Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - 7" vs 8" Dual Booster
View Single Post
  #2 (permalink)  
Old 11-09-2012, 07:35 AM
cobalt327's Avatar
cobalt327 cobalt327 is offline
Last wiki edit: Intake manifold
Last journal entry: 1980 Malibu Wagon
Last photo:
Join Date: Mar 2009
Location: Atlanta
Age: 61
Posts: 5,031
Wiki Edits: 1616

Thanks: 128
Thanked 603 Times in 552 Posts
Originally Posted by jayd_2 View Post
Is there that much difference between a 7" and 8" dual boosters power assist capability? I've got about 16 vacuum at idle will I gain much by switching from a 7" to an 8" dual booster?
You will gain about 100 psi by using the larger booster. Whether or not it will be enough to satisfy whatever the deficit is, I cannot say w/o more info.
Reply With Quote