Posted by David G on August 17, 2018 at 16:53:43 from (209.181.208.169):
The MH44 EFI runs real good, needs some cold weather tuning.
I would not leave the O2 sensor on once tuning was done, pops the cost up about $400.
I would like to make something that bolts on where the Zenith was, tired of all the harnesses and mounting, it is just to much work to mount all that. I really liked the picture that was posted of the integral unit.
I would make the throttle bore bigger, and make a reducer that slides in to size it according to the engine, no sense having huge throttle plate on small engine. An original throttle plate would then be used so it matches the reducer bore.
I do think it is better to mount the fuel injector upwards in the manifold, this reduces the problem with cold manifolds and icing.
I would almost be tempted to mount the fuel pump in the tank.
I used the Microsquirt ECM, but I think I can do the required functionality with an Arduino, at 1/10 the cost. The tuner studio program I use has a build for the Arduino, so user interface would be the same.
My goal would be cut the cost from $1200 to $500 and include spark control.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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