Brake Specific Fuel Consumption. It's a measure of efficiency, telling you how much fuel the engine must burn to make a certain amount of power.

In this case, it means the CTD burns .38 lbs of fuel per horsepower per hour.

So it would burn 3.8# of fuel making 10hp for one hour, or one hp for ten hours.

The lower this number is, the more efficient is the engine. .38 is pretty low-- gas engines are typically in the .45 range or worse.

jh

 

I understand what you are syaing. My point was that many folks in the manufacturing side will say the GPH flow rates are needed as the pressure increases, GPH drops.

But I am with you. There's only so much fuel at any pressure you can push through the system.

Dave

 

Thanks for the informative post brett. Interesting design for sure.

 

I've had a RASP on for ~128,000 miles now. Still with the orginal belt.

Paul

 

Thanks Paul, and everyone else who chimed in without drama.

I have an airtex pump I got from O'Rielly's that looks good. I've read a few positive things about them on here. It says it's a re-designed pump, it's a different shape than the p.o.s. carter pumps I've been using.

Also, the pump is surrounded in a rubber isolsting material I assume to help against vibration.

One problem,, I have already moved my lp with a vulcan big line kit,, and the fittings on the airtex pump just wont work with it, and my local napa couldn't find me the right ones so I guess I'm screwd for a couple days.

 

I think I will start saving for one of the belt drive systems, I just don't trust any of these electric ones anymore.