Does anyone have a Camaro specific JMS fuel pump booster write up ?

asthmamax11 · 01-11-2023, 11:39 AM

Hey guys

I'm going to be installing the JMS fuel pump booster soon and was wondering anyone had a more Camaro specific write up available.

Or maybe some tips on where you mounted yours, etc.

Thanks alot!

18.2SS.1LE · 01-11-2023, 11:54 AM

I just finished mine up over the weekend. Referenced this thread: https://www.camaro6.com/forums/showthread.php?t=552426 and Jannetty's directions here: https://jannettyracing.com/pages/jms...er-gen-6-guide

PM me if you have any issues and I can try to help.

arpad_m · 01-11-2023, 12:01 PM

Here is a slightly more detailed writeup with many photos, courtesy Kris G @ Jannetty Racing.

18.2SS.1LE · 01-11-2023, 12:09 PM

Head to the store first and pick up a 30A micro fuse, the JMS comes with a mini fuse that is too large.

adamjwilson · 01-11-2023, 12:30 PM

I have a quick question regarding the JMS fuel voltage booster... I am installing the DSX aux fuel kit, and inquired with my speed shop about this unit as well. They recommended the DSX kit only, and not the JMS unit. I do see some shops use both the DSX and JMS units together. (for under 1000 whp of course) Not sure if there is any advantage to using both together, but it seems like most on the forum is using one or the other. Thoughts?

asthmamax11 · 01-11-2023, 01:33 PM

Quote:

Originally Posted by 18.2SS.1LE

Head to the store first and pick up a 30A micro fuse, the JMS comes with a mini fuse that is too large.

Yes!
I saw that in SteelRob's video
I appreciate the links and offer

LT1ornothing · 01-11-2023, 01:44 PM

Quote:

Originally Posted by adamjwilson

I have a quick question regarding the JMS fuel voltage booster... I am installing the DSX aux fuel kit, and inquired with my speed shop about this unit as well. They recommended the DSX kit only, and not the JMS unit. I do see some shops use both the DSX and JMS units together. (for under 1000 whp of course) Not sure if there is any advantage to using both together, but it seems like most on the forum is using one or the other. Thoughts?

So with the DSX kit, some of the guys who race on road courses have discovered that fuel starvation can occur when the fuel level in the tank is below a certain point AND hard turns are being taken. The JMS voltage booster allows the pump in the tank to momentarily increase the maximum amount of fuel it can deliver, such as when you are in boost.

adamjwilson · 01-11-2023, 01:54 PM

Quote:

Originally Posted by LT1ornothing

So with the DSX kit, some of the guys who race on road courses have discovered that fuel starvation can occur when the fuel level in the tank is below a certain point AND hard turns are being taken. The JMS voltage booster allows the pump in the tank to momentarily increase the maximum amount of fuel it can deliver, such as when you are in boost.

So there is really no advantage to this 'in normal' boosted applications for both. I don't race on road courses, but understand your reasoning here.

LT1ornothing · 01-11-2023, 02:42 PM

Quote:

Originally Posted by adamjwilson

So there is really no advantage to this 'in normal' boosted applications for both. I don't race on road courses, but understand your reasoning here.

The advantage of the dsx kit is the additional volume of fuel it can draw. The advantage of the JMS pump booster is that it can provide a little extra fuel in a more OEM style of fuel delivery.

KingLT1 · 01-11-2023, 03:05 PM

My brother runs JMS on stock pump a long with Cordes Auxiliary on his C7Z. It works fine on his car which is over 1k whp on E60. For anything 900 ish or lower just the Aux pump is likely fine on its own. Long as the pressure doesn't drop then you have enough fuel. My guess is those running JMS and Aux likely started with JMS and ended up needing more fuel as they increased power(as my Bro did), then added the Aux pump.

Sillysspeed · 01-11-2023, 06:02 PM

So is this to regulate voltage or should you just get a bigger in tank pump than lt4 and skip the jms?

LT1ornothing · 01-11-2023, 09:06 PM

Quote:

Originally Posted by Sillysspeed

So is this to regulate voltage or should you just get a bigger in tank pump than lt4 and skip the jms?

The answer to your question depends on your end goals, fuel type and your set up.

