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Old 04-26-2007, 05:36 PM   #1 (permalink)
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305hp vs. 325hp injectors?

I have a 305hp truck and was wondering if injectors out of a 325hp truck will work in my truck?
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Old 04-26-2007, 06:31 PM   #2 (permalink)
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as long as its a 24 valve ctd it should
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Old 04-26-2007, 06:34 PM   #3 (permalink)
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So I could put the 305's in my 250?
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Old 04-26-2007, 06:39 PM   #4 (permalink)
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i really dont know how much this would help out but do you think 50 horse would do that much to the SO
i really aint sure i was looking into stick and if this is possible do i need to get aftermark 40hp sticks?
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Old 04-26-2007, 06:42 PM   #5 (permalink)
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I dunno, I turn my predator to the 60 hp+ tow tune, and I can feel a huge difference...I happen to think the SO's are pretty respnsive to things like this.
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Old 04-26-2007, 06:45 PM   #6 (permalink)
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i dont know i would really like to find out becasue if so then i am going for it.

but yeah you only need like 40hp to tell a difference
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Old 04-26-2007, 07:06 PM   #7 (permalink)
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Quote:
Originally Posted by bigpatten86 View Post
as long as its a 24 valve ctd it should
Anyone else want to confirm this for me?
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Old 04-26-2007, 07:10 PM   #8 (permalink)
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As far as I know they are the exact same injectors, it is the programming that is different between the engines. You won't gain anything but anger cuz you didn't gain anything.

The factory injectors are capable of quite a bit of power over stock.
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Old 04-26-2007, 07:19 PM   #9 (permalink)
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Quote:
Originally Posted by justinduke View Post
I have a 305hp truck and was wondering if injectors out of a 325hp truck will work in my truck?
I dont believe they are the same.
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Old 04-27-2007, 12:07 AM   #10 (permalink)
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I asked the shop foreman about the HO motor the other day, and he said the 305 vs the 325 HO are the same motor, tip to tail, except for the stock ECM programming. I could have mine reprogrammed per stock to a 325 HO motor for a few $$.
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Old 04-27-2007, 01:08 AM   #11 (permalink)
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Quote:
Originally Posted by miwago View Post
I asked the shop foreman about the HO motor the other day, and he said the 305 vs the 325 HO are the same motor, tip to tail, except for the stock ECM programming. I could have mine reprogrammed per stock to a 325 HO motor for a few $$.
Quote:
Originally Posted by bigpatten86 View Post
as long as its a 24 valve ctd it should

There are differences in the engine, the turbo, the injector tips, computer, and there are a few other things are different.
The ECM in the 305 cannot run the program from the 325 because the ECM from the 325 is bigger for emissions reasons.

the injectors should be the same between the 250 and the 305 but you won't gain anything.
The 325 uses different tips on its injectors and you cannot use the 325 tips in a 305 or the other way around. you can use the injectors from the other engine IF you change the tips to match the engine, in other words 325 injectors w/ 305 tips will work in a 305.
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Last edited by scrappy; 04-27-2007 at 01:12 AM.
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Old 04-27-2007, 01:19 AM   #12 (permalink)
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Quote:
Originally Posted by miwago View Post
I asked the shop foreman about the HO motor the other day, and he said the 305 vs the 325 HO are the same motor, tip to tail, except for the stock ECM programming. I could have mine reprogrammed per stock to a 325 HO motor for a few $$.
Here's what you should do, go up to your shop foreman and kick him square in the testicles for giving you that BS answer. Many internal parts are different, the piston bowls are larger and non re-entrant, the injectors have 5-holes instead of 8-holes, different turbocharger, different injection pulse, and also the before mentioned ECM parameters. So to answer the initial question of exchanging 305HP injectors with 325hp injectors, NO.

Last edited by Don Wagner; 04-27-2007 at 01:21 AM.
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