What happened at Sema

Enjoy college in Arizona! Actually at 750 you might....be ok. You'd need to do some research on that one. I'm not sure how many drivetrain changes there are between the RHO and the TRX if any and I'm too lazy to look it up. Our driveshafts are crap to begin with. But 1000? Way-O brother, that's a whole 'nother universe there.
Thanks! I want to get around 750 to start out with and then once people start doing 1000 builds eventually and reliably, if i still have the truck, copy one of those builds as long as its not outrageously expensive. but i know that the trx has a heavier duty transmission and some underchassis components.
 
If 1000 hp was in your plans then a TRX would have probably made more sense from the get go. I've never chased hp #'s, more so times to judge results, sometimes whp doesn't translate to "beating" something theres alot more to it like weight, powerband, etc...But dont get me wrong I think it would be amazing to see you get to 1000hp.

Personally I think something around 700hp would be the sweet spot for the RHO, trans should be safe, it seems all we really need is a true tune, maybe a few bolt ons's / downpipes to get there. Doubt we need new turbos. A true tune could really take advantage of something like the new Mishimoto Aux intercooler too, if IAT's are down theres more room for timing. Might have to run colder plugs or something as well. Trans tuning would help us out a ton. It would also be nice to see something be able to bump up brake line pressure as it sounds thats all they did on the 27 TRX.

Should we start a list of people who would buy a full tune? Would that help get someone in the aftermarket moving on it a little quicker?
 
6.4 non boosted is way down on power and torque vs a hurricane. Not even close. Also not super simple... more pistons, vvt , afm, v configuration is more complex and less durable than i6 generally. The list goes on... sound and initial throttle response are all it’s got. I personally like the sound of my rho.
Initial throttle response is a big thing though and it makes a lot of sense on a large heavy truck. I’ve had 5.7 hemi v8 rebel and now the hurricane in the rho. Hurricane for sure has many advantages. But the V8’s throttle response is very important.

And yes of course there is sound which is stating the obvious.

Now throw a factory supported supercharger on it and you have a complete package. Which is a shame because a factory tuned Hurricane would definitely change the overall feel of this truck. Since mopar seems to be ignoring this platform, the 6.4 rumble bee certainly is looking like a strong alternative.
 
If 1000 hp was in your plans then a TRX would have probably made more sense from the get go. I've never chased hp #'s, more so times to judge results, sometimes whp doesn't translate to "beating" something theres alot more to it like weight, powerband, etc...But dont get me wrong I think it would be amazing to see you get to 1000hp.

Personally I think something around 700hp would be the sweet spot for the RHO, trans should be safe, it seems all we really need is a true tune, maybe a few bolt ons's / downpipes to get there. Doubt we need new turbos. A true tune could really take advantage of something like the new Mishimoto Aux intercooler too, if IAT's are down theres more room for timing. Might have to run colder plugs or something as well. Trans tuning would help us out a ton. It would also be nice to see something be able to bump up brake line pressure as it sounds thats all they did on the 27 TRX.

Should we start a list of people who would buy a full tune? Would that help get someone in the aftermarket moving on it a little quicker?
unfortunately, i had to get a brand new truck, and they were not making the trx in 2026 or i would have gottne one. but the rho is still a lot of fun and honestly i think it has more potential than the trx due to the reduced weight over the front axles and better handling and breaking. it really shows off in jumps and going 118mph down gravel roads.
 
My only gripe is the small backseat.
Ditto, We were bitching about it to the dealer when we bought our RHO and the sales guy said thats been everyones complaint about them as well.
 
unfortunately, i had to get a brand new truck, and they were not making the trx in 2026 or i would have gottne one. but the rho is still a lot of fun and honestly i think it has more potential than the trx due to the reduced weight over the front axles and better handling and breaking. it really shows off in jumps and going 118mph down gravel roads.
Totally understand. I am not trying to poo poo your plans at all. I've always been drawn to the more underdog vehicles / builds. Couldnt tell you why just was always a thing with me lol. So when you say you want to do something and its not the simplest route I 100% get it. When the Hurricane HO first came out and everyone was bitching that its not a HEMI I was dismayed, like did anyone even look into it before shitting on it? Its a great power plant, and what else comes forged out the box? Not alot that I'm aware of. They did not cheap out with this motor and I wouldn't doubt thats part of the reason they want to get back to / focus on the hemi's, I would bet good money the NA V8's are FAR less costly for them to produce and the 6.2 is probably a wash.

