2013 LS3 fuel pump - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

MSB · 03-22-2015, 05:55 PM

Hello everyone,

My tuner today told me that the fuel pump has an issue, it drops after 4500 rpm. So I'm going to change it, whats the part # for it? or should I get the zl1 fuel pump? and if I'm going to get the zl1 pump what else should I get? my car has intake, tb, fast manifold, udp, headers and exhaust. And I'm not in the states anymore so parts can be hard to find unless its from GM dealership.

thanks.

Iam Broke · 03-23-2015, 08:54 AM

With your mods the stock pump dropping to 52 psi or so is normal. Not a big deal and can be tuned out for NA engines. Find out how far it drops wot before throwing money at it. ADM sells the ZL1 pump and FPCM if you decide you need it.

newagemuscle · 03-23-2015, 10:18 AM

Quote:

Originally Posted by Iam Broke

With your mods the stock pump dropping to 52 psi or so is normal. Not a big deal and can be tuned out for NA engines. Find out how far it drops wot before throwing money at it. ADM sells the ZL1 pump and FPCM if you decide you need it.

Can you explain to me what the FPCM is and why it is needed? Isn't the ZL1 pump enogh if you are doing a slight pulley change? In my case 3.8 to 3.6. I guess Im just not sure what it is for. Thanks

MightymouseSS · 03-23-2015, 10:48 AM

For your N/A application it stock SS pump should be enough. Going with boost you'll need to upgrade the fuel system.

1KillerSS · 03-23-2015, 11:31 AM

Quote:

Originally Posted by Iam Broke

With your mods the stock pump dropping to 52 psi or so is normal. Not a big deal and can be tuned out for NA engines. Find out how far it drops wot before throwing money at it. ADM sells the ZL1 pump and FPCM if you decide you need it.

Exactly, what are the numbers. Some of the pros think that anything other than 58psi is an issue and needs to be addressed. There are also some good pros out there that say that once you dip into the 40's you need to watch out. Also What's your IDC (injector duty cycle) when your FP drops?

2012LS3VERT · 03-23-2015, 11:41 AM

Quote:

Originally Posted by newagemuscle

Can you explain to me what the FPCM is and why it is needed? Isn't the ZL1 pump enogh if you are doing a slight pulley change? In my case 3.8 to 3.6. I guess Im just not sure what it is for. Thanks

The FPCM is reprogrammed to allow the stock SS computer to ramp up fuel delivery to take advantage of the increased capacity of the ZL1 pump. The ZL1 pump doesn't really help without the FPCM, it behaves pretty much exactly like the stock SS pump without one.

CamaroCracka · 03-23-2015, 01:20 PM

Before you jump on changing that fuel pump, realize you have to drop the cradle to change it. If you do need a new pump, you might as well get the ZL1 pump (even if you don't get a modified FPCM) as the price delta for the part is not that much.

kissmyss03 · 03-23-2015, 05:39 PM

I got a cts-v pump in my setup just in case i get close to maxing out the zl1 pump. Timer recommended it so that you only drop the tank once to address fuel needs

Bo White · 03-23-2015, 06:43 PM

CTSV pumps are good for 800 crank.

03-22-2015, 05:55 PM	#1
MSB Drives: '13 LS3 Join Date: Jun 2013 Location: Boston, MA Posts: 31	2013 LS3 fuel pump Hello everyone, My tuner today told me that the fuel pump has an issue, it drops after 4500 rpm. So I'm going to change it, whats the part # for it? or should I get the zl1 fuel pump? and if I'm going to get the zl1 pump what else should I get? my car has intake, tb, fast manifold, udp, headers and exhaust. And I'm not in the states anymore so parts can be hard to find unless its from GM dealership. thanks. __________________

03-23-2015, 08:54 AM	#2
Iam Broke PHAT B33 Drives: 2012 TF3 Camaro 2SS/RS M6 Join Date: Jun 2012 Location: Dark of the Moon Posts: 1,460 View My Garage	With your mods the stock pump dropping to 52 psi or so is normal. Not a big deal and can be tuned out for NA engines. Find out how far it drops wot before throwing money at it. ADM sells the ZL1 pump and FPCM if you decide you need it. __________________ Another 1 of 371 '12 T3 LS3 M6's built.

03-23-2015, 10:48 AM	#4
MightymouseSS Drives: 2011 LS3 Join Date: Jan 2012 Location: el paso tx Posts: 547	For your N/A application it stock SS pump should be enough. Going with boost you'll need to upgrade the fuel system. __________________ Vararam Stainless Works Headers Vmax TB SLP loudmouth 2 Nightfury Cam Mike Norris CC Tuned by Southwest Speed

03-23-2015, 01:20 PM	#7
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 2,729	Before you jump on changing that fuel pump, realize you have to drop the cradle to change it. If you do need a new pump, you might as well get the ZL1 pump (even if you don't get a modified FPCM) as the price delta for the part is not that much. __________________ 2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes.

03-23-2015, 05:39 PM	#8
kissmyss03 Drives: 2011 Camaro SS 2SS/RS Join Date: Sep 2012 Location: macomb Twp Posts: 151	I got a cts-v pump in my setup just in case i get close to maxing out the zl1 pump. Timer recommended it so that you only drop the tank once to address fuel needs __________________ 2011 Camaro 2SS/RS M6 Kooks Headers, catless mids, corsa exhaust, rotofab intake, SLP TVS 2300, 3.2 pulley, blower cam, cts-v fuel pump, Vector tuned 622 RWHP 573 TQ

03-23-2015, 06:43 PM	#9
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,018	CTSV pumps are good for 800 crank. __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X