I was unable to post this in the classifieds section, so i posted it here, if a mod would be kind enough to move it (and delete this sentence)

The kit came in priced a little higher than expected, but we are getting 14" rotors!!, however i dont think the stock 17"s will clear the brakes. (sorry enthus / base model guys). - if there is enough interest perhaps we can go back to Virgil and get a 13" kit developed as well.

The Front Kit will be a 355mm (14") x 31.75mm (1.25") 2 piece plain or slotter rotor with Wilwood Superlite 4 piston calipers,
Polymatrix 'D' brake pads, caliper mounting brackets, stainless steel flexible braided hoses, mounting hardware and instructions.

$1499.00 (compared to the $2,595.00 for stoptechs)

The Rear Kit will use a 2 piece 355mm (14") x 29.97mm (1.18") plain or slotted rotor with an internal drum parking brake, either a Wilwood Forged Dynalite 4 piston - or - Wilwood Superlite 4 piston caliper (designer's call), Polymatrix 'D' brake pads, caliper mounting brackets, stainless steel flexible braided hoses, mounting hardware and instructions.

$1599.00.

If you get a front + rear kit

4 piston front with rear $2633.00...(equal to 15% off).
6 piston front with rear $3058.00...(equal to 15% off).

(compared to $4995.00 stoptech)

Options:

6 piston calipers ..... :+$500.00
(for the front)
Hawk HPS or HP+ .... :+$30.00
Ferodo DS2500 ....... :+$55.00

Cross Drilled Rotors .. :+$100 (per kit)

Powder Coating ..... :+$50 (face only)
(4 piston caliper) ... :+$80 (entire caliper)

(6 piston caliper) .... :+$60 (face only)
............................ :+$100 (entire caliper)

For the Group Buy
10+ people .... 10% discount
15+ people .... 15% discount

*The "Addons" do not recieve the Group Buy Discount.

*Group buys are calculated for front kits only. The 15% off
noted above for a combination kit takes this into account, and gives an additional 5% off the total with the addition of the
rear kit.

 

Who makes these brakes? How well were they tested with the Z, or were they just choosen at random?

I realize the Stoptechs are mad expensive (cheap compard to Brembo) but at least you know you will be getting better performance.

They are great prices though. What colors.

 

the brake components will be from wilwood products except for the brackets which are made by www.precisionbrakes.com

virgil didnt specify any colors, so im assuming every basic color would be avaible red/blue/silver/black/yellow... etc, i will get specifics on that though.

there are no performance numbers yet, jak and i are trying to get something to show you guys, i know how everybody likes to see numbers . everything that ive read about wilwood products, have been great reviews ... thier products are top notch ... every bit as good as stoptech or brembo at a fraction of the price!

Also, i misposted the price on the 6pistion front set... it's actually a "different" kit at 1999.00, so you will get the gb discount for that.

 

This is upsetting because I want 13" fronts and not the 14s. 14" fronts make the rears work much harder and heat up faster and to higher temps then the 13s. Check out the data at the bottom of this page with StopTech results. The 14s caused the temps of the rear rotors to run EVEN HOTTER than with STOCK fronts.

Regardless, I won't put a dime into a brake upgrade until I see quantified data.

 

As promissed here are the specs on the brake kit:

Stock vs Brembo Upgrade:
Front Brembo brakes = +13.4% braking increase over stock brakes
Rear Brembo brakes = -1% braking decrease over stock brakes
Front to rear braking bias = +14.4% more front braking bias with Brembo upgrade vs stock brakes.

Stock vs Precision Big Brake Kit:
Front brakes = +45% increase over stock and +31.6% increase over Brembo.
Rear brakes = +35% to +45%, fully adjustable, increase over stock and +36% to +46% increase over Brembo.
Front to rear braking bias = adjustable range that equals the stock bias to 4.4% more rear braking bias than Brembo.

Piston and Rotor Area:
The overall piston area in the front increases from 3.98 sq. in. to 4.81 sq. in., and the rear from 2.24 sq. in. to 2.99 sq. in. over stock.
The rotors increase from 11.65 x 0.945 in the front to 14 x 1.25, and from 11.50 x 0.63 in the rear to 14 x 1.18.

Powder Coating Colors:
Any color is available. Most basic colors are available at the cost listed above. Special colors may be an increase in cost and will be taken on case by case basis.

Estimated Shipping Time:
Allow around 6 weeks for delivery.

Moraccan_mole asked a question about the powder coating costs and why the 4 piston calipers cost $10.00 more to powder coat than the 6 piston calipers. The reason I was given was due to the labor invoved assembling and unassembling the four piston caliper vs the 6 piston caliper. Apparently the 6 piston caliper is more straight forward.

Jeff

 

Thanks for posting that info. I do think however, that you need to run some braking tests the way StopTech has, and post those. A comparo between your product, StopTech's, the Brembo's, and the stock Z brakes would be appropriate. How did you come up with the improvement numbers? Were they a mathematical calculation based upon swept area? That's an important calculation but real world braking tests are what counts.

 

thanks jak.

i typoed the pricing on the powdercoating prices and reversed the 4 and 6 piston pricing, if a mod could fix that for me please.

the 4 piston should be $60/$100
and the 6 piston should be $50/$80

 

(hrm) Very tempting. What's the time frame for this?

(My wife just spent 4k for getting A/C installed in the house, and it'd be a month or two to get the money up for the kit.)

 

I think it is going to depend on how much interest there is in the brake kits and how soon we can get 10+ people for the group pricing. Moroccan_ mole may have a specific amount of time that he is allowing for people to get their orders in.

