In reply to Pete. (l33t FS) :
That tech manual is a little dated, at least with respect to the highest output B58s. Some of the updates include going to a single piece timing chain and separate coolant flows for the block and the head.
In reply to Pete. (l33t FS) :
That tech manual is a little dated, at least with respect to the highest output B58s. Some of the updates include going to a single piece timing chain and separate coolant flows for the block and the head.
Dusting this one off, because power figures are now out since these Hurricane Inline 6's will be in the refreshed Ram lineup.
The Hemi V-8 is going away, and aside from the entry level Pentastar V-6, the other two engine options are:
The "Standard Output" 3.0 twin turbo inline 6: 420 horsepower / 469 ft. lbs. of torque
and..
The "High Output" 3.0 twin turbo inline 6: 540 horsepower / 521 ft. lbs. of torque
Is this baffling to anyone else?! That seems absurdly high output for a 3.0 inline 6 gas engine in factory stock trim, let alone in a truck platform.
By comparison, while seemingly apples to oranges, the BMW M3 competition with it's twin turbo 3.0 makes 503hp / 479 lb.ft. (or the starting at $120K M3 CS makes 543hp / 479 lb.ft.) on 30.5psi.
What am I missing here? What can we swap this into when these start hitting the yards?
In reply to xflowgolf (Forum Supporter) :
Modern technology, William! 
For perspective, MBZ has a 2 liter four making 425hp in some applications.
Pete. (l33t FS) said:In reply to xflowgolf (Forum Supporter) :
Modern technology, William!
For perspective, MBZ has a 2 liter four making 425hp in some applications.
I mean I get that to a point, but we're talking about the HO Hurricane I-6 3.0 making 540hp/521ft.lb. That's out-outputting ze Germans at the pointy end of their 2024 high performance offerings. ...and in a half ton pickup no less.
Is there a higher output 3.0 in stock configuration anywhere?
In reply to xflowgolf (Forum Supporter) :
This is coming from the company that was happy to sell 800hp cars with a warranty, so I'm guessing that if anyone has a decent handle on how to make something like this not blow up, they probably do.
Another factor is that I expect BMW cares about how the powerband feels, not adding more power than their desired transmission can handle, etc. In this case, big numbers sell, so make the power and then worry about what to do with it after.
rslifkin said:In reply to xflowgolf (Forum Supporter) :
This is coming from the company that was happy to sell 800hp cars with a warranty, so I'm guessing that if anyone has a decent handle on how to make something like this not blow up, they probably do.
Another factor is that I expect BMW cares about how the powerband feels, not adding more power than their desired transmission can handle, etc. In this case, big numbers sell, so make the power and then worry about what to do with it after.
I'm no transmission engineer, but I do believe those two vehicles happen to use a similar transmission... the Ram being a "Torqueflite 8-speed" which I understand to be a ZF sourced 8-speed (ZF 8HP... the 8HP75?), and the new G80 M3's utilize the ZF 8HP... the 8HP76.
Who cares. Stellantis is already incapable of designing a clutch that can hold the 300ish hp their current V6s are pumping out. My Overland Gladiator has been on the shelf for 8 months now, and 80k other Gladiators and Wranglers with the 6spd gearbox are on recall, with dubious correction dates...because the clutches slip to such excess that flexplate gets hot-short and sprays red-hot metal all over the engine bay, at highway speed.
"Hurrah...we can murder-splode your clutch even moar!!1!"
-Stellantis, probably
xflowgolf (Forum Supporter) said:Pete. (l33t FS) said:In reply to xflowgolf (Forum Supporter) :
Modern technology, William!
For perspective, MBZ has a 2 liter four making 425hp in some applications.
I mean I get that to a point, but we're talking about the HO Hurricane I-6 3.0 making 540hp/521ft.lb. That's out-outputting ze Germans at the pointy end of their 2024 high performance offerings. ...and in a half ton pickup no less.
Is there a higher output 3.0 in stock configuration anywhere?
That is quite a bit less power per cylinder, though.
Even in truck applications, Mercedes derated the engine to 260hp, which would be like a 390hp six cylinder. More, factoring parasitic losses that do not scale with number of cylinders.
rslifkin said:In reply to xflowgolf (Forum Supporter) :
This is coming from the company that was happy to sell 800hp cars with a warranty, so I'm guessing that if anyone has a decent handle on how to make something like this not blow up, they probably do.
Another factor is that I expect BMW cares about how the powerband feels, not adding more power than their desired transmission can handle, etc. In this case, big numbers sell, so make the power and then worry about what to do with it after.
The BMW is engineered to have the throttle bolted down indefinitely. I suspect the Mopar engineers figured that nobody would use full power for more than a couple seconds.
At some point, the more power you make, the less you use it. A 250hp 454 in a one ton is expected to be run at WOT forever, too.
You'll need to log in to post.
