Track forum general chit chat.

roastbeef · 07-15-2016, 10:16 AM

Quote:

Originally Posted by chamba002

Video of me at Harris Hill. Harry's Lap timer wasn't recording my lap times so I used my phone to live stream on Facebook lol. Very bumpy track, but still fun. I was hitting 100mph plus on the straights.

Nah, you were lowkey letting people of Facebook know you're a race car driver. It's cool.

silvergray545 · 07-15-2016, 10:22 AM

Quote:

Originally Posted by Kong Sheng Han

Those of you who use RBF 600, where do y'all get the fluid from? Prices on Amazon fluctuate a lot, and I've paid $16/bottle shipped before and $13/bottle shipped most recently. But I can't find anything at $13 anymore. :/

eBay. Last time I purchased, it was about $15 shipped.

Quote:

Originally Posted by chamba002

Video of me at Harris Hill. Harry's Lap timer wasn't recording my lap times so I used my phone to live stream on Facebook lol. Very bumpy track, but still fun. I was hitting 100mph plus on the straights.

Are those pads you're running street pads?

nholmes · 07-15-2016, 10:56 AM

Quote:

Originally Posted by chamba002

Video of me at Harris Hill. Harry's Lap timer wasn't recording my lap times so I used my phone to live stream on Facebook lol. Very bumpy track, but still fun. I was hitting 100mph plus on the straights.

You should totally post that here:

http://www.m3post.com/forums/showthread.php?t=1279093

chamba002 · 07-15-2016, 10:57 PM

Quote:

Originally Posted by silvergray545

Are those pads you're running street pads?

Yeah, akebono carbon ceramic pads. Didn't have fade in the 100 degree heat.

Sapper_M3 · 07-16-2016, 06:59 PM

Quote:

Originally Posted by chamba002

Quote:

Originally Posted by silvergray545

Are those pads you're running street pads?

Yeah, akebono carbon ceramic pads. Didn't have fade in the 100 degree heat.

Ambient temps have virtually no effect on brake performance or fade.

1MOREMOD · 07-16-2016, 07:08 PM

Yeah exactly 30 degree change outside isn't gonna matter when you operate at 500

roastbeef · 07-16-2016, 07:28 PM

Oh I'm sure it helps a little.

Sapper_M3 · 07-16-2016, 07:46 PM

Especially when we're talking about race compounds that have desirable operating ranges of 800 F - 1200 F and max temps of 1600 F or greater, even absurd ambient temp differences of freezing (at which we'd be hard pressed to find a track day happening) to 100 F are so small as to be negligible when discussing brake fade and cooling.

Even street pads that operate at much lower desirable ranges will not be measurably impacted by ambient temp.

Engine performance on the other hand...

1MOREMOD · 07-16-2016, 07:51 PM

I've been on track when there was ice in spots, was fine in s4 little different once in my m3

Sapper_M3 · 07-16-2016, 10:12 PM

Quote:

Originally Posted by 1MOREMOD

I've been on track when there was ice in spots, was fine in s4 little different once in my m3

Haha doesn't sound like fun, but sometimes you can't help yourself when you really NEED to get on track.

M3 Number 86 · 07-17-2016, 11:52 AM

Quote:

Originally Posted by roastbeef

Just took the passenger side rear brake caliper off for the first time today. I'm hunting a squeaking noise and thought maybe when the sensor broke off a piece got lodged between the rotor and pad. Nope. No idea what's causing it.

Oh, and F taking the rear calipers off. Shit sucks. I don't know how you guys deal with it.

Takes 2 mins!!

M3 Number 86 · 07-17-2016, 11:53 AM

Quote:

Originally Posted by Kong Sheng Han

Those of you who use RBF 600, where do y'all get the fluid from? Prices on Amazon fluctuate a lot, and I've paid $16/bottle shipped before and $13/bottle shipped most recently. But I can't find anything at $13 anymore. :/

Motorsportsfluid dot com

M3 Number 86 · 07-17-2016, 11:54 AM

Sprayed the roll bar. Helps to have friends who are pros lol he's in there some where because too lazy to mask everything.

nholmes · 07-17-2016, 01:22 PM

Selling a square set of E92 M3 18" 219 style OEM rear wheels that I picked up from ayao yesterday.