I agree, the RHO is great, I like it WAYYY more then I thought I would. I came from a 25 Limited with the HO and a Cat6 and honestly the RHO with the Cat6 feels better, way more playful. The Limited always felt "limited" lol. The tuning on it felt like it needed a overhaul or something...maybe the new ones are better. I know the limited is technically faster, but it doesn't necessarily feel faster and for sure to me did not feel more "fun". The only place the RHO feels different to me is punching it on the thruway and its those 35's. But at least we get to go to 118mph and not 104...that shit really bothered me for some reason. (On that note pretty excited to see whats going on with the Cat6 regarding the custom tunes / no limter)

Really debated a TRX but couldn't justify 30k more for a few tenths faster (factoring in a piggyback of course). Crazy to me you are paying that much more for them to remove the HO motor and replace it with another motor and slightly better trans. Oh and some red trim here and there lol

I applaud your goals, and I do think this motor/platform has not seen anywhere near its full potential in the real world yet. I just hope the aftermarket does not ignore it even if Stelantis is going to.

Side note but I also just came across the ATI damper for the hurricanes on 797, had no idea that came out, thats usually another 10+ WHP.
 
I would be very surprised if the ATI damper ever added any power. And the inline 6 is inherently a well balanced motor.
 
I would be very surprised if the ATI damper ever added any power. And the inline 6 is inherently a well balanced motor.
Is it? I honestly dont know, I know on the EA888 and LS1 it was about that

edit: (I should clarify- as far as gains, independently dynoed from what I've seen over the years) but yeah I could see it not making much of a difference on a more balanced rotating assembly
 
The ati is more about dampening then power, lightweight crank pulley and underdriven accessory pulleys are what add a little power, never was a fan of those though
 
The ati is more about dampening then power, lightweight crank pulley and underdriven accessory pulleys are what add a little power, never was a fan of those though
It doesn’t add any power. It doesn’t claim to add any power. The reduction pulley claims to use less power that the engine is already making to drive accessories. The trade-off is they are driven at a slower rate so they may not function well enough at idle or lower RPMs. With the electrical system on this truck, I definitely would not drive the alternator slower than the system is expecting. The damper will have a little to no effect on the hurricane motor. It is already an incredibly smooth motor. It is also not a very high rpm motor so again little to no gain with the VTI.
 
New 4.0 I6 short block? Say YES!!!!!
that would be awesome but I do not see a larger discplacment one coming but they should consider like a 5.0 hurricane and put in the HD that would be incredible
 
I'm moving on to a NA 6.4L RumbleBee whenever they become available. I'm kinda over the teeny tiny engines with turbos thing.
6.4 rumble bee is going to be a blast I am looking forward to driving one soon.
 
The ati is more about dampening then power, lightweight crank pulley and underdriven accessory pulleys are what add a little power, never was a fan of those though
It doesn’t add any power. It doesn’t claim to add any power. The reduction pulley claims to use less power that the engine is already making to drive accessories. The trade-off is they are driven at a slower rate so they may not function well enough at idle or lower RPMs. With the electrical system on this truck, I definitely would not drive the alternator slower than the system is expecting. The damper will have a little to no effect on the hurricane motor. It is already an incredibly smooth motor. It is also not a very high rpm motor so again little to no gain with the VTI.

Just curious, what are your 2 cents on why this (seems) to work then? I didn't remember correctly, this one is a Fluidamper not a ATI so not sure if there are differences there, but this part # is not underdriven. I'm not trying to prove a point or anything I was just always under the impression these where good for some Hp. EA888 not a well balanced motor maybe?

https://motoiq.com/project-golf-r-mkvii-fluidampr-test/3/
 
Just curious, what are your 2 cents on why this (seems) to work then? I didn't remember correctly, this one is a Fluidamper not a ATI so not sure if there are differences there, but this part # is not underdriven. I'm not trying to prove a point or anything I was just always under the impression these where good for some Hp. EA888 not a well balanced motor maybe?

https://motoiq.com/project-golf-r-mkvii-fluidampr-test/3/
It’s about the cylinder configuration. Inline 6 cylinder is inherently balanced. Rod journals are at 120°. The 120° offset allows the two pistons that are traveling down in the cylinder cancel out the vibration of the one traveling up in a cylinder. Pistons traveling upward, travel faster than those traveling downward in the upper half of the cylinder due to crank rod angle. The Hurricane Ho also has a forged crank. There just isn’t a problem for the damper to fix or control. I don’t know if they are, but it wouldn’t surprise me if the Pistons in the hurricane are also balanced sets. The VTI doesn’t make horse power it just helps cancel vibrations that rob power.
It’s a not of easy thing to explain in a paragraph. So I find myself editing and trying to re-word things to make sense a little better. The full answer would take several pages to explain thoroughly.
 
Last edited:
Show me your pie! TRX ORDERS OPEN! What did you do to your RHO Today? (2025) RHO Orders @ Mark Dodge! $9K-$11K Dealer Discount (Before incentives) RHO theft already started!! What did you do to your RHO Today?
Show me your pie! TRX ORDERS OPEN! What did you do to your RHO Today? (2025) RHO Orders @ Mark Dodge! $9K-$11K Dealer Discount (Before incentives)

Trending content

Back
Top