5th gen dsx pump - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

chadbeau · 06-23-2019, 04:23 PM

My car is a m6 5th gen Head/cam,2.35/9.1, dsx aux pump, id1300,dsx flex fuel kit, forged internals 10:5:1 cr! My question is when i i do a wot pull and my pump kicks on it jumps up to 70psi and by the time I’m at top of 4th my pressure is down to 50-52 psi, what could be causing this? I replaced the actual pump yesterday thinking it was weak maybe and cleaned the filter and it’s still doing same thing!

quinthawk · 06-23-2019, 06:29 PM

Have the settings in the fpcm been changed?
Those need to be changed to allow higher pressure.
I have the dsx parts,I have 85 psi.

hammdo · 06-23-2019, 06:56 PM

FPCM and pressures in the tune can be adjusted..

I have the ZL1 fuel pump, BAP, and DSX kit — Dave adjusted my FPCM for me when I purchased the kit:

-Don

chadbeau · 06-23-2019, 09:31 PM

It looks like it has been, i did the conversion from kpa to psi it’s not as high as yours though

hammdo · 06-23-2019, 09:40 PM

Yep, that should be updated. Dave Steck told me to raise mine. What I have is based on his and Mark’s (ABADZL1) recommendations... and the reprogrammed FPCM...

-Don

RyangAsh · 07-11-2019, 10:59 AM

Quote:

Originally Posted by chadbeau

It looks like it has been, i did the conversion from kpa to psi it’s not as high as yours though

Those values aren't high enough and the four boxes at the bottom need to be altered in some cases also..

06-23-2019, 04:23 PM	#1
chadbeau Drives: white zl1 Join Date: Nov 2018 Location: spring tx Posts: 19	5th gen dsx pump My car is a m6 5th gen Head/cam,2.35/9.1, dsx aux pump, id1300,dsx flex fuel kit, forged internals 10:5:1 cr! My question is when i i do a wot pull and my pump kicks on it jumps up to 70psi and by the time I’m at top of 4th my pressure is down to 50-52 psi, what could be causing this? I replaced the actual pump yesterday thinking it was weak maybe and cleaned the filter and it’s still doing same thing!

06-23-2019, 06:56 PM	#3
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,694 View My Garage	FPCM and pressures in the tune can be adjusted.. I have the ZL1 fuel pump, BAP, and DSX kit — Dave adjusted my FPCM for me when I purchased the kit: -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

06-23-2019, 09:31 PM	#4
chadbeau Drives: white zl1 Join Date: Nov 2018 Location: spring tx Posts: 19	It looks like it has been, i did the conversion from kpa to psi it’s not as high as yours though Attached Images

06-23-2019, 09:40 PM	#5
hammdo 'It's an experiment' Drives: [COTW 2/09/15] '11 GPI LSA SC Z/LE Join Date: May 2014 Location: Dallas TX Posts: 8,694 View My Garage	Yep, that should be updated. Dave Steck told me to raise mine. What I have is based on his and Mark’s (ABADZL1) recommendations... and the reprogrammed FPCM... -Don __________________ 747 RWHP 794 RWTQ "Horsepower sells cars, torque wins races." - Enzo Ferrari See My Build: http://www.camaro5.com/forums/showthread.php?t=385577

06-23-2019, 06:29 PM	#2
quinthawk Drives: 2010 camaro ss, 2012 ZL1, 2021 LT1 Join Date: Oct 2009 Location: Iowa Posts: 125	Have the settings in the fpcm been changed? Those need to be changed to allow higher pressure. I have the dsx parts,I have 85 psi.