Can anyone tell my which is better for my Sierra Cossie?
Megasquirt 3 or 034 Motorsport?
I am going from 380 hp to appr 500 hp.

 

can the weber ecu not cope with your needs?

 

Good question, I honestly don't know.
What can weber ecu do? I need to live map my car, and I know many systems can do so. I can get these systems for a good price, so I just want your opinion on what is simply the best choose for my Cossie.

 

not soo much the best system, its what you do with it, megasquirt will do 99 percent of the things you require, as will the standard weber system, just its easier for the DIYer to map MS, of course you can spend much more money on other stand alone EFI systems that are "faster" and have more zones and a few more functions but im not sure its entirley necesary IMO, obvously a lot of tunning companys out there making a living on this game will tell you thier particular brand of ecu is the best for obvious reasons, but at the end of the day its you decision. If someone else is mapping it for you and they suggest an ecu then go with that, if you are mapping it then i would go MS.

 

Its also worth mentioning, it doesnt matter if its a 1000cc motorbike, lawnmower engine, v8, 2 litre turbo, or just about any piston engine, the ecu will work just the same, its only the figures you program into it that change the way the engine works.