Track Day Best Practices - MUST READ

synolimit

Depends like said. A properly vented hood will only help!

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13 370z-

SurfDog

I did not see what was looking for with the obligatory search...

Question: (I've run a few setups with brakes at the track but am still a bit of a tech noob.)

I'll be changing my pads from hawk ceramics (which I run for DD) to hawk plus pads for my track day this week.

1. Do I need to "resurface" my rotors when I change my pads and how do I do it... (a bit of light sanding??) Or can I just swap and do a few quick "pad bedding" maneuvers to get my pads ready to run?

2. It's been about 6 months since my last fluid bleed. I have a few bottles of RBF 600 on hand. How do I know when I've bled out all the old fluid and have new dry fluid all the way through the lines? (I hear new dry fluid is a good safety tip to avoid boil off/fade)

I could have some brake shop do this stuff for me, but I'd actually like to start doing it at the track between heats (if i notice my pads wearing down on track weekends) and be able to swap my pads at home. (before and after track days.)

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09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

wstar

You probably don't need to muck with the rotors. Technically it would be more-ideal to kill the previous transfer layer first, but honestly you're more likely to do harm than good trying in many cases. Definitely don't have a shop put them on a lathe. If you do decide to try it, just scrub the surfaces with garnet paper (not sand paper), ~200 grit.

Bedding the new pads will be important. The mfg will have directions for how to do it, and with HP+ you can definitely do it on the street before you get to the event.

If you fully bled the fluid 6 months ago, you'd probably be ok to just bleed the calipers this time around. If you really want to flush the whole thing, just guestimate and use about a bottle per corner as you bleed the calipers (more in the rear than the front; longer lines). If the fluid's truly aged, you'll see the color change from darker to lighter when you start pumping out new fluid.

Swapping pads on our cars is relatively easy. Doing it yourself is always better if you can, because nobody cares about your car more than you do (especially not some random dude at a brake shop).

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7AT Track Car!
Journal thread / Car setup details

cossie1600

Just do it yourself, buy a one man bleeder and spend $100 on tools to make job faster. With the hp+, you will be changing rotors soon anyway

SurfDog

Gosh I hope not! I've got the 2 piece floating rotors from z1. Rebuilding them seems like a PITA. I'll definately try to cool them well before parking to minimize warp. I'd like to get at least a year out of them.

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09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

Shotta

If your going to be using real track only pads that will be rock hard when cold then use them with repeated stops at slow speed to scrape the transfer layer off from your street pads. Follow that by bedding your track pads.

Once done at the track do the same thing to scrap the transfer layer off again with cold racing pads then put your street pads back in and bed them.

Running real track only pads while cold is pretty much the same as using a lathe on your rotors, one of the many reasons you should not daily drive with real track pads.

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7AT - designed for enthusiasts

Rusty

sub'd.

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浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
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SurfDog

Awesome advice. Track only pads only on the track though

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09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

martin82

Don't be this guy please, my buddy is driving his z06 at an Extreme Speed hpde day, see what happened https://m.facebook.com/story.php?sto...909&id=6815164

MightyBobo

Can't see it. It's private.

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I don't own a car anymore.

carlitos_370z

same here cant see it....

osbornsm

Stop looking at his Privates.

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MightyBobo

Sounds like a cool story though. lol

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I don't own a car anymore.

SurfDog

Pad update. Hawk+ amazing on track borderline undrivable on streets (very grabby, not to mention dusty and loud lol). Ceramics going back in till spring (track season)

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09 6spd Berk CBE, JWT cams, ZSpeed CSC, Stillen (25 row oil, brake cooling, sways, gen3 CAI), Passport (9500ci), Quaife LSD, Z1 400 hp kit, ss lines, pads, rotors, clutch etc, Phunk's pan and fuel starve fix

wstar

Speaking of Hawk, I've been pretty impressed with their DTC-series pads so far. With DTC-70 front and DTC-60 rear, the rear bias is a little high leading to a bit of ice-mode tendency, but it's not horrible. Aside from that: they bedded well and they've held up well, they feel pretty good under modulation, and they're not over-grabby. DTC-70/30 or 60/30 might be the ticket for those pads.

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7AT Track Car!
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