psreynol

what is the recommended starting point for s1 class brakes. it seem manual valve bias adjustment is not permitted. is there a recommended pad combination. M.Y. proportioning valve, I was going to mount a bias valve in the cabin but I would rather make changes that fall within the rules. not that it would be a big deal to change back but a race car without a class is homeless. I only do DE now but, with all the work I need to do perhaps I bump this back. I have11' willwood up front, running dtc60 all around. can anyone speak to the dtc60 hawk pad with a stock bias valve with a 11'' rotors up front? what about 10.6 2 piece in the rear? do you guys running a stock bias valve run same race pad front and rear? or something less aggressive in the rear?

curly

iTrader: (25)

Are you traveling to California any time soon? There's also no point in building for a class if there aren't any races withing 2000 miles of you.

If you want to be competitive, I'd upgrade to a 11.75" setup up front, sport brakes in the back. Then balance bias with a better pad then the DTC60s like a Cobalt xr3/5 setup.

psreynol

I guess it pointless to try follow the rules to a class I wont be racing. my logic was that if I went to sell the car someday it would only help. considering the car is along way off from the spec, due to ECU and turbo, it is probably not a realistic consideration.

The hawk dtc-60 is a good race pad. you suggest I go with a lower friction coefficient pad, something much less aggressive. may well be correct. guess I have some reading to do.

thumpetto007

iTrader: (15)

Shameless plug...

I have the perfect solution for you. I have the exact brake kit you need, with street and track pads. Well balanced and you don't need to use the prop valve...

https://www.miataturbo.net/miata-par...bixenon-90925/

Savington

iTrader: (31)

11.75" front, Sport rears, Wilwood prop valve, pads to taste (DTC-60, G-LOC R12, PFC01/11).

My S1 car runs Trackspeed's 11.75 Superlite setup. Two full weekends on them now and the pads are about 15% worn. Gotta love 20mm pads

joyrider

iTrader: (8)

Probably off topic, but which pad seems like the best option on the rear for sport brake and TSE 11.75'' front with DTC-60.. YMMV thing but you have a lot of track time and your input is more then welcome.

I tried Carbotech XP-8 and 10 but I have to adjust the brake bias all the way to the rear and it's still not perfect.

ThePass

iTrader: (3)

I liked DTC-60 all around during my time on those pads.

psreynol

approximately how was your bias valve adjusted? say turns from full rear? think I was overly cautious with adjustment and almost lost a set of fronts. I hope a good burn out will get back to good enough.

Savington

iTrader: (31)

Doesn't matter how his valve was adjusted. Your car is totally different.

psreynol

Obviously, just wanted to get an idea for comparison. not sure if you know this but locking up the brakes with track tires is something one wants to minimize, especially when it is suggested to start at minimum rear brakes and many people end up at nearly max rear

emilio700

iTrader: (3)

Vegas is getting our own prototype Wilwood Superlite 11.75 radial mount front along with OEM Sport rears and NA8 calipers. G-Loc R18 front, R10 rear. 1" master cylinder is preferred for a firm pedal.
Our car will have no booster and Tilton pedals with individual masters and reservoirs. We did this to allow a straight cage bar from the dash bar/door hoop junction to the shock tower.

In general, for fast and/or heavy track cars on big tires: 11.75 front with Sport rears. Whether you use the OEM Sport caliper or the smaller piston NA8 caliper depends on your pad and master setup.

slammed200

iTrader: (8)

Isn't SuperMiata pairing up with WRL and coming to the Midwest or at least East a bit? I've not seen the 2017 schedule but I thought that was announced as much.

Also, +1 for the 11.75" setups out there, V8Roadster offers a great option as well. Opt for the radial setup whechever setup you go with for awesomely thick pads!

emilio700

iTrader: (3)

WRL's site has info on Supermiata.

We have been offering and using the V8R stuff for years with good results. Going forward, we're doing our own to lower the retail price and add some features.

Shandelle

The V8R Pro radial kit can use an assortment of calipers. It was designed around the Dynapro radial because it was the best suit for all points - pad size, wheel fitment, cost, weight, etc. It can be sourced with Superlites or FNSL4R for the larger pad option but with a wheel fitment and weight penalty. Those upgrades, if desired, can be ordered to suit. We do not believe there are benefits unless you are running 12+ hour endurance events.

There is no comparison between the universal Wilwood calipers to the Miata specific StopTech offerings. That's reflected in the price.

" We have been offering and using the V8R stuff for years with good results. Going forward, we're doing our own to lower the retail price and add some features. " - Interested to see what you guys come up with and engineer on your own.

psreynol

Yeah cool thanks for the help. so what changed your mind? obviously not experience because you purchased the prop valve (pictured).