out of my car!!

Post Mon Oct 18, 2010 4:37 pm

how about the s38? what are these like?

Post Mon Oct 18, 2010 5:06 pm

Heavy and you will have trouble shutting the bonnet.

Post Wed Oct 20, 2010 1:39 pm

i have worked with a few detroit two stroke diesels which incorporate turbos and superchargers, how well do you think an m20 would take to that?

Post Wed Oct 20, 2010 2:08 pm

M20´s like boost.

Alot.

Post Wed Oct 20, 2010 2:19 pm

leeman69 wrote:i have worked with a few detroit two stroke diesels which incorporate turbos and superchargers, how well do you think an m20 would take to that?

I'm really not sure how you would go about attaching a Detroit 2-stroke Diesel engine to an M20

Post Fri Oct 29, 2010 8:19 pm

Cosworth all the way man!!!!