Sillysspeed · 01-12-2023, 07:41 AM

Quote:

Originally Posted by LT1ornothing

The answer to your question depends on your end goals, fuel type and your set up.

we used to always just put a bigger intank pump in. Most recently on my 4th Gen I had 1 450 walboro in tank and then went turbo and added another. In this car people want you to add a lt4 in tank (don’t know rating) and then add a jms booster on top of that. Why not just do a 450 or 525 in tank?

LT1ornothing · 01-12-2023, 07:58 AM

Quote:

Originally Posted by Sillysspeed

we used to always just put a bigger intank pump in. Most recently on my 4th Gen I had 1 450 walboro in tank and then went turbo and added another. In this car people want you to add a lt4 in tank (don’t know rating) and then add a jms booster on top of that. Why not just do a 450 or 525 in tank?

Most people shooting for huge power just go for the Fore triple pump system.

01-11-2023, 11:39 AM	#1
asthmamax11 Drives: 1SS Summit White 6 speed Join Date: Jul 2017 Location: Gainesville GA Posts: 579	Does anyone have a Camaro specific JMS fuel pump booster write up ? Hey guys I'm going to be installing the JMS fuel pump booster soon and was wondering anyone had a more Camaro specific write up available. Or maybe some tips on where you mounted yours, etc. Thanks alot! __________________ 16 1SS M6 White Magnuson 2.3 Heartbeat Roto Fab Solo Performance Cat deletes and Axleback Hurst short shifter #'s coming soon Riaction coilovers 1LE sway bars BMR mm BMR chassis brace Flow one 19" wheels wrapped in Mickey Thompsons 02 Z28 M6 35th anniversary 80k miles T-tops Leather Bolt ons Joy to drive this classic every day! Daily Driver

01-11-2023, 11:54 AM	#2
18.2SS.1LE Drives: Chevrolet Camaro Join Date: Apr 2022 Location: Maryland Posts: 134	I just finished mine up over the weekend. Referenced this thread: https://www.camaro6.com/forums/showthread.php?t=552426 and Jannetty's directions here: https://jannettyracing.com/pages/jms...er-gen-6-guide PM me if you have any issues and I can try to help. __________________ Procharger P1X, CSP Big Boy Cam, CSP Headers, LT4 HPFP, LT4 Injectors, JMS BAP - 722WHP

01-11-2023, 12:09 PM	#4
18.2SS.1LE Drives: Chevrolet Camaro Join Date: Apr 2022 Location: Maryland Posts: 134	Head to the store first and pick up a 30A micro fuse, the JMS comes with a mini fuse that is too large. __________________ Procharger P1X, CSP Big Boy Cam, CSP Headers, LT4 HPFP, LT4 Injectors, JMS BAP - 722WHP

01-11-2023, 12:30 PM	#5
adamjwilson Drives: 2022 Camaro 2SS A10 Join Date: Jul 2022 Location: FL Posts: 524	I have a quick question regarding the JMS fuel voltage booster... I am installing the DSX aux fuel kit, and inquired with my speed shop about this unit as well. They recommended the DSX kit only, and not the JMS unit. I do see some shops use both the DSX and JMS units together. (for under 1000 whp of course) Not sure if there is any advantage to using both together, but it seems like most on the forum is using one or the other. Thoughts? __________________ 2022 Camaro 2SS/ Whipple 3.0 / 2"Headers/ PRC LTX Heads/ Forged Internals/LT4 fueling/ DSX Aux/ DSX Flex Fuel/ Meth Injection/ Katech 112 TB/ RotoFab Big Gulp/ Corsa NPP/ Various exterior mods

01-11-2023, 03:05 PM	#10
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 6,800	My brother runs JMS on stock pump a long with Cordes Auxiliary on his C7Z. It works fine on his car which is over 1k whp on E60. For anything 900 ish or lower just the Aux pump is likely fine on its own. Long as the pressure doesn't drop then you have enough fuel. My guess is those running JMS and Aux likely started with JMS and ended up needing more fuel as they increased power(as my Bro did), then added the Aux pump. __________________ 2016 NFG 1SS A8 Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA

01-11-2023, 06:02 PM	#11
Sillysspeed Drives: 98 Camaro Join Date: Apr 2022 Location: MD Posts: 274	So is this to regulate voltage or should you just get a bigger in tank pump than lt4 and skip the jms?

User Name		Remember Me?
Password