Megasquirt V3 on 4G63

All technical questions and answers regarding starions, being modifications to maintenance.
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Station
I like starions more
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Megasquirt V3 on 4G63

Post by Station »

Anyone done this, or even heard of it done?
1987 Mitsubishi Starion 2.0 Turbo RHD with 88 - 90 engine (?), manual gearbox (MAP Sensor'd).
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4gpwr
I love starions
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Post by 4gpwr »

Water inj ?
4Gs Rule
OLD FART
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Post by OLD FART »

[quote="4gpwr"]Water inj ?[/s use quote]
I think it is the aftermarket EMS computer the Yanks use on their 2.6 engines
I've had mine since 03 07 92
85 JB 2323cc DOHC 4G63
THE OLDER I GET THE FASTER I WAS
GROWING OLD IS MANDATORY GROWING UP IS OPTIONAL
redzone
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Post by redzone »

find a dyno tuner near you that you want to use and then get the aftermarket computer they recommend :)
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RiceThief
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Post by RiceThief »

Theres a whole forum dedicated to the megasquirt on the starquest forums.
Starions are a disease, the only cure is poverty.

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enthuzed
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Post by enthuzed »

For those who don't know, it's a kit ECU, as custom as it gets. IF I remember correctly you have to make your own printed circuit board and buy the components and put it all together yourself.
I've checked out a motorsport mate's car that had one fitted.
Guaranteed to have lots of "learning experiences" going this way, and whilst the megasquirt forum has lots of information, you'll be troubleshooting this and replacing components inside it yourself. Pretty full on exercise which will gobble up all your spare time...
I considered this a while back, looked at the costs to build it, then the box and the additional bits you need to run it, then looked at who would know how to tune it (pretty much a DIY process as well). I figured it was also a good idea to have a second one built that could be swapped in - and at that point for me I pulled the pin on the whole idea.
You'll learn a lot and if you've got time to tinker with it it'll be quite fine but I just want to know that it'll work - I couldn't be stuffed with trying to fix it nor get it to work if it didn't.

If a good aftermarket one plays up you can swap it under warranty. And the costs are not that far apart when all said and done...
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