yes actually it is...but it was due to the fact everytime i made a pass i could smell my clutch for 5-10 minutes and it probably held 60-70% of the power it should have. When i went to 5.5 psi i got a new clutch but still trapped about the same times, but with some traction and my clutch actually grabbing it went from a 9.9 to a 9.4X (still 5.5 psi) Gotta go run it at 10-12 intercooled on race gas and DR's. Besides you'll never see any mid 9s anyways h: