New brakes suck

[bmfm64]

Originally Posted by Trackman101

Does this motor have a cam? How much vacuum does it have?

Yes it has a Z06 cam installed in it but nothing out of the ordinary. I have not measured the vacuum but all the forums I've read on the swap there has been no issues with vacuum.

[bmfm64]

I re bled the brakes again last night and no difference....

[Keystone_Hate]

What was the original bore size on the stock MC? If it was different from what you're running now, which I believe you said is a 1" bore, that may have something to do with it.

[bmfm64]

Originally Posted by Keystone_Hate

What was the original bore size on the stock MC? If it was different from what you're running now, which I believe you said is a 1" bore, that may have something to do with it.

I'm not positive, it was a 71/71 mc/prop valve.

[randy500]

I could take a look at the brakes if you would like, Im in Tacoma. I have an adapter to pressure bleed, which is probably what you need done.

[Keystone_Hate]

Normally, a 1" bore will give you more pressure and less volume. A 1 1/8" bore will give you more volume and less pressure. I don't know a whole lot about power brakes, but have you tried running an 1 1/8" bore master cylinder?

[bmfm64]

Originally Posted by randy500

I could take a look at the brakes if you would like, Im in Tacoma. I have an adapter to pressure bleed, which is probably what you need done.

That would be awesome, can you PM me your contact info?

[bmfm64]

Originally Posted by Keystone_Hate

Normally, a 1" bore will give you more pressure and less volume. A 1 1/8" bore will give you more volume and less pressure. I don't know a whole lot about power brakes, but have you tried running an 1 1/8" bore master cylinder?

I have not- only 1" so far. but everyone I've talked to has said the pedal should still be stiff even with a smaller bore.

[Keystone_Hate]

Ok. Just an idea. I had the same issues on my motorcycle. I was running a 9/16" MC to a four puck caliper and i could squeeze it all the way to the grip and it did almost nothing. I went to a 5/8" MC and it worked awesome. Just that little bit of extra fluid volume made all the difference in the world. I know it's not a truck brake system, but it operates on the same principal.