does a m roadster engine fit in a z3??


Speedfreek89
07-07-2004, 09:07 AM
hey, i was just wondering if a m roadster engine would fit in a z3 1.9. someone also told me that m roadsters have the same engine as m3's except for their exhausts. please help me out because i'm looking for some serious hp fast. thanks !

jeffreyb4me
07-08-2004, 08:15 PM
serious but expensive H.P. the engine [S52 US] fits
[they build them you know] but you'll need the entire driveline[front pulleys to rear wheels], radiator, braces, harnesses......maybe just buy a M-Roadster or Coupe, might be much cheaper in the end.

Speedfreek89
07-08-2004, 09:49 PM
serious but expensive H.P. the engine [S52 US] fits
[they build them you know] but you'll need the entire driveline[front pulleys to rear wheels], radiator, braces, harnesses......maybe just buy a M-Roadster or Coupe, might be much cheaper in the end.

thanks a lot for your reply. could you give me some better advice on how to get a lot of h.p. besides a supercharger, which i have already planned on purchasing, for a z3 1.9? I'm looking for a $5-10,000 limit. thanks again.

jeffreyb4me
07-08-2004, 10:01 PM
well, honestly?, for the money you really should consider selling your Z3 and finding another 2.8 or 3.0 liter roadster...........honestly! if you insist on your present car, the supercharger sounds best.

firstacrosstheline
12-04-2004, 05:58 AM
Engine will not fit very easily at all - for starters you wont be able to close bonnet!!! - Z3M has big hump to accomodate straight 6...

jeffreyb4me
12-04-2004, 08:52 AM
ummm, ok, but, physically, externally, the dimensions are identical between the M52/TU, M54, and the S52, S54 so I'm not sure what your......... the 'bonnet' closes quite nicely on the ones I service.

But keep coming back.

VFW_ARMY_Z3M
03-27-2006, 04:35 PM
Why bother. If you get a 1.9 it is inherently slow less horse power than a stocl Honda Civic, you could have the 1.9 bored and stroked, but by the time you do an engine swap, wiring harness update, drive line swap the conversion is going to cost thousands over what it would cost to get a built stock motor, or even buy an M roadster outright, you're looking at a money pit, and when you go to sell it no one will want it, just bore and stroke it.

BMWJosh
07-08-2006, 10:37 PM
Yes u can fit it in the car its not really any complication just alot of work ahead of ya but well worth it no hump either z3's have 2.5 and 2.8 straight six's money wise i'd buy a wreck M-coupe for around 3500 bucks or more i've seen engs. go for that but with a wreck u get wiring harnesses,comp.,driveline, and M suspension heh Hope this helps.

BMWJosh
07-08-2006, 10:38 PM
besides an M3 is just a beefed up Z3 suspension,eng.,wheels, that sorta of stuff thats all.

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