what about if we get tire spin ??? that mean we cant get good dateloge read !!!!

what about if we get tire spin ??? that mean we cant get good dateloge read !!!!

Use the next higher gear.

Or are you already in top gear?

@Qassim, if you're getting wheel spin then the first place to start is with the way the car is strapped to the dyno. Proper strapping technique is also important as many tuners tend to strap the car backwards rather than strapping it down. Alternatively Kyle's suggestion is also valid- Try using a higher gear where the torque multiplication is lower. This will result in a higher terminal speed so you need to make sure you're within the capability of the dyno.