Jim Green's 90q 20vt - 636whp 07k

[Mcstiff]

That's awesome Jim. Keeps me motivated to work on my car.

:stupid:

[SEStone]

If you want to keep an OE-style e-brake, Centric sells rebuilt S8 calipers that include the carrier for $75 at wholesale cost (I sent them some junky VW aluminum calipers back as cores...). These use the same 90* e-brake mechanism as the old cars, but are the big aluminum calipers with the big piston. With a B5 A4 rear hub, I'm running OE S8 rear rotors with the S8 carrier. To step up to a 300mm rotor, find a 256mm carrier and run the 034 adapter brackets to put you at the right radius and offset. There are a bunch of pad options available (not sure if it shares the same type with the UrS stuff), and they're nice and light.

Also, I'm not sure what sort of life and cost you're getting out of one piece/OEM rotors...but going to a two-piece 30 or 32mm rotor with some huge vents in the middle (the most economical would be a Coleman rotor) would get you something that lasts soooooooo much longer and is better suited to the task. The factory 321/323 rotors are really designed for heat capacity versus surface area/venting...most of the thickness is taken up in the faces, with a skinny little vent down the middle. Compare that to the giant Brembo GT rotors I get spoiled with at work (320x28, 355x32, and 380x32), or a factory Porsche rotor (which are works of OE equipment art), and you can see a huge difference in design/performance priorities. The Brembo GT rotors on our 997 took a HUGE amount of abuse last season, over 3000 miles on the track with an r-comp'd 800hp 3800lb beast of a car that saw 170mph a couple of times a lap at BIR or Road America. We could easily get another few events out of them judging by wear thickness and condition of the rotor face.

Sam

[Zerb]

They pulled me a few times down the straits on my low boost map, and then I would catch them very quickly in the corners. After this happened a few times, I went to the high boost map

:woowoo:

[a_CQ]

3000 track miles, Sam? Really?

2 seasons on my stock rotors and they just started to develop some cracks. At ~$60 a piece you can't beat that.

[123quattro]

Jim, you need bigger rotors/calipers. There just isn't enough mass in the rotor to deal with all that energy.

The car looks awesome.

[audifreakjim]

John, are you saying bigger than the 996/321x30 combo?

Some pics from the track photographer
http://vanhap.com/imgs/2012/February/02 ... index.html

http://vanhap.com/imgs/2012/February/02 ... _0708.html
http://vanhap.com/imgs/2012/February/02 ... _0931.html
http://vanhap.com/imgs/2012/February/02 ... _1065.html
http://vanhap.com/imgs/2012/February/02 ... _1384.html
nom nom http://vanhap.com/imgs/2012/February/02 ... _1767.html

[123quattro]

Hi Jim,

No, those would be fine. I just meant bigger than what you currently have. The 996 setup you are talking about is basically what I have on my 928. It works really well.

I have a spare pair of brand new 993 (non turbo) calipers if that helps any? I was going to put them on my 200 20v, but I'm just going to throw a spare pair of HP-2s on it.

[Mcstiff]

So where is the vid from the ZR-1

[Hank]

Jim, the 996tt calipers are bigger pistons and pad area when compared to the regular 996 units, but be aware that they require custom brackets not available from Apikol att the moment. I am a sneeze away from converting my front to b4 stuff, so maybe i'll make the right brackets for them. The benfit of the 996tt caliper is that they are dimensionally bigger than 996 calipers, and thus not as desireable for the regular market. I think I paid 450$ shipped for mine with lines, new pads and all the shim crap. The other cool part is that the 996 non turbo calipers were designed to go over 318(IIRC)x28mm rotors, where the 996 were designed to fit over larger 330x32mm rotors. 32mm puts you closer to 1.25" thick rotors which is more readily available for rings if you go to a two piece. The problem is that the larger calipers do pose fitment issues with the larger rotors in 17" wheels. I can get my fat fives on currently, but with the bad offset of the 1 piece upright, the enkeis don't fit without spacers. I am pretty sure they would with a 2 piece though.

[Highlander]

That's one bad ass car Jim.

Cheers,


Craig

[Mr. Acoustics]

Car looks great in the pictures.

Now that you are passing ZR1's, when do we get to see a Ring' time?

[85oceanic]

Dude, Jim, That is freakin awesome that you laid the smack down on some ZR1's. You know what I think would be sweet? If someone could pull of a good set of daily drive-able carbon ceramics, where you wouldn't have to fight warm up/squeal crap.

http://www.carbonceramicbrakes.com/ENG/Products/

EDIT: Of course CC brakes are NOT affordable.

