How much power can be extracted for the M42 ?

[nando]

how about and s50 or is it s52 (correct me if i'm wrong)

out of an m coupe, all aluminum block. light wieght, i know its lighter then the m20 but i don't know about the m42

someone shed light on this option for the man.

anyone know the weights of some of the popular engines?

http://www.r3vlimited.com/phpBB2/viewtopic.php?t=10821

[boostboss]

there is a turbo M42 down melb way that puts out about 150 rwkw with stock internals and he put about 10ish into it. AVO did it.
search on www.gccv.net
i could send you a docu on it vs a M3 vs a M50 e30 if you want??

[shahe]

The M50 swap is a bad idea.

The 318is is SUPPOSE to be lightweight. With that heavy pig M50, your car would suck. The V8 motor from your Holden Monaro is 100lbs lighter than the M50, more reliable, has alot more potential, has ALOT more stock power(double I think) and gets better gas mileage. You might as well swap that if you are considering putting a twin-cam BMW I-6.

You could also put in an M20 out of a E30 325i, and turbo it. There is plenty of information, and the M20 responds really well to a turbo and can take high boost. It would keep front end weight down, so your handling wouldn't be affected as much as with an M50.

There are very few forced induced 318is E30s out there. So there isnt much information. That would be a harder project. The LS1 swap, would be the hardest though.

Dude, shut the fuck up.

If he has $10,000 he could do an M50 and have enough for a CF hood and fenders to make up that slight difference in weight.

Yes and be stuck with a motor with only 20 more horses, worse reliability, and not much potential.

The M50 is shit. Pure shit. Why would anybody bother with an M50 when an M20 that can be had for so cheap could put out ridiculous numbers with a turbo!

the m20, dispite being a great stock motor for a car degined in 1979, is in no way a great performance motor. just becuase matt was able to turbo it and get it to perform so wonderfully, dont get your hopes up of you being able to do so. plus how long has matt's car been running? ( no offense matt) anyway, the m50, a motor i hate, is ages beyond the m20, if you think other wise, you need to get your head out your ass so you can remove the foot from your mouth.

the m20 wont even make 200 whp from an all motor setup, streetable setup that is. many many members have tried and failed. you want 200+ whp from an i6 in an e30 get an s52 odb1 and your done, no ifs, buts, or ands about it.

the s50/s50 can easily make 300 hp no problem. and the fact that he is down under he can grab some nice euro e36 motors, this means 280-320 reliable factory ponies out the box. so once again, i will ask you, just like others have, to shut the fuck up and dont talk unless you know what your talking about.

[GreekDriver]

Matt is not the only one with 300rwhp.

In addition, the M20 is crap naturally aspirated. I know that. I was telling him to get the M20 for purely forced induction reasons.

Do you people have some kind of hate for the M20? Put a stock 160k miles M50 under 13lbs of boost and tell me how it is in a week...

Why bother with a Euro ///M3 motor when a built M20 + turbo would make that Euro motor look like an M10. A rebuilt M20 setup for a turbo with a large turbo steup would be reliable and more powerful. The way I see it, is price for price a turbo M20 would produce more horspower than a Stock Euro M3 motor. When you start modding the M3 motor, you start paying alot for the additional horsepower, theres not much more N/A power you can squeez out. I see the M3 motor limited without throwing alot of money its way. I see ridiculous amounts of power from an M20 for cheap.

Tell me... What would be cheaper to get 420rwhp out of an M20 or an M3 motor.

[riverdale21]

Turbo the M42 and spend the rest on suspension/brakes. I have managed thus far to keep my M42 turbo parts list under $600 (TD04L turbo, Saab IC, SMT-6 ecu, 550cc injectors). I should be getting the exhaust manifold and downpipe fabricated up soon. When all is said and done I will post pictures. For the time being I'm keeping it under wraps.

As far as the M50 vs Everything else battle heres my pocket change: As far as the M50 in E36 guise I will have to agree, it handles like a fat pig. I have so much more fun driving my M42 powered E30 than the M50 powered E36. It may not have as much power but I spend my time in the mountains and if you keep the M42 in its sweet spot you have more than sufficient HP/Torque.

At any rate. It is your car that you are modifying. Consider your budget, your goals, your likes, your dislikes before you spend a fortune or start doing mods just because other people recommend it. Do it right the first time and do your research.

[mjc85]

Yeh i'm thinking about S50 swap at this current time or make the M42 blown.

Anyone know where i can source a S50 in Australia ? and how much would i be looking at ?

