does anyone know if the wilwood brake kit saves weight over stock? how heavy are the stock rotors? calipers? wilwoods? thanks!

 

I general yes. However the amount depends on which stock brakes (normal Gen I, JCW, Gen II) and which Wilwood kit (many different rotor diameters, rotor thicknesses, and caliper choices).

In the front, I went from a stock Gen I (2003 MCS) to a Wilwood/TCE 13"x0.81" rotor with FSL 4 Piston Caliper. My weight measurements were 19.4 lbs stock and 19.4 lbs for the Wilwood/TCE kit, so about the same weight. If you go with a smaller rotor you will probably save weight.

In the rear, I went from a stock Gen I (2003 MCS) to a Wilwood/TCE 11"x0.375" rotor using a caliper relocation bracket and the stock caliper. My weight measurements were 7.0 lbs stock and 8.4 lbs for the Wilwood kit, so a 1.4 lb gain.

 

Really?? Hmmm, I remember a big weight savings in the front, but I could be wrong. Same as you have.

 

I too have the same BBK front and rear and recall it dropping weight, but I must admit I didn't put everything on a scale, so I won't hold to my impression.
Very interesting.
They look cool...

 

I too thought I had a weight reduction in the front but I went back and looked at the numbers I saved in a document file, I had noted 19.4 and 19.4. Maybe I entered the numbers wrong. However, in some ways it makes sense if you consider all the pieces. I think you save weight on the rotor/hat, are about the same on the caliper, gain some on pads, gain on the new bracket, and gain on the extra bolts.

 

Yes, the hat and rotors (despite the increase in size) certainly weigh less than the stock units. The caliper is huge but made of lighter material, the pads are bigger and there's that bracket. Do SS lines weigh more than rubber ones--maybe.
In the end, I don't think it's so much about the weight, as the performance on a track day. In daily driving in winter I often see lower performance if the pads are not up to temperature...

 

damn... I need the rear wilwood brakes to match my front... I know my stopping performance is compromised but i do know that it DOES slow the car down alot faster than my gen 1 mini cooper S brakes... its just when I try to brake extra hard there is no difference it just evokes ABS because the bias between front and rear is compromised... What do you guys think? I was considering just getting better rear pads(I have oem), slotted rear rotors and caliper stiffening bushings or should I get the kit? I am looking to track my vehicle... or do you think the rear wilwood will be night and day difference?
All I know about my wilwood kit is i opted to get the best kit they have... but i shouldnt have gotten cross-drilled and slotted, just slotted... cross drilling actually compromises heat disapation, ad can cause the rotor to crack easier under extrememe conditions

 

I never had the BBK front without the larger rear rotor so I can not comment on the difference in front/rear balance. It just seemed to make sense to me to add the larger rear rotor to gain a little more torque on the rotor and to be able to dissipate a little more heat in the larger rotor. I have seen posts from people who are actually generating a lot of heat in the stock rear brakes when using a BBK on the front.

 

If you want to loose weight you need to go with these. They save 2lb's over a round disc. They are Wilwood and will fit the TCE 13 and 12 front as well as Todd's rear kit. Not so much for the track guy but for the street and canyon guy they would be great.

I just think they are way cool.

 

how much we talking about for those rotors longboard?

 

This kit if from http://www.thebrakeman.com/
http://thebrakeman.com/revolution
"The 12.19 rotor weighs 4.4 pounds, and a 13" ProCast weighs 12.2 pounds. Our convoluted 13" ProCast rotors are also available if you want the look of the Revolution with the better sound-dampening of a cast rotor, they weigh 11 pounds each. The hat itself weighs 1.2 pounds."..... a front + rear kit is a bit over $3,000
the one on the left is the convoluted cast rotor and right is the storm kit's revolution rotor...

please note: I copied most of this info, but I may have messed up somewhere.
also note:"Lightweight rotors are a great idea if they will work for your style of driving and on the tracks you normally race at, however, don't try to use them where they don't belong. Tracks like Martinsville, Gafney, Hagerstown, Walkins Glen and others, were never meant for lightweight rotors. These tracks seriously test brakes and require large rotors to supply the brake system with sufficient resources to remove the heat being generated!"
If I had the $$$$ I definitely wouldn't mind a 4.4lb., 12.19" rotor

 

I have the 11.75" kit on my `05S, and the total weight was 2 lbs. less than OEM. Not a lot of difference, but these are much better brakes than stock, and fit my 15" and 16" wheels (SSR Comps).

 

I talked to the Brakeman over a year ago. They make great stuff but like you found out they are $$$. They also make noise. Not sure why but they tell you in advance . The rotors look very cool though.

The Wilwood scalloped rotors aren't drilled and have a little more meat on them then the Brakeman's.

Longboard