what can we do to give Mr m20 power

[Sean]

MarkD Chip, Bav Auto CAI, GOOD heatshield of some sort, Exhaust.

All of you who think you're going to get a full rebuild for $1500 are dreaming, plan at LEAST twice that to build a good M20 with new parts. And at that price you might as well add some extra valves and variable cam timing. Boost is another story though, I would happily spend money on an M20 built for boost but for some reason I balk at spending it for an N/A motor.

You could do a rebuild using eta bottom end, super eta pistons and stock I top end for $1500. I spent about $600 on all rebuild pieces and probably $300 for machine work. That's just for the bottom though. My top end is still original, close to 210,000 on it now. If you get new pistons and a different crank - most def. not.

[Fidhle007]

MarkD Chip, Bav Auto CAI, GOOD heatshield of some sort, Exhaust.

All of you who think you're going to get a full rebuild for $1500 are dreaming, plan at LEAST twice that to build a good M20 with new parts. And at that price you might as well add some extra valves and variable cam timing. Boost is another story though, I would happily spend money on an M20 built for boost but for some reason I balk at spending it for an N/A motor.

[nefarious7907]

They use the 3.2 M3 crank, but stock it will not drop right in because the ends are different.

[Sean]

What crank does IE use for the 3.1 stroker?

That's how much I'd want to punch it out.

Not sure what IE kit uses, but there are a few options for cranks, with some minor modifications

Eta crank - 81mm throw
M50B28 crank - 84mm throw
S50 crank - 86mm throw <I THINK
S52 crank - 89.1mm throw <I THINK

[z31maniac]

What crank does IE use for the 3.1 stroker?

That's how much I'd want to punch it out.

[//MPower]

I vote turbo.

[Sean]

yeah, cause 15.5 1/4 miles are totally worth all the effort :p

Yea, agreed. Stroker are lots more fun than M50's. M50's are meh. Strokers are YEA!!!

Seriously...would you rather have some boring ole' 24v m50? Or a rebuild, fresh, torquey M20??

M20 strokers all the way!! S50 though...that's a different story.

For the amount of money one would spend on an M50 swap (probably at least $1,500) you could rebuild an M20 and have a fresh newly built motor. Now, rebuilding an M20 to stock form IS pointless - but do a budget stroker in the process, and it's damn fun!

[DCColegrove]

...885 head 5 angle seat cut new double valve springs (billet rockes if you can aford them), reshape the manifold ports, large bore throttle body, software change (Steve Dinan did a good job on this one), slow down the accessories (under-drive the alt, wp and ps). Then start throwing parts away get the chassis weight down and low.

[nando]

yeah, cause 15.5 1/4 miles are totally worth all the effort :p

[nefarious7907]

I honestly dont think the M20 is worth rebuilding, you would be better off swapping to an M5x motor

[ptownTSI]

i'd start with a rebuild. Have the head ported, valves back-cut, 2.7 crank, overbore on the pistons for a 2.8 stroker. Knife edge the crank, crank scraper, agressive cam, 10:1 -11:1 pistons depending on what you want your octane needs to be, customized ECU chip. and have the intake manifold gasket matched to the heads, maybe send it off for extrude-hone. get some nice full length headers, 2.5" exhaust. good to roll.

[E30Idea]

Drive down hill only with your foot on the gas

[ethree]

Turbo

[nefarious7907]

^^14psi would make a difference

[devonjordan]

Turbo