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Old 07-15-2004, 03:19 PM   #1
cooleyjb
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Default Stoptech and other BBK weights

Just curious if anyone knows off hand the weights of the major BBK upgrades and if that is heavier or lighter than stock.

Thanks in advance

joe
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Old 07-15-2004, 07:14 PM   #2
projectrally
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Actually, I was just reading an article last night on www.caranddriver.com. It was an old article where they tested 4 different BBKs on an 02 WRX. Do a search for brake kit...I think the article was titled something like "shedding light on brake fade."

Anyway, they reviewed 4 BBKs: 2 brembos, the stoptech kit, and the prodrive kit. The prodrive kit was the only one of four that weighed more than stock brakes. The stoptech and brembo kits weighed less than stock. It didn't give actual weights, though.
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Old 07-15-2004, 07:16 PM   #3
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The print version of the article did give weights. I'll post the numbers if no one else gets to it first.
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Old 07-15-2004, 09:59 PM   #4
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Brembo F50 rotor weight: 15.8 caliper weight:8.6
Brembo Lotus rotor weight: 12.9 caliper weight 6.8
Prodrive rotor weight: 16.5 caliper weight: 9.1
Stoptech rotor weight: 13.9 caliper weight: 9.3
Stock rotor weight: 14.2 caliper weight: 9.3

All weights are in pounds. I'm not sure if the caliper weights include pads or not
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Old 07-15-2004, 10:01 PM   #5
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Thanks a lot for the info.

As good as I could have hoped for

Joe
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Old 07-19-2004, 11:20 PM   #6
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yeah, killer info.
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Old 07-20-2004, 02:09 PM   #7
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Wilwood front 12.9" rotor is about 0.5 lbs lighter then stock.
The Wilwood 6 pot front caliper is significantly ligher then stock, probably 50%. I forgot to weight the calipers for some reason when I was putting them on the car.

-Tom
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Old 01-23-2005, 02:14 AM   #8
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Interesting Thread

I just thought I would post:

Stoptech 332x32mm rotor weight: 19lb
(These rotors are monsters, I assume the lighter Stoptech rotor weights are from the smaller "standard" 328x28mm rotors)

Wilwood SL-6 caliper weight: <7lb - aprox
(I never weighed them either, but they are light as a feather, significantly lighter than even the Stoptech ST-40)

Last edited by Lunarx; 01-23-2005 at 10:16 AM.
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Old 01-23-2005, 03:15 AM   #9
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Oooo, good info here! Lets see if anyone else can come up with weights for other rotors and calipers, also if someone could weigh some of the more common pads, that would be sweet.
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Old 01-23-2005, 03:46 AM   #10
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Quote:
Originally Posted by driggity
Brembo F50 rotor weight: 15.8 caliper weight:8.6
Brembo Lotus rotor weight: 12.9 caliper weight 6.8
Prodrive rotor weight: 16.5 caliper weight: 9.1
Stoptech rotor weight: 13.9 caliper weight: 9.3
Stock rotor weight: 14.2 caliper weight: 9.3

All weights are in pounds. I'm not sure if the caliper weights include pads or not

Actually I weighed mine when I installed them on a very accurate scale.
I posted the info a long time ago.

stock 02 WRX
rotor 14lbs 6 oz
caliper 13lbs 12 oz (without pads)

Stoptech
rotor 13lbs
caliper 7lbs 11 oz (without pads if I remember correctly) (I don't know if stoptech changed their design recently)
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Old 12-13-2007, 10:28 AM   #11
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old thread, but does anyone have the weights on the AP 4 pot it?

also the Brembo Lotus caliers refered to in that article are the "normal" Brembo BBK Gran Turismo, the F50 the bigger kit? Are the oe "gold" STi Brembos Lotus or F50 calipers?

TIA
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Old 12-13-2007, 12:12 PM   #12
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Shipping weight of the factory Wilwood 13" kit runs about 48lbs.

Shipping weight of the Wilwood LBK kit runs about 36lbs.

Shipping weight of the TCE/Wilwood 14" W4a kit however runs about 66lbs.


*These number represent estimated shipping weight of the entire front brake kit. The final weight can be effected by the rotor finish- drilled being lighter of course and upon the pad compound selected as track pads are much heavier than street compounds.

Last edited by TCE; 12-13-2007 at 02:33 PM.
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Old 12-13-2007, 01:48 PM   #13
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Quote:
Originally Posted by BIGSKYWRX View Post
old thread, but does anyone have the weights on the AP 4 pot it?

also the Brembo Lotus caliers refered to in that article are the "normal" Brembo BBK Gran Turismo, the F50 the bigger kit? Are the oe "gold" STi Brembos Lotus or F50 calipers?

TIA
Weights on the AP 4-Pot kit from Stillen is largely affected by the rotor choice.

The Genuine AP Slotted Rotors are superlight.
The DBA Drilled Rotors are super heavy.
(Result of plate thicknesses)

The AP kit with the Genuine AP rotors is possibly the lightest kit available.
I had that kit but do not know the weight.

I also had Stoptech 332mm and Willwood.

If you get the AP kit talk to Chris Bernal (Stillen) about having the calipers machined for clearance.
Hub flex on our cars causes a problem with the tight fitting AP calipers.

Another big bonus of the tight fitting AP calipers is that I bet they would fit with just about any 17" wheel.
They have lots of wheel clearance.
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Old 12-13-2007, 02:24 PM   #14
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Old 12-13-2007, 03:19 PM   #15
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Thanks gents. Interesting on the rotor choices for the AP's- they don't spell that out w/ the kits, they show rotor choices (drilled/slotted) but don't disginuish the different manufacturers.
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Old 12-14-2007, 12:33 AM   #16
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Quote:
Originally Posted by BIGSKYWRX View Post
Thanks gents. Interesting on the rotor choices for the AP's- they don't spell that out w/ the kits, they show rotor choices (drilled/slotted) but don't disginuish the different manufacturers.
The other advantage of the AP rotors option is that they should come with Aerospace Grade shoulderd bolts.

The DBA drilled rotors come with cheap non shoulderd bolts and therefore the threads catch on the hats.

Definetly get the AP Slotted Rotors, as I found they last longer (without cracking) despite weighing much less.
It's a win-win except for cost.

If you get the DBA rotors, at least request the upgraded hardware.
You will hate how heavy they [DBA] are though.

The AP kit combined with good pads (not Mintex Extreme) is a great combo.
Try to buy the kit w/o pads (for slightly cheaper) and get your own favorite compound.
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Old 12-14-2007, 09:31 AM   #17
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I visited w/ Chris yesterday- the AP rotor replacements were a little spendy (the dollar against the pound isn't pretty) , but as you said definitely lighter.
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Old 12-15-2007, 02:01 AM   #18
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Quote:
Originally Posted by BIGSKYWRX View Post
I visited w/ Chris yesterday- the AP rotor replacements were a little spendy (the dollar against the pound isn't pretty) , but as you said definitely lighter.
So you are in SoCal, Cool!
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Old 12-15-2007, 11:32 AM   #19
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Sometimes I very much wish so


"visit"- as on the tele
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