I will let him answer.

Jeff

 

once we get the minumum of 10 orders in ... i will give it 2 weeks for anybody else to get thier orders in as well.

you will need to secure your spot with some form of payment (ie. credit card). the cards will not be billed until the kit is ready to ship (probably about 6 weeks from when the group buy closes).

however, at this point it doesnt look good... people are not willing to commit to a brake kit that doesnt have a nice little spread sheet with temperatures and stopping distance after hard stops from 60, 80 and 100 mph.

 

<<<<however, at this point it doesnt look good... people are not willing to commit to a brake kit that doesnt have a nice little spread sheet with temperatures and stopping distance after hard stops from 60, 80 and 100 mph.>>>>>

Exactly. Then why not run those tests, post the results, and watch the orders fly in? ?

 

it's sort of hard to do that since the kits have not been manufactured yet.

 

Are you F**KING KIDDING?!?

What a way to run a group buy. "Hey, send in your money for a brake kit that has not even been EVALUATED on a 350Z much less is it even know if the the calipers will even function with your stock master cyclinder. But, who cares, right? It's a 14" kit and you can get red calipers. BLING BLING!"

What the f**k ever, dude.

 

you can use the stock master cylinder, if it was in the email i got, if i didnt post it, i mispasted it, sorry.

the bottom line is, wilwood products are quality products, this has been proven on s2000s, wrx, supras, etc ... and bigger/better hardware will increase stopping distance and reduce brake fade on the track, it's mathematical.

the only reason you're asking for your cute little spread sheet is because an indenpendant 3rd party tested out the stoptechs... i guess people werent buying stoptech brakes before zeckhausen published his brake test?

YEA DUDE WHAT THE F*CK EVER!

BLING BLING.

 

Moroccan_Mole, I'm not posting to rag on you. I know that Wilwood makes quality products. But the kit you describe is composed of differently sourced components. In the absence of real world testing, mathematical calculations may or may not be accurate. Real world testing, while not perfect either, at least shows us how the kit would perform on the street/track.

As for StopTech's, yes, their kits were selling well prior to the test I posted, but that's because there have been many testimonials by their users, who have them installed on their particular car.

If you want to make $$, why not invest in the R&D and testing, and then post the results. It's much more than a "cute little spread sheet". And it would help sell many more kits and result in more profit, and the cost of the original kit.

 

i have nothing to do with wilwood or precision braking.

the components would all be wilwood components ... the only thing that precisionbrakes would be making is the brackets, and choosing which wilwood components would be used.

i saw lots of people wanting to upgrade thier brakes, but not wanting to pay the price for stoptechs or brembos. when krinkov posted a link for precisionbrakes.com i was reading over thier site and saw that they offered group buys, i emailed the owners there and just sorta ran with it.

the only thing im getting out of this is helping other z owners upgrade thier brakes for less money.

 

WRONG, DUDE! Zeckhausen did the WRITE UP on the tests, StopTech did the actual fitment and testing. Did you even read the goddamned article? They brought MULTIPLE calipers out to the test site with different size pistons in order to figure out which one works best. SCC magazine tested the StopTechs long before StopTech themselves actually got around to it, and they DID NOT get it right. SCC actually increased the braking distance because the CALIPERS were not properly matched to the master cylinder!

Is Precision going to support a testing effort? Is Wilwood?

Do whatever you want. I hope most members here are not stupid enough to buy into a brake upgrade in which hard facts as to actual performance have not been presented.

 

You seem very upset about a brake kit you aren't buying. Why are you getting down on people who want to do something to help get more product choices for our car?

What have you developed so far? Are you trying to tell everyone that a 2 piston caliper on a 11.65" rotor is better than a 4 piston caliper on a 14" rotor? Come on. Be honest.

Numbers and tests are all well and good but it doesn't take a genius to see that a 4 piston system is better than 2 piston stock!

Buy what you want but I can gaurantee you this, it may or may not beat the Stoptech's but they are going to be better than stock and a whole lot less money. This seems to make the point of numbers pointless unless there was competative brake system in this price range which Stoptech's are not.

Jeff

 

droidekaus,

I tell you what you shell out your $5000.00 grand for a 4 wheel Stoptech system and I will put up the $2600.00 for this 4 wheel system.

Lets get together and really find out how much more you got for the extra $2400.00. I bet not $2400.00 worth if anything.

You up for it? I got the cash lets do it.

Jeff

 

You really don't get it, do you? You actually think that mathematical equations based on surface area mean that brakes are going to do their job without even knowing how the caliper and said caliper's piston groups are going to interact with the master cylinder?

I WOULD LIKE to buy a Wilwood kit and save substantial cash over a StopTech system, but NOT until I see proof via quantified data that the kit will hold up to rigors of what I intend to do to it. I have a track event next week and WILL need to buy new rotors after I come home. I want a kit to perform on the track and don't give a **** what it looks like or if I can powder-coat my calipers.

I've already been approached to fit a 4-wheel Wilwood kit on my car and offered the opportunity to purchase at cost. The "testing" that was offered in this deal was to slap on 13.6" rotors front and rear with 6-piston calipers and see if it works. No mention was made of trying different calipers/rotors to determine the best match and I was speaking directly to the individual who wanted to do the fitment. Do you see where I'm coming from? This "group buy" has disaster written all over it if proper testing is not done!

Tell you what, if Wilwood can deliver a product to market that has been fully tested and approved for the 350Z application and was only marginally cheaper than the comparable StopTech application, I would definitely consider it, but I need data!