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2020+ Shelby GT500 Mustang
Those interested in the new GT500,....
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<blockquote data-quote="Fourcam380" data-source="post: 15567446" data-attributes="member: 185249"><p>Thanks for posting.</p><p></p><p>Granted it's been a minute but IIRC the Boss series of engines could be taken out past 7.5L which is great. Downside is they were iron block, PFI and the heads looked like giant PI 2Vs from a 4.6L--not great for performance.</p><p></p><p>Other than a few concept powerplants, IIRC the 6.8L V10 never got 4v heads, just the same 3V heads used on the 4.6/5.4L which were inherently inefficient due to the poor port angles due to packaging constraints in varying models. Add to it the small 3.54" bore and giant 4.165" stroke, meaning tiny valves for a relatively large motor which hurts N/A applications especially badly. No DOD, and rudimentary VCT also didn't help fuel economy, a low static C/R added to the inefficiency, and again from what I remember the intake manifolds sucked on these things as well.</p><p></p><p>Honestly based on the above you'd be hard pressed not to bring to life an engine more than 10 years after the release of the 3v 6.8L V10 that wasn't more efficient, powerful, etc without trying.</p><p></p><p>All that taken into account, other than having to shoehorn this engine in a Mustang (and throwing off the weight balance to a huge degree by doing so) it's not going to hit 700HP N/A production wise even with 4v heads and all the latest N/A trickery without FI. Since FI can be applied to existing 5.0-5.2L designs to meet HP/TQ goals as well as emissions and meet fuel economy wants, it just makes significantly more sense.</p><p></p><p>Allow me to wrap by saying I would love a N/A 7.0L anything in a new Stang or SE variant. Historically, as everyone here knows we blue bleeders have always been down in the CID department to the bowtie guys, I still can't believe they put a V6 in the Ford GT...</p><p></p><p>I guess the good news, which you hinted at, is that the Zora Vette is supposed to have a DOHC 6.2L with and without FI in case Ford doesn't pull through which I'm obviously hoping isn't the case. Light + Aerodynamic + 10A + 6.2L 4V = something that can run with the Euro guys up top. Yes please.</p></blockquote><p></p>
[QUOTE="Fourcam380, post: 15567446, member: 185249"] Thanks for posting. Granted it's been a minute but IIRC the Boss series of engines could be taken out past 7.5L which is great. Downside is they were iron block, PFI and the heads looked like giant PI 2Vs from a 4.6L--not great for performance. Other than a few concept powerplants, IIRC the 6.8L V10 never got 4v heads, just the same 3V heads used on the 4.6/5.4L which were inherently inefficient due to the poor port angles due to packaging constraints in varying models. Add to it the small 3.54" bore and giant 4.165" stroke, meaning tiny valves for a relatively large motor which hurts N/A applications especially badly. No DOD, and rudimentary VCT also didn't help fuel economy, a low static C/R added to the inefficiency, and again from what I remember the intake manifolds sucked on these things as well. Honestly based on the above you'd be hard pressed not to bring to life an engine more than 10 years after the release of the 3v 6.8L V10 that wasn't more efficient, powerful, etc without trying. All that taken into account, other than having to shoehorn this engine in a Mustang (and throwing off the weight balance to a huge degree by doing so) it's not going to hit 700HP N/A production wise even with 4v heads and all the latest N/A trickery without FI. Since FI can be applied to existing 5.0-5.2L designs to meet HP/TQ goals as well as emissions and meet fuel economy wants, it just makes significantly more sense. Allow me to wrap by saying I would love a N/A 7.0L anything in a new Stang or SE variant. Historically, as everyone here knows we blue bleeders have always been down in the CID department to the bowtie guys, I still can't believe they put a V6 in the Ford GT... I guess the good news, which you hinted at, is that the Zora Vette is supposed to have a DOHC 6.2L with and without FI in case Ford doesn't pull through which I'm obviously hoping isn't the case. Light + Aerodynamic + 10A + 6.2L 4V = something that can run with the Euro guys up top. Yes please. [/QUOTE]
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