Calling for a 17mm Master Cylinder, Don't like the 19mm!! Options

[Artfrombama]

Replaced the OE 17mm that came on my 74 because it was leaking out of the rear. Replaced it with the 19mm that is currently offered as a replacement.

Not happy with the increased pedal pressure required to stop the car, almost scary in a panic situation. No pedal modulation.

I would like to return to a 17mm unit but there seems to be no more out there, does anyone have a source? Is someone in the parts supply chain able to reproduce these parts reasonably?

Thanks!

[mepstein]

I’m with you. I’ve tried both and prefer a 17mm on a stock 914-4. I last bought a 17mm MC in 2014. I paid retail at the time and it was one of the last 17mm ATE brand mc’s that I ever saw for sale. Perhaps there’s a source but I’m unaware of one.

Even with the firmer feel of a 19mm MC, your brakes shouldn’t feel scary. Make sure your soft lines are not old, they will swell and narrow the fluid passage with time, making braking harder and less effective. Call Eric Shea at PMB Performance and get his suggestion on brake pads. I believe he’s a big fan of Porterfield pads but he might have a suggestion that makes you feel better about your brakes. He might also have an alternative MC that can be used in our cars.

[Artfrombama]

I’m with you. I’ve tried both and prefer a 17mm on a stock 914-4. I last bought a 17mm MC in 2014. I paid retail at the time and it was one of the last 17mm ATE brand mc’s that I ever saw for sale. Perhaps there’s a source but I’m unaware of one.

Even with the firmer feel of a 19mm MC, your brakes shouldn’t feel scary. Make sure your soft lines are not old, they will swell and narrow the fluid passage with time, making braking harder and less effective. Call Eric Shea at PMB Performance and get his suggestion on brake pads. I believe he’s a big fan of Porterfield pads but he might have a suggestion that makes you feel better about your brakes. He might also have an alternative MC that can be used in our cars.

New flex lines, kits in all four calipers.