Congrats, permagrin is rampant in Cali right now...

 

Wow -- this is an oldish thread... I know for a fact that 238s will easily get you over 450. I'm right at 450/1000 with mine, but I'm still running a van turbo, so I need more air. A 38r or H2E would get me to 500, assuming the stock PMR block held together.

 

What about 250/200??? Ive got all the other knowledge (I think) for our engines covered but injecters are still something I dont fully understand. Can someone elaborate in "idiot" terms for me please

 

The nozzle size dictates how fast the injectors can "empty" so to speak. The larger the injector, the larger the nozzle needs to be to allow the full amount of fuel to be pushed into the cylinders. With my 238/100s, they provide PLENTY of fuel, and I'm quite sure would get me over 500 if I have the air (and block) for it. What power levels are you looking to attain? 250s will get you up in the mid to upper 500s I'm sure, if you have a block built to handle it.

 

I was looking to be around 500 or more but I realize how much it would cost to get me there, funds I dont have now. I realize the price difference for 450HP and 550HP is massive so that will be the deciding factor. I have a list of all the things I need to get to those power levels, its long and pricey. You said PMR block are you refering to the block itself or a gridle, rods and so forth that could be done to strenghten it? I dont want power levels so high that Ill have to fill the block and not be able to drive it whenever I want. I have plenty of time to wait and figure out the "REAL" power levels Id be happy with

 

Exactly my thinking, John... I'd love to be at or above 500HP, but for me, going and hotter than set of stage-2's is a pretty significant jump in price. Yeah, I know I could do hybrids, but I would rather not for personal reasons.

 

One of my biggest problems right now is I dont have AE yet and I still have the 3:73 gears and 38s. My thinking was... Ill see how it goes.... yeah.... she dont go no where fast lol. I dont know what that equates to as a final gear but it cant be good, 4:30 gears went from mid range of the list to the top.

 

I know 4.10's and 35's are the same as stockers and 3.73's. Clay has either 4.30's or 4.5X's on his truck with his 37's or 38's and I think he said that it's about the same as stockers and 3.73's as well. Not sure, though...

 

Yep 4:30s with 38s are as close as I can get to 3:73, I thought about 4:56 but I drive it every day and the extra mpg is always nice, but its an 8000 pound tank, it is what it is

 

Yes it is kinda old. Its the closest I could find trying to search. Clay told me the 238/250's were basically the same thing. Some info from FF/Casserly's:

238's:
"Stage three reman performance injectors to increase the performance and horsepower of your powerstroke diesel. The injectors in the 94-97 Ford Powerstroke will increase horsepower up to 5oohp at rear wheels with a custom performance chip. In the 99-03 Powerstoke diesel you will have to run a custom programmed chip to make the transition from split shot injection to the new single shot injection. Horsepower increases up to 500hp and mileage increase from the more effecient single shot design. These injectors have new nozzles and tungston coated plungers and barrels. The larger 100% or 200% over size nozzles allow for better control of fuel delivery during the combustion cycle with allows for the added horsepower over the stage one injectors. The larger hybrid plunger and barrel in these injectors move more fuel for the same stroke as the stage two injector. These hybrid injectors are designed to operate with stock High Pressure oil. This is optimal for the 17 degree HPOP. This saves money on a new HPOP system by utilizing the system you already have. Built and flowed to within 1%. Please contact us for a list of approved custom chip tuners in your area. Come with an outstanding 18 month warranty. Complete set of eight. Core charge required.

250's:
"Stage three reman performance injectors to increase the performance and horsepower of your powerstroke diesel. The injectors in the 94-97 Ford Powerstroke will increase horsepower up to 525hp at rear wheels with a custom performance chip. In the 99-03 Powerstoke diesel you will have to run a custom programmed chip to make the transition from split shot injection to the new single shot injection. Horsepower increases up to 525hp and mileage increase from the more effecient single shot design. These injectors have new nozzles and tungston coated plungers and barrels. The larger 100% or 200% over size nozzles allow for better control of fuel delivery during the combustion cycle with allows for the added horsepower over the stage one injectors. The larger hybrid plunger and barrel in these injectors move more fuel for the same stroke as the stage two injector. These hybrid injectors are designed to operate with stock High Pressure oil. This is stretching the limits for the 17 degree HPOP. This saves money on a new HPOP system by utilizing the system you already have. Built and flowed to within 1%. Please contact us for a list of approved custom chip tuners in your area. Come with an outstanding 18 month warranty. Complete set of eight. Core charge required.

 

Thanks for that awesome info

 

My stock 17 deg pump holds over 2800psi on my hottest tunes with my 238s. On stock injectors, I was dropping below 1800. In fact, after putting in these injectors, the pump sprung a leak at the "non-serviceable" plug. Which makes sense since it was seeing 1000 more psi than previously...

 

I still haven't found the difference between the two. I think the 238's are in my future, they will put me right where I wanna be.

Do you know if DP has a preference between FF or Rosewood for tuning. Both seem to have a good reputation...

Joe, of all the brands available why did you chose FF/Casserly?

 

250s flow 5% more fuel (250/238) than the 238s, when configured with the same nozzle size. Not coincidentally, possible power increases are up by 25hp (5% of 500hp, 525hp vs 500hp), when used with appropriate tuning & supporting mods. However, based on the text above, it seems 238s are slightly more optimal for use with the stock 17* HPOP vs. the 250s, which it seems can be driven with a healthy stock 17* HPOP, but is starting to stretch the limits of a healthy stock 17* HPOP. So if 238s meet your needs, it might be slightly better to opt for those.

I believe DP sells the FF/Casserly injectors on their web site, so if you plan to go with DP tuning, I would probably suggest the FF/Casserly injectors, though I am sure Jody (and the other tuners as well) could make a tune that would work fine with either.

 

I chose Cass for two reasons: people whose opinion I respect highly recommended him, and I got a hell of a deal on them through Clay (before the big price drop )...