Bargain Basement Big Brakes

[Jon Lane]

Good idea, Gary. My shop tells me that in 100 pc quantity, I can get these cheap enough to mail em out in pairs for $50. I don't really need such a project but if that's less than water cutting 'em, it's an option I'd consider doing once.

Just wanted to add that perspective to anyone thinking about doing a one-time gratis project for DSM'ers like this.

 

[wret]

If you guys want I could water jet tons of those brake adapters for ya....
I write ALOT of water jet programs and there is a ton of water jet parts on my rally
car... Navigator foot rest, Handbrake, Sturt reinforment plates, Control arm reinforment
plates, Gauge councel, master cylinder mount plate... and on and on.... O2 jet is cheap and fast and can hold a TOL of +- .0005

I will only make them IF you guys make more that a couple as I have to drive around and
get material and all that jazz... Oh and if the gentleman that made the file would like a cut I would be more than happy to give it to him... I know I dont like when people take MY design and trty and make money on them...

Regard
Larry Parker

Awe, man. What I could do with a machine like that in my garage.

 

[Jon Lane]

We're playing with some other parts over here...

I'm hoping to have Wilwood FSL calipers on the car by the end of the month.

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[Jon Lane]

Can anyone tell me what sort of fasteners they used to bolt up their caliper brackets? It's been awhile since I was under the car and I would like to have some parts on hand when I take it apart again...

 

[Todd TCE]

We're playing with some other parts over here...

I'm hoping to have Wilwood FSL calipers on the car by the end of the month.

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Let me know if you wish to make some parts purchases.
I'm happy to sell you calipers and pads if that's all you want.
Making the brackets for this AEM/FSL package would be a no brainer, but if you have it handled that's fine.

 

[Omega]

Hey wret,

The S8 rotors you looked into; did you uncover the offset, lug pattern and bore dia by any chance?

 

[wret]

Yeah, one of them is a kitchen stool right now. 5 x 112 pcd. Centerbore is tight but fits on 2g hubs. I believe the offset is 58mm or something like that.

 

[Jon Lane]

Does anyone know if 2G rear caliper perches dimension the same as the fronts? I'm still looking for bolt sizes for these places too...

 

[suicidal2af]

I've seen pictures of the calipers shaved though I have no idea how much is safe.

It's been a while since I looked at the clearances but during the early part of this thread I was convinced that the Audi S8 Brembo rotors with a height of 52mm would fit. The A8 rotors, with a height of 59mm hit the ABS sensor, though not by much. The S8 rotors do not have much of an offset advantage (wheel clearance) over the A6 rotors that I am using due to the greater thickness at the disc.

Ron,

I'm getting ready to attempt this conversion. Couple of questions, though.

1) Would you see there being any problem with A8 or S8 rotors on a car without ABS?
2) Would your friend make me some brackets for two pizzas?
3) Was rotor pricing the main reason for your choice of A6 over S8 rotors? I've got a source for S8 rotors @ 79.99 each.

 

[wret]

Sorry, I was on vacation.

1. The S8 rotors should not be a problem either way. The A8's might be okay without the ABS sensor. There were some slight clearance issues with the rough/square edges of the knuckle that I was smoothing out but gave up when I hit the sensor.
2. He just might.
3. No. I didn't find the specs for the S8 rotors until after I had bought A8 rotors (and damaged one) and A6 rotors, which I am now using.

 

[94awdcoupe]

Ive been looking everywhere to find a set of adapter plates to put the vr4 brakes on my 95 gst,this is the closest ive got.I will be willing to buy brackets if it worked out,let me know as soon as the conversion is perfected (hopefully soon).I definetly found this post to be very helpful and informative,thanks guys

 

[Jon Lane]

Something like this?

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[Verticaljump1]

I have a few questions...

1.) Will the Audi S8 rotors fit a 1g hub, and if so will the offset require spacers.
2.) Any idea on the bracket specs if they will fit.
3.) If I went with the 1G 3/S calipers and the 13.1" cobra rotors, and spaced everything 15mm would 17x8 45 e/t wheels w/ 245-45's work?

This thread is awesome...

 

[wret]

1.) Will the Audi S8 rotors fit a 1g hub, and if so will the offset require spacers.

