Weak brakes

[NVP66S]

Well, if you really want to be anally retentive and pedantic, :willy_nilly: torque is lbf-ft and energy is ft-lbf, where lbf is pounds force and lbm is pounds mass. It's easier to remember that torque is a force at a radius (not moving) and energy is pushing against a force through a certain distance (which implies motion). But like Slomove, I greatly prefer to use Newtons N, kilograms kg, meters m , and seconds s. It makes everything far less confusing. My tiny brain has always balked at, for example, why calculating gas flow through an orifice should have a term for g, the acceleration of gravity at sea level on this particular planet. g is just there to convert from lbf to lbm. Sheesh.

[speedwagon]

Thanks for the very informative thread even with the engineering wewe contest. In Hilbiliese the discription is; brakes are grip times leverage with the elements of consistency and control being more important. This discussion helps pave the way there. john

[Alfonse]

I read through this whole thread after seeing it have activity on it last night. What a great discussion! It gives me some insight on the box of Hawk brake pads that came in a box with my Birkin as well. Thanks all!

[TheDingo8MyBaby]

Is there a part number for those Performance Friction pads for a Caterham?

 

I have been having Porterhouse make me copies if the no longer available Hawk Caterham pads. I use regular brakes & roters not the uprated brakes & roters.

 

Standard Caterham Brakes should be Girling 14LF. They are also the same as the common later triumph spitfire. Measure your pads and compare before purchase.

 

I haven't used performance friction, but I've also heard excellent things about them from a racing perspective:

https://www.pegasusautoracing.com/productselection.asp?Product=PF044 (or maybe Bruce can beat that deal).

 

I just recently purchased Mintex 1144, but haven't yet installed them. They come recommended across the pond as track day pad that's also good on the street.

I purchased here for $60 shipped

https://www.merlinmotorsport.co.uk/p/mintex-racing-brake-pads-mgb533-m1144-for-ford-lancia-vauxhall-triumph-talbot-girling-mgb533-m1144

[Davemk1]

I'm using the Mintex 1144 and like them very much. Great cold bite and not fade. I've not tracked them, only autox and street.

 

dave

 

Standard Caterham Brakes should be Girling 14LF. They are also the same as the common later triumph spitfire. Measure your pads and compare before purchase.

 

I haven't used performance friction, but I've also heard excellent things about them from a racing perspective:

https://www.pegasusautoracing.com/productselection.asp?Product=PF044 (or maybe Bruce can beat that deal).

 

I just recently purchased Mintex 1144, but haven't yet installed them. They come recommended across the pond as track day pad that's also good on the street.

I purchased here for $60 shipped

https://www.merlinmotorsport.co.uk/p/mintex-racing-brake-pads-mgb533-m1144-for-ford-lancia-vauxhall-triumph-talbot-girling-mgb533-m1144

[yellowss7]

I have Mintex 1144 on the front of the yellow car with the upgraded ap calipers. They work great on the track. The orange car has the Pagid pads up front and to me they don't provide the same level of feel, but they do stop the fat bastard pretty well too. Tom

[JohnK]

It's about convenience. You can easily convert the car's energy into ft-lbs (if you'll allow an old-timer his habits) and when you go to calculate what the brake system has to generate to equal the energy of the car, it's all in the same units, and it's easy/natural to view the wheel with the brake parts as a torque. And then you multiply what the wheel and brake pads deliver by their coeficients of friction. It just saves a lot of thinking to work in the same units across the calculations and avoid errors in conversion factor arithmetic. Most software offers easy conversion into what's the unit that helps you vizualize the problem (but then, I was trained as a Biologist.)