Reminder that a turbo pinto engine ran circles around V8s and didnt anything fancy like VVT or DOHC...

I forgot about the abomination that is V6 crankshafts before making that post.
Inline 6 is so perfect other than being so damn long

Yes, i know. But i dont want to go with the train of thought of "if its not done before its because it didn't work".

I want to know specifically why and how it did not work. Engines follow basic physics principles. There's a why to everyhing and a "how to improve" too with it.

Why don't manufacturers use shaft driven OHC. How much money can that really cost over chain or belt drive when compared to the cost of the entire engine/vehicle. Seems silly to compromise such an important part risking destruction of the engine just to save a tiny bit of weight or money

i dont think axle shaft driven OHC is gonna be more reliable.

i bet it's 50/50, trunk is full of batteries too
5000lbs of perfect weight distribution

Is that a tripple overhead camshaft?

fuckin right!

1. A hemi with a flatend combustion chamber would have significantly less valve area than a pentroof
2. A pentroof head can have a smaller combustion chamber than a hemi without compromising the valve and piston design, wich allows for higher compression ratios and therefore higher thermal efficiency
3. A DOHC head has way less recipocating mass on the valvetrain than a hemi, wich allows it to rev higher with weaker springs

Pic related is how a piston for a roughly 10:1 compression ratio hemi engine looks like, it definitly compromises the combustion due to its increased surface area compared to a DOHC engine, that can still run flat pistons at the same compression ratio.

Is that a VR-6?

I know that. But the issue always remains as the pocket heat zones, the entire point of a hemi being that you eliminate them.

Isn't there a way to modify a pentroof in such way that you can reduce them? taking a theoretical piston head for example?