If you want to Turbo you m20 for track purposes use a Really efficient internal gated turbo. I know Sr's are known to make 300whp or a little more on a Disco potato "gt28r" with supporting mods.
Announcement
Collapse
No announcement yet.
Do you have a M20 hot rod or swapped Motor?
Collapse
X
-
I like the big stroker M20 because it's period correct and sounds sweet at idle. That's a lot of questions in the OP, but lets just say I'm happy with my choice even if it's been a pain in the ass to keep running right lately. It probably costed more than an S5x swap but was easier to do IMO, and you don't have to fiddle with anything to retain all of your features. Fuel economy is as expected for a brand new engine - pretty decent. The only thing I'd do differently is find a better fuel management option.
Comment
-
Originally posted by Raxe View PostI like the big stroker M20 because it's period correct and sounds sweet at idle. That's a lot of questions in the OP, but lets just say I'm happy with my choice even if it's been a pain in the ass to keep running right lately. It probably costed more than an S5x swap but was easier to do IMO, and you don't have to fiddle with anything to retain all of your features. Fuel economy is as expected for a brand new engine - pretty decent. The only thing I'd do differently is find a better fuel management option.
Comment
-
My long term is 350 to the wheels on a built m20b27(seta)
So far what is done:
Schrick 288 cam/Schrick HiPerformance springs(rated to bursts of 11k)
IE HD rockers
MLS and ARP studs
Then boost like a madman with a clutch to put it to the ground.~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~
Instagram: @BWeissLeather
Current cars:
~ '87 325 M30B35 swap
~ '87 535
~ 01 540 Msport 6spd
~ '06 X5 4.8is
Comment
-
Originally posted by evandael View PostAin't no replacement for displacement.
Except a turbo.
My own opinion ranks these options, from best to worst on a smiles/$ ratio: proper running stock M20, M30, S52, LSx, proper turbo M20, built M20.
I already went the m50 route once on one of my first e30s. I am going back to the m20 for a happy revving force induced monster. low to mid 300s it more than I would ever need for SCCA/Weekend track days.
I know in the long run to reach s52 power with my m20 is going to cost more than s52 swap. BUT in the end I will have a rebuilt m20 with everything replaced and a cute snail :)
For NA swaps for best bang it is M30b35 with a single mass FW hands down. Cheaper than a S5x and sounds amazing. IMO I would never S50 swap, not really worth it for the price of a S52 now days.
S54 is the perfect swap if you have the money, that engine is insane in the e46 M3. I have never gotten the honor to ride in a e30 with that...but I bet it is scary fast.~ Puch Cafe. ~ Do business? feedback ~ Check out my leather company ~
Instagram: @BWeissLeather
Current cars:
~ '87 325 M30B35 swap
~ '87 535
~ 01 540 Msport 6spd
~ '06 X5 4.8is
Comment
-
Originally posted by F34R View PostCheapest swap IMO would be the M30b35, gobs of trq and feels like a freight train from low to WOT. I loved my e24 just because of the straight line fun.
I don't mean to knock s5x swaps - It's a great motor. But in some ways it doesn't feel right in an e30 - almost too "smooth". But then again - it's a heck of a motor.
With that said. I know if I ever need a to do some head work on my m30 it's not going to cost me much. I pucker-up at the cost of a proper 24 valve rebuild.
And m50...pfff....not worth the effort IMHO. Unless your m20 needs rebuilding/replacing. Then pick one up for cheap. Cost will be about the same.
Also - since I'm on a rant - turbos just don't do it for me. I don't like the "SUSPRISE!!! YOUR ON BOOST" feeling in a corner.
Back to M30's - you won't find one person that has owned or driven a e30m30 that doesn't like all that pure, unadulterated, grunt that a m30 gives you.
An S5x is like the girl you want to marry - an m30 is the girl you don't bring home to mom.Last edited by george graves; 08-19-2012, 07:33 PM.Originally posted by Matt-Bhey does anyone know anyone who gets upset and makes electronics?
Comment
-
Originally posted by george graves View PostAlso - since I'm on a rant - turbos just don't do it for me. I don't like the "SUSPRISE!!! YOUR ON BOOST" feeling in a corner.
Comment
-
I have an ix, so an M20 makes a lot more sense. I'm done with M20s for now, and am working on something else - a swap in an ix, done right, will cost way more than a built M20. It really wouldn't make sense to do an M5x or even S5x swap in an ix, the power gains over a built M20 are just too small for the effort (I have about 210-220bhp with the M20).
also, comparing a $500 junkyard M50, to a brand new, custom built M20 with go-fast parts is stupid. If you built the M50 the same way it would cost far more.
M20s:
-simple to build
-cheap to build (relatively)
-easy to tune
-light
-sound better
-rev higher
M30s are cool too, just not my cup of tea.
Originally posted by VinniE30 View Posthuh? I'm not trying to convince anyone to do engine swaps at all, I like M20s. But if you want a high reving N/A motor than I think what you want is an engine swap, not an M20. And for starters, stroker and high reving don't go well together. If you want high reving then increase bore, not stroke.
M5x and S5x aren't exactly high reving engines. Not unless you throw a ton of dough at them. A set of schricks cost what, $2k? then you have 24 valve springs to replace, and you probably don't want to keep the hydralic lifters, so you'll need 24 aftermarket lifters, etc. etc. People have this illusion that you can build a 24v motor cheap, it's 100% BS. It's only cheap if it's a bone stock junkyard pull. building a 24v head probably costs 4x as much, and there's 2x as many parts.
Comment
Comment