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Spent the past two morning swapping a fresh manifold, injectors, and then all the swap wiring. Did I need two days? No. But sunny cold weather taking my time, and doing a clean install was more important

Poking around doing research, people claim the 5.7 injectors are fine. I just kept the 6.4 ones and installed them with the manifold, and i have to say she actually idles smoother..maybe my high mileage made my original ones a little dirty and rough, but getting her street tuned later this week to adapt to the injectors. All good so far
I was surprised to see the heads this dirty, put new gaskets about 10k miles ago and i don’t remember the runners being that filthy...92K miles builds up i guess. Spent the better part of 2 hours cleaning the runners with some brake cleaner on a rag and a vaccuum, while sealing up the ports with paper towels
Manifold drops in nice and easy, catch can setup is a tad wonky until some new lines comes in. MSD sits nicely I used an existing hole on the fender wall, took a 8-32 rivnut and a button head screw, drilled a few more to match for the relay.
Followed factory harness to keep the look clean, used info all found here on the forum. Did not need the cirkit boss, however if you dont already have an assortment of wire, terminal ends, and butt connectors then i guess their product comes more “complete” but having some at my disposal, the leash electronics relay bus worked great and for only $20 vs $90 for the cirkit boss

All in all, a GREAT mod, instant gains she pulls all the way to redline now instead of falling on its face after 4500 rpm... definitely noticeable torque down low too.
Once you modify your tune to take advantage of this mod, you should really feel a difference.

One question about the hardware: what function does the MSD box serve?
 

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Discussion Starter #22
Once you modify your tune to take advantage of this mod, you should really feel a difference.

One question about the hardware: what function does the MSD box serve?
Its original purpose is to activate nitrous i believe at your desired RPM. But it just sends a signal based on rpm (or other inputs, there were a couple wires not used) to the active runner motor replicating a factory wiring harness. Since my vehicle doesnt have this option
 

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Its original purpose is to activate nitrous i believe at your desired RPM. But it just sends a signal based on rpm (or other inputs, there were a couple wires not used) to the active runner motor replicating a factory wiring harness. Since my vehicle doesnt have this option
So does it have an interface available to the user, or is there any way to access its settings (trip parameter, inputs, etc) to either just view their values or even make changes to them?
 

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Discussion Starter #24
So does it have an interface available to the user, or is there any way to access its settings (trip parameter, inputs, etc) to either just view their values or even make changes to them?


You just manually set the ROM when to open, close, and the mode. Set and forget. Simple enough
 

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You just manually set the ROM when to open, close, and the mode. Set and forget. Simple enough
well that sounds positively boring! 🤨

Why can’t we fiddle with more of the innards?!?

What are they trying to hide??

It Must be something good...like a secret extra 50 HP you get after paying more $$ for the unlock key. 🤘

I better get me one to take apart and see for myself! 🤓
 

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Discussion Starter #26
well that sounds positively boring!

Why can’t we fiddle with more of the innards?!?

What are they trying to hide??

It Must be something good...like a secret extra 50 HP you get after paying more $$ for the unlock key.

I better get me one to take apart and see for myself!
I wish that was the case still got positively gapped by a stock 392 last night lol.


I got all the parts for sub $400 for the swap and did the labor myself
 

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Slap on a supercharger and cam for good measure and that gap goes the other way. :) I guess having a big vinyl stripe with RT at one end seems to compel people to want to overtake me whenever they get a chance. :unsure: Yes for the money I could have started off with a Scat from the get go but the look on peoples faces when they are expecting an easy kill but don't get it is priceless. Also usually ends up with a cool conversation at the next light.
 

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I still wonder if the SRV can be enabled in the tune and wiring harness to tapped into the PCM? I mean the 5.7 RAMS run SRV don't they...although not sure if they also run the GPEC or NGC4 controllers? I mean that is how the RAMs make the extra ponies at higher RPMs.

Table to enable SRV operation in HP tuners.

View attachment 984119

PCM wiring

View attachment 984121
View attachment 984120
It would be nice to be able to just run in like that. I wonder if there is a difference with the ECU's for the cars that come equiped? I would think to save on production costs they would all have it for all. It would be nice to confirm.

While on the tuning topic... Is there a way to access the Traction Control? My wife picked up a Ram, I decided to see what all it could do after the break-in. In the process I had it sideways with the TC off but after a few seconds it still cut the power. Not sure if there is an issue or if that is how it's tuned.
 

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I believe the controllers are the same but they run a different calibration. As for TC, if you change one of the flags for engine types to a different displacement it apparently turns off ESP...although on challengers it does not seem to work but might on Rams.

You can remove a fair chunk of TC from the tune but I think ESP is still unaffected.

My problem with the challenger is if I go sideways I can feel ESP fighting me. Only way around it is to use Tazer to defeat all ESP (have it programmed on one of the Aux buttons on the steering wheel) which also turns off ABS.
 

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So I looked up a 2015 Ram stock tune and sure enough SRV is equipped. Now the PCM is a different part number but that could be due to the fact that the calibration (tune) is different. I am really beginning to think that tapping the wire harness of the 6.4 manifold into the PCM (if you can get the correct pins to fit in the PCM connector) should work. I have yet to see anyone successfully try this though. If I did not go supercharged I would have given this a go.
984314
 

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So I looked up a 2015 Ram stock tune and sure enough SRV is equipped. Now the PCM is a different part number but that could be due to the fact that the calibration (tune) is different. I am really beginning to think that tapping the wire harness of the 6.4 manifold into the PCM (if you can get the correct pins to fit in the PCM connector) should work. I have yet to see anyone successfully try this though. If I did not go supercharged I would have given this a go.
View attachment 984314
I believe the controllers are the same but they run a different calibration. As for TC, if you change one of the flags for engine types to a different displacement it apparently turns off ESP...although on challengers it does not seem to work but might on Rams.

You can remove a fair chunk of TC from the tune but I think ESP is still unaffected.

My problem with the challenger is if I go sideways I can feel ESP fighting me. Only way around it is to use Tazer to defeat all ESP (have it programmed on one of the Aux buttons on the steering wheel) which also turns off ABS.
Josh with HHP was able to remove it completely with my tune. Maybe there is a bug with HP Tuners that needs to be fixed. I heard with the Diablo software they had to work out quite a few issues along the way. May not hurt to give support call!? just a thought.
 
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