I am trying to add some performance to my truck, and need some help. I bought a used 2002 F-350 PSD with a 7.3L Diesel engine and is a Dually. I am running into what I think are some upgrades to the truck, but I don't really know for sure.
I started with the exhaust, because the old one was rotting out. I put a single stack on it. 4" turbo back, no cat, no muffler, 5" exit to an 8" single stack. Now I'm working on getting some air into the motor with a DIY intake. I'm thinking that a better HPOP should be next.
Anyhow, I am sure that the auto trans is a 5 speed, and it seems to shift hard, like it has a shift kit in it. Is a 5 speed stock? I am asking because it has a metal Jasper rebuild tag on it, and the case says A400? Is that trans. stock? I found the old sticker, and the previous owner appears to have requested a 4:11 rear end,
and the RPM @ 70 MPH is about 2800-2900, does that sound right???? The turbo has Garrett on it, is that a stock turbo????
I am looking to get a good mix of performance, and mileage of course, but I am just wondering where I'm starting from????
It seems that if i have a good turbo, that I can tell the guys at DP Tuner what I have, and the same with the trans...
Maybe I already have a chip in it, and just dont know.
Any help would be appreciated.