Brake fluid
#16
Addict
Rennlist Member
Rennlist Member
I've been using Pro Speed RBF 683 and have not boiled it. Indy, NASCAR lots of ALMS and Rolex teams have switch over to this fluid.
I found SRF to feel more mushy all the time and sometimes I had thought I boiled it but really didn't. Pro Speed have less oxygen in it, it's the least compressible fluid on the market and it really good for your seals. I'm completely sold on Pro Speed 683
I found SRF to feel more mushy all the time and sometimes I had thought I boiled it but really didn't. Pro Speed have less oxygen in it, it's the least compressible fluid on the market and it really good for your seals. I'm completely sold on Pro Speed 683
#17
Nordschleife Master
On most proper race rotor setups you can use the hats and do not have to replace them (AP, Brembo, PFC, Alcon, Endless). Some designs allow the hats to last longer than longer due not stressing the hats so much. In professional motorsports, the AP design is the most popular because it has almost 0 stress to hats by keeping the "float" on the brake disc and does not carry any of the of the extra weight of the PFC mounting system.
Also I believe AP / Brembo require new hardware when changing rotors
I like simple
#18
Burning Brakes
I've been using Pro Speed RBF 683 and have not boiled it. Indy, NASCAR lots of ALMS and Rolex teams have switch over to this fluid.
I found SRF to feel more mushy all the time and sometimes I had thought I boiled it but really didn't. Pro Speed have less oxygen in it, it's the least compressible fluid on the market and it really good for your seals. I'm completely sold on Pro Speed 683
I found SRF to feel more mushy all the time and sometimes I had thought I boiled it but really didn't. Pro Speed have less oxygen in it, it's the least compressible fluid on the market and it really good for your seals. I'm completely sold on Pro Speed 683
#20
Nordschleife Master
You should try the PCCB with PFC-08, the bedding-in procedure on PCCB requires 50 iterations of go/almost-stop from 80mph down to 20mph, I have it written somewhere, makes a huge difference. The best pads I have used with CCB are RS29 and RS19, but PFC-08 seem to be a better pad.
#21
Stujelly- I don't think you are boiling your fluid, sounds like simple brake fade. With that said I am currently using Endless RF650 after I found out it was factory fill in Cup cars. Previously I used SRF and was perfectly happy with it as well.
#22
Race Director
#23
Rennlist Member
Agree with Endless RF650. Running it in my RS. Did track day at over 100F yesterday and had absolutely no fade and no problems. Except for ripping off the front plastic brake ducts....but that was my fault! Even with no brake ducts, wow.
#24
Addict
Rennlist Member
Rennlist Member
Mike, put that car on the dyno, and put it on the scales with a full tank of gas, it would be a good start to check where it stands. Then suspension and weight can be dialed better, right now you cannot corner weight your car, and that makes a decent difference in track pace.
#26
Rennlist Member
Thread Starter
I only happened at the last session of each day. I think you are right about fade vs boiling. I am going to start looking for a way to get more air to the brakes.
Anyone know of any good DIY on getting more air to the front brakes?
#27
Rennlist Member
Thread Starter
I found another post on the endless fluid, looks like there are 2 schools of thought here. SRF and Endless. Thinking of trying the endless. I experienced what fc racer was talking about in his post, still good bite, but longer pedal travel.
https://rennlist.com/forums/997-gt2-...id-review.html
https://rennlist.com/forums/997-gt2-...id-review.html
#29
Rennlist Member
if there are no proper ducts and cooling any fluid will boil. with proper cooling any racing fluid should be fine. all we talk about if a difference in boiling point of 50-80 degrees. it is nothing if there is no proper airflow there to cool down rotors.
#30
Race Director
Mike, put that car on the dyno, and put it on the scales with a full tank of gas, it would be a good start to check where it stands. Then suspension and weight can be dialed better, right now you cannot corner weight your car, and that makes a decent difference in track pace.