PNW Chit Chat thread

[5Toes]

+Flex Fuel Sensor
+New Ethanol safe rubber
+Gaskets
+fuel pump
+too much cash

someone sounds scared to break the norm.

flex fuel sensor is easy to integrate into megasquirt
ethanol safe rubber = $80 for the hose big fucking whoop
gaskets, engine would be all new gaskets, and the ethanol is fine with the threebond I like to use
fuel pump, okay walbro 255 would do justttt fine.

I found the weights of various BMW rods in another chart and aftermarket is not much lighter

M20B25 'i' length: 135mm weight: 0.626 kg
M20B27 eta length: 130mm weight: 0.626 kg
M50B25 length: 135mm weight: 0.645 kg
M52/M54 length: 135mm weight: 0.584 kg
S50/S52 length: 135mm weight: 0.535 kg

aftermarket eagle rods are 540grams so not worth it.

even just ITBs, very aggressive cams, valve springs and megasquirt is proven 165whp-180whp on the stock m42. Im not kidding, not exagerating, those are based off of 3+ dyno graphs/videos. Id probably start off with those parts and if I want to build the bottom end later I always could. 170whp is 200 at the crank basically, and even that would be a riot in the 318. gonna make my car a s50 killer.

as far as dailying it, the car cant suffer that bad under 3000rpm, even if it did it would purely be because of the aggressive camshafts. 280intake and 275 exhaust is the max you can go according to cat cams/VAC while still retaining hydraulic lifters.

[Pdxseth]

someone sounds scared to break the norm.

flex fuel sensor is easy to integrate into megasquirt
ethanol safe rubber = $80 for the hose big fucking whoop
gaskets, engine would be all new gaskets, and the ethanol is fine with the threebond I like to use
fuel pump, okay walbro 255 would do justttt fine.

I found the weights of various BMW rods in another chart and aftermarket is not much lighter

M20B25 'i' length: 135mm weight: 0.626 kg
M20B27 eta length: 130mm weight: 0.626 kg
M50B25 length: 135mm weight: 0.645 kg
M52/M54 length: 135mm weight: 0.584 kg
S50/S52 length: 135mm weight: 0.535 kg

aftermarket eagle rods are 540grams so not worth it.

even just ITBs, very aggressive cams, valve springs and megasquirt is proven 165whp-180whp on the stock m42. Im not kidding, not exagerating, those are based off of 3+ dyno graphs/videos. Id probably start off with those parts and if I want to build the bottom end later I always could. 170whp is 200 at the crank basically, and even that would be a riot in the 318. gonna make my car a s50 killer.

as far as dailying it, the car cant suffer that bad under 3000rpm, even if it did it would purely be because of the aggressive camshafts. 280intake and 275 exhaust is the max you can go according to cat cams/VAC while still retaining hydraulic lifters.

This is how every 24v swap starts right?

[djjerme]

Have you ever driven an aggressively cam'ed vehicle on the the street..


It gets old. Really quick.

If you just want 200hp - there's a lot easier/quicker/more reliable ways to do it.

[BraveUlysses]

kind of losing interest in the idea of a turbo m42. I think 200whp m42 N/A on E85 would be a cooler undertaking. parts in mind:

VAC RACING cams + steel springs/keepers
m47 stroker crank new from BMW, knife edged and lightened + crank scraper
CP pistons 12:1 compression
m52 rods balanced (I think s52 is lightest 135mm rod from a factory BMW, definitely lighter than m42 factory ones)
30lb injectors
megasquirt
RHD engineering ITB kit + flywheel
custom longtube 4 into 1 headers

I think 200whp is doable with a 2 liter m42!!! flame suit on. just dreaming today at work, I am well aware this build would be $6000+

Spend 6k on being a better driver.

Or a FC20 swap, at least that will sound cool, whereas an m42 will never, ever sound good.

[spiDmang]

Spend 6k on being a better driver.

Or a F20C swap, at least that will sound cool, whereas an m42 will never, ever sound good.

ninja edit :up:

[djjerme]

Spend 6k on being a better driver.

Truth

[5Toes]

Im not spending any money any time soon on any engine build of any kind. I work in an office exclusively with old ladies who drive me crazy with their girlie talk and mannerisms so I tend to daydream a lot at work LOL

f20C swap would be dumb and cost equally as much if not more and not be anywhere near as cool but that's just my opinion

[spiDmang]

Im not spending any money any time soon on any engine build of any kind. I work in an office exclusively with old ladies who drive me crazy with their girlie talk and mannerisms so I tend to daydream a lot at work LOL

f20C swap would be dumb and cost equally as much if not more and not be anywhere near as cool but that's just my opinion

F20C > M42 all day, everyday. That statement just shows you've never driven an S2000.

[IronJoe]

Sub-200whp horsepower goals = killin it.

[ahrensNW]

How much torque does an f20c eh?

[BraveUlysses]

Im not spending any money any time soon on any engine build of any kind. I work in an office exclusively with old ladies who drive me crazy with their girlie talk and mannerisms so I tend to daydream a lot at work LOL

f20C swap would be dumb and cost equally as much if not more and not be anywhere near as cool but that's just my opinion

you're young and full of bad ideas, lol

just buy a metric mechanic motor and be done with it, if you feel like pissing money away.

[BraveUlysses]

How much torque does an f20c eh?

enough to turn a supercharger :-D

[5Toes]

nope have not driven an s2000. and as far as 200whp in my gutted car, that could possibly outperform a e30 m3 EVO III. so don't see all the hate... why does everyone have to be so cynical? I like thinking out of the box and thinking about about things that have not really been tried in the community before, and just because something hasn't been done doesn't mean its a bad thing.

Anyone could go waste their money on a metric mechanic 2.1 rally m42, but for that much money a custom one off engine would outperform it on the dyno and be something I could be WAY MORE proud of.

[djjerme]

So your goal is to outperform an E30 m3 EVO III in what?

All out speed on a track?
Purely hypothetical numbers?
On a Dyno?

Think outside the box is something like jamming an S2000 motor in the car, what you are proposing is to throw bad money at a project that probably won't net you the gains you think it will.

Look, we aren't telling you to NOT mod your car, but we are trying to help you spend your money wisely. Sometimes, there are reasons certain things aren't done to certain motors/chassis..etc. Not just because nobody has ventured down that path, but more so because it's not worth it in the end.

If you want to go all Ricky Bobby "I wanna go FAST!" then there is lots of avenues to do that. But it's a balance game.

[5Toes]

I mentioned an EVO III because it is the holy grail of e30s and not all that powerful.

I drove my 325is the other night and it is a letdown compared to the m42 car in the handling department, stock vs stock. Im not interested in building a I6 e30, if I was Id be seriously looking for parts to put my s50 with a turbo manifold and ARP head studs in the car..

the BMW s42 is seriously bad ass and shows what the m42 head casting is capable of... I think the m42 hasn't gotten much attention because it is overshadowed by the s14, which in race trim made less hp/liter than the s42 which I find peculiar.

been talking to RHD engineering about their m42 itb set and hope to have my own set by the end of the month. better mpgs, more power, better sound, whats not to love haha (except the price)