Our family company has had this 1999 mitsubishi fuso 12ft box truck for about 5yrs. it has a 5speed and a 4cyl turbo diesel engine. We use it to pick up parts and also to pick up thousands of pounds of sheet metal that we use when we don't have it shipped to us. I'm trying to figure out how to squeeze some more horsepower out of it so that when it is hauling heavy steel that it doesn't act like a dog all the time. the stock turbo is a TD05 which sounds like a common small turbo. the downpipe and exhaust on it is only 2 1/2 inches and there is no cat.
Stock engine output is: 145hp @2900rpm
Now the thoughts:
Would putting something like a 3 1/2 or 4inch custom dp along with some aftermarket exhaust free up some tq and hp?
What kind of bolton turbo could I replace the tdo5 with to give it more power without modifying much of anything else.
Is there any programmable kits for this engine?
thanks,
Paul