Pretty good results. At what boost level does the car cross the 1:1 pressure ratio threshold? And then what boost do you run at WOT in high gear?

There is a tremendous amount of power left if you can keep the drive pressure on the turbine wheel lower than the intake pressure, or equal.

In regards to the D60 gear setup... we've already been through this. The numerically lowest setup we could find is the Uber rare 3.33 ratio from the LeMans Viper's. Unitrax is a company you can contact to try to source them.

However... the integrity of them is questionable, seeing as they are used parts. In a 3550 lb raceweight vehicle making between 1300WHP and 1700 WHP depending on fuel we had one set last about 45 passes, then the next set last 2 launches. Then the next set lasted 4 launches.

Go figure.

Also, that's good power on VP109... why the unleaded fuel though? European restricitons of some sort, or just easily available? It's rather expensive when C12 will offer better detonation resistance with the lead content.

I guess that only matters if your timing is rather agressive though.

AM