What pump/pumps for 150% overs?

Nickracer9

Member
May 23, 2012
203
1
18
Currently running an exergy 12mm pump with my 150% over 7 hole nozzles. Was thinking about putting a stock pump on the belt but not sure if that would be overkill or create tuning issues. I know the 14mm race is an option as well but I somewhat daily drive my truck and not sure if that pump is proven yet. What would you guys do? Hp goal is whatever the stg2r plus the 369’s will make. Thanks!
 
Last edited:

MarkBroviak

DMax Junkie
Vendor/Sponsor
May 25, 2008
2,132
461
83
Danville Indiana
Stg2R and 369's is good to 1150hp so the 12mm technically will cover it by it's self but 14mm would be icing on the cake. I prefer a single pump to duals any day of the week. I have run the 14mmcp3 as a single from stock lmm injectors all the way to the 250%inj I ran in my LBZ without issues.
 

catmenace

Member
Jul 31, 2010
255
2
18
I am running the 14 MM CP3 with 150 overs and runs great!. I used to have the 10MM cp3 with 60 overs and when I changed it made a big difference as far as performance and seems to run smoother.
 

JoshH

Daggum farm truck
Staff member
Vendor/Sponsor
Feb 14, 2007
13,712
773
113
Texas!!!
I run a 10mm CP3 on my 100% LMM injectors with a 2500 uS pulse width, and it just keeps up at 26k psi rail pressure. I would think a 12mm pump would be enough to keep up with some 150% injectors at about the same pulse width.