I'm curious to see if anyone has done step-by-step mods and dyno runs after each one. Example: stock, air filter mod, exhaust system, tuner, etc... to see specific gains from each mod. I have been reading about tuners here and on the various internet ads and can't believe that it's possible to simply buy a chip and plug in 150hp.

 

150 hp, not on a 7.3

That being said....with no supporting mods at all a 140 horse chip is capable of making 80+ hp over stock, but you're rolling the dice not knowing what kind of temps that chip is laying down.

 

The stock 2002 truck puts down about 210-215 RWHP. I put down 100 over that with all the "common" mods. I now have changed turbos, and some other stuff, but without injectors or HPOP change, I wouldn't expect much more than that...

 

About a 100 rwhp gain is possible with just a chip. We see it all the time.


Here in Colorado we are going to have a dyno day coming up in the near future. I have yet to put my truck on the rollers, but I'm shooting for 350+ hp on stock injectors. I guess we'll see if I actually hit that mark. My 1/4 mile times at the drag strip seem to indicate that I'm in that power range.

 

Intake, Chip and exhaust will net 300-320RWHP... I doubt anyone has done a one at a time dyno test...