I have been doing some research and all the BBK have fronts but never any rear upgrades... whats up with that...the only upgrade i have found that offers rear upgrade as well as front is a supra... does anyone know the lug patern on them? this is my winter project and I know im going to have to modify abit but anyone have any other ideas... do MR2s offer a rear brake upgrade?? one of my only concerns is the E-brake positions and mounting anyone know of a longer cable than the highlander...I think thats the longest one ie found

 

Rear BBK= for show/useless on the street or track.

 

whys that.. I know the split is 70/30 but still biger is better... if it wasnt the supra guys wouldnt be doing it

 

Bigger is better = selling point.

Even on the front of the tC, if you are not running road courses, a BBK on the front is of little value. The stock brakes will get into ABS, even with good tires, very quickly. Regardless of how much more braking power you have, in that case it is doing no good at all. Brakes are sized by the weight of the car, size of the wheels, top speed it can reach, etc.

With 70% of the braking on the front of the car, the rears are already doing their best not to lock up under hard braking due to weight transfer. I can tell you this for fact on an autox course.

If you are going to run road courses, then you will see some benefit (especially from the larger surface area and better cooling) of a bbk, other than that they are not doing much for you. On the street, they are mostly for looks on this car.

Guys also slap spoilers and canards on their street car.. doesnt make them needed or worth anything

 

The big name manufacturers are not tackling this because of the e brake issue.

Call Brian at fast brakes
http://www.fastbrakes.com/shop/index.php

He will custom make you a rear Wilwood kit.

 

I would think that should be a very simple issue if they really saw a market for the rear ones. Our ebrake is a hat type rotor with an internal drum brake assembly. They would need to build the drum assembly for the larger rotor, or keep the same size center section with a larger outer ring. I think it is more that most of the market is not going to spend the money on a rear bbk when it will get them nothing but looks, so the demand doesnt warrant it. As mentioned, if you really want them, if the manufacturer above will make you one you can go that route.

 

Bingo! That's the reason why Wilwood refers people to Fast Brakes. Wilwood point-blank told me there is no profit or performance benefit in a tC rear BBK; StopTech (before their parent company bought PowerSlot ) and Rotora feel the same, which is why they never released kits as well.

 

I guess I dont really mind the rotar size... I just hade o have difrent calipers on the front then back... call me a uniformity freak but I just think it looks beter... any ideas

 

thats true, i would love to get my hands on a 2 piston stoptech caliper and retro it to the rear

 

just sayin its nice to see something clean that you know no one else has

 

Size =/= efficient. BBK is a waste all around unless you're bringing the car to the track on a regular basis.

If you want uniformity, just go with some slotted in the front/rear.

 

lol, i love my Stoptech BBK, and the stopping power is definably greater then stock. so w/e im happy

 

The clamping force is greater and comes in faster, so naturally it feels better, but I bet if you did a comparison to stock brakes over a stopping distance, it would be only a slight improvement. If I had the money for them, I'd be rocking them though :D.

 

Since I can get right into ABS on Azenis at virtually any speed, a BBK would provide ZERO improvement in stopping distance. I dont care how much clamping force you have, the car isnt going to stop any faster than the tires will let it. Cars that are running big, super wide, heavy wheels with a lot of inertia or running 150 mph (Again, lots of rotational inertia) need really big brakes because it takes that much clamping force to keep up.

 

eh, i noticed a big improvement over stock...

 

No offense meant but Engifineer is absolutely correct. If you did a real comparison test, not seat of the pants, the only time the BBK would stop shorter(many will take longer;) is if you use them hard enough to induce fade, the BBK will perform longer before doing so, if properly setup, etc.....

Do not get me wrong, I had Stoptechs on my Forester(bad **** Forester) Wilwoods on the TC but now stock and doing just fine(I may go to Stoptechs for next season as the car will be quite fast by then) and I have a 6/4 pot Stoptech setup on my road race Vette(ouch$$$$$$$$)

I have driven 150 miles all out through twisty mountain roads(way in boonies, no traffic at all) and not overheated the stock brakes and that was on R compound tires.

I have no current plans for a rear BBK though I do plan to have one of the top, if not the top Mod class TT tC next season and I run at MMP where the track temp is HOT nearly all the time and the speeds can get quite high.

Rick