[Rob]

GreekDriver, you really, REALLY, don't get it.

Tell me... What would be cheaper to get 420rwhp out of an M20 or an M3 motor.

are you serious? seeing as how internally stock s50 and s52s put that down with bolt on kits.....

[e30Matt]

Do you people have some kind of hate for the M20? Put a stock 160k miles M50 under 13lbs of boost and tell me how it is in a week...

But first you have to lower the compression ratio of the M50 to make this a fair comparison.

You think some dumbass out there is going to run 13lbs of boost on a stock-compression M50? You've got another thing coming, in the form of a boot in your ass.

[Digitalwave]

my M42 powered E30 than the M50 powered E36.

Big fucking difference there dude. We are talking about E36 powered E30's, not E36 powered E36's.

Greek, I don't see how you think M20 turbos are reliable. Matt has blown at least 2 headgaskets, and has had so many problems with it its not even funny. He just doesn't post about all of them.

And lets not even start about Diego's turbo M20... which gets torn apart every other week because of some issue or another.

[e30Matt]

my M42 powered E30 than the M50 powered E36.

Big fucking difference there dude. We are talking about E36 powered E30's, not E36 powered E36's.

Greek, I don't see how you think M20 turbos are reliable. Matt has blown at least 2 headgaskets, and has had so many problems with it its not even funny. He just doesn't post about all of them.

And lets not even start about Diego's turbo M20... which gets torn apart every other week because of some issue or another.

Not to mention how long it took us to get Ian (E30Godz)'s turbo M20 running right.

[mjc85]

Hey dipshits stop hi-jacking my thread

[iXer]

mjc85: I would consider what riverdale21 wrote above:
"Turbo the M42 and spend the rest on suspension/brakes"
This would involve rebuilding the engine, you have to lower the compression to get it to reliably output enough power to make it worth the work you put in to it. The downside to this is that a turbo system would add so much weight to the front (which you seem very concerned about) that I think a E36 M3 engine would be the way to go for you.

Greek, I don't see how you think M20 turbos are reliable. Matt has blown at least 2 headgaskets, and has had so many problems with it its not even funny. He just doesn't post about all of them.

And lets not even start about Diego's turbo M20... which gets torn apart every other week because of some issue or another.

Neither Matt or Diego have professionally built and tested turbo systems on their M20 engines, I fail to see your point. The power that Matts car puts out is what I see on numerous M20 engines here in Sweden, with reliability. There are so many things that can go wrong with a turbo system unless you're in complete control. I think Matt could fill us in on what has gone wrong for him, I personally think he has got one of the best turbo M20 engines out there, he has had problems with controlling boost which will be sorted out, last I heard.

With $10.000 (AUD) you could easily afford the best components out there and get expensive enginge management and get it professionally mapped/tuned. This possibility has not been available for Matt and certainly not Diego.

/Mattias

[shahe]

Matt is not the only one with 300rwhp.

In addition, the M20 is crap naturally aspirated. I know that. I was telling him to get the M20 for purely forced induction reasons.

Do you people have some kind of hate for the M20? Put a stock 160k miles M50 under 13lbs of boost and tell me how it is in a week...

Why bother with a Euro ///M3 motor when a built M20 + turbo would make that Euro motor look like an M10. A rebuilt M20 setup for a turbo with a large turbo steup would be reliable and more powerful. The way I see it, is price for price a turbo M20 would produce more horspower than a Stock Euro M3 motor. When you start modding the M3 motor, you start paying alot for the additional horsepower, theres not much more N/A power you can squeez out. I see the M3 motor limited without throwing alot of money its way. I see ridiculous amounts of power from an M20 for cheap.

Tell me... What would be cheaper to get 420rwhp out of an M20 or an M3 motor.

please stop, you are a tool. youre comparing a sohc motor that is unreliably being boosted to 321 stock factory hp?

[nando]

I think we need an M50 vs M20 forum... :roll:

The problem with the M42 (especially E30 M42) is there is virtually no aftermarket for it. you'd pretty much have to go all custom for big power, in the end it might be easier and simpler to just drop in an S50 and call it a day.

[e30Matt]

I think we need an M50 vs M20 forum... :roll:

The problem with the M42 (especially E30 M42) is there is virtually no aftermarket for it. you'd pretty much have to go all custom for big power, in the end it might be easier and simpler to just drop in an S50 and call it a day.

Not entirely true. There are quite a few performance mod options out there, intakes, cams, solid lifter conversions, chips... although not nearly comparable to the I6 selection.