why no variable valve technology?

[Lycoming]

Because:

1. Bernie does what he wants.

2. You could argue that the v6 turbo formula is more "road relevant" and more "environmentally friendly", which is probably beneficial for their image. And it's all just a marketing excercise anyways, so that's what really matters.

[Jersey Tom]

On top of that, shaking up rules every few years is good for the sport. Jumbles up the running order. Be it engine, aero, chassis.. same end result.

But a boosted UHP engine and super strung out naturally aspirated UHP engine... I don't think either are particularly road relevant. How many consumer cars (petrol driven) even use turbos? I'd guess more are NA than turbo or supercharged.

Earlier comment on running pump gas, I don't see what advantage that is.. other than having to redesign or retune engine components and lose power.

[Holm86]

On top of that, shaking up rules every few years is good for the sport. Jumbles up the running order. Be it engine, aero, chassis.. same end result.

But a boosted UHP engine and super strung out naturally aspirated UHP engine... I don't think either are particularly road relevant. How many consumer cars (petrol driven) even use turbos? I'd guess more are NA than turbo or supercharged.

Earlier comment on running pump gas, I don't see what advantage that is.. other than having to redesign or retune engine components and lose power.

Almost every new car on the market today gets downsized turbo engines with direct injection. At least in europe.

[Jersey Tom]

On top of that, shaking up rules every few years is good for the sport. Jumbles up the running order. Be it engine, aero, chassis.. same end result.

But a boosted UHP engine and super strung out naturally aspirated UHP engine... I don't think either are particularly road relevant. How many consumer cars (petrol driven) even use turbos? I'd guess more are NA than turbo or supercharged.

Earlier comment on running pump gas, I don't see what advantage that is.. other than having to redesign or retune engine components and lose power.

Almost every new car on the market today gets downsized turbo engines with direct injection. At least in europe.

Certainly not the case in the States.

Either way, I don't see how making race engines makes for better car engines. Just like making race tires doesn't make for better car tires. Etc.