MP36PH-3S and MP36PH-3C

What are the similarites and differences of the MP36PH-3C and MP36PH-3S? Are these locomotives Caterpillar powered? Which locomotive does MPI use for the frame and trucks? Would Motive Power Industries build 6 axle 4,000 horsepower freight versions on SD50 or SD40-2 frames if asked?

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The main difference between the two locomotives is that the -3S has a static HEP plant (a HEP alternator driven off the front of the prime mover), and the -3C has a Caterpillar gen set HEP plant. Also, the fuel tank on the -3C is smaller, and the -3C uses some remanufactured components (like truck frames, cooling fans, traction alternators), while the Metra -3S was built with all new components.

The frame is a proprietary MPI design, built brand new - not a remanufactured frame.

MPI would probably engineer and build anything that is practical, providing they have a Purchase Order.

"Would Motive Power Industries build 6 axle 4,000 horsepower freight versions on SD50 or SD40-2 frames if asked? "

Why would anyone want to do that for though? And I doubt anyone can answer that, MPI would have to research it and make a decision if someone decided for some reason they wanted their locomotive built on a 30 year old frame. For enough money, you probably could even put it on a SD9 frame, but who would want to do that?

Here we go again----TerryC dreaming up questions to ask on this forum....

Thanks for the info tominboise. I thought MPI reused a frame instead of making a new one.

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Metra MP36PH-3S is also equiped with EPIC II Air Brake System. Caltrain MP36PH-3C is equiped w. 26L CS2 I guess.

Are the Caltrains one just as bad as the metra ones man its bad ween u need a f40c to come and get a mp36 and the mp36 was the so call replacement for the f40c

According to comments on Metra forum, MP36PH-3S are not that bad..

I dunno, you might want to check back on the Metra forum. The only guy there whos opinion is actually "true" is bones, and that's because he's a Metra engineer. He doesn't like the new engines, for a variety of reasons. The MP36s seem to be unreliable, too. If there's a train delayed due to engine trouble on the Metra system, more than likely there's an MP36 on the point. That's something even a casual rider can figure out.

ok i know people that work for metra anyone i know hates them there told me all there do is brake down so