ZR-1 Net Registry Forums - View Single Post - Engine Output comparisons(splinter thread)

jss06c6 · 02-19-2018

What we learned with Chassis Dynos is how critical the drum diameter and configuration is. High HP/TQ builds cause the tire to "Climb" up on the front roller in a typical two roller setup. This causes tire slip since you are trying to rotate a small diameter drum at high RPM. Same logic as 10 speed bicycle! At 10th gear on a bicycle, you're exerting the force across a short moment arm. With small diameter dual drum dyno's as you pour more HP to it, the tire looses traction and slips. You need 24" or larger drums to work with combinations putting down anything over about 1,100 hp..

Sent from my XT1585 using ZR-1 Net Registry mobile app

02-19-2018	#10
jss06c6 Join Date: Aug 2015 Location: Magnolia, Texas Posts: 884	Re: Engine Output comparisons(splinter thread) What we learned with Chassis Dynos is how critical the drum diameter and configuration is. High HP/TQ builds cause the tire to "Climb" up on the front roller in a typical two roller setup. This causes tire slip since you are trying to rotate a small diameter drum at high RPM. Same logic as 10 speed bicycle! At 10th gear on a bicycle, you're exerting the force across a short moment arm. With small diameter dual drum dyno's as you pour more HP to it, the tire looses traction and slips. You need 24" or larger drums to work with combinations putting down anything over about 1,100 hp.. Sent from my XT1585 using ZR-1 Net Registry mobile app Last edited by jss06c6; 02-20-2018 at 06:14 AM.