ryoung
06-22-2005, 06:58 AM
From <a href="http://www.gs610.com/index.htm">GS610.com</a>
<i>"In the formulation of Silicone and silicone based fluids there is 16% ± 3% dissolved air (at normal ambient temperatures re:SAE JV1705, Appendix A, paragraph A.2.2.8) relative to the 5% ± 2% dissolved air of glycol based brake fluids. As temperatures increase, the dissolved air (78% of which is nitrogen) in the fluid begins to return to a gaseous state thereby creating a gas or vapor in the fluid. This is really quite similar to the effects of boiling brake fluid. Thus resulting in vapor lock and a soft pedal."
"This gives Silicone brake fluid and its close cousin, silicone ester (as developed later and used by Castrol in SRF Brake Fluid) the very desirable property of a very high dry and wet boiling point, However the negative to its high air solubility is increased compressibility at ambient temperature and greatly exacerbated compressibility at high temperatures."</i>
Does anyone have a link to any data or personal experience with brake fluid compressibility? I'm in a never ending quest for a firmer brake pedal and am currently using Castrol SRF. Have I made the wrong choice? Should I be using one of the other high performance brake fluids like ...
Motul 600
ATE super Blue
GS610
Neo 610
<i>"In the formulation of Silicone and silicone based fluids there is 16% ± 3% dissolved air (at normal ambient temperatures re:SAE JV1705, Appendix A, paragraph A.2.2.8) relative to the 5% ± 2% dissolved air of glycol based brake fluids. As temperatures increase, the dissolved air (78% of which is nitrogen) in the fluid begins to return to a gaseous state thereby creating a gas or vapor in the fluid. This is really quite similar to the effects of boiling brake fluid. Thus resulting in vapor lock and a soft pedal."
"This gives Silicone brake fluid and its close cousin, silicone ester (as developed later and used by Castrol in SRF Brake Fluid) the very desirable property of a very high dry and wet boiling point, However the negative to its high air solubility is increased compressibility at ambient temperature and greatly exacerbated compressibility at high temperatures."</i>
Does anyone have a link to any data or personal experience with brake fluid compressibility? I'm in a never ending quest for a firmer brake pedal and am currently using Castrol SRF. Have I made the wrong choice? Should I be using one of the other high performance brake fluids like ...
Motul 600
ATE super Blue
GS610
Neo 610