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Drag Racing Discussions => Front Engine Dragsters => Topic started by: crider on August 13, 2016, 06:06:01 AM

Title: Master cylinder
Post by: crider on August 13, 2016, 06:06:01 AM

What bore size master cylinder works best on a FED? I'm using wilwood dynalite four piston calipers

Title: Re: Master cylinder
Post by: fuel749 on August 13, 2016, 06:23:43 AM

I usually use 7/8" on four piston calipers. With the right pedal/lever ratio you should be right where you want to be with good feel.

Title: Re: Master cylinder
Post by: crider on August 13, 2016, 08:01:47 AM

Thanks!

Title: Re: Master cylinder
Post by: dreracecar on August 13, 2016, 08:41:28 AM

7/8 is pretty much a standard for the 4-piston deal.  We are not road-racing these cars so absolute peddle ratio numbers are not too much a priority.

Title: Re: Master cylinder
Post by: LZ on August 13, 2016, 10:01:17 AM

To add.

http://www.markwilliams.com/braketech.aspx

 :)

Title: Re: Master cylinder
Post by: crider on August 13, 2016, 01:20:52 PM

Thanks for the help guys. Gonna get the master ordered today. One more step in the right direction. Still hoping to make a pass or two before the snow flys

Title: Re: Master cylinder
Post by: dusterdave173 on August 14, 2016, 10:14:30 AM

7/8ths here as well and my pedal ratio is nowhere near what they say needed but stops like a dream with no issues--I have a 2 lb residual valve too