How much H.P. do RV275 injectors add to a 2001.5 High Output engine ?
I've heard 35 , 40 , and 50 . Any real data on this ?

 

Stock injectors Dyno around 200hp to the wheels, RV's i've heard dyno 235 to the wheels.

 

Well I 've decide not to mess with the pump tap , so I'm
going with Mach 1.6 or DDP 75 injectors. Just want the
best power and least Heat / Smoke. Then thats it, I'm done.
Going to drive and have fun towing the camper.

 

Do you have any torque numbers to go with that. Normally if you get 35hp you shoud get ~70 ft lbs true or bull.

Thanks

 

Bottom line is stock for a 99, which was rated at 215hp from the factory, and gets about 199hp to the ground. The next line up is the RV275s (+ 25-30hp), then on up it goes with other injectors. Like stated above, they're worth about 25-40hp depending on the truck (215hp, 235hp or 245hp stock), and about double the added hp in tq. (~50 - 80tq increase). I like mine.

**Note, this dyno plot is just a pic I have on file, not from my truck.