siskue2005 wrote:First off all Bahrain is a medium to high down force track...i think there is no dispute in that...there are more high speed corners here, having 15 KPH more than last year wont allow them to close the gap and having 50KG more with harder tyres and massively low downforce should surely slow them down....buy still they are just 0.8 tenths to last year
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I can dispute it easily with actual figures. Watch.
Bahrain (figures calculated from Nico Rosberg's trap-speed of 328.1km/h during Q3)
Start/finish straight length: 1090m
Turn 12 exit speed onto straight: 169km/h
Frontal area: 1.2m^2, estimate based upon regulations with DRS engaged
Mass: 701kg (691kg + 10kg fuel load)
Power: 730bhp (generous, our own
Blanchimont calculated 708bhp)
Air density: 1.178kg/m^3, calculated from Manama's altitude of 5m, 23C temp, 45% relative humidity
Monaco (figures calculated from Mark Webber's trap-speed of 284.1km/h in 2013)
Start/finish straight length: 669m
Turn 18-19 exit speed onto straight: 108km/h
Frontal area: 1.2m^2, estimate based upon regulations with DRS engaged
Mass: 652kg (642kg + 10kg fuel load)
Power: 730bhp, estimate
Air density: 1.225kg/m^3, calculated from Monte Carlo's altitude of ~1-5m, 19C temp, 45% relative humidity
I can assure you the higher Cd value in Monaco isn't the result of cars towing a parachute; that's downforce.
The weight of a car is irrelevant beyond ~160km/h. From then on, it's all about power and drag, and that's precisely why Bahrain will always flatter low-downforce cars. It's ~3.8km worth of straights packed into a 5.411km circuit for which downforce is largely unnecessary.
I offer my sincerest apologies if these numbers don't say what you want them to say. But, I can't help that.
Here. Try it yourself.