Thill trackday and LSD discussion
Thread Starter
Nordschleife Master
Joined: Nov 2010
Posts: 7,804
Likes: 193
From: Bay Area
http://www.amazon.com/Olympus-ME-52W-Noise-Canceling-Microphone/dp/B000MYPPPE/ref=sr_1_1?ie=UTF8&qid=1367159951&sr=8-1&keywords=microphone+olympus+noise+reduction
I route the wire through the rear decklid, and then clip behind the license plate frame. Perfect place.
Pro
Joined: Aug 2010
Posts: 526
Likes: 2
From: New York
I use this mic:
http://www.amazon.com/Olympus-ME-52W-Noise-Canceling-Microphone/dp/B000MYPPPE/ref=sr_1_1?ie=UTF8&qid=1367159951&sr=8-1&keywords=microphone+olympus+noise+reduction
I route the wire through the rear decklid, and then clip behind the license plate frame. Perfect place.
http://www.amazon.com/Olympus-ME-52W-Noise-Canceling-Microphone/dp/B000MYPPPE/ref=sr_1_1?ie=UTF8&qid=1367159951&sr=8-1&keywords=microphone+olympus+noise+reduction
I route the wire through the rear decklid, and then clip behind the license plate frame. Perfect place.
Thanks. Is this GoPro Compatible?
Nordschleife Master
Joined: Apr 2006
Posts: 8,936
Likes: 3
From: theporscheconnection.com
So while my lap times are comparatively pathetic next to Ben (2:06-2:07), I make up for it (slightly) with better quality video. 
Unfortunatly, my rear camera with the external mic was frizzing out on me, so I only had one session with good audio (damn you, gopro). FF to 5:23 for that part. This was the session where I got some footage of redyps and Schmidt's Cat, though.
In regards to my brembo type III brake rotors and PFC08 pads, I'm very happy with the setup. Zero issues with fade or stopping power. I've always been able to get my brakes to smoke on the BRZ and my old Evo, but the spyder brakes still never smoke. I think that the sheer size of the PCCB calipers and corresponding rotors have a lot of capacity in them. Stopping power is much better with the PFC08 pads over the P40 OEM PCCB pads. However, with the increased stopping power, a new 'issue' has come up:
The rear end of my car likes to squirm like mad when braking hard from 100+ mph. So much so, it feels like I might lose control of the car. The rear chase cam from my buddy following me doesn't seem to show that much wiggle, but I definitely feel it, and it can be disconcerting. Is this a problem with my stock LSD? I'm guessing I need to bite the bullet and upgrade to a guards LSD if I want to get rid of this, but I'd like to hear any other thoughts as to why this might be happening or what I can do about it. Interestingly enough, Ben doesn't seem to have this problem. Is this because he has PDK and I'm manual? Is this because of my larger brakes? Is it the GT3 master cylinder? Is this because I'm doing something wrong techically? (I believe I'm braking in a straight line).
Unfortunatly, my rear camera with the external mic was frizzing out on me, so I only had one session with good audio (damn you, gopro). FF to 5:23 for that part. This was the session where I got some footage of redyps and Schmidt's Cat, though.
In regards to my brembo type III brake rotors and PFC08 pads, I'm very happy with the setup. Zero issues with fade or stopping power. I've always been able to get my brakes to smoke on the BRZ and my old Evo, but the spyder brakes still never smoke. I think that the sheer size of the PCCB calipers and corresponding rotors have a lot of capacity in them. Stopping power is much better with the PFC08 pads over the P40 OEM PCCB pads. However, with the increased stopping power, a new 'issue' has come up:
The rear end of my car likes to squirm like mad when braking hard from 100+ mph. So much so, it feels like I might lose control of the car. The rear chase cam from my buddy following me doesn't seem to show that much wiggle, but I definitely feel it, and it can be disconcerting. Is this a problem with my stock LSD? I'm guessing I need to bite the bullet and upgrade to a guards LSD if I want to get rid of this, but I'd like to hear any other thoughts as to why this might be happening or what I can do about it. Interestingly enough, Ben doesn't seem to have this problem. Is this because he has PDK and I'm manual? Is this because of my larger brakes? Is it the GT3 master cylinder? Is this because I'm doing something wrong techically? (I believe I'm braking in a straight line).
Thread Starter
Nordschleife Master
Joined: Nov 2010
Posts: 7,804
Likes: 193
From: Bay Area
Thanks. I'm not convinced it's ABS. I didn't hear/feel the wheels trying to lock. It may be because my wheel weights flew off and the wheels were unbalanced at that point. It may also be an alignment issue. I'm going to try the simple things first and go from there.
Three Wheelin'
Joined: Sep 2011
Posts: 1,803
Likes: 23
From: PA
Joe et al,
If you guys are talking about what I think you're talking about (rear end getting squirrely under heavy braking), this is from a lack of LSD or because the stock LSD is not up to the task (stock Porsche LSDs suck). Guard LSD will fix that problem.
It ain't just me talking - many personal accounts from seasoned drivers where the back end squirreling under heavy braking disappeared after better LSD install. Obviously LSD is also important for preventing inside wheel spin in tight corners. I have no idea why Ben's symptoms disappeared on its own. Perhaps his were from a different problem.
If you guys are talking about what I think you're talking about (rear end getting squirrely under heavy braking), this is from a lack of LSD or because the stock LSD is not up to the task (stock Porsche LSDs suck). Guard LSD will fix that problem.
It ain't just me talking - many personal accounts from seasoned drivers where the back end squirreling under heavy braking disappeared after better LSD install. Obviously LSD is also important for preventing inside wheel spin in tight corners. I have no idea why Ben's symptoms disappeared on its own. Perhaps his were from a different problem.
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Thread Starter
Nordschleife Master
Joined: Nov 2010
Posts: 7,804
Likes: 193
From: Bay Area
I talked to the shop that does some work on my car about the rear end squirming. They think it's because I'm running too aggressive of a pad on the rear of the car. I'm running PFC08 all around. Maybe I'll put the OEM P40s back on the rear?
Three Wheelin'
Joined: Sep 2011
Posts: 1,803
Likes: 23
From: PA
I run Pagid Yellows front & back. I used to get a lot more rear end squirreling in the Boxster S (no LSD). Get much less now on the Spyder with LSD, though I do have more negative camber now than I had in the S. I've heard experienced people say that a good LSD (e.g. Guard) will solve the squirrely rear end problem, and AFAIK that's what Matt (from Guard) says also.
BTW, I recently bought PFC brake pads to try out when the current Pagids are done.
Where did you get PFC 08 for the rear, Joe? I could only find PFC 06 online and that's what I ended up buying - 08 for front and 06 for rear.
Racer
Joined: Aug 2010
Posts: 396
Likes: 0
From: San Francisco
Joe has the PCCB calipers, if you have standard calipers then PFC08 is not available for the rear.
Three Wheelin'
Joined: Sep 2011
Posts: 1,803
Likes: 23
From: PA
Racer
Joined: Aug 2010
Posts: 396
Likes: 0
From: San Francisco
Three Wheelin'
Joined: Sep 2011
Posts: 1,803
Likes: 23
From: PA