Which CP3 for the LML

NC-smokinlmm

<<<Future tuna killer
May 29, 2011
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We have been tuning them since May, the one I spoke of I live tuned.

Its not a problem.

:thumb:

That's good to know Tony. Maybe when you come down this way to visit your folks again you can take a shot at live tuning mine for me.:D

I was told there isn't much left in these trucks with just a CP3 conversion. Turbo is already at its limits as is the stock trans, am I understanding this correctly?
 

quadracer37

New member
Mar 31, 2009
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northern, IL
That's good to know Tony. Maybe when you come down this way to visit your folks again you can take a shot at live tuning mine for me.:D

I was told there isn't much left in these trucks with just a CP3 conversion. Turbo is already at its limits as is the stock trans, am I understanding this correctly?

Stock turbo is done around 550hp. stock trans slips before then, but you can limp them along for quite some time...
We've done a ton of cp3 conversions in house and kits sent out, with 10mm pumps and stock pumps. also done quite a few cp3 over cp3 on the LML, no issues to date. Calibrated Power has also tuned lots of them.
 

quadracer37

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Mar 31, 2009
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Is it easier/monitarily equal to twin pump it?


As in fuel capacity wise? Yes. The cp3 over cp4 pump set up will support 1000hp. A single 12mm would be close, but still a bit shy of that.
We use exergy Sportsman pumps in our twin kits standard. They are a step above a stock pump and will full fuel to 4500 rpm where a stock pump will flat line at about 3200 rpm.
Most of the cp4 delete kits we do, we'll use either the sportsman pump or a 10mm and if the customer ever wants to build the motor and go extreme hp them we'll put another cp3 over the top of that and have true dual cp3's.
Labor wise, the dual pump cp3/cp4 is a quicker install then the cp4 delete job.
 

Utahski

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Oct 20, 2008
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Floor-it made of the best pumps out there. I believe he taught exergy how to do it. I heard he is still making them but in a different shop.

My Floorit stroker pump lasted for 3 months and BANG! froze up completely on the Edge dyno. That was Oct. '12. Was promised a replacement and still don't have it, can't even reach him by phone.
 

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
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Lexington, Ky
My Floorit stroker pump lasted for 3 months and BANG! froze up completely on the Edge dyno. That was Oct. '12. Was promised a replacement and still don't have it, can't even reach him by phone.

My casting starting pouring out fuel in the 1st week I had it. Amazingly my replacement came about 1 week after. When I bought the first I waited about 2 months for it to show
 

NC-smokinlmm

<<<Future tuna killer
May 29, 2011
5,225
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At Da Beach
I'm just going to twin pump it over the cp4. I dont trust the stroker pumps and from what im told there are zero cases of cp4 failure with twin pumps. The trans is getting built in 2 weeks then I will add some fuel and air...:D
 

OregonDMAX

NOT IN OREGON, NO DURAMAX
Apr 28, 2013
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I'm just going to twin pump it over the cp4. I dont trust the stroker pumps and from what im told there are zero cases of cp4 failure with twin pumps. The trans is getting built in 2 weeks then I will add some fuel and air...:D

Failure rate is based on use, I don't know if there are enough cp3/cp4 setups out there yet to really test for dependability based on mileage
 

Bonestock

Active member
Aug 9, 2010
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Worland Wy
I still have the 10mm Exergy pump for sale. Black Friday pricing of $1550. This is a steal for someone who needs a next to new pump. Pm or give me shout or text if interested. 307-431-2482 Thanks, Randy.:thumb:
 

Utahski

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Oct 20, 2008
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I still have the 10mm Exergy pump for sale. Black Friday pricing of $1550. This is a steal for someone who needs a next to new pump. Pm or give me shout or text if interested. 307-431-2482 Thanks, Randy.:thumb:

He's right, this is a helluva deal. My Exergy (12mm) cost $2300, with core, a couple years ago.