93 cobra booster

[RAYMOND259]

My 90 mustang Gt stock booster doesnt get enough vaccum after i swapped h/c/i. its hard to push the brake pedal down. Will one of these boosters fix this problem and what part do I need for it?Also I try a vacuum Reservoir it didnt help at all.

 

[Rick James]

Changing the booster wont help.Its the camshaft that produces vacum for your brakes,either you have a crazy ass cam in it or you have a very large vacume leak somewhere on the engine itself.

 

[RAYMOND259]

It only have E-cam in it and no vacuum leak in it.I took the intake off 3 time still the same.It have 12 inch of vacuum

 

[BYRDPE]

It only have E-cam in it and no vacuum leak in it.I took the intake off 3 time still the same.It have 12 inch of vacuum

That's about the norm for the "E".

 

[68EFIvert]

How much vacuum do you need for power brakes. I also have an e cam and find the brakes don't work they way I would expect.

 

[RAYMOND259]

I cant even lock up my tires.I think I need a new booster maybe.

 

[BYRDPE]

I cant even lock up my tires.I think I need a new booster maybe.

If you crank up the car and mash the brake pedal do you hear air escaping from the pedal area? If so, you need a new booster.

 

[RAYMOND259]

I just went out and started the car and rev it up and mash the brake I can hear air from the booster.I thought all car make that kind of noise when you push on the brake.