Enzo309
(Banned)
- 484
Calculator site is : http://www.letstorquebhp.com/calculator.asp
The fastest road car ive ever driven is the Bugatti Veyron which has a power to weight ratio of 530 horsepower per ton but the power to weight ratio of this is 1730 hp per ton , that is a huge difference. But its not just the numbers its the aerodynamics too!
the 1730 hp per ton is the (formula GT)
although around the track specifically around Suzuka Circuit the Ferrari F10 which has a power to weight ratio of 1200 hp per ton is more than 6 seconds quicker than the Formula Gran Turismo due to its engineering and aerodynamic development Well seeing Ferrari in Formula 1 spending 500 million pounds per year on the aerodynamics development alone per year the results are very predictable.
sample :
Stock Ferrari Enzo
Power at Flywheel (BHP) : 650 bhp
Weight without Driver (KG) : 1250 kg
Drive Type : Rear wheel drive
Equal to a power to weight ratio of 530 horsepower per ton
Explanation of Calculations :
1) The Formulas used and statistics shown on letstorquebhp.com theory performance web site and calculator, predict 0-60mph, 0-100mph and ¼ mile times (with the ¼ mile terminal speed) for road legal cars on road legal tyres. To check the accuracy of these figures we recommend you compare them to real life road test figures that you may have come across in magazines and sites.
2) It also calculates a separate Drag ¼ mile (with terminal speed and not in relation to the road figures shown) to show the slightly quicker time on a well gripped Drag Strip approved surface. This figure should be compared with real drag strip times achieved at official events (and not the road figure mentioned earlier). They do not allow for none road-legal drag slicks (which can be up to a second quicker on the 1/4mile if not more depending on the drive type).
3) The formula’s only use three items of easy obtainable data to produce the figures, these are Flywheel Power (BHP), Kerb Weight (KG) and Drive type (4WD, FWD or RWD). Formulas do not take into consideration other factors that could also affect real life figures, e.g. torque, gear ratios, aerodynamics, air density, temperature etc, these are not easy obtainable.
4) The 0-60 (and 0-100) quote takes into consideration an average amount of manual gear changes. In real life times can vary if an extra gear change is required before reaching the quoted speed.
5) A “through” 60-100 time is also quoted by subtracting the 0-60 from the 0-100 figure. The real time to cover this segment may well be quicker (due to correct gearing) but the “through” figure shows the time elapsed between 60-100 while covering the 0-100. It gives an indication of a car’s comparison performance once moving, and does not confuse the figures with a different amount of gear changes between cars.
6) Average aerodynamics are used and therefore terminal speed and 0-100 can be slightly out; terminals are based on Power and ¼ mile times.
7) Traction difficulties are taking into consideration for each drive type formula, e.g. 4wd can launch very quickly showing an improved 0-60 (and ¼ mile) compared to Fwd which can suffer from reduced traction off the line.
8) The 4WD formula has now been adjusted (times increased) to allow for heavier cars (e.g. over 1500kg) when launching.
9) Formula’s have been setup to allow for the real possible traction limits of proven cars, e.g. quickest times possible (for the very highest possible power) for 0-60 are set at 2.5secs for 4WD, 2.7secs for RWD, and 4.0secs for FWD, although careful drag suspension setup and legal drag tyre/wheel choice may well be very important to get anywhere near these times.
10) Road/tarmac ¼ mile terminal speed is connected with the quoted 0-100, i.e. if the terminal speed is exactly 100mph then both times should be the same.
11) The calculator has been set with maximum and minimum parameters to stop users entering unrealistic data for the drive type used, to avoid bikes, and none performance vehicles:
4 Wheel Drive (4WD)
Minbhp - 70bhp, Maxbhp - 1500bhp
Minkg - 700kg, Maxkg - 3000kg
Minbhp/ton - 95bhpton, Maxbhp/ton - 1000bhp/ton
Rear Wheel Drive (RWD)
Minbhp - 70bhp, Maxbhp - 1500bhp
Minkg - 350kg, Maxkg - 3000kg
Minbhp/ton - 95bhp/ton, Maxbhp/ton - 1300bhp/ton
Front Wheel Drive (FWD)
Minbhp - 70bhp, Maxbhp - 700bhp
Minkg - 600kg, Maxkg - 2000kg
Minbhp/ton - 95bhp/ton, Maxbhp/ton - 700bhp/ton
12) All formulas were designed with trial and error using research from proven road tests in magazines, this covered various different levels of cars that were used as a basis for setting the formulas, for example, figures from Hot Hatches like the Clio 172, to Supercars like the McLaren F1 were used as a guide. Also results from official modified car events were used as a guide when allowing for very high BHP per ton.
13) We suggest if you're asking us to predict the time of an extreme highly modified vehicle that has a full dog box then, as a rough guesstimate, please minus a few tenths from the drag 1/4 mile that we calculate, e.g. if the vehicle has 800bhp then minus 0.8 seconds from the drag 1/4 mile, if it has 600bhp then minus 0.6 seconds and so on. A full dog box can make a noticeable difference above 60mph, so we hope to have this option supplied with the calculator soon.
