In a hill climb? Plenty of options. Rocks, trees, spectators...

 

The differance in stiffness with the dynapro radial over the dynalite has to do with the portion of the caliper Geometry that attaches the two halves of the caliper together. the dynapro radial raps around the circumferance of the rotor further uses larger bolts and has larger spacing between the two bolts holding the caliper halves together providing a larger moment arm to resist flexing. The radial mount itself isnt the deal. It is a larger caliper that is stiffer at the expense of weighing a bit more. as a side benifit it occomodates thicker pads that have the same surface area so they last longer and has a better radial clearance.

 

Bob I know this. I was talking about dynopro radial vs dynopro lug.

 

I urge you to look at the Dynapro radial vs the Dynapro Lug. the lug caliper looks nothing like the radial and does not have the same features that make the Radial mount a better caliper. note larger cross bolts and larger cross bolt spacing, radial clearance. These werent even started from the same geometry in the design process it looks like to me.

 

the answer to the best brakes for miata uprights is hans device.

 

I believe radial mounts get their extra flex strength from the bracket. By the time you hollow out a caliper for pistons etc there is not much strength left in the body. The inside edge (closest to hub) is the weakest part. Through bolting a hunk of material to one side dramatically increases the flex resistance of that side. If you look at radial flex videos you'll notice the radial mount side stays put while the outside flexes.

The only potential concern would be how that one side flexing affect wheel bearings etc.

I am still running the wilwood dynalights. I welcome a new caliper that does not flex as much. Maybe Stoptech will release their new one this year.

 

The kit I referenced in post 2 should fit this description.

 

OP posted a broken link

2jzlocost | Building High Performance Locost Sportscar from Scratch

 

No pictures, no description, no add to cart button, no confirmed in stock ready to ship = nobody yet. It's going on 9 years of nobody having a better kit.

 

Generally the reason manufactures do radial vs lug mounts has nothing to do with strength. it has more to do with cost and packaging. if you have a very cheap caliper and you want to make it so it's cheap to use, go lug mount. a radial mount is used for a more expensive caliper. that way you can make it fit a wide range of applications.