Will the Valkyre AMR Pro beat 6:11.13
03-18-2018, 09:43 AM
#16
03-18-2018, 01:36 PM
#17
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AMG told me when I was wrangling for a Project One that their entire goal was to break that record. Not to dishonor him but to dethrone Porsche.
03-18-2018, 06:44 PM
#18
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I don't know why, but I just don't have much interest in the 'track only' versions of any of these hypercars, even thought they are technically more interesting. Love the FXXK, P1 GTR, Vulcan, etc... But just about everyone, owners & enthusiasts alike, end up wanting to see them as 'road legal' cars, or to be able to drive them on the road with no modifications, i.e., factory stock.
Love that MB has made the commitment that all 275 examples of the Project One will be road cars. I hope the Valkyre road car is nearly identical to the AMR Pro with the exception of the front splitter...and I hope it is the road version of the Valkyre can also beat the 6:11.13 time - on the stickiest road legal tires.
Pete, always love to read your technical knowledge on engines. What is your take on the supposed 6.5L NA V12 in both versions of this car that is touted as having a redline of over 10,000rpm?
Love that MB has made the commitment that all 275 examples of the Project One will be road cars. I hope the Valkyre road car is nearly identical to the AMR Pro with the exception of the front splitter...and I hope it is the road version of the Valkyre can also beat the 6:11.13 time - on the stickiest road legal tires.
Pete, always love to read your technical knowledge on engines. What is your take on the supposed 6.5L NA V12 in both versions of this car that is touted as having a redline of over 10,000rpm?
03-18-2018, 08:13 PM
#19
I don't know why, but I just don't have much interest in the 'track only' versions of any of these hypercars, even thought they are technically more interesting. Love the FXXK, P1 GTR, Vulcan, etc... But just about everyone, owners & enthusiasts alike, end up wanting to see them as 'road legal' cars, or to be able to drive them on the road with no modifications, i.e., factory stock.
Love that MB has made the commitment that all 275 examples of the Project One will be road cars. I hope the Valkyre road car is nearly identical to the AMR Pro with the exception of the front splitter...and I hope it is the road version of the Valkyre can also beat the 6:11.13 time - on the stickiest road legal tires.
Pete, always love to read your technical knowledge on engines. What is your take on the supposed 6.5L NA V12 in both versions of this car that is touted as having a redline of over 10,000rpm?
Love that MB has made the commitment that all 275 examples of the Project One will be road cars. I hope the Valkyre road car is nearly identical to the AMR Pro with the exception of the front splitter...and I hope it is the road version of the Valkyre can also beat the 6:11.13 time - on the stickiest road legal tires.
Pete, always love to read your technical knowledge on engines. What is your take on the supposed 6.5L NA V12 in both versions of this car that is touted as having a redline of over 10,000rpm?
03-18-2018, 10:05 PM
#20
Backing out from 6.5 liters and a reported 1130 hp I get a highly over-square cylinder along the lines of 102 mm bore and 66 mm stroke (for 6.50 L). The short stroke allows for an 11,000-11,300 rpm redline while keeping piston speed reasonable. Peak torque will be roughly 600 lbs/ft, peak power of 1130 hp coming at 11,000 RPM or just slightly before. It will be a physically large engine, roughly 8 cm longer than the McLaren F1's 6.0L V12 due to its roughly 16 mm larger diameter pistons. The top end will be the biggest technical challenge, with either finger follower cam rockers like the GT3 or perhaps pneumatic valves a possibility. Compactness and light weight will come from a very thin walled engine block, either a very advanced casting or possibly machined from billet; expect the engine itself to weigh in the range of 450 lbs with exhaust.
That's what my crystal ball says, let's see how close I get.
03-18-2018, 10:42 PM
#21
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03-19-2018, 12:03 AM
#22
03-19-2018, 12:17 PM
#24
Good call. The wiki article reads like 1130 are from the ICE alone. As that peak output number comes down the rpm at which peak power is made can be reduced and in theory peak rpm can also come down. ~1000 hp from the ICE would be much more comfortable and mean power could come well before an 11k rpm redline rather than at it.
I just read that Cosworth is loosely basing the engine on their 2010 2.4l F1 V8, might make pneumatic valve springs more likely? That engine had an 98mm bore, but I still feel 100-102 is more likely for the Valkyrie. Not less than 98 certainly...
https://www.f1technical.net/features/18858
I just read that Cosworth is loosely basing the engine on their 2010 2.4l F1 V8, might make pneumatic valve springs more likely? That engine had an 98mm bore, but I still feel 100-102 is more likely for the Valkyrie. Not less than 98 certainly...
https://www.f1technical.net/features/18858
