aFe scorcher

[WXman]

I’ll ask my AFE rep in the morning but I assume it’s the same positioning downfall the 3.0 lost other factory power numbers for. We pay the price of a skinny 30” water forder

Yeah I mean, the HP numbers are identical between the two engines, and if you look at dyno sheets on stock engines you can clearly see where they cap the Jeep at 442 lb/ft with a hard wall, whereas the Ram keeps climbing naturally to 480 before decreasing. So it looks pretty obvious that they are simply using software tuning to "detune" the Jeep version.

One would think that if tuning caps the Jeep, then tuning could uncap the Jeep and numbers between the two engines should match.

So it becomes a question of, did they provide less power gain with the AFE tuner because they couldn't make more, or did they choose to do so for safety?

Sponsored

 

[QuickOne]

Yeah I mean, the HP numbers are identical between the two engines, and if you look at dyno sheets on stock engines you can clearly see where they cap the Jeep at 442 lb/ft with a hard wall, whereas the Ram keeps climbing naturally to 480 before decreasing. So it looks pretty obvious that they are simply using software tuning to "detune" the Jeep version.

One would think that if tuning caps the Jeep, then tuning could uncap the Jeep and numbers between the two engines should match.

So it becomes a question of, did they provide less power gain with the AFE tuner because they couldn't make more, or did they choose to do so for safety?

Related to this point - Jeep capped the towing capacity of the diesel due to an inability to control temps through the 7-slat grill while towing. That could also be the reason why they capped it, and why it remains capped for the tuners - reliability.

Same engine in the Ram makes more tq due to larger area to get fresh air through to cool it.

 

[Deola]

Related to this point - Jeep capped the towing capacity of the diesel due to an inability to control temps through the 7-slat grill while towing. That could also be the reason why they capped it, and why it remains capped for the tuners - reliability.

Same engine in the Ram makes more tq due to larger area to get fresh air through to cool it.

I spoke with AFE, it’s due to airflow as you guys guessed. The jl/JT platform just needs more air to be more powerful safely. I have obtained a sponsorship from AFE and maybe when my intake comes finally in I’ll try turning the tuner up slowly and hope it takes it…

 

[Deola]

I spoke with AFE, it’s due to airflow as you guys guessed. The jl/JT platform just needs more air to be more powerful safely. I have obtained a sponsorship from AFE and maybe when my intake comes finally in I’ll try turning the tuner up slowly and hope it takes it…

Quick update everyone. I was told by my rep that the best mpg gains were on sport + mode or even more on race mode if driven easily. I’ve been testing out the race mode and over 1.5 tanks of fuel(50 cetane) I’m averaging 28.2 mpg on the factory muds with my rubi… and where I live in VA is nothing but hills/mountains. The issue I have run into twice now… I have had a check engine light throw on the interstate (70mph so I average 76-78 mph)… Both times it read P026D-00 fuel injection quantity “A” higher than expected. Going to contact AFE today and seek further explanation and hopefully a solution. I’ll post more when I know more.

 

[Deola]

Quick update everyone. I was told by my rep that the best mpg gains were on sport + mode or even more on race mode if driven easily. I’ve been testing out the race mode and over 1.5 tanks of fuel(50 cetane) I’m averaging 28.2 mpg on the factory muds with my rubi… and where I live in VA is nothing but hills/mountains. The issue I have run into twice now… I have had a check engine light throw on the interstate (70mph so I average 76-78 mph)… Both times it read P026D-00 fuel injection quantity “A” higher than expected. Going to contact AFE today and seek further explanation and hopefully a solution. I’ll post more when I know more.

 

[Deola]

I attached a video of acceleration in race mode. Hopefully it loads for everyone.

 

[Pescatoral Pursuit]

I attached a video of acceleration in race mode. Hopefully it loads for everyone.

Do you have some follow up?

 

[WXman]

Related to this point - Jeep capped the towing capacity of the diesel due to an inability to control temps through the 7-slat grill while towing. That could also be the reason why they capped it, and why it remains capped for the tuners - reliability.

Same engine in the Ram makes more tq due to larger area to get fresh air through to cool it.

Thanks to Green Diesel Engineering, we have since learned more about this. The Ram and the Jeep actually both make 442 lb/ft in all gears. The Ram is programmed to allow up to 480 lb/ft ONLY in 6th gear under certain situations. They did this so they could technically claim best in class torque output. In practicality, the Jeep and Ram are making identical power.

and maybe when my intake comes finally in I’ll try turning the tuner up slowly and hope it takes it…

Good luck with that. I ordered the intake from them 6-7-2021. They are pushing ship date back every month, and now they're out to 2-1-2022 which I'm sure will be pushed out again after the holidays.

 

[kilroy173]

Any updates on the reliability and drivability of the scorcher? Does it help with pedal lag like a pedal commander or pedal monster does?

 

[Deola]

Any updates on the reliability and drivability of the scorcher? Does it help with pedal lag like a pedal commander or pedal monster does?

Sorry for my absence gentleman. The scorcher unit has been removed from my JT after putting my Jeep in limp mode twice. I worked with AFE(when they would respond)and they sent a revised tune. It went into limp mode the second time after that tune was in place. When it worked it was enjoyable, but I just can’t have that kind of reliability issue on my Jeep.

 

[Gren71]

Sorry for my absence gentleman. The scorcher unit has been removed from my JT after putting my Jeep in limp mode twice. I worked with AFE(when they would respond)and they sent a revised tune. It went into limp mode the second time after that tune was in place. When it worked it was enjoyable, but I just can’t have that kind of reliability issue on my Jeep.

whoa! Any idea why it went into limp mode? I never had that issue with mine.

 

[Deola]

whoa! Any idea why it went into limp mode? I never had that issue with mine.

Threw 27 codes, not sure which one is the one that made it limp. The second time around it jerked and shutoff while cruising at 60mph

 

[Gren71]

Threw 27 codes, not sure which one is the one that made it limp. The second time around it jerked and shutoff while cruising at 60mph

Brutal, sorry to hear that. Maybe its the difference between the 3.6 and the diesel that caused our different experience. Ive read elsewhere on the forum that some guys have shyed away from the diesel because of how complicated the engines have become in recent years.

Sponsored