Flat Plane Crank

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02-03-2019, 01:03 PM

#16

UKKid35

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Quote:

Originally Posted by V2Rocket

the biggest F-V8 is what, 4.5L, with baby 94mm pistons that you just know are micromanaged into minimum weight spec.

TVR's AJP8 is also 4.5L, but has 91mm bore so longer stroke than the Ferrari

As far as I can tell there are no vibration issues

Sure, early versions of the 4.2L variant would regularly snap their cranks, but this was fixed when the journal size was increased from 2.3" to 2.5"

Also, I seriously doubt TVR had any real development budget

Last edited by UKKid35; 02-03-2019 at 01:17 PM. Reason: Photo added

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02-04-2019, 11:07 AM

#17

76FJ55

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Quote:

Originally Posted by 928 GT R

Spot on!

Not sure how many of you have heard one in action, but the Voodoo engine sound is amazing! Flat plane cranks are also part of the reason that Ferraris engine sound is so intoxicating!

Add full throttle to the V12 flat plane configuration and it seems that the sky is tearing open!

No such thing as a flat plane crank in a V12, or at least non I've ever heard of. with a V12 you essentially end up with 2 inline 6s which dictate that you have crank throws at 120 degrees.