M20 2.9 can i supercharge.

[jules325i]

I have a 2.9 stroker 10.2:1 compression 272 schrick cam, with mls HG.
I am looking at a supercharger kit that is made for a m20 that claims 250WRHP
on a stock 325i. and i think it will make my stroker thrash.
Is my high compression going to be a real issue.
I know turbo is more efficient and cheaper but i don't want to turbo. and i have heard SC are safer.

[e30trooper]

No way dude. You haz m20 no way jose

[e30trooper]

[travish325]

run e85. Problem solved

[jules325i]

run e85. Problem solved

I run 98 and it's my dd

[sayed ali]

Turbo is cheaper?? I don't think so...

with engine like you have + turbo + e85 + tuning = BIG WIN :)

[jules325i]

Turbo is cheaper?? I don't think so...

with engine like you have + turbo + e85 + tuning = BIG WIN :)

i want to SC its easier because i have no AC and it will slot right in there.
Unlike a turbo where my car is RHD so i have all the steering components in the way, and the heat that a turbo immits.

[Hey_You]

Ummm, superchargers get hot as fuck too. Just sayin. But do it! Blow that biatch!

[JCarp90]

In for your RHD SC build thread.

[nrubenstein]

I run 98 and it's my dd

98 RON is roughly the same as 93 here. It's nothing special.

[jules325i]

so can i run low boost with 10.2:1 with megasquirt.

[Denny]

I have a 2.9 stroker 10.2:1 compression 272 schrick cam, with mls HG.
I am looking at a supercharger kit that is made for a m20 that claims 250WRHP
on a stock 325i. and i think it will make my stroker thrash.
Is my high compression going to be a real issue.
I know turbo is more efficient and cheaper but i don't want to turbo. and i have heard SC are safer.

I supercharged my stock M20 2.5L at 10PSI.

For a 2.9 stroker I would use the M90 SC instead of the M62, I used th e M62 for my engine which is smaller

I would run max boost 5PSI - 10.2:1 Compression on you stroker.

[jules325i]

I supercharged my stock M20 2.5L at 10PSI.

For a 2.9 stroker I would use the M90 SC instead of the M62, I used th e M62 for my engine which is smaller

I would run max boost 5PSI - 10.2:1 Compression on you stroker.

thanks for the advice.
How did you stock 325 go on 10 psi.

[Denny]

thanks for the advice.
How did you stock 325 go on 10 psi.

its now on 12 PSI with only 16 degree timing at WOT. Only way to describe it ...it accelerates like if I have a V8 under the hood. Lots of low end power except I get a great mid range and some high end too. ITs a beast right now

Its exactly what the E30 needed... now I will prepare for the turbo side (twincharge)

on your setup I would use the M90 (the one off the thunderbird) and run it at max 5PSI with a good amount of timing and the M50 crank pulley I have one if you need.