Dual Diaphragm Brake Booster 

The camshaft currently in the 433 only ends up with about 10.5-11 inches of vacuum. Just barely enough to run power brakes in my view and results in poor braking performance and feel. Part of improving the car's driveability is a move to a factory 80-81 Trans Am dual diaphragm brake booster as another Covid quarantine project. These are getting very hard to come by but I was able to find it on Rock Auto with a reasonable core charge.

On paper this should increase the pressure available at any given level of vacuum. It's questionable if it is going to be enough but there are some side benefits here. First, the diameter is smaller. The old 11" single diaphragm booster actually would contact the valve cover. This one is only 9" or so in diameter so there's that. Second, my old one had a few leaky master cylinders on it and needed to be replaced. Third, I am converting over to a C3 Corvette master cylinder to work with my rear disc so most of this stuff needed to come apart and custom lines made anyway as this booster positions the master in a slightly different location.

I am under no illusion this will completely solve the brake feel issues and may need a vacuum reservoir or pump to do that with the current cam but I am considering going back to my old cam which didn't create these problems and will likely work well with this booster.

Interesting for you

Fat Heads for Gear Heads

Fat Heads for Gear Heads

Restomod
I just got this in today and think it's too cool to keep to myself. I came across this vendor on ebay and turns out that they will make them in...
Lucille

Lucille

Restomod
Just got done doing cosmetic and detail work done to her.
Starting my turbo build

Starting my turbo build

Restomod
I have a 1992 BMW e30 convertible mods so far:Z3 rack, full ground control coilovers with Koni shocks and struts, interior redone with bigger...
Dream On

Dream On

Restomod
The second gen Camaro has been a car I've wanted for thirty eight years. With raising three boys priorities dictated time and money be for them. ...
Working on KITT

Working on KITT

Restomod
Lots of work but it's all worth it in the end
Old exhaust is out.

Old exhaust is out.

Restomod
I just finished cutting out all of the old exhaust system.