Ritch
April 14th, 2008, 11:12 AM
notice for metric tuners the formula for H0101 should read
H0101= P*D*100000 / ( T*pi)
there should be 5 zeros not 6
Blacky
April 14th, 2008, 01:07 PM
Unless my math has deserted me (and it does sometimes), the constant should be 1,000,000 (6 zeros, i.e. 1 million).
That is because there are 1 million mm in 1 km.
So an example calculation using a tire diameter of 640mm, a diff ratio of 3.42 and a VSS gear with 40 teeth.
H0101 = (40*3.42*1,000,000)/(640*3.141592653)
= 136,800,000/2010.62
= 68,038.7 pulses per km
If I've made a mistake somewhere, can you explain why you think it should be 5 zeros?
The only way I can see it needing to be 100,000 was if you were measuring the tire diameter in cm.
Regards
Paul
Ritch
April 15th, 2008, 05:13 AM
Yep that's what happened I used cm
Sorry for the interruption.
Powered by vBulletin® Version 4.2.5 Copyright © 2024 vBulletin Solutions Inc. All rights reserved.