Today I took a little 2 1/2 hour trip to Lakewood NJ with my buddy who was getting his 1996 Trans AM dyno tuned. The shop is called Tune Time for those of you from that area and perhaps familiar with this performance shop.

While there I began a conversation with the staff and this particular performance shop does not use a dyno jet and in fact are not fans of the dyno jet. They use the mustang dyno and according to this performance shop a dyno jet highly inflates the HP and torque numbers.
This shop feels the mustang dyno is superior and more accurate to real world driving numbers.

They claim the mustang dyno puts a load on it so when its being dyno the power numbers reflect what the car would make as if the vehicle was actually driving on the road. This helps with a better and more accurate dyno tune on the cars true power numbers down to the ground when its driving.

According to this business, the mustang dyno will always produce lower HP and torque numbers but is far more accurate when dyno tuning and getting real world numbers.

Any thoughts on this? Which is really the better of the two dyno machines? Do you agree or disagree with this performance shops opinion on the mustang dyno?

 

Both dynos can make whatever numbers they want, it's up to the operator to keep it accurate.

Best dyno for me is the drag strip

 

IIRC correctly the Mustang Dyno features a shoot-out mode that corrects to Dyno Jet power numbers.

In any event don't get caught up in what the dyno reads. There are a lot of factors that can effect the final number.

Some have a correction factor, some depend on the operator, some just cant be accounted for either way.

At best a dyno is good for observing trends in power production and useful for bench racing on the interwebz.

Still pretty fun though to see how your hard earned cash and sweat hopefully pay off on the rollers.

 

Dyno is a tuning device so either one will do that. Mustang Dyno supposedly allows for slightly more accurate tuning to the road being able to simulate load and such. I'm such modern dyno jets allow it too.




I wouldn't be too concerned but for accurate keeping of mods its best to always use the same one, so baseline and each mods are accurate record of each other.