Anyone else frustrated with Ford over the next GT500?

Fourcam380

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You have a valid point but GM doesn't need 32 valves and 4 cams when they have head flow that Ford could only dream of.

When talking NA performance, velocity trumps flow, which is what makes four valve heads superior by design. Higher velocity than a 2v into and out of the chamber. There are plenty of 260/190 cfm heads that have spanked 290/210cfm heads.

Referenced Lingenfelter's site for the data, looks like LT1 heads are ~320/200cfm @ .600" max lift on a 4.065" bore. JPCs for stock coyote head flow on 3.63" bore, ~300/200cfm @ .600" and 290/200cfm @ .500". Voodoos are ~320/220cfm stock. Throw either on a 4" bore and peak numbers between Ford and chevy heads would be hard to tell apart.

In either case that's more than enough head to get the job done with much higher velocity than the GM head despite the smaller bore.

Hopefully the rumors are true and there is a 500hp+ NA 6.2L 4V variant of the mid engined Vette.
 

DHG1078

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You have a valid point but GM doesn't need 32 valves and 4 cams when they have head flow that Ford could only dream of.

When talking NA performance, velocity trumps flow, which is what makes four valve heads superior by design. Higher velocity than a 2v into and out of the chamber. There are plenty of 260/190 cfm heads that have spanked 290/210cfm heads.

Referenced Lingenfelter's site for the data, looks like LT1 heads are ~320/200cfm @ .600" max lift on a 4.065" bore. JPCs for stock coyote head flow on 3.63" bore, ~300/200cfm @ .600" and 290/200cfm @ .500". Voodoos are ~320/220cfm stock. Throw either on a 4" bore and peak numbers between Ford and chevy heads would be hard to tell apart.

In either case that's more than enough head to get the job done with much higher velocity than the GM head despite the smaller bore.

Hopefully the rumors are true and there is a 500hp+ NA 6.2L 4V variant of the mid engined Vette.

This. Also, reference the engine masters competition in the 1 year they allowed a mod motor to compete. Mod motors swept the competition in pretty much every aspect.
 

DHG1078

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All manufacturers benchmark a variety of other manufacturer's cars, even if they aren't trying to directly compete with it. They like to see how other designs are done, and how that benefited X, y, or z.
 

tt335ci03cobra

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The gt350r already dances with gt3's and honestly gt3 rs's when properly equipped with a great driver. Take into account a 180tw tire on the r vs an 80 on the rs and its all down to tires and drivers, track type etc.

I want the new gt500 to hunt gt2 rs's. That would be epic. Keep in mind I say want. I don't see it being cost productive to hunt a $280k car very actively with a $75k car but I can want that all day.
 

ON D BIT

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The gt350r already dances with gt3's and honestly gt3 rs's when properly equipped with a great driver. Take into account a 180tw tire on the r vs an 80 on the rs and its all down to tires and drivers, track type etc.

I want the new gt500 to hunt gt2 rs's. That would be epic. Keep in mind I say want. I don't see it being cost productive to hunt a $280k car very actively with a $75k car but I can want that all day.
True though it's 991.1 gt3. The 991.2 gt3 has upped its game considerably...
 

tt335ci03cobra

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The second article is accurate and dated from May, the one from March was retracted... Much like all the bs stories against trump.
 

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