do dyno numbers usually runthe same or more often different. Im not familiar with them but the reason I ask is in the October 2003 Dirt wheels they do a shootout with the YFZ 450, modded Z440 and a predator. In that issue the dyno numbers they give for the YFZ are 36.5 equiped with a FMF, and in the March 04 issue the YFZ vs the 450R the dyno numbers are 39.3 stock. I know Dirtwheels isnt the best place to look at or compare quads but what gives.

 

I should add that in the October issue they state that they had FMF dyno the YFZ and the Z 440 but I couldnt find where they had the March issue dynoed.

 

What did the Z440 dyno?


And Dirtwheels oftens contradicts themselves. One issue a certain quad or part is the best, the next month it sucks. Just the way they are.

 

The Z440 dynoed at 38.5. 2 HP more.

 

If it's on the same dyno, it should be the same. Usually, no two dyno's produce the same numbers though. But that is a BIG spread on small HP, and I think someone is trying to slant things? Some Dyno operators set the dyno up a little "loose". Look at it this way. Dyno operator #1 says that your quad is putting out 45HP. Dyno operator #2 says that your quad is putting out 50HP. Which one do you want to take your quad to for a tune-up?

 

Wow. I figured a 440 would break 40hp. [img]i/expressions/face-icon-small-shocked.gif[/img]