M42 turbo fact thread

[Northern]

MS3Pro does seem cheaper than I remember, but then you need to add in the harness/external MAP sensor and some extras. Probably looking at 1500 once you add in everything you want.

[Northern]

What features do you require that have you shooting for MS3 instead of MS2? One can build a MS2 setup that uses the stock wiring harness for ~$500.

The only thing I can think of is the MS3Pro case/connectors being much nicer than the db16/metal box of previous MS setups, but that can be avoided if you re-use an ecu box/connector(but it's a lot more work)

Realistically, like varg said, MS2 will do anything on a 4 cyl that you need

[varg]

Can those of you who have made 300whp or more and have a custom intake manifold on your turbo M42s post some pics and details? I'm gathering info to build a one so when I upgrade to my Frankensteined turbo I can make some real power, none of this estimated 250whp and 13s 1/4mi rubbish.

I want to do it on the cheap, and use the bottom part of the stock manifold for the flange and such.

Ok, guys I am trying to decide on engine management for my build and am having serious doubts about my original plan now that I am actually seeing a possible completion of my build. My original plan was to run with VEMS. However, lately I have been drooling over the ms3 pro and honestly I have damn near convinced myself that ms3pro is what I want to do. Any thoughts?

I am a big megasquirt guy, but I've been working with it for a while now. MS3 is impressive, but I haven't set any of them up yet, let alone MS3-Pro. What features do you require that have you shooting for MS3 instead of MS2? One can build a MS2 setup that uses the stock wiring harness for ~$500.

[m42_turbo]

Ok, guys I am trying to decide on engine management for my build and am having serious doubts about my original plan now that I am actually seeing a possible completion of my build. My original plan was to run with VEMS. However, lately I have been drooling over the ms3 pro and honestly I have damn near convinced myself that ms3pro is what I want to do. Any thoughts?

Your original plan to run with VEMS is better plan! VEMS it's to stabile work and many progressive like MS... IMHO

[JRW21]

Ok, guys I am trying to decide on engine management for my build and am having serious doubts about my original plan now that I am actually seeing a possible completion of my build. My original plan was to run with VEMS. However, lately I have been drooling over the ms3 pro and honestly I have damn near convinced myself that ms3pro is what I want to do. Any thoughts?

[wazzu70]

So people who are running megasquirt what resistances and temperatures are you using to calibrate your coolant temp sensor? I can't find the correct information and I am pretty sure I set mine up wrong

Its just a standard Bosch temp sensor. The resistances and correlating temperature values are in the Bentley manual.

[jntar]

It is 85 in 3 step increments.

[ccsdo5]

Does anyone know the proper torque specs for m42 arp head studs? I can't find them anywhere online and arp wasn't able to help either.

should be 85 ft-lbs iirc, I'll check later tonight on the sheet that came with my head studs.

[Balleristic31]

Does anyone know the proper torque specs for m42 arp head studs? I can't find them anywhere online and arp wasn't able to help either.

[gearheadE30]

Varg, if you're after anything specific, let me know and I can donate to the cause, or add information on my setup. I have most of the information around, but haven't really gotten around to compiling it yet.

[aintnothang]

I'm currently working on a guide to using megasquirt on an M42, based on my setup, with the goal of consolidating the info for others to use. It's not a priority because I have school, work and the work that needs to be done to my car, but it should be done by the end of the month.

This would really help me out. Awesome.

[e30polak]

I'd be really interested to see what your car could do on E85, with more fuel, stock CR built bottom end, and a GTX3071 or GTX3576

[ccsdo5]

So people who are running megasquirt what resistances and temperatures are you using to calibrate your coolant temp sensor? I can't find the correct information and I am pretty sure I set mine up wrong

[Northern]

With all the extra boost-related capabilities of MS2, you'd be well off making the switch.

[SpyroE30]

Are there any flash tunes available? I understand Tune is most important... tuning is the most complicated part for me. Or should I just buy the parts for Megasquirt 2 (Thats what a friend suggested)