jcs_911

So I got a chance to drive a good friend's GT4 on the track. The one thing I noticed was the brake pedal effort needed to slow the car at track speeds was way higher than what I was expecting. I remember seeing a video about F1 cars and the high brake pedal force needed, and it was to allow better brake modulation. I assume that is the same situation here. So my question is - how have you adapted to the necessary brake pedal force needed in the GT4 on the track? Technique, or track time, or ???

xstnte

Trail braking.

TRZ06

I'm assuming it was the steel brakes? The PCCB's are very grabby with a strong initial bite and low pedal effort.

lovetoturn

Good track pads will reduce the pressure a bit and improve initial bite. Can't wait to get my first set on the car. Still polishing off the stock set.

ExMB

Compared to what other car? What pads were used in either? Etc.

clutchdj

Hello.
I have noticed this too with my stock gt4. Excellent typical Porsche pedal feel, but slowing the car down is a different story. the stock pads are very good for the street.
I track an M3cs with an ap racing setup. pfc08&11.

Lou L

I was not happy with the stock setup for tracking even with better fluid, I put on Giro disc rotors and Padgid Yellows and it's much better but still not what I was expecting given the size of the brakes.

AlexCeres

Uhm … this must be the steel brakes ? The ceramics are fabulous, bite quickly and hard with a nice linear feel through the pedal.
For track use, you want track pads and fluids.

rp2000r

I have noticed this too on a stock 21 GT4 and feel at times like Iam standing on the pedal and not much is happening, kind of a uneasy feeling of not stopping in time.

I had a Lexus RCF Track Edition with the LFA Ceramic brakes and those were unbelievable, strong bite and fast stopping with not much effort. I always could stop shorter if I wanted and never felt like it wouldn’t stop in time.

I can’t stand the dust with the steels and wish I had ceramics but my car was a dealer build so I am still trying to get used to the GT4 setup.

JCviggen

I love the brake pedal feel, can't really tell a difference with a GT3's. Less brake assist makes for better feel at the limit. My non-GT Porsches have an over-boosted brake feel and the first part of the pedal does nothing. The GT4 feels halfway to a race car but compared to a GT4 Clubsport it's still pretty low force to apply.

The stock pads aren't ideal but not terrible either. Going to Ferodo Ds1.11 improved things markedly.

sobiloff

Odd. I've run the stock pads, and am currently running pads from Cobalt Friction, at the track (SRF or Endless fluid). Both sets of pads have worked very well there. Yes, they are progressive, but that's a positive thing. They're easy to modulate and there's plenty of travel before getting into the ABS. Even at the end of a 20-minute session on 100° (F) days the brakes still work great. I'd be aghast if my brakes acted like Audi brakes, with huge initial bite and very little additional pressure needed to engage the ABS. But maybe that's just my personal preference…

Archimedes

I’ve never felt like the iron brakes on any of my Porsches had great feel or power. Always felt a little underpowered for the car and a bit numb feeling. Loved the PCCB cars though. Fantastic feel and control. But not cheap to track of course.

OP, try different pads/fluid, and if you’re still unhappy upgrade to one of the many aftermarket options available for the GT4.

Bill Lehman

I think the steel brakes in the GT4 is one of the best features of the car. I got 56 track days out the first set of front rotors running Ferodo DS1.11 and Motul 660 fluid. I run in the Instructor group and can out brake just about every car.

DC021

As a racer in both sprint racing and endurance disciplines, I think the pedal feel and effort is just about perfect for a track focused street car. I would actually prefer something a bit firmer, but you’d have to compromise its street manners.

More pedal effort allows for more Modulation, it’s something we strive for in our racecars. The human body is much better at distinguishing the difference between 50# and 60# (of pedal effort) than it is at distinguishing the difference between 25# and 30#.

TRZ06

I CAN'T WAIT to experience the PCCB's on a regular basis. I have never had a car with them before and they impressed me SOOOOO much on my test drives. I think it will really add quite a bit of added value to the overall driving experience.