Rumours

[AmericanThunder]

I’m reading about the potential return of the legendary 426 Hemi, supposedly in the next refresh of the Challenger platform.
What’s interesting is that this will be an Aluminium block with forged internals and a naturally aspirated horsepower rating in between the Hellcat (707) and the Demon (840), both of which are supercharged.
True? I guess until it’s officially announced who knows? But as a rumour it’s worth sharing, especially as everyone else moves to smaller displacement V6’s with hairdryers or worse electric for there performance offering. Thank goodness that American car manufacturers still have the testes to deliver what’s wanted, even by a shrinking niche market.

 

[Chriswrx123]

Yep ?????? bring it on . Just wot we need

 

[TransAmDan]

Yeah that power should be possible with the advances of engines over the years. Mine may make 540hp as a 383ci so a 426ci certainly has the potential. I do like N/A. Nice lumpy cam which you can't really do on forced induction.
Glad the Americans plan to make what the market needs.

 

[saleen 192]

at a price which most mortals will never be able to afford ?
but as you say would be nice :thumb:

 

[AmericanThunder]

Yeah that power should be possible with the advances of engines over the years. Mine may make 540hp as a 383ci so a 426ci certainly has the potential. I do like N/A. Nice lumpy cam which you can't really do on forced induction.
Glad the Americans plan to make what the market needs.

Unfortunately it’s unlikely a high lift long duration cam shaft will pass emissions. Fairly sure yours wouldn’t?!!
So how they make that sort of power without that old school method is quite impressive.

 

[TransAmDan]

Yeah could be tough if it has to pass emissions too. More cubes needed, 572ci sounds like a good number.

I wonder if they can implement variable valve timing, good on envisions, good on power when required.

 

[AmericanThunder]

at a price which most mortals will never be able to afford ?
but as you say would be nice :thumb:

Lol you should check this: http://www.solent-renegades.co.uk/general-discussion/29904-holy-moly.html#post77550

 

[AmericanThunder]

I wonder if they can implement variable valve timing, good on envisions, good on power when required.

The current 5.7 & 6.4 Hemi’s with auto gearboxes already have cylinder shutdown technology that is controlled by hydraulic valve train so it’s not that big of a step.

 

[TransAmDan]

Lol you should check this: http://www.solent-renegades.co.uk/general-discussion/29904-holy-moly.html#post77550

Exchange rate is looking good to purchase that.

 

[AmericanThunder]

Exchange rate is looking good to purchase that.

Why thank you Dan. Your extravagant gift is unexpected but very welcome. I’ll look forward to receiving it!

 

[renchero]

variable valve timing have been around for years. even some of the rover k series engines had it. once herd of an [experimental] engine in which the camshaft had been replaced with solenoids

 

[TransAmDan]

variable valve timing have been around for years. even some of the rover k series engines had it. once herd of an [experimental] engine in which the camshaft had been replaced with solenoids

That would be the way to do it, less friction. I believe F1 cars used solenoids for valves, it worked for the race, but long term they would fail. That tech will advance if the demand is there.