Join Date: Jan 2012
Feedback Score: 0 reviews
Here is my thoughts on this and I am far from an expert.
If you stay with the stock volume injector you can only inject that amount of fuel no matter what size nozzle you go bigger with. So with a 140 cc injector at 2hp per CC you are going to max out at about 300 hp with the stock nozzle and your power will be in the lower rpm's. As you put the bigger nozzles in you will gain more power but at higher rpm's as you can inject that about of fuel in less time of rotation of the crank. As in less Pulse Width.
If you go with bigger injector volume as in a 180 cc injector you gain more hp because of the 2 hp/cc.
But you can start to run out of time to get it injected in time as in how much pulse width you can safely use.
Thats why you need to get bigger nozzles when you go to bigger volumes.
A 180/30 will be about as good as a 238/80 because of the 7 to 1 gain vs the 5 to 1 gain on the hybrid. Since the hybrid has less push behind it it needs a bigger hole to get the same volume in the same amount of time of injection Or pulse width.
But there is a lot more to it than this.
I have not done injectors yet in my 02 6spd manual yet as I am still undecided between which ones I want to go with yet. I have always wanted the 180/30 because mine is a tow rig only and I want fuel mileage a good pulling motor. But everyone tells me to go with the 238/80's if you are going to spend the money.
So then I think you should just go with the 250/100 and be done with it.
All the newer diesels go to higher injection pressures to be more efficient
02 F350 Lariet CCLB 4wd Dually 7.3 6sp M. 122,000 miles, Manual hubs and transfer case.
Stock as of yet. So far have bought
4" MBRA turbo back with muffler
GTP 38R BB turbo and WWII wheel and high flow housing, Non EBV pedestal, Adrenaline HPOP.
New IH up-pipes, Aluminum intake plenums, 203* Therm with aluminum housing, Boost relief valve, all new boots, FPRx and HPRx. Coolant and Trans Filter kits. Max AC Assist control Valve. 8 gauges,
Boost,Pyro,Fuel,HPOP,LPOP pressure. Water,Oil and Trans Temp. Need tunes and injectors yet.
03 26' CM 4 Horse trailer and 25' GN flat bed.
06 F-350 Lariet CCSB SRW 4wd Auto 6.0 78,000
miles. Atlas 80 with Ed's lifetime, Blue spring, MBRP 4" turbo back with muffler, Bully Dog for monitoring. So far no problems.