MCI 7 8V92 Cooling

[bigred]

Back when I was driving in the 70's,never gave a thought to the temp gauge on those old 3751's and Scenicrusers .Of course we got paid to drive and that was pretty much what we did.Been a long time ago but to the best of my memory ,I don't recall a heat related blow up.

[chessie4905]

We mostly use larger injectors than they did more fuel, more heat. Also fairly new and well maintained cooling systems.

[luvrbus]

MCI has always kept the HP in check to prevent heating you still come across the MCI's that have a 8v92TA set at 365 hp and Greyhound never used a injector in the 8v71 larger than a C60

[lostagain]

Also the fact that back then, we were taught to drive them "on the governor". Lugging them was a sin. We always run them up to the governor, then shifted up. Same thing down shifting: when we got down to that speed that was right for down shifting, out of gear, put your right foot to the floor, and slide it in the next lower gear. Didn't matter if it was uphill, flat, or downhill, those 2 strokes were revved up, like they are meant to be. It was a big adjustment for me when I started driving 4 strokes in buses and trucks, to shift at or below 1200 rpm, far away from governed speed.

JC

[edvanland]

I also forgot to mention I had previously had the same friend build me a trans cooler. I got a oil cooler from a GM bus form Luke and put that in line with the standard trans cooler but he then put in a total independent radiator system using a radiator and pump from a race car with its own electric fan mounted to the left side lower door to the engine. That way the trans fluid went through a cooler before the engine radiator.