Welp I finally got back on the dyno today and compared injectors. I dynoed a few months back with the 5x13 or 14 (not sure what size still) injectors that I borrowed and tried out from Terry (CREWCABXLT) They are custom injectors that used to be in the Moonlight Pulling truck back when it was VE powered. I ran with the POD injectors in today and the 5 holers did make a little more power than my 4x14 POD injectors.

Made 386 hp 664 ft lbs corrected with the 5 hole injectors last time I dynoed
Made 363 hp 639 ft lbs corrected with the PODs today.

So The PODs don't seem to fuel quite as much but they seem very close on the street and I would still max at 50 lbs of boost with both sets. The pop pressures on the 5 holers are lower and they did run cleaner than the pods until max boost then they both were very clean. I still don't think you can beat the hp to money ratio of PODs though. I was expecting them to be close and only a 20ish hp difference, I'm wondering what more timing would do with the PODs though...

I didn't get dyno sheets today cuz the printer was screwed up but he said he'll save them and give them to me later, but I do have the ones from last time and some vids.

This was on the same indoor mustang dyno the Automotive Program has at the College I go to. Same dyno, ran 6 times each time and changed nothing but injectors since I last ran. And these were the highest numbers I got from both times I ran, I know it was a different day but the Corrected numbers show the difference.

and my simple KSB switch proved an easy 15-18hp on the dyno once again.

 

The POP pressure being different between the two sets of injectors can have a substantial impact on the results (basically changing the amount of fuel delivered). How big a difference between the two set of injectors POP pressure?

How much was the correction factor for each day?

What were the weather conditions for the two different dyno runs?

I'm not trying to give you a hard time or doubting your results. These things matter though.

 

PODs are what 260 bar? and these 5 holers are less, I'm thinkin 245ish, I can't remember what Terry told me. Maybe he'll chime in, he said they would advance my timing a little bit though which makes sense.

as far as the correction factor, I do not know, and not sure if they really knew, the noncorrected numbers for today were 312ish consistently, not sure on tq though, he didn't write that down and I don't have the sheets yet to look at. The non corrected numbers with the 5 holers were 322hp and 553 ft lbs.

I'm still kinda confused with the correction factor, is it a percent? I just know that corrected numbers is what you would make at sea level or certain elevation with the right conditions, humidity etc.

Today was very cold, in the teens, and I'm guessing very dry since my knuckle skin is starting to crack, and not much if any snow on the ground. Last time it was much warmer I'd say at least 60ish degrees, but don't remember how humid. It was the end of September. But it was an indoor dyno in a big warm shop. I told him to put everything the same as last time and that only thing I changed was injectors to see difference.

They may not be exact but both being corrected the same (I think) I figured they'd give a good idea of the hp difference.

 

Did the moonlight truck run a 14mm with the 5x.014's?

 

what were the egt's on both runs?

 

nice work austin, results are what we expected, im 90% sure they are 5x.0013. i had them set at 245 bar. on the moonlight truck he ran a 12mm pump. they run clean and i got them cheap but i would still recommend pods to anyone. best injector for the money. a timing bump would have helped a little with pods.

 

Thanks for lettin me try em Terry. I could still peg 1500 degrees with either set on the dyno if I held it long enough. The PODs do seem a bit longer to cool down though with my turbo cooldown timer.

Already got my pump jumped a tooth, and the pump is actually moved back from factory marks right now. I tried goin more but it would either sputter or try and runaway if i put it past the marks. I think I need a little less fuel screw and a little more timing.

 

I am no expert but the cold weather you dynoed in today added a few extra HP compared to the last run. In my past experience with my old turbo car it would make 20-30 more HP when i ran it on the dyno during the winter with the same set up. Not sure how much are trucks are affected but its the same principle, cold air is more dense so more air into the cylinder thus creating a larger explosion.

 

that would make sense, but I was indoors, warm shop temperature.

 

noting your uncorrected numbers, you must be losing a lot of power through that transmission...

 

still workin on that, just gotta pay for the converter for my 47rh then its swap time. This 518 never misses a beat though

 

I can't remember who it was but someone on here dynoed their mess and got similar numbers to your uncorrected numbers. Then swapped in a 47rh and was just shy of 400hp. I think it went from about 320 to 393 or something. Pretty crazy.