AP stillen braking upgrade road testing


Black 907

GT Owner
Mark IV Lifetime
Nov 9, 2006
78
For the people lucky enough to have the Stillen kit installed for their R&D.... please check in with specs and impressions..thinking of the upgrade for aggresive street driving and would like some input Thanks
 
Aug 25, 2006
4,436
I integrated the AP Racing systems on Ed's gal a several hundred miles ago however he is still a few weeks away from his first track event with them.

I expect that he will share his thougts.

Takes care

Shadowman
 

Ed Sims

GT Owner
Mark IV Lifetime
Apr 7, 2006
7,931
NorCal
road test

I've only put some easy road miles on the brakes so far but on Saturday I'll be doing some serious mountain twisty road testing near Tahoe & give my report. In less than 3 weeks I'll be at Sears Point for the track test.

Ed

PS The brakes definitely pass the eye candy test as more than a few people have had their eyes pop out when they saw how big the brakes look. They use every millimeter of space in the OEM wheels. Very cool even standing still!
 

mousecatcher

GT Owner
Jun 26, 2007
200
San Mateo, CA
pics!
 

STORMCAT

GT
Mark IV Lifetime
Le Mans 2010 Supporter
May 25, 2006
7,582
Ft. Lauderdale
For the people lucky enough to have the Stillen kit installed for their R&D.... please check in with specs and impressions..thinking of the upgrade for aggresive street driving and would like some input Thanks

What !! you don't drive your car hard,,, !! :biggrin .. I can't even get you on the Go Kart track,,, hard driving,, shhhssshh :lol Hey G call me... B.
 

Ed Sims

GT Owner
Mark IV Lifetime
Apr 7, 2006
7,931
NorCal
pics

Mousecatcher - there are pics under a similar thread in the General Discussion section of the Forum. It's actually the main thread on this topic.

Ed

PS Do you want to do Skyline & PCH next weekend? I'll PM you.
 

mousecatcher

GT Owner
Jun 26, 2007
200
San Mateo, CA
i'm racing next 2 weekends! :driving:
 

STORMCAT

GT
Mark IV Lifetime
Le Mans 2010 Supporter
May 25, 2006
7,582
Ft. Lauderdale
I went with the non drilled slotted rotor Stllen set up. I will try to get them on this weekend !! Ed give me acall if you see this note.. : )
 

911teo

GT Owner
Mark IV Lifetime
Jan 5, 2007
628
Surrey, UK
I have had the Stillen set up (with non drilled slotted discs) for nearly 5k miles now. It is great, but allow me a couple of comments...

1) Any fading of the stock braking set up that you might experience on the road is due to the brake fluid boiling. Swap the stock fluid for Castrol SRF and it should solve all your problems.

2) if swapping the fluid is not effective and you cure the spongy pedal but you are still getting some fading then upgrade the pads to racing pads (pagid RS29 work great). You will have to put up with brake dust (I painted my wheels black, so no problem there) and some squealing.

3) the main benefit of the stillen brake set up is that it has larger, 2 piece, full floating rotors. This will allow the heat to spread over a larger surface, increasing the time it will take to get to the fading point (using the same components).

4) even on the track I have never experienced fading with the stock system. My pads and rotors would last 1 track day (the pads in the front would actually last half a day), but it was the tyres overheating or finishing the fuel that would force me to stop, not the brake fading.

5) The Stillen set up is standing up to the track abuse fantastically. I have done 3 track days and a 2k mile trip across Europe (with braking from 200mph on the Autobahn) and had to change the pads once. The rotors are still in great condition.

6) I suppose the 6-piston caliper acheives a marginally higher clamping force than the stock one, but again the limit is the tyre, not the caliper.

6) The AP Racing calipers look great, like Ed said. The car should have come with 6-piston calipers at the front from the beginning.

All in all I am super happy with the set up. It does exactly what I hoped it would. It is pricey (I bought it early and had to pay some 18% import taxes for the UK on top) but in the long it is saving me money, as I d not have to keep replacing rotors and pads.

Looking forward to Ed's and Stormcat's reviews!
 
Last edited:

Ed Sims

GT Owner
Mark IV Lifetime
Apr 7, 2006
7,931
NorCal
brake thread

Please post on the main thread of the brakes under General Discussion.

Thanks, Ed