View Single Post
mark houghton mark houghton is offline
Registered User
mark houghton's Avatar
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,776
Originally Posted by Benny771 View Post
According to some friends who use to race these. People would put a reg. long bolt in there and when they wanted more boost they would simply turn the bolt.
I have also seen one that had a flex cable welded to the bolt and run into the car to a adj. knob.
Easy boost controller.
I don't believe it is crucial that the top "breathes" There is not much top pressure in these (travel is quite small).
Good point Benny...having the top closed to atmospheric pressure may not have a big impact since the travel distance is so small.

As far as the bolt used to adjust spring tension on top, that has been discussed quite a bit over the years. Would have to spend some time searching threads to understand the pros and cons.
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 05-14-2010, 10:13 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #8 (permalink)