S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

Brakes M/T Magazine !!!!!!

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Old Apr 23, 2001 | 06:47 PM
  #1  
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From: Ashtabula
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At Asheville I will display my big brake kit for S-2000 that fits stock wheels. The May issue of Motor Trend page 112 & 113 article DISC-O-TECH shows 7 different upgrade brake kits #1 lists the new kit I developed . If you read through the information supplied by each manufacture you will find that most kits are made with street versions of racing hardware to reduce costs. All calipers except Brake Man ( Forged billet) and Project Mu ( machined billet) are just cast aluminum, to reduce costs . Most of the rotors are cheap versions of racing rotors , with holes drilled in them or slots . The kit #1 is a racing kit that can be used on the street . Forged calipers , Forged hat and racing rotor . The F3 Tornado 4 piston caliper is super rigid ( less than .010 flex at 1000 psi.) . ,Very light weight ( just what is needed on S-2000 to reduce unsprung weight ) . This caliper holds standard size racing pads so selection of pads is fantastic. The two forged halves of the caliper are held together with 2 steel C-sections , this gives the caliper fantastic strength to resist flexing. The calipers that I have on my car increase clamping force by 33% over stock single piston caliper. The pads that I am using are good for rotor temperatures up to 1200 degrees. Go to Under-The -Hood section bring up posts on brakes , rotors , calipers you will find a lot of information about brakes. The F3 caliper also has a single point to bleed brake and single bolt to remove pad . Patented cross-over tube allows fluid to flow to outboard pistons quicker making brakes more responsive . Calipers are plated to reduce upkeep and maintenance. The standard kit will remove over 10 Lbs per front wheel. I will also have two piece rotors that will replace stock front rotors available in two to three weeks , ( Forged hats , directional cast iron plated rotors w/slots .) I am adding slots to Jazz up look. Once you replace your existing rotors you will only have to replace cast iron part if needed in future. I am working on rear light weight rotor , it should be available in 90 days . This kit is not imitation kit that most companies sell , the rotors and calipers that they sell for street kits use cheaper components , you do not get parts that go on racing cars only the name . This kit uses the same parts that race on Saturday and Sunday, parts that mean the difference between wining and losing . The highest quality parts and people behind the project that can get the most out of a braking system. The retail price of complete kit will be $2,600.00. After Asheville I will see if there is interest in a group buy ( min 5 kits ) I will also be looking for dealers interested in selling product.

Brad
6410
ps
See you in Asheville !!!!!!
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Old Apr 23, 2001 | 07:08 PM
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From: Sugar Land
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Brad,

I am most certain that this is a fantasic setup. I've read your posts and know that you've done a lot of work... but $2600 is a lot for just putting around on the streets. For a more simple kit I would pay $1300 for osmething I'll putt around the street in.. but not for $2600.

-Shing
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Old Apr 23, 2001 | 07:22 PM
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From: Ashtabula
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When we have group buy I want to make kit as affordable as possible . I think that members of this board have a passion for this car as I do and deserve to reap benefits of my sweat and pestering of a lot of companies. I wanted a set of brakes for my car and I could not find the quality that I wanted so decided to build them. The problem with most kits is the are built to price point not the highest quality that can be built . I looked at every way you could to build kit and found that most companies wanted to use parts that they had for other cars and were not wiling to optimize for our car . I feel that we have one of the best motors , transmissions , and chassis that you can buy . I wanted the brakes to be the same . Might be over kill but at least I know that no bean counter was looking over my shoulder.

Brad
6410
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Old Apr 23, 2001 | 07:39 PM
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Originally posted by dwb1
When we have group buy I want to make kit as affordable as possible . I think that members of this board have a passion for this car as I do and deserve to reap benefits of my sweat and pestering of a lot of companies. I wanted a set of brakes for my car and I could not find the quality that I wanted so decided to build them. The problem with most kits is the are built to price point not the highest quality that can be built . I looked at every way you could to build kit and found that most companies wanted to use parts that they had for other cars and were not wiling to optimize for our car . I feel that we have one of the best motors , transmissions , and chassis that you can buy . I wanted the brakes to be the same . Might be over kill but at least I know that no bean counter was looking over my shoulder.

