Horsepower calculators help you figure out how much horsepower you get to a certain high-speed figure with your car. However, before we can reach a certain high-speed goal to compute the horsepower, we first look at some of the factors that affect your car or your vehicle's maximum speed.
Generally, the maximum speed is physically equilibrium between the power of all cars. If the total amount of forward moving forces is exactly the same as the total amount of retracting forces, the car can no longer increase its speed and reach the steady state.
Strength: Ability in Horsepower
Resistance: Can Pull Through
Even more demolished:
The factor that affects how much the car forces The underlying products relate to 
- Total amount of raw horsepower to work with
- The ultimate gear unit that combines transmission gear ratio, differential end drive ratio and wheel and tire diameter
- Car Front End (Determining how well the car moves on the front of the air)
- The height of the car or the distance to the ground that determines the parts of the air stream that are divided and forced on the roof line below the car's crack
- The side profile of the car, which determines whether the air will be folded after passing through under and around the car and determining low pressure zone features behind the rear window or the rear bumper of the car. This zone always efficiently "sucks" the car backwards and minimizes it.
- In addition to the aerodynamic resistance factors, there are mechanical resistors that rotate the inside of the engine, the gearbox, the wheel and the tire (especially the four-wheel drive) and so on.
The aerodynamic profile of the car, which is summed up by a number called so-called pull factor, which combines various parameters such as, :
Research has shown that (and some racing classes, such as Formula 1, have pragmatically confirmed this) that around 100 miles per hour after the point that mechanical resistance factors are less important to affect the vehicle's peak speed
At such speeds aerodynamic drag is the primary resistive force in determining the performance of a car, so in sports such as Formula 1 performance, the car has the right aerodynamic setting for the best combination of the highest speeds and for aerodynamic assisted towing (dow n force) high speed cornering course. For comparison, a lower speed compete class, The automatic intersection (which is limited to about 80 km / h in relation to the fastest car in the design of the track) finds that the best performing cars are the best mechanical towing with the right suspension settings and good tire draw) and not a real dynamic effects in aerodynamic design.
To put it this way, by changing the slip coefficient of the car, it may be advantageous to have an expensive process that is decreasing. After the first set of basic modifications have been exhausted, for example …
- Reduction of the displacement of the vehicle to reduce turbulence during the vehicle
- Installation of the aftermarket front bumper with integrated air distributor or extension of the factory bumper by adding the air distribution unit
- Lower profile widths in the car than lower profile segments or rear spoilers with less aggressive angles (better balance between pull and downward force)  Coating of the lower part of the car, so that the lower recessed plate supports the air beneath the vehicle and reduces turbulence. (You will find that Mercedes manufacturers do this on the lowest-grade compact cars to improve high-speed stability and high-mileage.)
- Ready or rear-facing rear bumper with built-in rear diffuser with two airflows from the rear bumper behind and below the car that is compacted and prevents the low pressure zone from behind the bumper causing the vehicle to fall back.
- Breaking the upper part of the car and lowering the height of the roofline relative to the hood and the trunk (think of the roof height between Corvette and the Jeep to better understand why it works)
- Strategically placed hoods and front and rear wings is used in high pressure zones (such as in a bonnet or wheel hubs) to reduce the pressure in these zones and assist in the flow of air on the vehicle
… if the list of modifications is depleted, you will find that the pull factor has actually decreased by 30%. However, the highest speed is as follows:
Power to Overtake Air = fA x Cd x 0.00256 x mph Cubic Width / 375
Note in this equation that the peak velocity is Cd and thus the traction effect is a from a typical 0.45 to a more sporty 0.30 (a 30% drop) results in only 12% increase in its current peak speed (ie 100 to 112mph).
Yes, this is a remarkable gain, but in order to do something that doubles the highest speed you can finally start increasing the overall performance level. This is a recognition that soon became apparent to the Volkswagen designers who worked on the 1100-inch Bugatti Veryron and therefore had enough energy to reach the 400kph peak-speed target.
we know that if a car's performance is limited at its peak speed (where we need more gears for acceleration or where we reach peak speeds at the highest gear much earlier than the red line) then we know that the engine speeds the horsepower (or gears) is a very handy way to raise the maximum speed of the car
In practical terms, even if the pulling factor is unknown in the car in question, how much performance is needed to achieve a certain high speed by comparing the current performance and highest speed at the targeted maximum speed. Here and with the following equation (derived from the above general equation) we get the following:
New horsepower = old horsepower * (new high speed / old high speed) ^ checker
A practical example close to my home 320 horsepower 3000 GT VR4. This twin-turbocharged car is highly aerodynamic and can be reached in stock to reach its highest speed at 160 km / 5 gear at 6000 RPM at 1000 RPM to get started in the gearbox and a fully unused sixth gear.
Since the car's effectiveness is limited (not limited or limited), some of the fans have changed the car and broken the 200-meter barrier.
Application of the formula above:
New horsepower = 320 horsepower * (200mph / 160mph) ^ 3
New horsepower = 625 horsepower
So this means that in order to reach a 3000GT VR4 at 200mph, we know 625 horsepower (assuming we have enough speed and speed to increase wheel rotation speed by 200/160 or 25% while still running the car under redline rpm.)
As a final remark, you may find it crazy to try double the horsepower and get the highest speed that far exceeds the speed limit. In any case, I was on a regular road:  There are platforms such as Chevy Corvette, Mitsubishi 3000GT, Toyota Supra … etc . where doubling or tripling the performance level of iconic sports cars is not only relatively cheap ($ 7,000 for the 3000GT via the Dynamic Racing Diablo Killer update package)
2 – There are also some strict competitive features that allow fans to race their races , tests. These are very addictive and difficult racing classes that attract only the most committed enthusiasts of aerodynamic design, horsepower, towing, gear shifting, stability and longevity from each of their vehicles, and is increasingly a competition culture or an addiction. it is difficult to break.
Source by visit sbobet thailand