Customized Fuel Pumps Boost Torque/Horsepower

Customized Fuel Pumps Boost Torque/Horsepower ENGINES Tell Forest Cunningham what torque range or power you want from your diesel engine If it can be done he will customize your fuel pump to give it to you Cunningham started working on Cummins diesels 30 years ago and now works with all brands With rebuild customers across 6 states there aren’t too many engines he hasn’t worked on “All the parts are out there ” he says “Ninety percent of parts used even by tractor and truck pullers aren’t custom machined You just have to know what fits what and how to calibrate it ” That’s not to say that Cunningham doesn’t machine parts when needed Currently he’s working with a farmer who wants to boost his 300 hp Steiger tractor to more than 1 100 hp “He sends me the parts and tells me what he wants ” says Cunningham “I had to use parts from an engine that develops close to 2 500 hp and machine them to fit his fuel pump ” Cunningham likes the older mechanical systems for their versatility and ease of customization Older engines also aren’t required to meet today’s emissions standards “You can change the injection timing and/or the torque curve to produce a stronger more fuel efficient system ” says Cunningham “For off-road uses with new electronic control EGR engines we have to delete the EGR system to help improve fuel efficiency ” Cunningham is hard to argue with when it comes to what is good for engines He’s the regular mechanic for a lot of over-the-road truckers who put hundreds of thousands of miles on each year He describes engines with 400 000 miles on them as “babies” especially compared to Howard Clayton’s 2000 Dodge Ram 3500 that was featured last year in FARM SHOW Vol 35 No 2 Cunningham services the pickup every 10 000 miles It had 1 7 million miles on it at the time of the article Soon after major work had to be done Cunningham rebuilt the engine replacing pistons cranks and bearings “Clayton’s truck now has 1 850 000 miles on it and is running fine ” says Cunningham “I think he’ll get tired of driving it before it gets tired of running ” Contact: FARM SHOW Followup Cunningham Performance 13555 N Frink Rd Hallsville Mo 65255 ph 573 881-4867; www c-hamperformance com

To read the rest of this story, download this issue below or click here to register with your account number.