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With your engine off, try pulling off the brake booster vacuum hose. You should hear and feel a huge amount of air being sucked out. There should always be vacuum at that hose (engine on or off). Have you removed your intake recently? If so, have you checked the back of the intake to make sure that your brake booster vacuum hose is connected? Just some things to look at.
Like the others have stated, the brakes on these cars are the best in the industry. My eyeballs almost come out of their sockets when I hit the brakes.
When I Pull the check valve out of the booster, I get a small bunch of air being sucked in, not what I remember as normal for a brake booster. So I know what you are talking about. Go try it on yours for me and report back. Then try it in the AM after sitting all night. Mine has no pull at all after sitting.
The whole combo is new, so yes the intake has been off. With that hose off I doubt the car would run,,,,,, that would be a massive vacuum leak. I hose clamped it and actually had to extend the hose because it is a FAST intake. I will check those clamps however.......
I determined that the booster is fine. I did need to tighten my hose extender clamps (I had to lengthen the hose to fit the FAST intake manifold. I cut up one of the AIR lines for the tubing)
I pressure bled the system and saw no bubbles.
I also removed the front pads which appeared glazed and sanded them on the bench top. They are soft and deglazed quickly.
Ran out of daylight, so I'll see what is up in the AM.
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.