E30 1990 318i m40b18 upgrades?

[Scorched_onion 0]

How hard is it to find turbo parts for an m40? i suspect i'd need a custom manifold etc? pricey?

[No name user 379]

Unless info: first off ive just finished building a m42 turbo to replace my m40b18 using the same ecu and wiring yep a single coil m42.( post pics but no one seems to understand)

Anyway m40 breaks belts the same reason as every other one does, lack of changing or maintance.

Turbo m40 using a j pipe setup on a stock motor and reflash ecu is an easy 200hp not very high power in my books but would improve your ride big time and its the torque that makes the differance.

[Silver Fox 43]

As Crunchy says, only M40 belts I've seen break have been old ones, mostly over 150,000 ks. Never seen a 318 race car do a cam belt yet, even after 2 or 3 years racing, nothing wrong with the belts.

[Scorched_onion 0]

Unless info: first off ive just finished building a m42 turbo to replace my m40b18 using the same ecu and wiring yep a single coil m42.( post pics but no one seems to understand)

Anyway m40 breaks belts the same reason as every other one does, lack of changing or maintance.

Turbo m40 using a j pipe setup on a stock motor and reflash ecu is an easy 200hp not very high power in my books but would improve your ride big time and its the torque that makes the differance.

Nice nice, so you're running the m42 on your m40 ecu? what did you do about the wiring harness? and how much did it cost you to do the turbo on your m42? got any hp and torque numbers? also how did you get the manifold and what did you do about the oil feed and return lines for the turbo? With the breaking of belts i just read that somewhere too by the way.

[No name user 379]

Nice nice, so you're running the m42 on your m40 ecu? what did you do about the wiring harness? and how much did it cost you to do the turbo on your m42? got any hp and torque numbers? also how did you get the manifold and what did you do about the oil feed and return lines for the turbo? With the breaking of belts i just read that somewhere too by the way.

im doing the same conversion i did to my m50 and the only wiring to do was extend a few to reach certain sensors, itll be alot easier if i post a pic of the engine on the stand then ill tell whats in it

[No name user 379]

m42 JE 8.5/1 comp evo pistons, H beam rods, acl race bearings, cap screwed mains, cap screwed head bolts, modded oil pump, disy cap conversion,m50 throtlle body,510cc injectors,4ltr plenium, formed trumpets,block has been ground threw out to remove all cast finish,turbo kkk27/26 46mm gate.

oil feed off filter housing return goes into front timing cover.

Edited August 2, 2011 by crunchy

[Scorched_onion 0]

im doing the same conversion i did to my m50 and the only wiring to do was extend a few to reach certain sensors, itll be alot easier if i post a pic of the engine on the stand then ill tell whats in it

So im a bit confused. Are you swapping the m40 with an m42 turbo out of an e30 or an e34/6??

[Scorched_onion 0]

Where did you get your turbo manifold from?

[No name user 379]

m40 is coming out of my e36 m42 going in i made the manifold intake and stainless exhaust headers, stock ecu using a MAP3 to remove afm and control ignition and fuel with boost control and launch control and auto tune for base tune.

Edited August 2, 2011 by crunchy

[Scorched_onion 0]

Awesome