Home April Featured Items Clearance Items Free Shipping Offers New Products Technical Info View Catalog Request Printed Catalog Testimonials Map Hours Contact Us About Us Checkout

Your IN STOCK source for quality racing supplies!

Follow us on facebook

Race Tech: Calculate your Kart's Top Speed

It's easy to calculate your top speed and you don't need the latest data acquisition system to do it! All you need are 5 numbers and a calculator or spreadsheet. Here are the 5 numbers that you'll need:

  • C: The circumference of your right rear tire. We suggest the right rear because the result will be quite accurate even if you're running tire stagger on an oval track kart. You can use our E-Z Read Tire Stagger Tape or any other accurate, flexible flat tape measure to determine the tire circumference. We'll use 35 inches in our example.
  • T1: The number of teeth on the driver sprocket. Let's assume 15 teeth for our example.
  • T2: The number of teeth on the axle sprocket. Let's use 75 teeth for our example.
  • RPM: The maximum engine RPM seen during the lap. We'll use 12,500 RPM.
  • 1056: A conversion factor to convert Inches per Minute to Miles per Hour. If you're curious, this number results from dividing the number of inches in a mile (63360) by the number of minutes in an hour.

Here's the simple formula: Top Speed = (C x T1 x RPM) / (T2 x 1056)

Here's our example: Top Speed = (35 x 15 x 12500) / (75 x 1056) = 82.86 MPH

Here's how you would enter the formula in an Excel spreadsheet: =(35*15*12500)/(75*1056)

Here's how you would enter the formula on a standard handheld calculator: 35 'x' 15 'x' 12500 '/' 75 '/' 1056 '=' (replace '/' with your calculator's 'divide' button)

That's all there is to it!
 

Related Charts and Information:

Home April Featured Items Clearance Items Free Shipping Offers New Products Technical Info View Catalog Request Printed Catalog Testimonials Map Hours Contact Us About Us Links Policy Help Checkout

 
Follow us on facebook
 
Pegasus Auto Racing Supplies, Inc.

2475 S 179th St
New Berlin WI 53146 USA

Order Toll Free: 1-800-688-6946 (US & Canada)
Local/International Order Line: 262-317-1234

Technical Questions: 262-317-1200

Fax Line: 262-317-1201

Email - General Questions: CustSvc@PegasusAutoRacing.com
Email - Technical Product Questions: Tech@PegasusAutoRacing.com

Privacy Policy
© 2004 - 2014 Pegasus Auto Racing Supplies, Inc. - All rights reserved