turbo m42?

[randomtask37]

are they out there?

it seems like it would be great to hook up a 318 with more power and not much more weight.

just wondering why we dont see them more.

[e30Matt]

I'm experimenting w/it before my engine swap. I'll let you know what kind of numbers I get.

[Wes325]

I have seen it been done before in a European Mag I had a while ago. He was running with an Alpina C2.7 and a 2.5 E30 M3. The owner was very impressed and I do remember that it was a daily driver.
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cannabis collective

[E30godz]

well i guess partly because it has fairly high compression....does it have a knock sensor? I know we have established that putting an SMT-6 on one would be CAKE as it uses a REAL TPS sensor. Definitley hit me up when you get started Matt

[graphik]

the m42 is already highly tuned. the high compression doesnt help with turbo. the e30 m42 doesnt have knock sensors, but the e36 m42 does. hope this helps somewhat.

alex

[nando]

I don't think you'd want to turbo an E36 M42 with it's cast crank..

are knock sensors neccesary? I can think of lots of turbo cars that don't have knock sensors. you'd just need a huge IC and enough fuel to keep it from detonating. maybe use a thicker copper head gasket or some custom dished pistons to lower the CR.

I'm sure it could be done, but you could probably drop in an S14 and be done with it for around the same cost it would take to build up the M42 that much..

[graphik]

the m44 had the cast crank, the m42 had the forged crank. at least i think thats right.

[randomtask37]

what is the CR of the e30 m42.

o yea, and what is a knock sensor?

[graphik]

i believe the compression is something like 10:1 or 10.5:1

[Sean]

That seems way too high for a turbo - wouldn't that cause some problems down the road?

[bimmerphile]

That seems way too high for a turbo - wouldn't that cause some problems down the road?

Yes. Lots.

[chesster6969]

That seems way too high for a turbo - wouldn't that cause some problems down the road?

Tell the RIcer Honda guys that. Most Honda engines have the same high compression ratios yet still run turbos.

[Streetspec_iS]

lack of knock sensors wouldnt be a problem so long as you dropped the compression sufficiently. it is possible to retro fit knock sensors too, if you deemed it necessary.

local(AU) e30 m42 turbo throws down 130kw(~175hp)@6250 @ the rubber. pretty fun car i would imagine.

[E30godz]

i really havent heard anything good about using a copper headgasket, except in race applications as they tend not to seal very well untill the engine is up to fool operating temperature....you can however stack two stock headgaskets.

[rwh11385]

o yea, and what is a knock sensor?

It's a device that senses knock. Really.

It the car isn't tuned quite properly, and denotates, aka knocks, the sensor will pick up on it and tone back the timing or somethinglikethat.
It basically keeps you from fucking up the engine. They come in handy when running hardcore shit.

Don't Ricer Hondas have knock sensors, on the GSR's at least. I know you could run regular, but recommended premium. Probably a knock sensor keep it all cool. SR20's had a knock sensor, as well as a kick ass adaptive ECU. They take turbos really well :)
If only the E30 had more adaptive ECU and a knock sensor, people could be pulling more sick shit.