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SVT Shelby GT500
Huge brake upgrade for S197 chassis
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<blockquote data-quote="merkyworks" data-source="post: 16279417" data-attributes="member: 179203"><p>OP I think your getting some of the info a little mixed up, brake upgrade options are.</p><p> </p><p>* 13-14 GT500 15" rotors with 13-14 GT500 6 piston calipers. This will bolt to current spindles. </p><p>* 13-14 GT500 15" rotors with S550 6 piston calipers (these are different from 13-14 GT500 6 piston calipers). This will bolt to current spindles but the S550 calipers does increase the pedal travel distance a little, due to difference in master cylinder between S197 and S550. Some don't find this to be an issue and some don't like it and switch back, its a user preference really. </p><p>* <a href="http://fulltiltboogieracing.com/2013-2014_Shelby_Brake_parts.htm" target="_blank">Full Tilt Boogie Racing</a> GT350 conversion kit for S197 chassis, 15.5" rotors and GT350 6 piston calipers (these are different from 13-14 GT500 6 piston calipers and S550 6 piston calipers). Kit includes adapters to allow GT350 calipers to be able to bolt to S197 spindles. Also front wheel diameter and offsets will come into play to ensure the calipers have clearance. </p><p></p><p>Unless you have upgraded to wider and stickier front tires, factory 14" 4 piston brakes have more than enough clamping force to exceed the front tire traction. Granted with pad upgrades. </p><p>Unless using aluminum hat 2-piece/floating rotor the weight penalty of 15"+ rotors isn't worth it, 15" floating rotor sets start at $1000. </p><p>Need to balance front and rear braking forces so upgrading to 14" rear rotors is a must. </p><p>While 15"+ 6 piston calipers look freaking bad ass, no question about it. They really only help in racing applications and thermal management, on a street car they won't make you stop any quicker. </p><p></p><p>When it comes to the GT350 brake conversion kit i'm actually wondering if this is to much braking force for the factory S197 brake bias and if an adjustable proportioning valve would need to be installed to balance the car out. For the record I have not data to support this thought so I could be 100% wrong on this. Maybe FTBR has some data on this one way or another.</p></blockquote><p></p>
[QUOTE="merkyworks, post: 16279417, member: 179203"] OP I think your getting some of the info a little mixed up, brake upgrade options are. * 13-14 GT500 15" rotors with 13-14 GT500 6 piston calipers. This will bolt to current spindles. * 13-14 GT500 15" rotors with S550 6 piston calipers (these are different from 13-14 GT500 6 piston calipers). This will bolt to current spindles but the S550 calipers does increase the pedal travel distance a little, due to difference in master cylinder between S197 and S550. Some don't find this to be an issue and some don't like it and switch back, its a user preference really. * [URL='http://fulltiltboogieracing.com/2013-2014_Shelby_Brake_parts.htm']Full Tilt Boogie Racing[/URL] GT350 conversion kit for S197 chassis, 15.5" rotors and GT350 6 piston calipers (these are different from 13-14 GT500 6 piston calipers and S550 6 piston calipers). Kit includes adapters to allow GT350 calipers to be able to bolt to S197 spindles. Also front wheel diameter and offsets will come into play to ensure the calipers have clearance. Unless you have upgraded to wider and stickier front tires, factory 14" 4 piston brakes have more than enough clamping force to exceed the front tire traction. Granted with pad upgrades. Unless using aluminum hat 2-piece/floating rotor the weight penalty of 15"+ rotors isn't worth it, 15" floating rotor sets start at $1000. Need to balance front and rear braking forces so upgrading to 14" rear rotors is a must. While 15"+ 6 piston calipers look freaking bad ass, no question about it. They really only help in racing applications and thermal management, on a street car they won't make you stop any quicker. When it comes to the GT350 brake conversion kit i'm actually wondering if this is to much braking force for the factory S197 brake bias and if an adjustable proportioning valve would need to be installed to balance the car out. For the record I have not data to support this thought so I could be 100% wrong on this. Maybe FTBR has some data on this one way or another. [/QUOTE]
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Huge brake upgrade for S197 chassis
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