I haven't examined 1g hubs but I can't imagine that they would not be similar to 2g's. When you say "fit" you need to consider that the hubs need to have material removed from them to reduce the diameter a few millimeters to fit the Audi rotors. Wheel clearance depends somewhat on the design and shape of the wheel. Some lower priced wheels are produced in higher offsets simply by removing excess material from the hub mounting surface. Others may have differently shaped spokes. My wheels fit with about 1mm clearance. Some wheels would require spacers.

2.) Any idea on the bracket specs if they will fit.

Wortdog posted a drawing of a 1g bracket on the 1st page of this thread.

3.) If I went with the 1G 3/S calipers and the 13.1" cobra rotors, and spaced everything 15mm would 17x8 45 e/t wheels w/ 245-45's work?

The offset of the cobra rotors places them about 10mm further out than the A6 rotors. No one can say for sure which wheel would fit without trying it but with a 15mm spacer you would have a pretty good shot.

 

[Omega]

The coba rotor has a bore of 2.73"... call it 71mm. There is an "S6" rotor with a dia of 321mm (12.6") that might bing the caliper in enough to clear depending on the interference. I can't tell you much about the S6 rotor other than the thickness.

Cobra calipers are pretty compact so you might get away with it with the S6 rotor... assuming the bore works out.

 

[slider6000]

soo... what do you need to make the s8 brake setup work?

 

[wret]

-Adaptor plates
-Rotors
-1g VR4/TT Calipers with pads and lines

-Hardware:
4 M12 50mm high strength bolts
4 M12 40mm serrated flange head bolts
8 M12 nuts
4 M12 flange nuts
Lock washers
0.5" ID 1" OD spacer washers

edit: pad shims are needed for A6 rotors.

 

[slider6000]

thanks wret!

 

[wret]

I should add one more thing to the list: If you use rotors like the A6's, that are less than the 30mm thickness that the calipers were designed for, you will need to shim the pads to make up the difference. This will prevent over-extension of the pistons and seals, which could result in leaks or failure.

 

[suicidal2af]

I should add one more thing to the list: If you use rotors like the A6's, that are less than the 30mm thickness that the calipers were designed for, you will need to shim the pads to make up the difference. This will prevent over-extension of the pistons and seals, which could result in leaks or failure.

Slightly off-topic, but would you mind if I swing by sometime and pop one of my wheels on your car? Before I invest in the calipers, it'd be a pretty good idea to test fit everything first!

More on-topic, there are 2 brake setups available to S8's. One with Lucas calipers which have a 323mm rotor, and one with Brembo calipers which use a 345mm rotor. I'm fairly confident that the 323mm rotor would fit in 17's easily enough, but do you think that the 345mm would work?

 

[JOEY A]

Ok what do I need to make a very simple 1G street setup?! I keep reading all these rotors off sets blah blah blah. Im confused, im running 17inch rims. I dont need anything fancy, just something affordable or better.


I have a machine shop that will make me the brackets but I need some kinda of lay our or specs etc.

What rotors do I need? Im confused, Keep it simple!

 

[wret]

2g 3000GT VR-4 rotors are a direct fit but they place the calipers so far out that you need spacers to fit your wheels over them. The Audi rotors mitigate this clearance issue but they are not a direct fit--you need to reduce the hub size to make them fit.

The dimensions of the brackets in the first couple pages of this thread are as clear as I can make them.

 

[TrboANTsi]

Ok so i spoke to jon lane and he has the brackets for 85 which are for 13 inch rotors. Which rotors come closest to fitting without me having to grind and hack away mind you im not the handiest guy when it comes to measurement, but i do have the nerve to try it. Also would that still clear 18 inch rims? Or would it be better off askign TCE to just make me some rotors. I just started recently reading this thread and all the mm and stuff are making me nuts and there were so many adjustments i dont know what measurments supercede what. Ughh thanks guys hope someone can help without getting annoyed

 

[wtalon91]

Can somebody tell me where i can get the brackets made for a 1g i have 1g vr4 calipers and i want to put them on. I will hope somebody will have a answer for this

 

[kronus]

Get the templates off of the first few pages of this thread. Then find someone you know who has access to metal fabrication equipment.