journeyman
Active member
Mine has 127-130 psi on the pto, and 145 on the other two. (My Dad's is a hair more on each) This is with two different gauges we own. I have seen as low as 105-110 on the pto side and around 120 on the other two on some Vipers.
lightningsxv
New member
There close but we have a weight disadvantage and f7s have a few more ponys over the viper stock. I ride with a 600 h.o. rev aswell as an f7 like i said there close all depends on all the conditions and who hooks up. Now pipe and clutch your snake properly they will be eating your snow dust.