The fastest road car ive ever driven is the Bugatti Veyron which has a power to weight ratio of 530 horsepower per ton but the power to weight ratio of this is 1730 hp per ton , that is a huge difference. But its not just the numbers its the aerodynamics too!
the 1730 hp per ton is the (formula GT)
although around the track specifically around Suzuka Circuit the Ferrari F10 which has a power to weight ratio of 1200 hp per ton is more than 6 seconds quicker than the Formula Gran Turismo due to its engineering and aerodynamic development
Well seeing Ferrari in Formula 1 spending 500 million pounds per year on the aerodynamics development alone per year the results are very predictable.sample :
Stock Ferrari Enzo
Power at Flywheel (BHP) : 650 bhp
Weight without Driver (KG) : 1250 kg
Drive Type : Rear wheel drive
Equal to a power to weight ratio of 530 horsepower per ton
Explanation of Calculations :
1) The Formulas used and statistics shown on letstorquebhp.com theory performance web site and calculator, predict 0-60mph, 0-100mph and ¼ mile times (with the ¼ mile terminal speed) for road legal cars on road legal tyres. To check the accuracy of these figures we recommend you compare them to real life road test figures that you may have come across in magazines and sites.
2) It also calculates a separate Drag ¼ mile (with terminal speed and not in relation to the road figures shown) to show the slightly quicker time on a well gripped Drag Strip approved surface. This figure should be compared with real drag strip times achieved at official events (and not the road figure mentioned earlier). They do not allow for none road-legal drag slicks (which can be up to a second quicker on the 1/4mile if not more depending on the drive type).
3) The formula’s only use three items of easy obtainable data to produce the figures, these are Flywheel Power (BHP), Kerb Weight (KG) and Drive type (4WD, FWD or RWD). Formulas do not take into consideration other factors that could also affect real life figures, e.g. torque, gear ratios, aerodynamics, air density, temperature etc, these are not easy obtainable.
4) The 0-60 (and 0-100) quote takes into consideration an average amount of manual gear changes. In real life times can vary if an extra gear change is required before reaching the quoted speed.
5) A “through” 60-100 time is also quoted by subtracting the 0-60 from the 0-100 figure. The real time to cover this segment may well be quicker (due to correct gearing) but the “through” figure shows the time elapsed between 60-100 while covering the 0-100. It gives an indication of a car’s comparison performance once moving, and does not confuse the figures with a different amount of gear changes between cars.
6) Average aerodynamics are used and therefore terminal speed and 0-100 can be slightly out; terminals are based on Power and ¼ mile times.
7) Traction difficulties are taking into consideration for each drive type formula, e.g. 4wd can launch very quickly showing an improved 0-60 (and ¼ mile) compared to Fwd which can suffer from reduced traction off the line.
8) The 4WD formula has now been adjusted (times increased) to allow for heavier cars (e.g. over 1500kg) when launching.
9) Formula’s have been setup to allow for the real possible traction limits of proven cars, e.g. quickest times possible (for the very highest possible power) for 0-60 are set at 2.5secs for 4WD, 2.7secs for RWD, and 4.0secs for FWD, although careful drag suspension setup and legal drag tyre/wheel choice may well be very important to get anywhere near these times.
10) Road/tarmac ¼ mile terminal speed is connected with the quoted 0-100, i.e. if the terminal speed is exactly 100mph then both times should be the same.
11) The calculator has been set with maximum and minimum parameters to stop users entering unrealistic data for the drive type used, to avoid bikes, and none performance vehicles:
4 Wheel Drive (4WD)
Minbhp - 70bhp, Maxbhp - 1500bhp
Minkg - 700kg, Maxkg - 3000kg
Minbhp/ton - 95bhpton, Maxbhp/ton - 1000bhp/ton
Rear Wheel Drive (RWD)
Minbhp - 70bhp, Maxbhp - 1500bhp
Minkg - 350kg, Maxkg - 3000kg
Minbhp/ton - 95bhp/ton, Maxbhp/ton - 1300bhp/ton
Front Wheel Drive (FWD)
Minbhp - 70bhp, Maxbhp - 700bhp
Minkg - 600kg, Maxkg - 2000kg
Minbhp/ton - 95bhp/ton, Maxbhp/ton - 700bhp/ton
12) All formulas were designed with trial and error using research from proven road tests in magazines, this covered various different levels of cars that were used as a basis for setting the formulas, for example, figures from Hot Hatches like the Clio 172, to Supercars like the McLaren F1 were used as a guide. Also results from official modified car events were used as a guide when allowing for very high BHP per ton.
13) We suggest if you're asking us to predict the time of an extreme highly modified vehicle that has a full dog box then, as a rough guesstimate, please minus a few tenths from the drag 1/4 mile that we calculate, e.g. if the vehicle has 800bhp then minus 0.8 seconds from the drag 1/4 mile, if it has 600bhp then minus 0.6 seconds and so on. A full dog box can make a noticeable difference above 60mph, so we hope to have this option supplied with the calculator soon.
Last edited:
