Originally Posted by bjuice
hey thanks for reply...pulling from valve cover..no data recorder..
i think the smart thing to do is intall a vaccum gauage ..i agree with you 20'' would be extreme...
i need to do some checking and see what these 4 vanes pull...
thanks for reply.
Been running a dry sump for 6 years. (Burning alcohol) You would be smart to install a vacuum gauge and a check valve to control how much vacuum you are pulling. If you get up to and above the 20" of vacuum, this is where the wrist pins starve for oil and will go away on you. Not Good.
We regulate ours to 4" at full throttle down track and have found that as long as there is vacuum, your performance will stay the same reguardless of how much.
It will let you know how tight your engine is too.
gyrogearloose