Olli Snellman

Here's the set for non S car (GT2 front / GT3 rear). I had them made by a local machineshop

SimonK

Just to add some food for thought; Unless you track the car (heat issue) there is nothing that big blacks or reds will do that the OEM stock 951S brakes won’t do. Apart from the looks that is. I am yet to get any fade on the street (and that is hard braking from 160mph downwards repeatedly). We did this test some years back when my friend had put on the big reds (yes you need to invert them) and we measured stopping distances between his (big reds) and my car (mid blacks). We braked from 70-0mph repeatedly - no fade on either car. They stopped exactly the same (165feet). And then I had my blacks sprayed red by my paint shop and there you go… Brakes from 928S4 on a 1350kg 951S are actually much spot on.

Olli Snellman

this same opinion keeps coming on!

Of course there is no need to change bigger brakes, we all now that. There's no need for 3.0 liter 951's or six speed boxes either, or clear indicator lenses or 18" wheels or etc.etc. Some of us just like to modify these cars, it's a hobby for some of us.

333pg333

Well Simon and Olli are both right in what they say, but as someone said on a previous post what about when our cars are producing more than the stock 250hp at the crank? Some of us are, or going to be producing well in excess of 400hp so if it's good enough for GT3's and 996's why not our cars?

333pg333

So Olli, these are the adapters for a non-S car, would an S car also need adapters but a different size? Does anyone know what these adapters would be like or has anyone done at least the 996 caliper conversion on an S car?

SimonK

Agreed.

To answer your initial question, I would get the blacks and have them sprayed...

SimonK

Didn't mean to upset was just giving food for thought. Otherwise I agree with you.

333pg333

Oh don't worry about Olli, he just gets upset when people don't bow down and pay homage to the 6-pot gods! What he and his mate Pete did by putting these on his car is fantastic and a fair bit of work too so we should all be happy that some people just like to make their cars the ultimate expression of their desires. If someone had said even a year ago that he was going to put 6 piston GT3 and GT2 brakes on one of our cars they would have laughed. Now everyone thinks they look fantastic and wish they had them on their own cars. Hahahahahah.

Olli Snellman

S-cars problem is the type how caliper is attached to the spindle. Both S-car calipers and monoblocks have radial attachment, so there is not much room for bolts needed to bolt on adpater to spindle and after that caliper to adapter. It's much easier with non S car because caliper attacment is axial.

Ofcourse also suitable adapter for S-cars can be done, but it will need good planning. It will also be more expensive to manufacture.

SeaCay

Check out VCI for adapters and rotor options for any brake upgrade: http://www.vehiclecraft.com/

kasturbo

I run the big blacks and have been very happy with them.

The arguement to go big or not is stupid. "lets add a lead slugs to each corner just because it looks cool and I can" is how I define stupid.

With any and all upgrades you should first ask yourself what the car is going to be used for. If it is going to be just a street car your stock brakes will be just fine. You get the benefit of reduced rotaional mass and the ability to still run 16" wheels.

If tracking the car then yes there are also benefits to going with larger brakes and no it's not just for looks as some do here. The main reason for larger brakes is to reduce brake fade caused by heat. This heat also causes the fluid to boil and break down. The down falls are you add more unsprung weight to each corner and you can no longer run 16" wheels, thus track tires get more costly.

I run the big blacks because they were cheap, easy to mount, and they work on the track. I've yet to experience brake fade with these brakes and yes I'm too running a high hp car. When upgrading, I tend to stick with the more practical, in your face approach rather then the "bling factor".

Just my .02. Take it for what it's worth.

333pg333

Thanks Kevin that's the sort of reply that is making it hard to resist the BB's. They're cheap (relatively) the rotors are cheaper too to replace, and the whole things just bolt on. The more I think of it, the more it makes sense.
By the way, what spec's does your car have Power/weight, mods etc and what events are you competing in?
Thanks,
Patrick

kasturbo

No problem Patrick. With having the turbo S spindles already, this is almost a no brainer for you. Not having to fool with adapators is so nice. Just bolt on and go. Not to mention that you'll be able to get at least $300 for your used set of calipers, makes this even cheaper option for you.

My car is a full coil-over car running pretty much as stock wieght. The car did a couple heavy years of autox, but now is mainly a DE car. Last year I was running about 315-330 hp at the wheels, but now should be pushing about 400. You can see more details in my Pcar-online profile.

333pg333

I haven't looked to much but Lindsey sell the BB's for $370 each. Is this about right or should I look all over the place and save $10 if you know what I mean?
I will be doing similar events but some longer track days where you can go out as long as you want. Might even buy a set of slicks for those days. My car should be well north of 400 so I'm thinking the bigger brakes will be needed.

anders44

Hi, I'm working on a custom bbk for my 86 mod 951 trackcar, it will consist of

PFC cup rotors 330x28
996 C2 caliper (cheap and monoblock) piston are 36/40, same as MY87/88 spec, 36/38 on My86 spec
PFC 97 / 01-pads

I will put up some pics when done with hub prototype and caliper adapter, theese *should* fit 17" it will have low unsprung weight due to the slim disc and light caliper + alu hub.

stock drilled rotors just ain't fun on track.