Brad
6410
that's a good point. I'll be looking forward to the group buy pricing.

-Shing
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Old Apr 23, 2001 | 07:42 PM
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Hi dbw

I admire what you have done! I don't know that I will ever need brakes more powerful than those that came with the car, but I will certainly be watching your posts. I like the idea of reduced unsprung weight and improved braking performance. I respect what appears to be your uncompromising pursuit of excellence.

Question. Are the brakes or (tires and ABS) the limiting factors of braking performance in the S2000?

Looking forward to seeing some pictures of your setup.

2x6spds
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Old Apr 23, 2001 | 07:57 PM
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Brad, actually I have a question for ya... the rotors that you are using... I read previous posts and you mentioned you have light weight rotors that will be direct replacements? how much for a set? trying to save some weight...

-Shing
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Old Apr 24, 2001 | 07:32 AM
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Are the rear brakes vented? Have you track tested them for heat, fade and stopping distance as compared to stock?

I remember a while ago a magazine installed Brembo's and suffered longer stopping distances.
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Old Apr 24, 2001 | 06:37 PM
  #8  
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From: Ashtabula
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To answer your Questions :

You will notice the hat on other Rotors that are advertised, compromise performance to reduce cost.
Spoon: makes directional rotor but only makes one side, so on one side, the car has wrong set.

Other posts: Uses straight fins that are made like stock rotors that do not promote air movement through rotor.

Both items make rotors cheaper ( cost less) but not better. If you look up the properties of 7075-T6 aluminum you will find that its strength is not the same at all temperatures .
At 75F degrees 73,000 psi
At 212F 63,000
At 300F 31,000
At 400F 16,000

Hats get very hot under track conditions.
You will notice a post from Mike at Comptech he mentions bobbins, our kit uses the stainless steel bushing to mount rotor to hat , also all bolts are safety wired . Our hat is forged and not made out of 7075-T6 .

The ABS on car will still work with big brake kit because you have better control over petal pressure, ABS should come on less with new kit . Weight transfer , tire patch size , tread pattern and tire compound are big factors in stopping car . Better brakes allow you to better control braking function and give repeatability . Plus we take a lot of weight out.

With new kit I have increased piston size by 36% I still have the same petal height and movement . The reason that I could accomplish this is the caliper does not flex so master cylinder can use fluid to move pistons, not over come flex. The Brembo kit that comes on street cars is not the ones that are used all out racers . Problem with cast calipers is flex !!!!!!!!

Most of the parts are the same parts that Vipers use on the track under full race conditions . The rear rotors will be custom made STEEL solid rotors . Very light weight !!!! This same rotor has been used on rear of Vipers . The look is very trick , but the key is they work !!!!!!!! I added the slots to the kits rotors for that sexy look . with or with out the work just fine .
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Old Apr 24, 2001 | 07:08 PM
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From: Sugar Land
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[QUOTE]Originally posted by dwb1
[B]To answer your Questions :

You will notice the hat on other Rotors that are advertised, compromise performance to reduce cost.
Spoon: makes directional rotor but only makes one side, so on one side, the car has wrong set.

Other posts: Uses straight fins that are made like stock rotors that do not promote air movement through rotor.

Both items make rotors cheaper ( cost less) but not better. If you look up the
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Old Apr 24, 2001 | 07:19 PM
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From: Ashtabula
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If you replace stock front rotors with 2 piece system you will reduce unsprung weight . If you use directional rotors you will improve heat dissipation from rotor . Racing rotors should give longer life under hard use . Pads will make big difference on fade resistance and better feel. You will get that racer look !!!! I will have price of stock rotor kit after Asheville . We will use same parts that we use in kit rotor will just be different size . The rear kit will use stock rear caliper so rear kit could be sold separately. I also have group buy on Earl's brake lines and Solo-Bleeders at Group Buys . Earl's is making brake lines for kit . Thought I would pass on saving that I get from them because we are an OEM .

Ps
You can not fit larger rotor with stock calipers.


brad
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