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Is megasquirt right for me?

Posted: Fri Nov 26, 2010 4:38 pm
by zmatt
I have a 2000 mercedes C230 kompressor. It has the 5G-tronic automatic transmission and has the M111 supercharged 16v 4cyl. As far as I know it uses Bosch efi. I've been researching tuning options and it seems if you want to make real power on this car you have to do custom work, Either get a bigger supercharger or ditch the stock one and get a turbo. Motec and AEM solutions are pretty expensive and a little overkill IMO. I know megasquirt works well with domestics, but what about a benz with modern efi? If i were to go megasquirt, could I interface with the stock senors easily? And what about the transmission? Unfortunately I don't have a GM tps and Ford EDIS on my side here. I've scanned the documentation and it almost exclusively refers to domestic automatics (dunno who would tune an 80's GM with a 4 speed). Also, before anyone brings it up, I live in kentucky and we do not do emissions testing of any form so there are no worries regarding any regulations.

Re: Is megasquirt right for me?

Posted: Mon Nov 29, 2010 11:26 am
by Matt Cramer
I've seen MegaSquirt used on a lot of '90s era Bosch Motronic EFI setups before, although not on this specific engine (it's mostly the BMW E36 guys). Does this one have the usual 60-2 (sixty equally spaced teeth except two consecutive teeth are missing) sort of crank trigger? There's a good chance you can use stock sensors.

On paper, the GPIO board can run up to eight speed transmissions. You'd be the first to put it on a Mercedes, though. Your other option would be to run a stock ECU. To answer your question about who'd work on these transmissions - most of the people buying them appear to either be swapping the transmissions into older muscle cars, or modifying trucks.

Re: Is megasquirt right for me?

Posted: Mon Dec 06, 2010 2:06 pm
by zmatt
Thanks for the reply

I'm not sure about the crank trigger. I'll have to look into that. are the motronic ecus tunable? I was under them impression that aside form chipping them, they were not and you would have to use an aftermarket ecu.