JMS FuelMax installed

LiqTenExp · 02-07-2020, 04:42 PM

Would like to say thanks to TMS and XXX ZL1 for helping out with some details from their installs, I tried to make this as clean as possible. The following threads contain all the details you will need, I have some additional photos in mine, all 3 should be more than enough. This was done as a "no cut" installation, see parts list below.

https://www.camaro6.com/forums/showp...49&postcount=6
https://www.camaro6.com/forums/showthread.php?t=536723

Note: If you install the JMS FuelMax right near the plastic grommet you will not have to extend the cables, they just reach. The 30A fuse included is a micro fuse, you need to get a 30A micro2 fuse for the fuel pump. I mounted the FuelMax using industrial strength velcro so it could be easily accessed and gives it a little shock absorption.

Parts required (from Mouser)

571-8289051 (Seal)
571-1326032-6 (female 12AWG)
571-1-1326031-2 (male 12AWG)

Couple installation notes that line up with each picture in order below:

Connector is buried under the differential, sucked!
Connector
Lock removed, push out simultaneously on the two outer tabs
Pin pulled from harness and two new wires pinned
Factory wire goes to input to JMS FuelMax, white wire goes where factory wire went (no wires cut here)
Heatshrink over the connection, pin inserted, ready to go back
My new additional harness on left, factory on right
JMS FuelMax installed in trunk left side, excess cable that goes up to throttle pedal coiled up, use one of the ground lugs right there for it

TMS · 02-07-2020, 06:21 PM

Sent from my iPhone using Tapatalk

7LitreC5 · 02-07-2020, 08:02 PM

Thanks a bunch for taking the time to post this. I am at the limit of my low side and need to install one of these. I DYI most of my mods so this is great.

Which JMS part number is the correct one for the ZL1?

LiqTenExp · 02-07-2020, 08:23 PM

https://www.jmschip.com/electric-fuel-pump-p2000gmp2/

XXX ZL1 · 02-07-2020, 10:42 PM

Very nice! Turned out great. Here is the pic of how I set mine up. Should get really close.

7LitreC5 · 02-08-2020, 07:18 AM

Thanks!

Quote:

Originally Posted by LiqTenExp

https://www.jmschip.com/electric-fuel-pump-p2000gmp2/

LiqTenExp · 03-08-2020, 05:55 PM

JMS FuelMax worked out well. Was able to push into a smaller pulley with my setup finally. First pull we were rich up top and had more than commanded fuel pressure on low side initially (finally, was running down previously), high side was very stable. Car spent a bunch of time on the dyno and runs great. Tuning was done at Tune Time Performance.

SlikZL1 · 03-09-2020, 07:30 AM

Quote:

Originally Posted by LiqTenExp

JMS FuelMax worked out well. Was able to push into a smaller pulley with my setup finally. First pull we were rich up top and had more than commanded fuel pressure on low side initially (finally, was running down previously), high side was very stable. Car spent a bunch of time on the dyno and runs great. Tuning was done at Tune Time Performance.

You have a camshaft too correct? Im curious as to when a low side upgrade is needed (like dsx). According to jannety, you can use the JMS with a low side upgrade.
I also have a JMS fuel max and its working great. XXX ZL1 is my buddy/tuner and we did them for the consistency on the pump. Also, for anyone that does these, you can use one of the spare fuse's in the front fuse panel if you forget to get a micro 30a.

ADstranger · 04-10-2020, 11:34 AM

Quote:

Originally Posted by LiqTenExp

JMS FuelMax worked out well. Was able to push into a smaller pulley with my setup finally. First pull we were rich up top and had more than commanded fuel pressure on low side initially (finally, was running down previously), high side was very stable. Car spent a bunch of time on the dyno and runs great. Tuning was done at Tune Time Performance.

What’s your pressures like now? How did you adjust the over the commanded psi at top end and keep the pressures below dialed in?

JANNETTYRACING · 04-10-2020, 11:41 AM

Quote:

Originally Posted by ADstranger

What’s your pressures like now? How did you adjust the over the commanded psi at top end and keep the pressures below dialed in?

The JMS will not raise the pressure beyond commanded that is still controlled by the FSCM

The JMS is a voltage booster that will feed your FSCM.

Ted.

ADstranger · 04-10-2020, 11:46 AM

Quote:

Originally Posted by JANNETTYRACING

The JMS will not raise the pressure beyond commanded that is still controlled by the FSCM

The JMS is a voltage booster that will feed your FSCM.

Ted.

I get that but in my case my psi drops to high 40s- low 50s, what will the JMS do for me?

LiqTenExp · 04-10-2020, 12:09 PM

Quote:

Originally Posted by ADstranger

I get that but in my case my psi drops to high 40s- low 50s, what will the JMS do for me?

