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| Master cylinder upgrade | |
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| Topic Started: Sun Sep 20, 2009 7:59 pm (101 Views) | |
| Richy190E | Sun Sep 20, 2009 7:59 pm Post #1 |
Sales Rep
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Hi, If I were to upgrade my master cyl to 16v spec would I notice any difference on the stock brake discs? i am planning to upgrade calipers/discs later on but want to get the master cylinder in place first. cheers. R. |
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| Johnboy Mac | Sun Sep 20, 2009 8:27 pm Post #2 |
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Good question Ricky. I suspect fitting the 16V m/cyl might lead to less brake pedal travel and poorer modulation when braking with the stock brake system but not 100% sure.
Edited by Johnboy Mac, Sun Sep 20, 2009 8:27 pm.
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| alogaparaloga | Sun Sep 20, 2009 8:41 pm Post #3 |
crazy mind
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One more question. When you upgrade m/c to 16 valve one does the vacuum booster has to be changed or is the original suitable for the job? Edited by alogaparaloga, Sun Sep 20, 2009 8:42 pm.
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| Johnboy Mac | Sun Sep 20, 2009 8:58 pm Post #4 |
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If I was fitting 16V master cyl and brakes I'd also fit the 16V servo too. |
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| jeremy | Mon Sep 21, 2009 5:55 am Post #5 |
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Would upgrading to a 300-24V set-up be overkill ??? Jeremy |
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| Martrider | Mon Sep 21, 2009 7:31 am Post #6 |
Longest build time in history?
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No, it would work, it just means there would be extra capacity if and when you wanted to upgrade. I would definitely do the master and slave from the same application though. As i said before on another thread, a Sprinter 109 upgraded master cyl has been used successfully on a big brake setup, but it just depends on which calipers you are going for. Decide on the brake set up first, and then match the master cyl, the only way to do it. 
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| Richy190E | Mon Sep 21, 2009 11:20 am Post #7 |
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My thought was bigger piston at the master cyl end would result in greater pressure being applied at the caliper. Or am i mistaken? |
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| Martrider | Tue Sep 22, 2009 7:14 am Post #8 |
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Longest build time in history?
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I had to give back all my cheat sheets of calculations when left my last company which build and maintain hydraulic everything (mainly industrial jacking) or "fluid power"! as they very poncily called it. Yes, what you say is true but i was under the impression that the master and slaves have a relief valve built in (the same as jacks) so as not to exert too much pressure. i.e, not so much as to burst the rubber brake lines that we all replace with Goodridge. This would also have ramifications with ABS if it is fitted i would imagine. For example, a 10t cylinder jack with the correct seals and built to tolerance would actually be able to lift 25t or more (depending on the jack of course) but the blow off valve will be set to 12t for safety. That valve adjustment in turn would be sealed so that some stupid operator wont over load it and hurt themselves - or somebody else. This is why the whole lot should be upgraded in one, calipers and master cylinder. But to be honest, you will get a better braking result if you upgade the friction materials. Green stuff pads and grooved discs and bed hem in properly. As far as i know, the master cyls are the same on base model 190s as the 16 valves. They just use larger capacity pistons (therefore higher volume of hydraulic fluid) but have the same amount of force actually applied. Does that make sense? |
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