2.6 class with 13mm pump

Question is, does a 13mm pumped even be needed?

If you have to turn the pump down all the way, what is the advantage of running it over a built and flowed 12mm?
 
Ok, thats what I was thinking.

Kinda like being overbuilt. Like a HX35 making 40lbs over a 66mm turbo making 40lbs.
 
How about a quick fill cam in a maxed out 12mm pump? for a 2.6 class puller...

Should be no different than a 13mm pump with the plate set back to around the 525-550 cc mark, right?

Any downsides to doing this on a truck that will still be driven on the street during the rest of the year?
 
Not trying to change the subject here, but going back to the fuel screw adjustment. Are the 13mm pumps the only ones that have the fuel screw adjustment? Or can a 12mm pump be outfitted with one also?
 
GOT-Torque said:
How about a quick fill cam in a maxed out 12mm pump? for a 2.6 class puller...

Should be no different than a 13mm pump with the plate set back to around the 525-550 cc mark, right?

Any downsides to doing this on a truck that will still be driven on the street during the rest of the year?
Click to expand...

A quickfill cam in a 12mm pump will be an improvement, but will not provide as much benefit as a 13mm pump will.
 
why not run 14mm or even 15mm....Ive got both sitting here on my desk...rate of injection is key....
 
Ive always heard a fine tuned 13mm is as good as a 14mm. Dont think the 14mm pumps last very long. Otherwise im sure there would be plenty out there. I would say if a 13mm isnt getting it done for you then it time for a Nippo or Sigma. Then your talking a real waste of money for a 2.6 truck. Or you just got alot of money. I'd say a good 13mm from Harts diesel, Scheids, or Columbus would do the trick. I know where my next 13 is coming from and thats Harts without a doubt.
 
2Tone12V said:
Ive always heard a fine tuned 13mm is as good as a 14mm. Dont think the 14mm pumps last very long. Otherwise im sure there would be plenty out there. I would say if a 13mm isnt getting it done for you then it time for a Nippo or Sigma. Then your talking a real waste of money for a 2.6 truck. Or you just got alot of money. I'd say a good 13mm from Harts diesel, Scheids, or Columbus would do the trick. I know where my next 13 is coming from and thats Harts without a doubt.
Click to expand...
Heard of them before. How are their prices? Anyone have a video of a truck with one of their pumps on it?
 
Black Crow, Disposable Income, and my buddy are the only three. I can get you something tomorrow maybe. My buddy did their injectors, pump, gt42, and air/water intercooler and it was crazy!!
 
2Tone12V said:
Black Crow, Disposable Income, and my buddy are the only three. I can get you something tomorrow maybe. My buddy did their injectors, pump, gt42, and air/water intercooler and it was crazy!!
Click to expand...


What truck was that setup on?
 
My buddy shanes. He finally got it done right before Owensville fair. Got one test hook in. Blew clutch, axles, and driveshafts apart front and back. Got it back together for owensville. Tore front end all up again and melted number 6 cylinder down. It screams.
 
St. Joe diesel makes good pumps also. They will do whatever your looking for, its worth giving them a call.
 
I understand the rate of injection and im guilty of a big pump too, but, a 13mm pump is not needed for a 2.6. If you cant be competitive with a 12mm, then you need to step back and take a good look at why your setup is not working. For instance Schieds. 2.6 was workstock and you need a 13mm pump to win workstock?? Evidently because a cp3 won it huh! Tim
 
I would just ask IllinoisRam. Hes got all the answers. As far as Scheids goes. The later you pulled, the better you placed. I think that if Brandon (97CTD) would have pulled last. He would have won that pull for sure. I believe his truck was the most impressive run of that entire class. He had an awesome pull of low 300's and the truck was screamin. Winner was at 400' after it was all over. Not taking anything away from Wesleys truck at all. But it was to the last pullers advantage without a doubt.
 
2Tone12V said:
I would just ask IllinoisRam. Hes got all the answers. .
Click to expand...

I love sarcasm! All i was really saying is for a 2.6 class, a 12mm pump will build plenty of power even with the slow injection rate. I would build a 13mm pump too but my opinion is build the big pump and turn it down to desired cc"s so you are not running the pump maxed out to help with reliability. I think 97CTDs truck runs damn good too and i thought he had a CDS 12mm.
My comment about the cp3 pump was just a joke. I guess my sense of humor is different than yours. Tim
 
ILLINOISRAM said:
my opinion is build the big pump and turn it down to desired cc"s so you are not running the pump maxed out to help with reliability.
Click to expand...

I thought this was the situation where 13mm pumps have reliability problems (being turned all the way down)?

Which is why I thought someone might be better off running a maxed out 12mm pump with a quick fill cam. Plenty of fuel for the 2.6 class, support higher rpm, and no reliability issues like a 13mm turned all the way down would have...

I could be way off though and would like to hear others opinions on the reliability of a 13mm pump with the plate all the way back...

What problems actually occur? wiping a pump shaft lobe... sticking a plunger in the barrel... anything else?
 
You must log in or register to reply here.
Back
Top