Picture for Tom Lvmci and the other MC-5 guys

bevans6 · May 08, 2014, 07:43:36 AM

Here is a picture of the manifolds I made to fit the Military 8V-71T into my MC-5C. I ended up with the turbo pretty close to the skinner valves so I relocated them to the same location but on the passenger side of the engine bay. That was the only modification I made to the bus itself.

Brian

lvmci · May 08, 2014, 08:23:31 AM

Very nice Brian! When I need some internal plumbing moved around, can I put the surgeon in touch with you? Lvmci...

TomC · May 08, 2014, 02:33:56 PM

Those military turbos are really big. I would wrap the exhaust pipes leading up to the turbo. Nice job-hope it fits! I run 7G75 injectors-do you know what injectors that engine has? Good Luck, TomC

bevans6 · May 08, 2014, 04:52:05 PM

It fit just fine, and ran great on the trip to Nova Scotia. It had N80 injectors but I changed them to N75 chasing a fuel in oil issue, I thought one might be leaking. The N80's had great power and prodigious smoke, the N75's have a lot less smoke and decent power.

Brian

Fredward · May 08, 2014, 07:06:34 PM

What about heat? Can you keep that beast cool? And how much boost does it make?

Fred

bevans6 · May 09, 2014, 02:34:22 AM

So far, about 1500 miles, it's stayed cool (180 degrees, same as before) with the stock radiator setup, which I think is in good shape. Don Fairchild told me the turbos were quite low pressure jobs and recommended a change to a more modern turbo. Maybe after I get happy with it again.

Brian

Here is a picture of the turbo side after installation and the exhaust pipe was added. I am using the stock muffler. Plan to substitute a low restriction muffler this summer.

shelled · May 09, 2014, 10:04:05 AM

Brian,

Been running turbos since Corvair Spyders and Corsas.

Upgrade by insulating pipes to turbo and changing to low restriction (or no) muffler.

The insulation keeps the heat up to the turbo -- heat equals more boost.

The turbocharger itself acts as a pretty good muffler and less back pressure equals more boost.

That's less expensive than a new turbo and should be done anyway.

These changes often have the side benefit of improving fuel mileage depending on how much foot you put on the accelerator.

edward