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Evan or OSUduramax did for awhile....i dont think he gained alot
 

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The consensus seems to be you will see very small gains and will need a bigger turbo and/or nitrous to get big increases.
 

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the way I see this it aint really going to gain much. With stock configuration I think its waste of money to do this.

The way I will set up my new Diesel Project will go like this...

1. Built Trans
2. Big tune
3. Fuel delivery upgrades (meaning dual CP3's, lift pumps)
4. Big Turbo

I believe that is how Diesel like Duramax make power. These are the key factors to run strong.
Maybe someone else can chime in and correct this.
 

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I've seen minimal gains with dual CP3's and stock turbo. If you plan to do turbo and dual CP3's plan on building an engine before you grenade it...
 

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I have a dual fueler with a stock turbo for now.Have an HTT to put on. I mainly noticed the difference in the top end Where i was running out of fuel before. Like i said, I have an HTT to put on, and have a spare engine to build ;)
 

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Discussion Starter #7
These answers were kinda what I figured. I'll have dual CP3's for this coming season and will be using the stock turbo for the first month or so before I change the turbo. Still haven't decided on one yet but it will have a T6 flange.

Nick
 

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Can someone answer for me what CP3 means?
 

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I would think with a flange that big you would loose velocity and not be able to spool up as fast, nor as high. I would Think a T-4 flange is as big as this engine could reasonably perform with.
 

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AidanN20;1562083; said:
Can someone answer for me what CP3 means?
The CP3 is the pump name from Bosch.
C = Common Rail
P = Pump
3 = Flow and pump body size

It is ormal that you don't get a lot of HP gain by stock turbo and stock tune. The pump delivers just so much pressure as it get demanded from the ECU. If you are not running low with pressure the second pump doesn't help you anything. It begins by 500 HP ++ that the pump can't keep up to deliver fuel ==> then you need a dual fuel CP3 which is driven by the drive belt on the place where the second alternator would sit.
 

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duramaxdiesel;1560343; said:
Anyone ever try it out? Were there any gains to be had? Just curious.

Nick
Talk to (Simon) sweetdiesel he has dual CP3's with a stock turbo. He's been tweaking on them for a while and the package sure has come around.
 
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