I have an 03 Dodge cummins 5.9L. It has a smarty on it, as well as a banks ram air intake, and their monster intake elbow. It has a 5" exhaust to a 7" stack. The truck has good power, and runs reletively cool (1150* max towing level 9 on smarty). However, I'm not satisfied with my torque pulling up hills and such. I have an aftermarket clutch coming from southbend rated for 650hp. Now I know I need to upgrade my supply pump, however I was thinking of getting new injector nozzles before it gets too cold out (I live in Minn.). I wont pull the trailer much until I upgrade my supply pump. My question is: if I were to go to bigger injectors, which later this winter will be joined with an aurora 300 turbo from ATS, would 90hp injectors be too much juice? I dont want to have to baby the truck all the time becuz of EGTs, but being on the edge of 1350-1400 every now and then doesnt bother me. I was thinking about 120's but I'm thinking they will be too much. I wont more power but I dont want to have a ticking time bomb on my hands either. So what do ya guys think, will 90hp injectors with a new turbo work good together towing? like I said I have to beat the snot out of the truck now pulling to get to 1150, and Ive only seen it once. 1100* is average for a HOT temp.

Thanks for the replies..

 

your towing on SW9 with a stock clutch and not slipping it? also with a stock turbo towing sw9 max of 1150*? where is your egt probe?

90hp injectors are plenty very easy to make the 650hp limit of the clutch with those injectors also 90s are fairly easy to keep cool

imo 120hp injectors are comp only

 

It slips it at low speeds during accel. only. My EGT probe is at the lower end of the exhaust manifold about 2" up from the turbo below the back pipe.