m40 supercharged

Post Wed Mar 04, 2009 7:19 pm

im wanting to go down the forced induction route, would be willing to give my car to ant to turbo it but after reading a thread where someone s/c their m42 by there self was wandering if anyone has done an m40?.... i spoke to someone local to me and they said that my engine management would be ok to use if i dont go above 7psi boost, is this correct?, also what other components would i need to change/add so i can start looking.... any input would be most greatful as dont know too much about s/c....

Post Wed Mar 04, 2009 9:59 pm

There's 4 massive threads on what ya need bud

A way of cooling the charge air, the charger, I'd opt for new after market management (if you dont already have it?) as you can easily tune it to the enth degree, might want to look into uprated brakes, LSD, Larger injectors.

Post Thu Mar 05, 2009 7:22 am

thanks, is there any links to these threads?....

Post Thu Mar 05, 2009 4:13 pm

keen too

Post Thu Mar 05, 2009 4:50 pm

Hoshy:

http://www.e30zone.net/modules.php?name ... c&t=111917

Appletree:

http://www.e30zone.net/modules.php?name ... c&t=116275
http://www.e30zone.net/modules.php?name ... c&t=101676

rix313:

http://www.e30zone.net/modules.php?name ... c&t=118743

shepsevo:
http://www.e30zone.net/modules.php?name ... ic&t=96536

Matt (appletree) has another thread too that I can't find right now.

Ash

Post Thu Mar 05, 2009 5:09 pm

Snag is,the M40 does not seem to be very 'tunable',the links that hoshy(I must get some new tyres

)has posted refer to the twincam M42 unit,that is very tunable.The cheap(ish) way to improve an M40 engined car is to start with a better engine...either M42 or M20B25 or M50..

Post Thu Mar 05, 2009 5:13 pm

daimlerman wrote:Snag is,the M40 does not seem to be very 'tunable',the links that hoshy(I must get some new tyres )has posted refer to the twincam M42 unit,that is very tunable.The cheap(ish) way to improve an M40 engined car is to start with a better engine...either M42 or M20B25 or M50..

That said, Ant has built 2 turboed M40 cars that both owners seem hugely happy with. I think a S/C M40 could be quite a cool little motor if you don't go chasing huge power figures.

Post Thu Mar 05, 2009 5:26 pm

http://www.e30zone.net/modules.php?name ... c&t=125285

theres one of them.

Post Thu Mar 05, 2009 5:49 pm

yeah - my original plan back in the day was to use the eaton m45 charger on my m40 - before I got swayed in to iS ownership

Post Thu Mar 05, 2009 8:30 pm

Dont ask me ben. I cant even wire up a map mirror

Post Thu Mar 05, 2009 9:06 pm

well the thing is i currently own one of the m40 turbo's and they are great fun you can get 200bhp out of a m40 with a bit of trickery
due to the weight it feels like 300 and it great fun
cheers
Ben

Post Fri Mar 06, 2009 7:21 am

thanks fowler, i think i'll have to pop up and visit you there and discuss this along with costs (possibly turboing it), possibly get some custom internalls made and see what power a m40 will actually produce.... what time you/ant there on a saturday?....

Post Fri Mar 06, 2009 8:21 pm

I own the other one but in a cab it will keep with a m20 325 no probs!

Ant is the man for the job he knows his stuff.

Post Fri Mar 06, 2009 10:26 pm

Ben, there no point strenthing the internals the engines are cheap enough turbo it at stock CR
you can give it 10-12psi all day long.
just need a slipper on the car for some real fun lol

Post Fri Mar 06, 2009 11:17 pm

SWEET!!!

Post Sat Mar 07, 2009 9:58 am

bene30jane wrote:thanks fowler, i think i'll have to pop up and visit you there and discuss this along with costs (possibly turboing it), possibly get some custom internalls made and see what power a m40 will actually produce.... what time you/ant there on a saturday?....

Just as I thought I might stand a chance of keeping up with you ben when my IS engine is in......

Post Sat Mar 07, 2009 5:33 pm

robbo86 wrote:
bene30jane wrote:thanks fowler, i think i'll have to pop up and visit you there and discuss this along with costs (possibly turboing it), possibly get some custom internalls made and see what power a m40 will actually produce.... what time you/ant there on a saturday?....
Just as I thought I might stand a chance of keeping up with you ben when my IS engine is in......

well we will see soon, since the new exhaust the power delivery seems smoother but think the acceleration seems slower, maybe its just me lol.... have you made any progress on the conversion yet?, was busy working today and sorting my life out otherwise would have popped to see you....

Post Sat Mar 07, 2009 7:06 pm

Erm, no, in short, rather then post hijack I will start up an engine swap thread soon!