718 Boxster 13 minute movie

[BIGJake111]

Wow I understand it being 4 cylinder now. That is some tight packaging also not the best looking.

[imon_2nd]

I've read up on the 718 and watched more than a few videos. No doubt, it is seriously quicker than any previous Boxster. I predict there will be a healthy aftermarket for custom exhausts to remedy the lame sound of it.

Too bad Porsche didn't go with a 2 liter, 6-cylinder turbo motor. Sure, it would have cost them a few bucks more due to needing an entirely new design as opposed to just truncating the 911 motor to fit a turbo. But, given the profit margins they've got, why not?

[navair]

Originally Posted by imon_2nd

I've read up on the 718 and watched more than a few videos. No doubt, it is seriously quicker than any previous Boxster. I predict there will be a healthy aftermarket for custom exhausts to remedy the lame sound of it.

Too bad Porsche didn't go with a 2 liter, 6-cylinder turbo motor. Sure, it would have cost them a few bucks more due to needing an entirely new design as opposed to just truncating the 911 motor to fit a turbo. But, given the profit margins they've got, why not?

Aftermarket exhaust won't add 2 cylinders or change the firing order. Think of an unmuffled 1970's Baja bug, yikes.

And to think they could have designed it with a 270 degree crank, then it would sound amazing! Just like a late model Yamaha R1 or Honda VFR V4...like this:

https://youtu.be/EkiZqwLx6iI

[imon_2nd]

Hello, Navair. (Navy flyer?)

That little 4-cyl in the YouTube video still sounds wrong to me.

There are exhaust design tricks that can help a 4-banger. Two into one back into two is a method (Dunstall) that sounded great on the Norton 750 back in the old days. Unequal header lengths can do neat things to sound as well. But, as you said, four is not six no matter what.

Cheers,

Dave

[navair]

Originally Posted by imon_2nd

Hello, Navair. (Navy flyer?)

That little 4-cyl in the YouTube video still sounds wrong to me.

There are exhaust design tricks that can help a 4-banger. Two into one back into two is a method (Dunstall) that sounded great on the Norton 750 back in the old days. Unequal header lengths can do neat things to sound as well. But, as you said, four is not six no matter what.

Cheers,

Dave

Aero engineer, Fleet support for the Navy.
I remember those pipes, the odd looking 'tee' 2-1-2, right? I had an 850 back in the Cretaceous period...
Roger

[Finnegan]

The tuners will be able to go absolutely crazy with this engine though.

[imon_2nd]

Originally Posted by Finnegan

The tuners will be able to go absolutely crazy with this engine though.

Well, sure, like they do with WRX motors. Jack the manifold pressure up to 24 psi. If the Ford Focus RS can do it, why not? Of course, Ford beefed up the internals of the motor a lot.

Another thing, the mid-engine layout of the Box makes heat dissipation a really big issue. Turning up the wick on the turbo to yield 500 HP will require a boatload of cooling. Will be interesting to see the solutions.

[ekam]

Originally Posted by Finnegan

The tuners will be able to go absolutely crazy with this engine though.

Not really, because everything is so tight in there there is very little room to play...