wtf is up with m42swaps?

[CrusherCurtis]

M20 >> M42
Plain and simple. More low end grunt, better top end, power band is smooth throughout, and sounds loads better than the m42. M20 all day!

/Thread

[gtdragon980]

M20 >> M42
Plain and simple. More low end grunt, better top end, power band is smooth throughout, and sounds loads better than the m42. M20 all day!

[Cletonius]

all i can say if you think all m10's suck, you obviously have never driven one with a kugelfischer pump.

Mechanical port injection? Link to how this works?

[travish325]

If you want speed get a skyline

With a gallo 24 engine right?

[decay]

It really has no desirable characteristics

maybe none you care about.

some of us want better than two-valve heads with rocker arms that shit the bed at less RPM than a new Kia can turn, sitting on top of a laughable compression ratio, being held together by a timing belt that looks like a rubber band (bonus points: only failure mode for that rubber band is "catastrophic").

i can get all that AND make my car handle worse? swapping TOMORROW.

[BlackbirdM3]

Well I have just done ALL if what you suggested. Big cams, solid lifters, duel springs, m44 valves(thinner stems and lighter) big port job, match porting, Dbilas itb's, 75mm velocity stacks, custom 4into1Exhaust headers. The head has bench flowed 234 hp. Has 11.0:1 JE ,ARP bolts , lightweight pistons, pauter forged light rods, teflon edged crank scraper, total seal rings, bosch blue top injectors, MoTeC m800 ecu, custom air intake, m20 lightened flywheel. Think thats about it. Car weighs 930 kg, has a 5small speed overdrive box with a 4.45:1 e36 318ti small case lsd. I will post results once I have them.

Sounds like a fun motor to me. I find that a lot more cool and clever than just dropping a bigger motor in. It wasn't a cheap build by any stretch of the imagination, but neither is a motor swap so I'd say well done and have fun. 234 hp will move a 318 just fine.

Will

[Swanny]

[Balkanac]

Skylines are prob a bit harder to get in US but here they are everywhere. You get an r32 gtr, they are relatively cheap now, put $5k into the engine and get min 300hp at all 4s. That's what I call bang for buck!!

[agent]

If you want speed get a skyline

Uhhh... what?

[J3M93]

m40 for lyfe, I'm at 6k all day.

Someone please give me an m42 :(

[Balkanac]

I don't see why is this so important. To me the m42 feels more refined somehow but m20b25 does feel more beefy. It's a personal preference, I prefer the m42 coz I have more fun driving it.
If you want speed get a skyline

[joolz635]

If I had a 318, I think I'd see what sort of power could be pulled from an M42. What is the Achilles heel of the M42? Head flow? How is the actual design of the head? Can it be cleaned up to flow well? I think one with a well built head, a set of cams and ITBs might be a very fun motor perhaps capable of producing some good numbers.

I can't say I've driven a 318, but I do like high revving 4 cylinder motors. I also hate seeing the wrong motor in a car. I'd rather spend a fortune one the correct motor than swap an obviously incorrect motor into the car. Heck, build a good head on the thing, get some cams, drop the compression and turbo the thing. I like NA motors over turbo ones, but if I really need big power, a turbo is acceptable, assuming the rest of the motor has been built to handle it.

Will

Well I have just done ALL if what you suggested. Big cams, solid lifters, duel springs, m44 valves(thinner stems and lighter) big port job, match porting, Dbilas itb's, 75mm velocity stacks, custom 4into1Exhaust headers. The head has bench flowed 234 hp. Has 11.0:1 JE ,ARP bolts , lightweight pistons, pauter forged light rods, teflon edged crank scraper, total seal rings, bosch blue top injectors, MoTeC m800 ecu, custom air intake, m20 lightened flywheel. Think thats about it. Car weighs 930 kg, has a 5small speed overdrive box with a 4.45:1 e36 318ti small case lsd. I will post results once I have them.

[CrusherCurtis]

Say what you want about the e30's handling with an m42, but at the end of the day its seriously just a shitty 4 cylinder, nothing special. It really has no desirable characteristics and most importantly its slow.

[PeteD]

My buddy auto-crossed a 318is back when we were in high school. That is the car that turned me onto the e30 - NA motors, nice suspension and working on driving skills. He killed it on the track in that car.

[nando]

I love how you guys with zero experience behind the wheel of an m42 car assume that you have any idea wtf you are talking about.

Mike has probably owned more than a few m42 powered cars. Talk about ignorance.

Its pretty silly how butthurt some of you guys are. M42s are slow ass balls? Stop the press! The sky is falling!