There's probably less than 1% of us that need more than Big Reds/Blacks. People like Bruce who is pushing the power to weight boundaries fall into that 1%. Even guys with 400+hp doing DEs don't need these. Of course there's nothing wrong with doing it like Olli has shown. Perhaps the downside might be the added inertia and unsprung weight of the larger rotors for those that just want it for show, and they do sure look nice on eg Pete's old car.

 

LOL! Im not even sure I "NEED" these calipers at 2300lbs. But I Do like the security of the larger rotor to absorb more heat, Seems like there would be less cracking in the holes of the rotor per track weekend. Less wear and tear really on the expensive rotors and pads. Also for the slightly greater brake leverage. And of course the bling factor of Monoblocks inside the wheels doesn't hurt.

 

I am currently running the monoblocks on my car, and I personally like the braking power of these calipers, as I am able to out brake most cars on the track even though I do not have ABS. I have had the same rotors on this car for 2 years and have participated in about 14 DEs over that time period, and they still have life in them. Newer technology means things have been improved, i.e. less flex in the caliper under braking, larger pads, personally I think the pads are easier to change. The 996 calipers are now at a competitive price to the older technology calipers, so why would you settle for less at about the same cost?

 

What bias valve are you running

1% Outlaw biker rule now applies to rlm and soon 95one

 

The stock one.

 

Update 1st page

 

I don't plan to upgrade my 951 brakes for a really long time, but these are hard to pass up at that price!

How many are being made?

 

5 sets

 

****! Damn you S2 for eating this months car money!

 

There will always be a pair around for sale I'm sure.. Whenever you're ready.

 

FWIW, the only disadvantage to the 996tt calipers/rotors is the weight. The 996tt rotor is HEAVY!!! If I recall correctly (its been 7 yrs since I did this) the rotor weighs 26 lbs!. So doing this mod increase your unsprung and rotating mass significantly.

I did this mod but with 6 piston GT2 calipers on my old 968 back in 03. However I did a custom 2 piece rotor from Colman Machine that only weighed around 18 lbs (if I recall correctly) The custom 2 piece rotor is really the way to go but does require quite a bit more effort and futzin' around than simply grabbing the factory piece and bolting it on.

Michael

 

Well that's an easy fix. Use the Carbon Rotors.

The advantage of using the Monoblocks is also the choice of rotors. You will be able to find slotted ones to fit the new setup vs stuffing around getting some made up to fit Mo30 Big Red setup. Maybe on Bruce's car being so light and with a better heat dispersion with this setup, he won't crack the discs so much if using X drilled...I'm not sure on that, but certainly in my experience the X drilled do crack pretty easily on a stock or close to it weighing car. I got about 2 meetings out of my first set.

The added inertia is a concern and perhaps ironically on a super light car this might have more of an effect? Having said that, I still go back to the fact that on some of the really modified 951s why shouldn't we have something close to a modern rear engined Porsche in terms of Brake Performance? A GT3 has something like 440hp and 330lb/tq. That is well short of some of our cars. Or am I just oversimplifying this?

Well done Bruce on the quick turnaround of these too.

 

Just to compare the apples to apples.. to say the 993TT/928 Big Black-red upgrade. The rotors are slightly heavier because they are a slightly larger diameter. 12.6" vs 13" BUT the caliper is 2lbs lighter. So you get the added brake leverage without any additional weight compared to the old 993TT brake upgrade.. Now compared to the stock set-up.. yeah.. its a lot heavier. So is a bigger turbo! lol


Im actually going to use the solid ones and then I will slot them myself. Shouldn't be any cracks. But no, I don't think the cheap $150 Drilled ones will last nearly as long. But as with any brake rotor, Buying the better designed ones will of course last longer. Its all about your personal budget. If I wanted, I could even throw the 6 piston ones on here using the same adapter. (maintaining the slightly smaller 330mm rotor rather than the designed for 350mm rotor) it will still work. But at my weight, I kinda laugh at the idea. Maybe if I see 220mph straights with a hard turn at the end.. I might think about it.

 

You running ABS Bruce? I'd be concerned a little with locking up too? Are you sticking with all the stock hydraulic setup? Perhaps you could go to a dual MC with adj setup?

In terms of weight, according to this list the 330mm goes up 9lbs compared to the 322mm rotor! That's a lot of extra unsprung weight, but more, a lot more inertia. I can't imagine that it won't have a noticeable effect on your handling?

http://www.pelicanparts.com/MotorCity/wmv/brakes.htm

The G forces on hard braking in your car are going to suck the tears right out of your eyes!!

 

Bob, did you go straight from stock brakes to your current setup or did you graduate through the Big Red mod? Have you noticed much difference with the much larger rotors in terms of handling via extra inertia? Have you only done your fronts and if not, what's on the rears? Did you stick with the stock m/c etc? How's your pedal pressure?

thanks