RCU Forums - View Single Post - OS .21 VZB V-Spec compression?
View Single Post
Old 01-07-2008, 09:30 PM
  #8  
46u
Senior Member
My Feedback: (3)
 
46u's Avatar
 
Join Date: Jan 2005
Location: Macon, GA
Posts: 22,095
Likes: 0
Received 0 Likes on 0 Posts
Default RE: OS .21 VZB V-Spec compression?

I have a compression gauge but there are not any standards for what compression should be on RC engines. The way you use them is after break in check compression and then check it from time to time to see if you have a big drop. I never use it and run an engine till I start having problems then take the piston and sleeve out and see how far I can push the piston through the sleeve. I have a V spec and have no problem turning it over with the plug in by hand. I take my engines apart about every 3 gallons and check them. My STS engines keep a tighter pinch then my V Spec.