best injectors for IDI performance?

[96powerstroker]

i am about to inquire a IDI and i wanna pull the stock old injectors out and stick some new bigger sticks in. who makes the best overall injectors for a fair price.

[jdkl81]

That's a loaded question that has been controversial on other forums. The thing is it may be that NMB2 and Racin and some of these guys here are breaking new ground with more power in the IDI engine but up until now the conventional wisdom has been that most people can't or won't build one that can sustain much over 200 HP, as a result there aren't a bunch of choices like with your Powerstrokes and Cummins. As far as I know the only really reasonably priced ones are Stage 1s from Ken at DPS. They have a bad rap on another forum but from what I've seen it's undeserved, Ken wants $36 each plus acceptable cores or about $64 each to buy them outright. Mel Agne is working with a builder to develop "Moose Misters" and the people that have bought from him are very loyal to him, the only drawback is they are PSD performance injector price without a comparable return on investment powerwise. They have the advantage of a nice spray pattern, but some very smart people like Ken and NMB2 think the spray pattern is not so important in an IDI like it would be in a DI engine since we have the precup and piston cutouts to help atomize the fuel. You at least need a turbo to even think about either of these performance parts and in my opinion a really hot pump would help even more with the fueling and timing curves shifted so that your pump doesn't retard the timing as early as a stock pump and keeps the engine pulling right to the redline. Best of all worlds is you'd have a really nice pump and better injectors and you'd at least have a turbo kit with all the restrictions removed and an intercooler or water injection. Keep your expectations reasonable and you should be thrilled with a better than stock fuel system on any turbo and especially turbo +intercooled truck.

[96powerstroker]

yea the truck turboed it pushes 15 pounds of boost. it a 84 6.9 so i think it a decent block. i was just looking for something that reasonable cheap and better than the stockers

[88 Ford]

I have Dps injectors that are pushed by a Moose pump on my truck and it seems to make pretty decent power with minimal smoke. I like them quite a bit. Also Moose Misters are more expensive like was said before but I do know that Mel has his guy working on some that are supposed to be cheaper after they are done but that will be some time in the near future.

[jdkl81]

Is your engine studded yet? I don't think I'd go Moose or DPS before I got that done with that much boost already. It may hold, it may not, but it is considered risky to boost more than 12 psi on 6.9 headbolts consistently.

[88 Ford]

Granted I have a 7.3 which has bigger bolts but mine has done pretty well with 15psi and the extra fuel. I'm not sure what boost is safe on a 6.9 compared to a 7.3 though cus its debateable.

[jdkl81]

88 you're right, I'm not saying that the 6.9 bolts won't take it, if he's used to the PSD 15 doesn't seem like a lot, I just wanted to warn him that many would say he's playing with fire, other people like 82F100SWB have run a lot of boost on stock bolts. I have boosted 12 psi with no incidents so far.

[96powerstroker]

yea im used to pinning the boost gauge at 30psi on my PSD. i have no idea how much i pushing cause i cant find a cheap boost gauge that 50PSI anywhere. yea ill probably get studs then go for injectors.

[96powerstroker]

i anit shooting for like 400hp or anything just since it kinda free a decent old truck that will make ok power and still be relative cheap . im not sure if it a auto or a stick but im hoping it a stick. it a 4x4 with 65k miles on it.

[96powerstroker]

how much power do u figure i be making with injectors and a turbo and all that kinda stuff tuned decent. trust me im not looking for them to light the world on fire