StopTech 4P Front & Rear BBK Install
 

Today was the beginning of a healthy list of installs on my Z.
This includes a StopTech BBK with a Stillen Front Brake Cooling Kit.

http://www.the370z.com/members/vabam...optech-bkk.jpg

I chose the 4 Piston Calipers Front kit and 4 Piston Caliper Rear kit both with 14 inch slotted rotors.
I didn't see the need to go 6P on the front; 4P is more than enough.
Also I plan on getting 18 inch rims for the track so the 15 inch rotors were out.

http://www.the370z.com/members/vabam...front-left.jpg

Front Left caliper and rotor.

http://www.the370z.com/members/vabam...ht-caliper.jpg

4P Front and Rear Piston comparison. Front Left (left caliper) Rear Right (right caliper)

http://www.the370z.com/members/vabam...ht-caliper.jpg

4P Front and Rear size comparison. Front Left (left caliper) Rear Right (right caliper)

Today the original front brakes were taking off and the Stillen Font brake cooling kit was installed.

http://www.the370z.com/members/vabam...ke-cooling.jpg

http://www.the370z.com/members/vabam...ke-cooling.jpg

Tomorrow the install continues with the front brakes. :happydance:

More to follow!

im a jealous of that bbk

nice looking brakes man! Im looking to do the same to mine. Hows the weight difference from stock to those?

Very very nice!

nice!

Well, the front rotors feel like they are about half of the stock front sport package rotors.
I'll try to weigh the rotors and calipers before they are put on.

Dam those are cool

why did you buy those stoptechs if you already had 4 pot akebonos?

There's more to a caliper than pot count. I remember reading a comparison on the akebono calipers a while back that listed the features that it didn't have or differed compared to something from brembo or AP racing. Can't remember exactly what it was for the life of me, or find the thread again.
Our akebono kit seems to be heaver than just about every other BBK though.

Update
 

The install is complete.
However we couldn't bed them today due to the weather.
Pics and details to follow including weights and piston sizes, stock vs StopTech.

Because...



:bowrofl:Sorry couldn't resist.
I've got some good points but, that will come later.

Its been a long day.
Need to eat, recharge the batteries a little.
Post a write up later.

Nice!!!

because if you are coming downhill into turn 10a at Road Atlanta at 150mph and brake at the 250 foot mark, you want to know that the car is going to slow down, consitently, every time.

Update
 

Pics first! :tup:

http://www.the370z.com/members/vabam...inc-plated.jpg

Front Left

http://www.the370z.com/members/vabam...nded-studs.jpg

Rear Right with Z1 10mm spacer and extended studs.

http://www.the370z.com/members/vabam...r-19-vr-g2.jpg

Front Right with my Volk Racing Type II G2s rocking new Yokohama ADVAN Neova AD08s.

http://www.the370z.com/members/vabam...r-19-vr-g2.jpg

Rear Right

http://www.the370z.com/members/vabam...optech-bbk.jpg


Now for some numbers.


Weight

Please keep in mind that my OEM rotors have around 17K of use which includes more than a few track and autocross days.
Also they have been resurfaced once.

(Edit: all weights are individual weights so X2 for total savings)

OEM SP Front Calipers 11.6 lbs
Stoptech Front Calipers 8 lbs

OEM SP Front Rotors 30 lbs
StopTech Front Rotors 18.8 lbs

OEM SP Rear Calipers 7.4 lbs
StopTech Rear Calipers 5.9 lbs

OEM SP Rear Rotors 20 lbs
StopTech Rear Rotors 20.5 lbs

Why the StopTech Rear Rotors weigh more than the OEM.

http://www.the370z.com/members/vabam...rear-rotor.jpg

Also the hat on the StopTech rear rotor has more metal for the parking brake that's why the rear weighs more than the front.


Calipers Piston Sizes

OEM SP Front 38mm 40mm
StopTech Front 40mm 44mm

OEM SP Rear 37mm
StopTech Rear 28mm 30mm


The StopTech calipers will flex less and be more consistent.
Also the StopTech calipers are lighter and have bigger pistons.


While my StopTech BBK was being installed also installed MotorDyne ARTs and M370.

http://www.the370z.com/members/vabam...ordyne-art.jpg

http://www.the370z.com/members/vabam...e-manifold.jpg

I'll be at ZDayZ this year if any of you want to check out my setup.

Enjoy!:tup:

Very nice.

The weight drop is dramatic. :eek: Nice!.

You could have just replaced the front rotors with an aftermarket light weight rotor. Those stoptech calipers aren't any more sturdy than akebonos since they arent an actual race caliper. For the $$$ I wouldnt have recommended this at all. Maybe if you stayed 4 pot but went with an AP racing caliper that is truely a lot more lighter weight and better built. But the specific brake kit you bought isnt going to gain you ANY performance difference than stock akebonos. You dropped what 3.5 lbs for $3,000? Also your piston size only went up a couple mm, also in no way going to show an improvement on the track at all. You would have seen MUCH better performance improvements while spending a lot less money by simply swapping rotors with a 2 piece DBA rotor, some aftermarket track pads, and high temp brake fluid, ss brake lines, and some brake cooling ducts.

Just my .2 but if you already had sports package brakes, this specific brake kit you bought is total waist of money and a little RICE if its just "#becausestoptech"

Sorry, couldn't resist...

Because...

http://i873.photobucket.com/albums/a...psad4d9f3c.jpg

Reaper,
When you posted that kit, I meant to warn you, with the 15" rotors and just a couple mm clearance between the caliper and the wheel, little rocks and crap are going to get stuck up in between them and make awful noises and scrape up the rim and caliper. I used to get black flagged for noise when I had similar clearance with the brembos I used to run.

3.5 lbs? Try 29.6 lbs for less than $3000.

Have you seen the piston sizes on the 6P kits?
The same can be said about the 6P kits.


Just for fun.:icon17:
The following is just a piston surface area comparison only.
I know there are a lot more factors that determine actual front to rear balance like rotor size.
(Surface area numbers below are just one side of the caliper.)
Hopefully my math is right.:icon14:

StopTech BBK
4 Piston front 14" (355x32mm) rotor
40-44
2777.1 mm2
68% front
32% rear

6 piston front 15" (380x32mm) rotor
rotor
30-34-36
2632.5 mm2
67% front
33% rear

6 piston front 14" (355x32mm) rotor
34-34-36
2833.6mm2
68% front
32% rear

4 piston rear 14" (355x32mm)
28-30
1322.5mm2


OEM SP
4 piston front 14" rotor
38-40
2390.7mm2
68.9% front
31.1% rear

2 piston rear 13.8" rotor
37
1075.2mm2

:stirthepot:

Looks good man! Weight drop is really decent too!

Any pics with the OEM 18's ?

Nope. Sorry, the only other rims I have are the OEM 19's.

Ever try 18's with the StopTechs ?

No, unless you count the spare tire. :eekdance:
StopTech says 18's will clear the 14" rotor kit.

I think Mike has experience running 18's with StopTechs.