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Carbotech XP10 front XP8 back - my choice BUT

Originally Posted by fairladyATX How difficult was the Stillen brake cooling install? I'm looking to install this or the Z1 kit before my next track day. I did my 1st

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Old 06-30-2021, 02:38 PM   #1 (permalink)
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How difficult was the Stillen brake cooling install? I'm looking to install this or the Z1 kit before my next track day.

I did my 1st track day in the Z last weekend with XP10s/XP8s on aftermarket drilled/slotted rotors w/ Motul RBF600 fluid and got major brake fade at the end of the sessions. Thinking I absolutely need to add cooling and install SS lines to replace the 7-year-old factory rubber.

And, I just bought street pads so I'll only run the Carbotechs on the track. At $300/set, plus the dust and squealing, I only want them on the track. I went with Centri Posi-Quiet for the street pads, they cheaper on Amazon than from Z1, FYI.
I'm gonna butt in here: which track are/were you running?

I agree with what's been said here. I think you'll get the best improvement from the stainless lines. I would bump up the brake fluid to 660 as well. I cannot speak to the 10/8 combo as I've never run it, but the 12/10 combo gives you unbelievable stopping power and will give you some more pad life.

I don't have cooling and I haven't had any fade issues with the brakes, but usually, I cook my tires before I get to brake fade. So I will defer to others on whether you absolutely have to install the cooling kit at this point.
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Old 06-30-2021, 02:40 PM   #2 (permalink)
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Originally Posted by abm89 View Post
I'm gonna butt in here: which track are/were you running?

I agree with what's been said here. I think you'll get the best improvement from the stainless lines. I would bump up the brake fluid to 660 as well. I cannot speak to the 10/8 combo as I've never run it, but the 12/10 combo gives you unbelievable stopping power and will give you some more pad life.

I don't have cooling and I haven't had any fade issues with the brakes, but usually, I cook my tires before I get to brake fade. So I will defer to others on whether you absolutely have to install the cooling kit at this point.
I switched from the Stillen 2" hose to a 3" hose. What a PITA that was. But it works.
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Old 06-30-2021, 02:43 PM   #3 (permalink)
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I switched from the Stillen 2" hose to a 3" hose. What a PITA that was. But it works.
Oh I definitely don't doubt it. I think I tried routing a custom kit for a bit and that helped, but I ended up removing it since the tracks where I went to at the time (H2R and MSRH) Arent heavy on the brakes, and then some corners don't require brakes with the aero.

I did have an idea for making some GT3-R style ducting for my useless side vents, but I already have too many projects.
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Old 06-30-2021, 07:00 PM   #4 (permalink)
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Originally Posted by abm89 View Post
I'm gonna butt in here: which track are/were you running?

I agree with what's been said here. I think you'll get the best improvement from the stainless lines. I would bump up the brake fluid to 660 as well. I cannot speak to the 10/8 combo as I've never run it, but the 12/10 combo gives you unbelievable stopping power and will give you some more pad life.

I don't have cooling and I haven't had any fade issues with the brakes, but usually, I cook my tires before I get to brake fade. So I will defer to others on whether you absolutely have to install the cooling kit at this point.
MSR Houston last weekend. I see you've been there!

On the end of the 2nd session, the pedal went to mush and I couldn't slow down enough to make it into turn 16 coming out of Gut Check so I went into pit lane. At first I thought it was driver error, but when I got into the paddock, the pedal was going to the floor. Bled the brakes in the paddock and everything was fine the rest of the weekend.

For additional content, this was really strange since I had just bled the brakes the weekend before, put 5 bottles of fluid through it so I was damn sure (so I thought) the OEM fluid was out. When I re-bled them on the track, I bled through less than 1 bottle and like I said, no issues with the brakes the rest of the weekend but they did seem to get softer as the day got hotter and 20-25 mins into the session.
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