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Max HP with plenty of air for DDP4's?????

Old Dec 30, 2008 | 03:19 PM
  #16  
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Does anyone know what the LPM rate is for stock intercooled injectors?
Maybe.................................45?
If you can answer this it might help figure the other ratings out.
The new 4 hole DDP "IVs or 55 lpm" are probably good for 390-425 hp.
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Old Dec 30, 2008 | 03:35 PM
  #17  
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Stock seem more like 35 to 40 lpm if not less. It dosen't really matter how much the injector flows it's how you use it to get the HP. You can dump the fuel in but if you don't have the air,timing and other stuff you won't make high HP.
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Old Dec 30, 2008 | 06:04 PM
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Man, I hope my H1C is adequate for these injectors. I enjoy the smoke videos but I want my ride to run clean..
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Old Dec 30, 2008 | 06:10 PM
  #19  
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Well, keep us posted, as i'm looking to do allmost the same thing with my truck.
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Old Dec 30, 2008 | 09:29 PM
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pwrtripls1- LPm is for injector flow rates. At what pressure, I dont know, nor have I thought to ask.

As for CCs, that is INJECTOR PUMP output, regardless of whether it's stock IC injectors, or 6x022 EDMs.
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Old Dec 30, 2008 | 10:26 PM
  #21  
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I have a set of 62lpm ddp4+ injectors, and they work pretty well. Made 300rwhp with a stock turbo.....great daily driver injectors. Very clean injector. I haze, but not that bad, although EGTs are 1600 deg. so I know I could use more air. I'd say 400-ish rwhp also is about what they are good for.
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Old Dec 30, 2008 | 10:34 PM
  #22  
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From: Katy, TX off north Mason Road.
jqmile, where did you get the 62lpm ones from? I was looking into the 80hp aka ddp4's and thought they were 55lpm. Missing out on 7lpm is alot of fuel. lol
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Old Dec 31, 2008 | 11:00 AM
  #23  
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You have to ask for them. If they won't make them go somewhere else.
Mine are custom 5 hole 71 lpm. My original DDP4s were 5 hole 62 lpm "120hp" and required a core. Now they have switched to 4 hole 55 lpm "80hp" but still call them DDP4s; no core required.
I used to talk to Ross there but now is no longer with them.

My other injector recommendations are Scheids and Budda Power.
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Old Dec 31, 2008 | 11:03 AM
  #24  
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From: Katy, TX off north Mason Road.
Originally Posted by GLHS
You have to ask for them. If they won't make them go somewhere else.
Mine are custom 5 hole 71 lpm. My original DDP4s were 5 hole 62 lpm "120hp" and required a core. Now they have switched to 4 hole 55 lpm "80hp" but still call them DDP4s; no core required.
I used to talk to Ross there but now is no longer with them.

My other injector recommendations are Scheids and Budda Power.
Well I guess the 80hp will have to do for now. I really wish I coulda got the 120hp ones. Probibly were the same price too.
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Old Dec 31, 2008 | 01:08 PM
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I hear cold starts become an issue when you have 100+ hp injectors.
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Old Dec 31, 2008 | 03:07 PM
  #26  
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From: Katy, TX off north Mason Road.
I live in Houston so no cold weather here. Its 72* today and sunny. lol
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Old Dec 31, 2008 | 07:35 PM
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what DDP stand for?
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Old Dec 31, 2008 | 08:12 PM
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Dynomigghhhht!! Diesel Performance
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Old Dec 31, 2008 | 08:25 PM
  #29  
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Originally Posted by The_Head
Man, I hope my H1C is adequate for these injectors. I enjoy the smoke videos but I want my ride to run clean..
I highly doubt an H1C even with a 60mm comp. wheel upgrade will be able to adequately run these injectors. I would expext it to get really hot, and smokey.
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Old Dec 31, 2008 | 08:31 PM
  #30  
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Originally Posted by '91 1st Gen
I highly doubt an H1C even with a 60mm comp. wheel upgrade will be able to adequately run these injectors. I would expext it to get really hot, and smokey.

https://www.dieseltruckresource.com/...d.php?t=228117

He seems to be doing ok with it. I'm at a higher altitude though. I kind of want to get a turbo with a 4" outlet anyways. The exhaust guy made my downpipe look ugly.
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