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Old 04-05-2012, 11:52 AM   #1
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Default Upgrade MS1 to MS2 CPU

I understand some of the benefits of the MS2 over the MS1 CPU but am curious if it's worth the effort and what issues I may encounter.

Currently running MSnSE1 CPU with 029q IIRC and my i/o's should be the following:

PWM IAC
PWM Boost Control
Shift Light
Cooling Fan
Tachometer
2 Spark outputs
Launch Control
Typical 2 inputs from CAS

Things I would like to add:

Second IAT sensor
Speedometer
Knock input
A/C relay
Meth injection based on boost/rpm/temp/whatever

Believe I have completely exhausted the I/O's on the MS1 CPU and just want a few extras added along with the 16x16 tables. Anybody see issues I've overlooked? Don't have my diagram book in front of me at the moment so I can't verify for certain what is wired to where..
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Old 04-05-2012, 11:55 AM   #2
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You may want MS3; it has dedicated water / meth injection control. MS2 doesn't have a larger number of outputs compared to MS1.
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Old 04-05-2012, 12:06 PM   #3
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I thought about that Matt but I neglected to mention I have a v2.2 board. Is MS3 compatible with the v2.2?? Have tried to do some research on MS3 but the changes are a little overwhelming.
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Old 04-05-2012, 12:21 PM   #4
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yes.
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Old 04-05-2012, 03:15 PM   #5
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The biggest problem with MS3 on a V2.2 board is there's no off the shelf case, and the holes used for the standoffs to anchor the daughter card in place aren't there.
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Old 04-05-2012, 03:16 PM   #6
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Thanks guys! After some more in depth RTFM I'll look into DIY's MS3/3.0 board and build anew.
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