Things to Consider Before Top Speed Racing at Bonneville
Top speed hustling is particularly similar to racing, yet just on a long track. In racing, it is capacity to weight proportion which commonly decides your exhibition. In any case, when the track is long, and your vehicle invests considerably more energy at rapid, it is capacity to drag proportion which is increasingly significant. By drag, I mean fundamentally streamlined drag or wind opposition. Notwithstanding streamlined drag, there is moving obstruction from tires, driveline misfortunes, yet the higher the speed, the bigger the streamlined part of generally speaking drag.
To improve the ability to drag proportion, you need to build the power and decrease the drag, which bodes well. To speed up, you need more force and you need to make the vehicle progressively streamlined. In any case, what you can be sure of is, that to go twice as quick, you need eight (8) times the force. On the off chance that your 200 HP vehicle can top out at 120 MPH, you would require 1600 HP to top out at 240 MPH. (You would likewise require some great tires to hold together, and great air downforce to remain out and about).
Most all racers have some thought on the best way to improve the motor’s capacity. Motor force can be reasonably dependably reproduced with a motor reproduction PC program, and these would all be able to be tried on a motor dynamometer.
The greatest supporters of streamlined drag are the vehicle’s frontal region (outline of vehicle when seen from the front) and it’s drag coefficient (a rating of how effectively the vehicle cuts through the air for it’s frontal region). Drag coefficients differ from a high estimation of around .8 for an upstanding rider on a vintage cruiser, to .6 for a more established pickup truck, to .4 for a cutting edge streamlined car, to .35 for an advanced games vehicle, to a staggeringly low .15 of “pencil formed” land speed record vehicles like the Blue Flame.
To streamline the optimal design of your specific vehicle, you should peruse all that you can get your hands on. The essential shape has a huge impact, however unobtrusive things like windshield moldings, vehicle rake (bringing down the front end), underbody bulges all signify gigantic upgrades. Regularly you simply cause these mods you to have found out about and trust in the best, since it is exceptionally hard to gauge if your streamlined mods have made any truly improvement.
The most ideal approach to really gauge the impact of streamlined mods is to lease an air stream, at around $50,000 every day. For all of us, we can preform coastdown tests. This is the place you get your vehicle up to a top speed, toss it in nonpartisan and let it coast to a lower speed. For this to be exact, you should utilize a similar stretch of extremely level street, and do the test in the two bearings to limit the impacts of wind and slight level of the street. In the event that the coastdown times, from express 100 to 60 MPH has expanded 3%, it implies you have made a 3% improvement (decrease) in drag coefficient.
The most ideal approach to do coastdown tests it to do a few and normal the outcomes. It is likewise best to utilize some kind of information lumberjack so you get loads of precise information and the driver can focus on driving. From doing coastdown tests myself, I can say this requires bunches of tests and persistence to get great outcomes. Additionally, the higher the speed (not on open streets), the better the outcomes. There is likewise programming which can isolate the amount of the coastdown drag is from the tire moving opposition and what amount is from streamlined impacts, and concoct genuine numbers, similar to your drag coefficient is .322.