Cat peec engines

No one I know still runs one that has the electronic controls on it, most have been converted. They are fine when they are right and will run right along with there full mechanical counterparts, but when stuff starts going wrong trouble shooting is a nightmare.

 

I run one for a bit last summer, was set at 425 but run like it was about 200hp. Truck was checked out at a couple cat houses and everything checked out good. Truck never threw no codes or anything. THe only thing I can say about that thing is it got good mileage. I've seen a few of them that had the hp bumped up but only one of them ever ran worth a hill of beans. If it was mine it would be converted to full mechanical.

 

I would say the new nozzles accounted for a lot of that increase. The timing that the 460 uses prolly brought the torque up too.

 

Anyone tried EVRY mod trick or boost sensor trick on those PEEC Cats? Boost sensor resistor worked fine with EDC controlled Bosch P-pumps and EVRY with electronic Bosch VE rotary pumps. Cat pump electronics can't be much different.

 

1970 sounds a little far fetched....maybe 1709? Not bashing, but even the true 460 was only rated at 1650 ft/lbs. Thats great if she's actually pushing that much.

 

The system used on these is weird, I dont think there is a way to fool it, the sensor is in the governor control housing. I dont know that even if you could wether or not there would be any gains over a full mechanical as the pump internals are the same.

One thing I would like to see if I could get accomplished is a manual control for the timing advance they use, like controlling it with a potentiometer, this would be for competition use only though.