CP3 on my LMM - Chevy and GMC Duramax Diesel Forum
Performance Upgrades Discuss what Intakes,Exhaust,Fuel System,Programmers,Tuners,&Trans. are right for you.

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Old 12-20-2011, 04:45 AM   eBay Motors  #1 (permalink)
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CP3 on my LMM

I was told if i want more power in my truck the next thing i need to add is a new CP3. So Im in the market to upgrade to a different CP3. I guess wat do I need to know about it, and wat does it really do?
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Old 12-20-2011, 04:59 AM   eBay Motors  #2 (permalink)
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Do you have an after market turbo? Bigger injectors? If not I would look into a turbo before a cp3. After the turbo get some nozzles. The cp3 is a high pressure injection pump it is what supplys the injectors with fuel. People usually don't upgrade the cp3 unless it isn't making pressure due to having larger injectors and running higher pulse width tunes.


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Old 12-20-2011, 05:01 AM   eBay Motors  #3 (permalink)
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I was told if i want more power in my truck the next thing i need to add is a new CP3. So Im in the market to upgrade to a different CP3. I guess wat do I need to know about it, and wat does it really do?
someone lied to you

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Do you have an after market turbo? Bigger injectors? If not I would look into a turbo before a cp3. After the turbo get some nozzles. The cp3 is a high pressure injection pump it is what supplys the injectors with fuel. People usually don't upgrade the cp3 unless it isn't making pressure due to having larger injectors and running higher pulse width tunes.


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yep unless you are running bigger turbo and injectors then there is no reason to get a second or a upgraded cp3, you can blow the motor well before you do that lol
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Old 12-20-2011, 05:03 AM   eBay Motors  #4 (permalink)
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You have way more mods to go before you need a modded cp3. A stock cp3 is capable of produceing 650 rwhp with an aftermarket turbo. I would go that route, a stock fuel system can drastically ovefuel a stock turbo anyway so why add even more unuseable fuel. Plus, once you add fuel you had better have 10,000 set aside for an engine build and already have a short block sitting in your garage. Because once you add fuel (pump/injectors) it's a ticking time bomb......................
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Old 12-20-2011, 05:08 AM   eBay Motors  #5 (permalink)
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You have way more mods to go before you need a modded cp3. A stock cp3 is capable of produceing 650 rwhp with an aftermarket turbo. I would go that route, a stock fuel system can drastically ovefuel a stock turbo anyway so why add even more unuseable fuel. Plus, once you add fuel you had better have 10,000 set aside for an engine build and already have a short block sitting in your garage. Because once you add fuel (pump/injectors) it's a ticking time bomb......................
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Old 12-20-2011, 05:11 AM   eBay Motors  #6 (permalink)
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i wouldnt touch the cp3 - if you want power, make sure you can hold it i.e. get your trans built then you can get a lot more out of your tuning and go from there
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Old 12-20-2011, 05:14 AM   eBay Motors  #7 (permalink)
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this<
FIXED IT FOR YA ask raptor jesus he knows all
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Names Yezin im 24 and yes i bought my truck myself
2006 CCSB 2500Hd Lt2 LLY DMax, Efi live 150hp Idaho Rob , 5in Straight Pipe 6in Black Tip:rockin, Diamond Eye Dp, Tie rod sleeves, Edge Insight cts, SDP Egr Delete Pipe, Fprv shimmed, Pcv Reroute, All On mod, Blue led's in gauges cluster, Clarion Nx700, 8000k HID's highs/lows/fogs, Rbp Locking Fuel Door, Recons with Led Reverse lights
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Old 12-20-2011, 05:14 AM   eBay Motors  #8 (permalink)
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i wouldnt touch the cp3 - if you want power, make sure you can hold it i.e. get your trans built then you can get a lot more out of your tuning and go from there
I just noticed he dosen't have a built trans.........................

OP, you don't even know what a big EFI built trans tune can do yet...............

Get your trans built next..................................
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Old 12-20-2011, 05:42 AM   eBay Motors  #9 (permalink)
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Like all the guys have already said..... You have about another 6000 bucks minimum to spend in mods before you need to be thinkin about CP3's and all that good stuff.
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Old 12-20-2011, 06:37 AM   eBay Motors  #10 (permalink)
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Yeah I'm getting a sun coast GDmax put in this spring then injectors. Well don't want a time bomb that's for sure. So built tranny then just bump my Efi numbers up?
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