[teddyca]

So I am pretty sure I know the answer here, but not sure if either car will really benefit from the JMS Fuelmax voltage booster.

Car#1 My Camaro. Maggie 2300, intake, xpipe, catback. Thats it nothing more nothing less. No plans to upgrades LT1 fueling, and at close to 600rwhp I know I am at the fuel limits so I dont see this being of any benefit. I do plan on adding Flexfuel for E85.

Car#2 My C7 Corvette. Currently having LT1 rebuilt with forged internals, BTR stage 2 cam, LT4 HP pump, LT4 injectors, A&A Ti system, dual meth, E85, fuel exhaust. Shooting for about 800rwhp. No idea if the booster will benefit me.


I initially bought the JMS for the Camaro and decided against it but would love your thoughts. I really have no idea if it will help either car or if I should just sell. I would love your thoughts.

[radz28]

One of the comments I've seen a couple times around here are something about how the JMS drains the battery - somehow. I haven't, admittedly, done a lot of research yet, but I noticed those comments. I know there were some questions about how to properly power it, and what to tap-into, but don't know if that resolved the battery drain issue. That's what has kept me from really looking into it. Maybe it might give you a little headroom, but, perhaps, a supplemental low-side (like a DSX, for example) might be the better option. I bet you're going to need it for E' though...

Or I'm completely wrong, ha... I know there are guys that use them, and calibrators to suggest them, so it likely depends on what you're trying to do. If your high-side pressure doesn't fall much, and you're less than 6ms on IPW, maybe you'll be okay, from what I've read.

JMHO.

[L78toLT1]

I don't believe you will be able to run much e on your setup, even with the jms. I'd throw it on the Camaro and log to determine the limits of your fuel system. Btw: i've been running a jms for se eral years and have never experienced any battery issues. My car frequently sits for weeks between starts, so I am confident that the jms isn't draining the battery.

[Joshinator99]

Originally Posted by L78toLT1

I don't believe you will be able to run much e on your setup, even with the jms. I'd throw it on the Camaro and log to determine the limits of your fuel system. Btw: i've been running a jms for se eral years and have never experienced any battery issues. My car frequently sits for weeks between starts, so I am confident that the jms isn't draining the battery.

Same here. Sometimes it’ll be weeks between drives in the Camaro and have not had any battery issues with the JMS.

[Eldi Z]

What if there is already LT4 fueling in place and still no plans to go over 600 WHP on 93' no E content, nor meth or additional supplementary fuel components?
Is there a real benefit to add a BaP / JMS ?

[KingLT1]

From what I have heard the JMS works better on SS cars that have a FSCM but not as well on LT4 ZL1/Z06 cars that have a CCM controller. Either way I run one on my SS and don't notice any battery drain issues.

I would put the JMS on the Camaro and either do a aux pump setup or better intank setup on the Vette.

Neither setup will be able to run full E. You will be mixing E50-E60 range on both.

[JANNETTYRACING]

Originally Posted by KingLT1

From what I have heard the JMS works better on SS cars that have a FSCM but not as well on LT4 ZL1/Z06 cars that have a CCM controller. Either way I run one on my SS and don't notice any battery drain issues.

I would put the JMS on the Camaro and either do a aux pump setup or better intank setup on the Vette.

Neither setup will be able to run full E. You will be mixing E50-E60 range on both.

The JMS works fantastic on Every car we have installed it on, GM Ford and Chrysler.

Camaros, Vettes, Sedans, Trucks, etc

[radz28]

Originally Posted by JANNETTYRACING

The JMS works fantastic on Every car we have installed it on, GM Ford and Chrysler.

Camaros, Vettes, Sedans, Trucks, etc

Hi Ted,

Have you noticed any battery-drain-issues?

[JANNETTYRACING]

Originally Posted by radz28

Hi Ted,

Have you noticed any battery-drain-issues?

These cars will drain the battery without the JMS and no different with it.

My battery lasts about 6 weeks in storage and it goes dead, there is a constant draw on the battery for the security system and other electronics.

Best practice is a trickle charger for any storage beyond 4 weeks.

Ted.

[radz28]

Originally Posted by JANNETTYRACING

These cars will drain the battery without the JMS and no different with it.

My battery lasts about 6 weeks in storage and it goes dead, there is a constant draw on the battery for the security system and other electronics.

Best practice is a trickle charger for any storage beyond 4 weeks.

Ted.

OH - I know. I keep mine on a trickle charger all the time. I know of another car that almost can't have the ECM-flashed without being on at least a trickle charger, and that car has but a couple thousand miles on it and is only 2-years old. But I'm asking if you've heard or seen any evidence to support the comments stating adding a JMS-type booster will drain it faster?

Thank you for your comments.

[Joshinator99]

Originally Posted by JANNETTYRACING

These cars will drain the battery without the JMS and no different with it.

My battery lasts about 6 weeks in storage and it goes dead, there is a constant draw on the battery for the security system and other electronics.

Best practice is a trickle charger for any storage beyond 4 weeks.

Ted.

[JANNETTYRACING]

Originally Posted by radz28

OH - I know. I keep mine on a trickle charger all the time. I know of another car that almost can't have the ECM-flashed without being on at least a trickle charger, and that car has but a couple thousand miles on it and is only 2-years old. But I'm asking if you've heard or seen any evidence to support the comments stating adding a JMS-type booster will drain it faster?

Thank you for your comments.

I have not seen any evidence that it drains the battery, I have them on 2 of my cars.

I am told by JMS that they go to sleep when not in use.

[teddyca]

Thank you everyone. I agree I dont think I can run for E85 but instead a blend is the plan. I installed a gauge to monitor ethanol content. If I didnt already have the JMS I would likely not order one for either car but since I have it, I was curious who should get it. I appreciate all the feedback. Camaro it is.