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-   -   Hemi and GM Ttuck/SUV Drop in 255/340/Hellcat and dual modules available (https://www.performancetrucks.net/forums/fuel-systems-210/hemi-gm-ttuck-suv-drop-255-340-hellcat-dual-modules-available-557184/)

RPMSpeed Tech 05-01-2020 03:59 AM

Hemi and GM Ttuck/SUV Drop in 255/340/Hellcat and dual modules available
 
We had a teaser out for a little bit, so now here is the meat and potatoes so to speak! We have been working on these for quite some time, and have them available now!

There is quite a bit of info and some WS6STORE/RPMSPEED exclusives here so make sure to read the entire post!

We are offering complete drop in module kits with hotwire harness for 99-07 nbs trucks and 07-13 as well. We can do SUV also, but will need to know which suv etc. The modules will be made to order at the moment due to the sheer mass of differences in them for tank sizes, return vs returnless etc. ALL MODULES WILL REQUIRE A HOTWIRE KIT.
Avg wait time will range from 1 day to 7 business days depending on what module and application.

We are also offering modules for 03-19 Ram Hemi 1500s. 2500 will be available also.
We also have an industry exclusive PLUG AND PLAY HOTWIRE HARNESS and DUAL PUMP HOTWIRE HARNESS for 03-19 hemis 1500/2500/3500.

Just like the GM modules every Hemi module will require a hotwire kit. Whether its 255/340/Hellcat or dual pumps.
340/hellcat/dual pump kits will come with NO INTERNAL REGULATOR. They will have the option of adding an 8an feed bulkhead and utilize the factory 3/8 quick disconnect as the return. Super simple then just run a single 8an feed with adj pressure regulator or run the c5 filter with single feed to front. Multiple options available.

More info and pictures later today!!

dantheman1540 05-01-2020 06:50 AM

Piiiccccsssss!!!!!!!!

RPMSpeed Tech 05-01-2020 05:11 PM

Here is our fb post for the dodge units
https://m.facebook.com/story.php?sto...55752837799648

arthursc2 05-03-2020 10:06 AM

What can do for my 02 Tahoe with the "little" mouth fuel tank?

Hellcat 525 pump so I can make 550 on E would be nice 👌🏻

RPMSpeed Tech 05-03-2020 08:16 PM

A hellcat for 550 on E is not necessary. A 340 would fit that just fine.

Get me your GM module pn, ill cross reference and let you know.

arthursc2 05-04-2020 12:40 AM

Yeah, but gotta have room to grow!

What I put in it after my 255 died:

MU2294

19337968

RPMSpeed Tech 05-04-2020 01:15 AM

Room to grow would be a 340. Itll handle in the 700s even properly done. Youre barely getting into its wheelhouse. After that, youre running out of fuel flow on your stock lines anyway even with return.
Youll have to run an aftermarket regulator anyway, or at least i would highly highly recommend it. I assume you may already be though.

Do you have a hotwire harness already and if so it it a new style with the flat bulkhead connector?

Overfueling is not always the best answer. Also make sure you have ans appropriate larger output alternator like at least the 140/160 amp style. Most tahoes etc should, but sometimes dont have them.

arthursc2 05-04-2020 07:16 AM

No Hotwire, factory flex fuel wiring however. Stock flex fuel lines and reg as well. Can upgrade, just don't wanna: still stock rod truck

145 amp alternator is in there with the big 3 and a fat ole ACDelco AGM 👌🏻

Injectors I think are 1000cc. Just needs to support the 3rd iteration of my P1 build, but we've pullied down so peak might be 14-16lbs without the waste gate, 12 with the gate. She'll get the gate unless for some reason I need to close it from the cab for some gapplebeez

RPMSpeed Tech 05-04-2020 12:05 PM

Your 255 likely died due to no hotwire. Factory wiring is still factory wiring, flex fuel or not. Aftermarket pumps need both the voltage and current necessary to even put out their rated volume but also to remain reliable.

A 340 module with hotwire and an aftermarket regulator with aftermarket rails on stock fuel lines would likely be your best setup. Still cost effective but replaces the weak points.

arthursc2 05-04-2020 12:27 PM

The flex fuel wiring is a factory hotwire. It's 8 or 10ga feed and has an additional 10amp on the fuse

the 255 made it 7yrs before it was losing the ability to support fuel over 4K ish

the 255 in my Saturn at it over 10yrs before the car was totaled

I don't think my pump failed due to lack of voltage or supply. I think it failed because Walbro has been falling off in quality the last 10yrs or so, and finding legit ones is increasingly difficult

the real question remains, do you think you'll be able to provide a product for the "small mouth" tanks? Whether it's 525 or 340?


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