Dyno Vs.Drag Strip Testing

So take your engine to the dyno, and get the numbers.

Stick it in a car, and go to the track.

The dyno says you made 500 HP.
The time slip says you made 410 HP.

Which one lied, and how do you know?

Your argument is not with me Sir ! If that’s what you want to do than do it ! With me and most we are going to the track to tune our cars ! That’s what the history showes most of all the great drag racers have done ! As I said before . The reality of what or how much horsepower your engine makes is going to be printed on the time slip you receive at the end of the track ! If you don’t agree with that that’s your business !! I don’t care !! But I do know that I can go to the track as I did this weekend! I watched cars, trucks, motorcycles make runs. I could calculate from their ET’s and MPH and pretty close estimates of what a specific weight and figure how much horsepower a specific vehicle was making !! So once again Sir . If you don’t agree with track testing will tell more than any dyno ever could ! I really can’t believe I even having this conversation with a supposed performance individual !! You Sir are the performance person I have ever y’all with that have disagreed with that !! I can tell you if you read and study most all professional drag racers all will tell you the true measure of horsepower and torque comes from track test ! Bob Glidden, Bill Grumpy Jenkins, Reher and Morrison and Shepard just to name a few ! Sir , there is where your argument is !! The true measure of what you actually have is your time slip. Period end of story ! Once again if you don’t agree !! So what ! Who cares ! You do it your way ! I’ll do it mine! As long as we get the results that we need that’s all that matters ! You just like to argue ! Guess I do to ! But this argument is just so dumb !! In very first post in this thread he show the writing in a book ! In that writing it says the same thing I’ve been saying! Once again contact the author of the book he is showing and explain this incredibly dumb argument you have to him ! Or not ! Lol I don’t care ! Have a great night Sir !

Answer Post #14

If the engine dyno says you made 500hp. And your track slip numbers showes to be 410 horsepower I would say that is almost a dead on numbers. 500 hp less 20% getting it to the ground is actually 400 hp. So 410 is really close . Good job !!