Re: Brakes for a Fiat 131 rally car
Posted: March 31st, 2011, 9:09 pm
Thanks Tom.
Clearly I am not an expert on calipers. I have seen statements that counter-positioned cylinders "squeezing" the rotor from both sides do not produce double the force of a single cylinder pushing the rotor against a fixed back. I am not really sure how this applies to our calculations.
but the setup is this :
The ATE has one cylinder per caliper side, or two in total. The cylinders are counter-positioned "squeezing" the rotor.
Using common sense, since there are two cylinders I called them "2 x 48". But I know that common sense is the feeling that tells you the earth is flat and thus now may not be the ultimate guidance.
I do admit I am confused. Please guide me as to what is what and how to call it.
This is how I called it :
I plan to use the AP historic range caliper CP 2361:
( see details : http://www.apracing.com/calipers/produc ... E_2701_656)
Hope that since the RS 911 caliper as well as the AP CP 2361calipers are both fixed and have the same construction principle (counter positioned cylinders) the basic proportion should hold.
Please help !
Miro
Clearly I am not an expert on calipers. I have seen statements that counter-positioned cylinders "squeezing" the rotor from both sides do not produce double the force of a single cylinder pushing the rotor against a fixed back. I am not really sure how this applies to our calculations.
but the setup is this :
The ATE has one cylinder per caliper side, or two in total. The cylinders are counter-positioned "squeezing" the rotor.
Using common sense, since there are two cylinders I called them "2 x 48". But I know that common sense is the feeling that tells you the earth is flat and thus now may not be the ultimate guidance.
I do admit I am confused. Please guide me as to what is what and how to call it.
This is how I called it :
I plan to use the AP historic range caliper CP 2361:
( see details : http://www.apracing.com/calipers/produc ... E_2701_656)
Hope that since the RS 911 caliper as well as the AP CP 2361calipers are both fixed and have the same construction principle (counter positioned cylinders) the basic proportion should hold.
Please help !
Miro