ArizonaGT said:
I first saw it in Road & Track.
The 5.0 is most definitely staying around for the GT. But the rumors of fancy shiznit are for the GT350 which, like the GT500, could potentially have a completely different motor.
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I first saw it in Road & Track.
The 5.0 is most definitely staying around for the GT. But the rumors of fancy shiznit are for the GT350 which, like the GT500, could potentially have a completely different motor.
Still not buying it; even with the S197 the 5.8 and 5.0 DOHC barely fit between the strut towers. Now talk about laying those banks horizontally-opposed, in a smaller engine bay? I don't think that's happening.
Raymax said:
Whoops yeah looks like I misunderstood all that
I had no idea what you guys were talking about...then I found this.
http://www.projectm71.com/Cross_FlatPlane.htm
still a bit confused, but if it's in race engines, then I want it ;-)
http://www.projectm71.com/Cross_FlatPlane.htm
still a bit confused, but if it's in race engines, then I want it ;-)
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Zquez said:
I expect it may be some form of 5.0 twin turbo. They have been working on turbo versions for a while now.
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Yes it would. McLaren uses that configuration.Raymax said:
And after looking at photos of their engine it looks a lot like ours. 
Flat Plane Crank.
Block would still be a conventional V8 block.
It's the firing order that different.
Look at the outboard and inboard banks and then the two inner banks
A flat plane V8 is very much like two inline-4 engines mated together in a V configuration. So end-to-end balance is inherent, as the first and last piston of a bank is always exactly in the same position, as are the center two pistons on each bank.
Now, the exhaust note of an engine is related to the manifold design, which is related to the firing order, which is related to the cylinder layout and crankshaft design - therefore the sound of flat-plane V8 is usually somewhat like a pair of four-pot engines screaming simultaneously, unlike the rumble of cross-plane V8s. There have been comments like "It doesn't sound like a V8" aimed at the V8 Esprit... but this should really be "It sounds like a Racing V8!" for the reasons explained here.
While it may be true that flatplane V8s are less refined than crossplane (The flat-plane crank pins produce vibrations, being 180° opposed and thus lacking rotational balance, unless balance shafts are used - which is actually rare), refinement is not a priority for sports/race cars: light weight pistons and conrods and a short stroke "over square" configuration greatly reduce this "second-order vibration". More importantly, as a flatplane crankshaft does not require counterweights, it has less mass and a lower moment of inertia, providing higher rpm and more rapid acceleration.
Engines that use this arrangement include; Cosworth DFV, Coventry Climax, Ferrari F40, TVR Cerbera AJP V8, the Lotus type 918 V8.............race car stuff
Flat crank above / cross crank below (traditional American V8)
Block would still be a conventional V8 block.
It's the firing order that different.
Look at the outboard and inboard banks and then the two inner banks
A flat plane V8 is very much like two inline-4 engines mated together in a V configuration. So end-to-end balance is inherent, as the first and last piston of a bank is always exactly in the same position, as are the center two pistons on each bank.
Now, the exhaust note of an engine is related to the manifold design, which is related to the firing order, which is related to the cylinder layout and crankshaft design - therefore the sound of flat-plane V8 is usually somewhat like a pair of four-pot engines screaming simultaneously, unlike the rumble of cross-plane V8s. There have been comments like "It doesn't sound like a V8" aimed at the V8 Esprit... but this should really be "It sounds like a Racing V8!" for the reasons explained here.
While it may be true that flatplane V8s are less refined than crossplane (The flat-plane crank pins produce vibrations, being 180° opposed and thus lacking rotational balance, unless balance shafts are used - which is actually rare), refinement is not a priority for sports/race cars: light weight pistons and conrods and a short stroke "over square" configuration greatly reduce this "second-order vibration". More importantly, as a flatplane crankshaft does not require counterweights, it has less mass and a lower moment of inertia, providing higher rpm and more rapid acceleration.
Engines that use this arrangement include; Cosworth DFV, Coventry Climax, Ferrari F40, TVR Cerbera AJP V8, the Lotus type 918 V8.............race car stuff
Flat crank above / cross crank below (traditional American V8)
NeuRon
2012 500A #1626
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TT V8 would be cool, but living in a hot environment has me more interested in the speculated 500HP N/A GT350. Probably too expensive for me anyway. :
NFSBOSS said:Yes it would. McLaren uses that configuration.
http://images.thetruthaboutcars.com/2010/03/mcengine4.jpg[/ig]
[img width=900 height=818]http://www.cartype.com/pics/7627/full/mclaren_mp4-12c_eng_11.jpg[/ig]
[/quote]
Sssssh, don't tell [b]them[/b] that! :)
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Raymax said:
They have a Turbo version of the Cobra Jet that makes some big HP numbers. I expect we may see some version of a turbo.
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