All four wheels are 18x9.5 e23

I would rate them a 9/10 or so due to some curbing and one scratch.

No cracks, bends or surprises.

I picked these up before checking fitment with my Brembo 380mm BBK and guess what, they don't fit.

$750

roastbeef · 07-17-2016, 01:29 PM

Quote:

Originally Posted by M3 Number 86

Quote:

Originally Posted by roastbeef

Just took the passenger side rear brake caliper off for the first time today. I'm hunting a squeaking noise and thought maybe when the sensor broke off a piece got lodged between the rotor and pad. Nope. No idea what's causing it.

Oh, and F taking the rear calipers off. Shit sucks. I don't know how you guys deal with it.

Takes 2 mins!!

Lies! I had to use a 7mm Allen wrench... Didn't have a ratchet attachment. It sucked.

M3 Number 86 · 07-17-2016, 01:43 PM

Quote:

Originally Posted by roastbeef

Quote:

Originally Posted by M3 Number 86

Quote:

Originally Posted by roastbeef

Just took the passenger side rear brake caliper off for the first time today. I'm hunting a squeaking noise and thought maybe when the sensor broke off a piece got lodged between the rotor and pad. Nope. No idea what's causing it.

Oh, and F taking the rear calipers off. Shit sucks. I don't know how you guys deal with it.

Takes 2 mins!!

Lies! I had to use a 7mm Allen wrench... Didn't have a ratchet attachment. It sucked.

Haha an Allen key?! Um, no shit Sherlock lol

roastbeef · 07-17-2016, 02:03 PM

Yea, F that nonsense.

roastbeef · 07-17-2016, 08:41 PM

is it possible for the rear rotors to get ruined by being "too polished?" there are zero cracks in the front or back. lots of meat on the pads. i'm running a hybrid pad (DS2500). One track day on these rear pads, so they are definitely bedded in. i didn't see any pad deposits. rear rotors have small waves to them, but they are pretty glassy for the most part.
i'm not sure what the thickness is- i don't have a micrometer handy. sensor is disconnected and not a factor. lots of squeal hot or cold on the street. any ideas?

also, if i had to guess by how big of a lip i have on the outer edge of the rotor face, i'd say there is a 2mm lip on each side.

redpriest · 07-18-2016, 04:10 AM

Quote:

Originally Posted by roastbeef

is it possible for the rear rotors to get ruined by being "too polished?" there are zero cracks in the front or back. lots of meat on the pads. i'm running a hybrid pad (DS2500). One track day on these rear pads, so they are definitely bedded in. i didn't see any pad deposits. rear rotors have small waves to them, but they are pretty glassy for the most part.
i'm not sure what the thickness is- i don't have a micrometer handy. sensor is disconnected and not a factor. lots of squeal hot or cold on the street. any ideas?

also, if i had to guess by how big of a lip i have on the outer edge of the rotor face, i'd say there is a 2mm lip on each side.

That's a pretty substantial lip. For reference, my 26+ track day rear AP racing rotor doesn't even have that much crazing on it, nor does it have any lip at all. Looks barely used.

When my front OEM rotors died, they were making horrible vibrating noises even though there were barely any visible cracks in the rotor holes. The lip was huge though. I imagine it's the same here for you.

redpriest · 07-18-2016, 04:12 AM

Quote:

Originally Posted by roastbeef

Lies! I had to use a 7mm Allen wrench... Didn't have a ratchet attachment. It sucked.

roastbeef · 07-18-2016, 05:11 AM

Quote:

Originally Posted by redpriest

Quote:

Originally Posted by roastbeef

is it possible for the rear rotors to get ruined by being "too polished?" there are zero cracks in the front or back. lots of meat on the pads. i'm running a hybrid pad (DS2500). One track day on these rear pads, so they are definitely bedded in. i didn't see any pad deposits. rear rotors have small waves to them, but they are pretty glassy for the most part.
i'm not sure what the thickness is- i don't have a micrometer handy. sensor is disconnected and not a factor. lots of squeal hot or cold on the street. any ideas?

also, if i had to guess by how big of a lip i have on the outer edge of the rotor face, i'd say there is a 2mm lip on each side.

