Hemi to be replaced by inline six?
This was announced a while back, but Stellantis has finally released details on the new twin-turbo 3.0 liter inline six that might replace the Hemi in the Ram 1500 and other Stellantis vehicles. Prett...
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First question I have for OP; The article suggest plans to build new design in 1 plant instead of hemi. Is that the only place hemi is built? I can't see where the idea is replace for end user.
Sorry, but the most Cats used OTR where I6. Most Cat V8s where used in light duty or short haul. The bigger V8s where too heavy for most buyers.
Back in early '70s I leased on to a company that half the company trucks where inline 6I71 2-stroke. The others, 6V71. The worst of the I6s could out pull the best of V6s. Most of the owner operators had 8V71s Some of them could be passed by the best of the I6.
Me Again wrote:FishOnOne wrote:theoldwizard1 wrote:BenK wrote:
In-line is smoother and of higher torque, generally speaking, than V's
I6 will always have more low end torque.
Why?
Longer stroke in most cases. Or under square. V engines tend to be square or over square.
Under square = bore less than stroke
Square = Bore and stroke the same
Over square = bore more than stroke
Short stroke engines make RPM's and HP
Long stroke engines make torque.
That is why OTR trucks are mostly I-6, and Cat and other V-8s have gone by by!
Sorry, but the most Cats used OTR where I6. Most Cat V8s where used in light duty or short haul. The bigger V8s where too heavy for most buyers.
valhalla360 wrote:theoldwizard1 wrote:BenK wrote:
In-line is smoother and of higher torque, generally speaking, than V's
I6 will always have more low end torque.
Only if "all else is equal"...which of course, it never is.
Back in early '70s I leased on to a company that half the company trucks where inline 6I71 2-stroke. The others, 6V71. The worst of the I6s could out pull the best of V6s. Most of the owner operators had 8V71s Some of them could be passed by the best of the I6.