[SEStone]

This car turned out so sick



That's some pretty cool hardware you're running around with, what kind of club was this event with?

Sam

[AudiSport4000]

Would you look at that! Amazing....

Bravo, Jim!

[123quattro]

EDIT: Of course CC brakes are NOT affordable.

Cheapest stuff to buy is off the ZR1/Z07. I think rotors are $1500 each and bigger than any of the Ferrari stuff? The downside is you have to run at least 19s.

[Apriliapilot]

I was under the impression that the ZR-1 and the Enzo have the same brakes

[85oceanic]

I was under the impression that the ZR-1 and the Enzo have the same brakes

Same here. What about some aftermarket kit?

I read over on Black Forest Industries that Brembo is coming out with a low cost rotor.

OH and there is always Rotoras for ... ummm ... 15k. :barf:

[Mushasho!]

Jim, the 996tt calipers are bigger pistons and pad area when compared to the regular 996 units, but be aware that they require custom brackets not available from Apikol att the moment. I am a sneeze away from converting my front to b4 stuff, so maybe i'll make the right brackets for them. The benfit of the 996tt caliper is that they are dimensionally bigger than 996 calipers, and thus not as desireable for the regular market. I think I paid 450$ shipped for mine with lines, new pads and all the shim crap. The other cool part is that the 996 non turbo calipers were designed to go over 318(IIRC)x28mm rotors, where the 996 were designed to fit over larger 330x32mm rotors. 32mm puts you closer to 1.25" thick rotors which is more readily available for rings if you go to a two piece. The problem is that the larger calipers do pose fitment issues with the larger rotors in 17" wheels. I can get my fat fives on currently, but with the bad offset of the 1 piece upright, the enkeis don't fit without spacers. I am pretty sure they would with a 2 piece though.

Not sure if there's any similarity between this front end and the UrS,. but Apikol does indeed make a bracket for 996tt for the UrS...
here's a comparison pic of the Rs2 Adapter versus the 996tt Apikol bracket



the 996tt adapter was made to pair up with the S8 323x30 rotor on my uprights...

2 more things I'd like to add
I can't find anything that suggest that the 996tt piston size are any bigger than 993T/BigReds/BigBlacks which are 44mm/36mm.
The one thing that was noticeable when I had them on my hands is that the housings could definitely swallow a bigger rotor


The other thing is to keep your eye out for Audi S8 Brembos too,... As this is the combo I stumbled across that worked with RS2 adaptors & 323x30 S8 rotors... I later found that this same caliper was used on the optional 345mm rotor option on S8's too AND have even bigger piston sizes than the ones suggested/commonly used as upgrades.
This is my setup. The RS2 bracket is perfect on 323x30... perhaps a spaced out bracket can make the 345mm rotor possible with ease



So to recap, I think the S8 caliper can give you the most versatility...
Just some food for thought

OB

[Hank]

Sorry, I forget the 2 piece shares offset and bracket with the urs6. The urq does not ha e a bracket that works plug and play.

I am pretty sure the pistons are bigger on the 996tt. They make the regular 996 calipers look like rear brakes.

[Mushasho!]

the piston rebuild kits I found state 36/44... I know for sure the housing is bigger...

[Hank]

I think that info is wrong. Don't make me take a pad out! I Rememeber comparing thr two side by side I thought. Wouldn't be the first time I was wrong though

[SEStone]

996TT calipers are monoblocks as well, so lighter and stiffer than the 2-piece 993TT/928 GTS/S8 calipers.

Sam

[Mushasho!]

I think that info is wrong. Don't make me take a pad out! I Rememeber comparing thr two side by side I thought. Wouldn't be the first time I was wrong though

lol... either way I think the S8 caliper is a great choice given it's compatibility with RS2 bracket, it's bigger 40/44 piston sizes and it's ability to allow a 345mm rotor with a 18mm spacer (not that I'd recommend running a spacer in conjunction with the RS2 bracket over a 1 piece bracket that could easily be modeled using the RS2 bracket)... where's your pad now bud?

[123quattro]

I was under the impression that the ZR-1 and the Enzo have the same brakes

I believe the Enzo front is the ZR1 rear. I'll see if I can measure one at work tomorrow.

[40v4kq]

HEY JIM. FYI theres a brake discussion happening on your thread that I think you should be part of since its your thread. They almost have a whole page for you to read through.