That is where I was landing prior to JMS FuelMax even though commanded was much higher. After installation we were able to achieve commanded on low side and the high side was much more stable.

ADstranger · 04-10-2020, 12:17 PM

Quote:

Originally Posted by LiqTenExp

That is where I was landing prior to JMS FuelMax even though commanded was much higher. After installation we were able to achieve commanded on low side and the high side was much more stable.

👍

h018871 · 02-05-2021, 03:55 PM

sub'd for reference

02-07-2020, 04:42 PM	#1
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	JMS FuelMax installed Would like to say thanks to TMS and XXX ZL1 for helping out with some details from their installs, I tried to make this as clean as possible. The following threads contain all the details you will need, I have some additional photos in mine, all 3 should be more than enough. This was done as a "no cut" installation, see parts list below. https://www.camaro6.com/forums/showp...49&postcount=6 https://www.camaro6.com/forums/showthread.php?t=536723 Note: If you install the JMS FuelMax right near the plastic grommet you will not have to extend the cables, they just reach. The 30A fuse included is a micro fuse, you need to get a 30A micro2 fuse for the fuel pump. I mounted the FuelMax using industrial strength velcro so it could be easily accessed and gives it a little shock absorption. Parts required (from Mouser) 571-8289051 (Seal) 571-1326032-6 (female 12AWG) 571-1-1326031-2 (male 12AWG) Couple installation notes that line up with each picture in order below: Connector is buried under the differential, sucked! Connector Lock removed, push out simultaneously on the two outer tabs Pin pulled from harness and two new wires pinned Factory wire goes to input to JMS FuelMax, white wire goes where factory wire went (no wires cut here) Heatshrink over the connection, pin inserted, ready to go back My new additional harness on left, factory on right JMS FuelMax installed in trunk left side, excess cable that goes up to throttle pedal coiled up, use one of the ground lugs right there for it Attached Images __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93) Last edited by LiqTenExp; 02-07-2020 at 05:18 PM.

02-07-2020, 06:21 PM	#2
TMS Drives: 2018 ZL1 1LE - HBM, PDR Join Date: Jun 2017 Location: Rescue, CA Posts: 324	Sent from my iPhone using Tapatalk __________________ JRE Tuned (HPTuners) \| 15% OD (9.17" crank pulley) \| TVS2300 Maggie Heartbeat Supercharger - 14 psi \| E-50 (DSX Flex Fuel kit) \| JMS FuelMax Fuel Pump Booster \| LPE Big Bore High Volume DI fuel pump \| LPE High Flow DI fuel injectors \| LT5 95mm TB \| RotoFab CAI \| AEM X-Series OBD2 wide band gauge \| Elite Engineering E2-X catch can \| Borla S-type NPP Cat-Back 3" exhaust \| Forgeline GTD1 5-lug Satin Graphite \| SunTek wrap \| C-Quartz Finest Reserve ceramic coated

02-07-2020, 08:23 PM	#4
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	https://www.jmschip.com/electric-fuel-pump-p2000gmp2/ __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

02-07-2020, 10:42 PM	#5
XXX ZL1 Drives: 2023 ZL1 M6 Join Date: Sep 2018 Location: Pace FL Posts: 416	Very nice! Turned out great. Here is the pic of how I set mine up. Should get really close. Attached Images __________________ 2024 Riverside Blue ZL1 M6 Magnuson 2650R, NW 103, Roto Fab Big Gulp, ARH 2 inch LT's, Stainless Works NPP Signature Forged 20x10.5/20x11.5, BMR springs, BMR Cradle lockout, AAD Billet Control/Trailing arms 2023 Vivid Orange ZL1 M6 - sold 2019 Riverside Blue ZL1 A10 - sold

03-08-2020, 05:55 PM	#7
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	JMS FuelMax worked out well. Was able to push into a smaller pulley with my setup finally. First pull we were rich up top and had more than commanded fuel pressure on low side initially (finally, was running down previously), high side was very stable. Car spent a bunch of time on the dyno and runs great. Tuning was done at Tune Time Performance. __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

02-07-2020, 08:02 PM	#3
7LitreC5 Drives: 18 Tahoe RST, 19 Z06 Join Date: Apr 2017 Location: Colorado Springs, CO Posts: 327	Thanks a bunch for taking the time to post this. I am at the limit of my low side and need to install one of these. I DYI most of my mods so this is great. Which JMS part number is the correct one for the ZL1?

02-05-2021, 03:55 PM	#14
h018871 Geoff Drives: 2020 ZL1 Green Join Date: May 2013 Location: Houston Posts: 1,719	sub'd for reference __________________ Having a Blast https://www.camaro6.com/forums/showt...php?p=10741733

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