2025 I6 - JB4 Tuner

[bshelton8]

I was able to put the JB4 through some test runs along with a road trip. Here is a link to the video I made with my first impressions along with some live 0-60 runs.

 

[HSKR R/T]

I was able to put the JB4 through some test runs along with a road trip. Here is a link to the video I made with my first impressions along with some live 0-60 runs.

The 4000 RPM Rev limiter in park/neutral is to protect engine. Even normally aspirated engines have it. It's not good to rev the engine high without a load on it. Also, turbos won't build boost without A load on the engine. And if you notice in your own video, boost starts building well before 4000rpm

 

[mdolan82]

I was able to put the JB4 through some test runs along with a road trip. Here is a link to the video I made with my first impressions along with some live 0-60 runs.

Awesome thanks for video. On that note I saw you have the K&N intake but haven't seen you discuss/review just the intake as it looks like you had prior to JB4.
Curious if you noticed any difference with the intake alone?

 

[bshelton8]

Burger just released the alpha code for the JB4 on the 2025 Ram 1500 Hurricane I6. Here is a link to the video I created on updating the firmware on the JB4.

 

[bshelton8]

Awesome thanks for video. On that note I saw you have the K&N intake but haven't seen you discuss/review just the intake as it looks like you had prior to JB4.
Curious if you noticed any difference with the intake alone?

I didn't really notice much of a difference. There was probably only a weeks time between me installing the K&N and the JB4. I do think the open air box allows a little more sound out of the engine bay.

 

[mdolan82]

Really waiting to see IGM Auto's Dyno, and Map 0 - 3 on JB4.
I'm curious with the HO as the SO and CAT 1 both are advertised as 420/469 but the truck HO is advertised -10/-10 of the CAT 3, curious why and if it was just a paper difference

 

[sdamike]

I was able to put the JB4 through some test runs along with a road trip. Here is a link to the video I made with my first impressions along with some live 0-60 runs.

Thanks for sharing, excellent video. I was probably going to get the JB4 but now I am for sure going to get it. That speed limiter at 104 is disappointing though, I hope the market comes up with a solution for that other then just a "real" tune. Granted I'm not planning on doing any top speed runs but limiting to 104 makes me feel like I'm driving something with a handicap on it, which after spending all this money on a new powerful truck is pretty lame.
Also where did you pick up the K+N intake at where it was actually in stock? Is it a actual closed box system? (Hard to tell if I was looking at stock photos on K&N's website or if it was of the actual intake)
Curious, can you hear the blow off's any better with it? I personally like all the turbo noises and want to hear more lol

 

[bshelton8]

Thanks for sharing, excellent video. I was probably going to get the JB4 but now I am for sure going to get it. That speed limiter at 104 is disappointing though, I hope the market comes up with a solution for that other then just a "real" tune. Granted I'm not planning on doing any top speed runs but limiting to 104 makes me feel like I'm driving something with a handicap on it, which after spending all this money on a new powerful truck is pretty lame.
Also where did you pick up the K+N intake at where it was actually in stock? Is it a actual closed box system? (Hard to tell if I was looking at stock photos on K&N's website or if it was of the actual intake)
Curious, can you hear the blow off's any better with it? I personally like all the turbo noises and want to hear more lol

I got the K&N cold air intake directly from them. They give a 30% discount to military. You have to call them on the phone and order to get the military discount. The open box design does allow a little more sound from the engine compartment. If you listen really really close you can hear the blow off.

I am impressed with Terry Burger. He has worked with me quite a bit to get things dialed in. He really wants to get the JB4 dialed in on the HO Hurricane to help everyone.

 

[sdamike]

I got the K&N cold air intake directly from them. They give a 30% discount to military. You have to call them on the phone and order to get the military discount. The open box design does allow a little more sound from the engine compartment. If you listen really really close you can hear the blow off.

I am impressed with Terry Burger. He has worked with me quite a bit to get things dialed in. He really wants to get the JB4 dialed in on the HO Hurricane to help everyone.

Nice, Thanks for the pics.

That's great to hear you guys are working on that, making it as good as it can be.

Hmm, I wonder how long till we will have options for a exhaust and something for the top speed?

 

[athayer]

I just installed jb4 on my bighorn SO and so far I'm pretty impressed. Same day testing conditions so ruling out any variables. 0-60 went from 4.84 to 4.61. Eighth mile 8.54@80mph to [email protected]. Only hiccup so far is trying to email logs and extremely high IATs so no quarter mile runs till I figure that out. All runs were made on map1

 

[Phoon]

I just installed jb4 on my bighorn SO and so far I'm pretty impressed. Same day testing conditions so ruling out any variables. 0-60 went from 4.84 to 4.61. Eighth mile 8.54@80mph to [email protected]. Only hiccup so far is trying to email logs and extremely high IATs so no quarter mile runs till I figure that out. All runs were made on map1

How are you measuring 0-60?

 

[athayer]

How are you measuring 0-60?

I use a dragy. Did several runs stock and map1 just to verify results.