[s-cars] BIRA vs Big Red (ECS2, etc)

James Bowes thermobob at hotmail.com
Mon Aug 2 16:52:05 EDT 2004


could you tell me more about how you did your rear brake setup? I'm 
interested in eventually getting 996 calipers on all 4 corners, but I've 
heard that a pneumatic parking brake is required and gets quite pricey




>From: CaptMagu at aol.com
>To: gary.m.lewis2 at boeing.com, s-car-list at audifans.com
>Subject: Re: [s-cars] BIRA vs Big Red (ECS2, etc)
>Date: Mon, 2 Aug 2004 14:12:38 EDT
>
>You guys like my thoughts??? Very funny...
>
>Anyway, I have had the 993tt Big Red calipers for about 6 years. I have
>always been very pleased with the calipers but rotors are another story. I 
>started
>with Coleman 2 piece rotors and had nothing but problems. I went through 3
>different sets with the same story each time. i had 2 of them turned and no
>matter what, they all warped after within 5000 miles of mounting. Just 
>prior to my
>Big Red rear upgrade dave Jones suggested we go with the Porsche 993tt
>rotors(322x32). He had enjoyed a lot of success with these mounted to some 
>of his all
>out 2.7tt S4s.
>
>Sure enough, I have run these for over 15,000 miles and 6 hard track days
>with no issues. I do run Pagid Orange pads up front on the track days with
>Porterfield R4S for the street and Porterfield R4S pads on the rear Big 
>Reds all the
>time. Although the Pagids are noisy, I end up leaving them on the car for
>several days after the track event because the bite is so great.
>
>As far as bigger being better, that doesn't always work out. Brian Billotti
>was having severe dive problems(bottoming his front coil-overs) with his 
>mondo
>calipers and 355mm rotors on the departed Edwin. He dropped back to 322x32 
>as
>a way of going with more economical 17" tire and rim options and to help 
>the
>dive issues. I have fought to maintain a balanced car for braking and 
>cornering
>several ways. First, I had my Bilstein Sports revalved 30% stiffer in 
>rebound
>a few months ago. Second, I do run the Big Red 993tt rear calipers with 2
>piece 314x30 rotors. These calipers are the actual rear 993tt units with a
>smaller overall dimension as well as smaller pistons. This combination 
>gives me a
>very balanced braking system with none of the characteristic dive from 
>front
>only big brake upgrades.
>
>So, for your initial brake upgrade, i wouldn't go with a rotor larger than
>the Porsche 322x32. This in combination with a set of Pagid Orange pads for 
>the
>track would provide more than ample braking the s-car.
>
>Hap, stoppin dahkine brake talk in Evahboost, Maguire
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