Many diesel engines were equipped with a small vacuum pump driven off the belt to provide vacuum for accessories. I suspect that some manufacturers may have also used electrically operated vacuum pumps and if you are trying to retrofit a vacuum pump...
Are you sure that the cooling stack is really clean? Often you get a lot of debris buildup between the condenser and radiator. The HD trucks are well known for this issue after a few years and although you don't have the additional intercooler of th...
Caterpillar released a performance guide in 2006 that does a good job of explaining horsepower requirements for different motor coach operating conditions. Do the HP to KWH conversion from their data and it shows that this hoped for motor home is go...
And keep in mind that a lot of current gas powered engines need 89 or 91 to provide rated power and economy even though they can operate on 87 via audible knock sensors which alert the ECM to use the low octane map. My Corvette Z06 wants 93 octane w...
