JMS Fuelmax Hellcat Fuel System Upgrade Speedy's Garage

[@mikew6135]

Follow the leader around here. Like building a 426 with Thitek heads and big blower and making 1000rwhp. same can be done with a ported factory blower on stock cubes. Very few people even address the valve train which is a problem. We need to rev a little past 7k to make really big power. Ti valves and Manton rockers and shafts would help more than the extra stroke. Why worry about extra torque which is not needed with this platform. We need HP and rpm is a great way to get it with a larger blower.

[@mikew6135]

Kennebell does it of the map sensor but yeah yours is better. LOL. Too funny. Much better than boostapump. The boostapump got a bad rap because early on there was no plug and play. A lot of people did not know how to wire it properly. Now it's a simple process to hook one up. I did mine in the driveway.

[@HCK10]

I got a question please regarding how fuel pump works on our HC, so now the main pump provides fuel to the auxiliary pump (passenger) and from auxiliary to the engine right? If yes then how it sends it to engine through what hose or outlet? Because I know both pumps are connected to each other throughout two lines but where is the line provides the rails or engine?

[@04EP3Hatch]

Hey man! Did you ever figure out the issue for the dual output? Mines got twin pumps installed and two FPCM’s as well (Steve white kit) and I may need to pick one of these up but I want it 100% as I’m sure you did.

[@SpeedysGarage]

There are full tech details in the members area of my channel.

[@ibaca169]

⁠@@SpeedysGaragehow do you find the members area?

[@James-Orr]

Hope you get it ironed out where is works correctly. Jon-Moored Performance on Hellcat forum is recommending one of these on my Redeye once I start modifying it. I assume they are more reliable than they used to be. I am stalling in case I go Whipple but if not I have a Griptec Litens 2.85 for the stock blower.

[@SpeedysGarage]

On a Redeye it probably works great and is a good option. On this dual drop in upgrade fuel system it's not compatible about of the box and some extra stuff although simple, is needed to make it work.

[@James-Orr]

@@SpeedysGarage I forgot to mention BaileysHyperformance offers a modified bypass valve with a stronger motor so they can stay closed when commanded.

[@SpeedysGarage]

Thanks for the info!

[@jcasey460]

Hi Speedy...good explanations of fuel system and what to look for as usual. Not specifically on topic but can't find the vid...Do you still use the fuel transfer pump that I believe your wife gave to you. I've been looking for the vid to find the brand. Thanks

[@SpeedysGarage]

This it? amzn.to/3YUcpqQ

[@jcasey460]

@@SpeedysGarage That's it. Hopefully you'll put up some track vids this season. Expecting to see some new PBs from you :).

[@thescooter135]

Hey man, did you ever do a video of the swap from a single pump to a dual pump? I looked and didn’t see it

[@SpeedysGarage]

A lot of the how to stuff is under the Members section.

[@thescooter135]

@@SpeedysGarage hey man, when you switched to a triple pump did you keep all the wiring from the double pump? If so are you interested in selling the wiring for it?

[@yellowhellcat]

I had trouble getting it to work on my dual drop-in setup as well. Does the extended (paid) version of the install go into detail on what you had to do to get it to work?

[@SpeedysGarage]

If you're having the problem where fuel pump continues to run after key off, then I believe I have the fix for that in the members section video.

[@yellowhellcat]

@@SpeedysGarage sounds good. I was able to get mine to turn off but that was a problem initially. Are you able to verify the added voltage with HPTuners?

[@Mr.Extraextraordinaire]

Did you get the single pump or the dual pump jms ? I have drop in dual pumps myself but i was recommended from my tuner to get the single pump jms because of the dual pump jms setup have issues

[@SpeedysGarage]

I got the dual JMS. It was advertised to work on the drop in system but turns out it doesn't without some extra work.

[@alantackett4819]

Speedy’s garage, How did you connect the throttle body harness with the system being for a cord?

[@terrykaz5095]

Why didn't you use the Kenny Bell system for the Challenger?

[@SpeedysGarage]

I didn't like that it requires a boost reference, hobbs switch, and isn't as programmable as the JMS.

[@patrickmiller8388]

great video and content

[@exploranator]

Being the best generation of Hellcat, could you not have fit 1" thick spacers under the supercharger? This could provide more airflow under supercharger, for better cooling. The extra length on the intake runners is obviously nothing the engine needs, as it already makes mounds of torque down low, but, hey, if you can, why not? Granted, with less clearance under the hood, the cooling airflow over the top of the blower could be reduced.

[@Mopar_Roc]

They are junk

[@mikew6135]

Fron the factory? You are running an aftermarket dual pump. You aremt factory. Full throttle is better than a hobbs switch. If you say so👍

[@mikew6135]

You want original content. Imstall a PWM capable inline Magnafuel pump or other that will provide MORE than enough fuel. Or just follow the crowd with these bandaid dual pumps

[@mikew6135]

Anyone think outside the box and run a big Magnafuel with a fpcm hooked to it. These multi slave systems are so inefficient.

[@stevenwing2370]

I was actually disappointed with the detail of your install. Then I read where people are paying to join your channel and see the complete video. Well I guess nothing is free in life. Good luck and maybe someday I'll join but for now it's not my thing.