That's a pretty substantial lip. For reference, my 26+ track day rear AP racing rotor doesn't even have that much crazing on it, nor does it have any lip at all. Looks barely used.

When my front OEM rotors died, they were making horrible vibrating noises even though there were barely any visible cracks in the rotor holes. The lip was huge though. I imagine it's the same here for you.

Well, looks like my rear rotors are done then.

PrimeBMW · 07-18-2016, 09:39 AM

Too bad PFC didn't have V3 Direct Drive rotors for the rear. (as far as I know). I think that would provide the perfect balance with front BBK.

07-16-2016, 07:08 PM	#1590
1MOREMOD - 11912 Rep 23,185 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	Yeah exactly 30 degree change outside isn't gonna matter when you operate at 500
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07-16-2016, 07:28 PM	#1591
roastbeef Lieutenant General 11865 Rep 12,880 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	Oh I'm sure it helps a little. __________________ Instagram; @roastbeefmike
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07-16-2016, 07:46 PM	#1592
Sapper_M3 Captain 49 Rep 611 Posts Drives: 2012 E92 M3, ZCP Join Date: Sep 2012 Location: Missouri iTrader: (0)	Especially when we're talking about race compounds that have desirable operating ranges of 800 F - 1200 F and max temps of 1600 F or greater, even absurd ambient temp differences of freezing (at which we'd be hard pressed to find a track day happening) to 100 F are so small as to be negligible when discussing brake fade and cooling. Even street pads that operate at much lower desirable ranges will not be measurably impacted by ambient temp. Engine performance on the other hand...
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07-16-2016, 07:51 PM	#1593
1MOREMOD - 11912 Rep 23,185 Posts Drives: Race car-> Join Date: Mar 2009 Location: check your mirrors iTrader: (5)	I've been on track when there was ice in spots, was fine in s4 little different once in my m3
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07-17-2016, 11:54 AM	#1597
M3 Number 86 Major General 3335 Rep 6,217 Posts Drives: black m3 Join Date: Mar 2015 Location: pasadena iTrader: (1)	Sprayed the roll bar. Helps to have friends who are pros lol he's in there some where because too lazy to mask everything. Attached Images __________________ dadmobile IG: @M3number86 youtube: track vids
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07-17-2016, 01:22 PM	#1598
nholmes Track Whore 555 Rep 1,657 Posts Drives: women wild Join Date: Oct 2015 Location: NorCal iTrader: (15)	Selling a square set of E92 M3 18" 219 style OEM rear wheels that I picked up from ayao yesterday. All four wheels are 18x9.5 e23 I would rate them a 9/10 or so due to some curbing and one scratch. No cracks, bends or surprises. I picked these up before checking fitment with my Brembo 380mm BBK and guess what, they don't fit. $750 __________________ 1998 E36 M3 2018 X5 35dX
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07-17-2016, 02:03 PM	#1601
roastbeef Lieutenant General 11865 Rep 12,880 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	Yea, F that nonsense. __________________ Instagram; @roastbeefmike
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07-17-2016, 08:41 PM	#1602
roastbeef Lieutenant General 11865 Rep 12,880 Posts Drives: E92 M3 Join Date: Nov 2010 Location: Orange County, CA iTrader: (4)	is it possible for the rear rotors to get ruined by being "too polished?" there are zero cracks in the front or back. lots of meat on the pads. i'm running a hybrid pad (DS2500). One track day on these rear pads, so they are definitely bedded in. i didn't see any pad deposits. rear rotors have small waves to them, but they are pretty glassy for the most part. i'm not sure what the thickness is- i don't have a micrometer handy. sensor is disconnected and not a factor. lots of squeal hot or cold on the street. any ideas? also, if i had to guess by how big of a lip i have on the outer edge of the rotor face, i'd say there is a 2mm lip on each side. __________________ Instagram; @roastbeefmike Last edited by roastbeef; 07-17-2016 at 08:51 PM..
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07-18-2016, 09:39 AM	#1606
PrimeBMW Major 672 Rep 1,424 Posts Drives: E46 M3+S62, E92 M3 Join Date: May 2009 Location: Portland, OR iTrader: (0)	Too bad PFC didn't have V3 Direct Drive rotors for the rear. (as far as I know). I think that would provide the perfect balance with front BBK.
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