miller maf, or megasquirt?

[87-325ic]

ill add that i have headers and a full exhaust, and a mild port on the head.

im sure it will help a little something wont it?

[gearheadE30]

IMHO maf isn't worth it. it certainly won't fix anything.

also, I'm running MS2E v3 and an LC1, totaling $400 thus far.

[SpecM]

and it saves like 20 lbs up front...

what?

how?

try finding a good #173 DME, and make sure the engine is in good tune. Replace the O2 sensor if it looks iffy, replace the valve adjustment eccentriccs if they can't stay tight, and grab a voltmeter and a wiring diagram and make sure the 02 sensor harness is in good shape.

[nando]

the AFM can't weigh more than 5lbs

[HarryPotter]

the AFM can't weigh more than 5lbs

I believe it's around there, definitely not 20, maybe with the airbox and everything but even then I doubt it.

[SpecM]

I say a MAF weighs 2 or 3 lbs less than a Bosch AFM, tops

[nando]

I believe it's around there, definitely not 20, maybe with the airbox and everything but even then I doubt it.

you still need an airbox or some type of filter

you could probably take a dump before you got in the car, and save as much weight. ;)

[M3 Ryan]

I have had both setups. I wouldn't run MS again. I like the miller MAF for throttle response, wakes the M20 up a bit. If your sticking with minor bolt on mods, the Miller MAF is good. If your going something crazy, then MS will work for you but is a lot of effort to make it right.

[tjts1]

it will "get the job done" but have fun daily driving a car with no idle control and poor AE.

WTF are you on about? MS1 extra can run a PWM ICV just fine and it has no problem with acceleration enrichment, both TPSDOT and MAPDOT.

http://www.msextra.com/doc/ms1extra/MS_Extra_Hardware_Manual.htm#Fidle

Have you ever worked with MSextra or tunerstudioMS? MS1 with extra_HR firmware is more than enough for 90% of users.

[nando]

closed loop in MS1 has never really worked right, maybe it does for you, but not for the vast majority. and mapdot/TPSdot AE sucks, sorry. that's just IMO.

I've plenty of msextra/TS experience ;)

[e30rida]

If you can't make a stock e30 run right, what chance do you have with megasquirt?

Amen. The miller MAF won't solve anything if you have ecu issues.

[der affe]

if you are set on going for a MAF, i am going MS and will be selling my MAF conversion, along with a chip and 19lb injectors. PM me for details, i'll make you a package deal. you can always ad the WAR chip to this set up too.
once i got the PO's shitty wiring all sorted out it worked well, but i want more and am going to go s/c'ed so i need more than what this can offer.

my current set up is a 2.7 stroker, 292 cam, Dbilas ITB's. MAF, msds shorty headers, no cat. and cat back.

[whatt18yahoo]

dude just make the car run right if you're not capable go to a local shop thats good with the m20 or go to bmw for a diagnosis then do the work yourself if you must save the cash.

i've come to the conclusion owning a bmw is kind of like masturbating with icy hot sure it's fun and exhilarating everytime you do it but eventually you're gonna need to get something fixed.

lol

[IDM]

Miller MAF conversion will be the easier route as it pretty much comes as a kit. But you may want to do as the other said. Get you car running properly then think about modding it.

[87-325ic]

what?

how?

try finding a good #173 DME, and make sure the engine is in good tune. Replace the O2 sensor if it looks iffy, replace the valve adjustment eccentriccs if they can't stay tight, and grab a voltmeter and a wiring diagram and make sure the 02 sensor harness is in good shape.

the afm is freaking dense. thats all i meant. i'd love to see that big hunk of aluminum replaced with a smaller piece made mostly of plastic.

sounds like a decent plan. i need a 173 now.
is there any reason i shouldnt replace the eccentrics with the head on the car?
i think this could be some of the reason too. every time i do a valve adjustment it sounds and runs great for a week, then after ive run it up to 6-7k rpm cause its runs and sounds so good, it starts that loud version of the ticking again! i feel like on or two valves seem to jump back to their old position, even though i tighten the crap out of the little bolts.

i guess the best way to check for this is to re measure the valves after a few weeks huh?

I have had both setups. I wouldn't run MS again. I like the miller MAF for throttle response, wakes the M20 up a bit. If your sticking with minor bolt on mods, the Miller MAF is good. If your going something crazy, then MS will work for you but is a lot of effort to make it right.

thanks for this great answer.