New member looking to run MS2 with itb's porsche 911

[matty74]

Hi Fella's,

I'm new to this forum I'm located in Sydney Australia.

I'm doing an engine build for my 1974 porsche 911, the motor is a 993 3.6, which is being converted to a 3.8 with PMO independant throttle bodies & twin plug.

Rather than going down the motec or elecromotive line, I like the idea of doing the DIY job, I am a software developer by trade so reasonably technically competent, this will also get me more involved with my engine build ( I have a master porsche tech with 40 years experience doing the build).

So my question is to those guys out there (I am a pelicanparts member with the same nik) with porsche motors who are running MS2,

1. what is it like to set up
2. will it run itb's and twin plug.
3. Can I run a pair of MSD's
4. can I run tach of the pulley? or do I have to run of the flywheel?
5. setting up the harness, is it hard.

Anyway any advice apprciated


cheers

Matt

[Matt Cramer]

Dual plug with a pair of MSDs shouldn't be too hard; just wire the white wire on both to MS pin 36. You can trigger it off of one of the following:

1. A six tooth distributor wheel
2. A three tooth crank wheel
3. A missing tooth type crank wheel, such as a Bosch 60-2 trigger wheel or Ford style 36-1 wheel.

[matty74]

Cheers Matt, what parts should i buy, first up apart from the un-assembled kit, harness, stim, relay board etc..

[Matt Cramer]

I'd typically start with an MS2 V3.0 kit, either a regular or JimStim kit (the JimStim can, among other things, duplicate the 60-2 crank wheel), and relay board kit. We also have a MegaSquirt to relay board cable and wire bundle, as well as a DB9 serial cable to connect the MS to your laptop. You'd also want an IAT sensor and a sensor for either your cylinder head temperature or oil temperature. A wideband system would be useful for getting your car in tune - we typically use the Innovate LC-1, but it will also work with other sensors (AEM, Zeitronix, etc).

[matty74]

Can I run sequential injection with the MS2 software? I can get a camshaft sensor kit that can tell MS when the valves are opening, just wondering if MS2 can do this

[Matt Cramer]

Not on a six cylinder - the processor doesn't have enough hardware timer outputs for that, even if there were code to support this.

You will, however, be able to upgrade the MS2 to an MS3X to add sequential injection later on.

[matty74]

when is MS3 due out?

[Matt Cramer]

when is MS3 due out?

When the bugs the beta testers find are fixed. There's currently around 25 of them out "in the wild" being tested, although most of these are not sequential.