Hawk Pads

[Payton King]

from Wilwood. I personally would get a set of these pads and also try the Brembo fluid. I think it will give you the feel you are looking for...

I had a different type of fluid and my pedal was almost spongy for lack of a better term. The fluild changed the feel of my pedal completely.

Why are you looking to increase the master size...fluid volume for pad knockback?

[chr2002ca]

Originally Posted by Payton King

from Wilwood. I personally would get a set of these pads and also try the Brembo fluid. I think it will give you the feel you are looking for...

I had a different type of fluid and my pedal was almost spongy for lack of a better term. The fluild changed the feel of my pedal completely.

Why are you looking to increase the master size...fluid volume for pad knockback?

That's some very interesting info about the brake fluid. I've been disappointed with my spongy pedal using Prestone DOT 5 Synthetic. After reading your feedback, I've gone ahead and ordered some of that Brembo SPORT.EVO 500++ brake fluid from Amazon.com and I'm going to give it a shot next weekend. Hopefully I'll notice the same improvement you did. Amazon had the best price I could find: 3 bottles shipped for $41.

[Vegas69]

I've got a good firm high pedal except when racing when it drops but stays firm. You guessed it, the 1 inch bore would cut the knocback in another 1/3rd. I have one that was traded to me. I'm going to try the pads first and go from there. I didn't know any fluid was compressable?

[Payton King]

but it did make a difference. Not sure which Brembo fluid I have but that sounds right. Look on carbotech website and you will see what I used.

If you are using the DOT 5 stuff that is a silicone based fluid and should not be used in a performace situation. Make sure you flush it well to get all of that stuff out. I would purchase some DOT 3 or 4 stuff and use it to flush it out and then flush that stuff out with the Brembo fluid.

I was running the Prestone DOT 4 synthetic and apparently it sucks. LOL

Per Carbotech, I took a 2 inch abrasive disc and went over the rotors to get the old brake material off before I put the new pads on and bedded them in.

[Payton King]

If you go to the 1 inch master you could always drill a hole higher up and increase your pedal ratio to get the effort back down and still have the fluid volume you are looking for...

[Vegas69]

One step ahead of you I already drilled a hole but it marginal if there is enough clearance for the pin inside the pedal housing and it decreased the travel of the master cylinder piston to just shy of the master cylinder piston travel. I'm running the Wilwood old fashion dot 3 with a hint of Autozone dot 3 since I ran out last time. I'll do the pads first and take it from there.

[GregWeld]

I've seen people add a hole too high up (in an effort to get more pedal ratio) -- and then they go "over center"... once the pedal/rod goes over 90* --- you're REDUCING pressure on the master... NOT GOOD!