Audi Club NW's Verloren Gehen - Oregon Raceway Park

A5/S5/RS5
#1

Two years ago, I first drove on this racetrack. At the time, the local Audi club chapter finally opened it up to solo signed off drivers with no instruction.

And of course, there was this still seared in my memory:
https://www.youtube.com/watch?v=i_XOa627xcQ

My brother took a bunch of pics, so I’ll have to get them from him. But here are some videos:
https://www.youtube.com/watch?v=Nl8cotyGBrQ
https://www.youtube.com/watch?v=gk2lmZ_GmgU
https://www.youtube.com/watch?v=Ek61PMp8xXQ

I absolutely love how the car handles around a race track. I do plan on getting stickier tires (and suspension mods).

One thing I did encounter, was brake heat issues… I boiled StopTech ST-660 fluid which resulted in me losing braking (for Turn 3 - which is a sharp off camber left turn after a down hill section). I was ready to take the car off the track but pumped the pedal a few times and got enough brakes to make the corner. I had built a big enough gap with the car behind me that I overtook so I could limp it back to the pits without causing a back up. Though when I got to the pits, the checker flag came out so I headed back out for a cool down lap.

So there I was bleeding my brakes at the race track using a can of brake fluid that I got from my friend (who works at Achtuning) and my friend’s power bleeder (I now have a track kit that consists of two cans of brake fluid and a power bleeder - as well as a bottle of motor oil - though the car doesn’t burn any oil). Fluid came out dark and bubbly (signs of very boiled fluid).

So with this, I’m going to have to address the overheating issues next. Tires and suspension should increase surface adhesion (which translates to less brakes), but I also need a bigger rotor (only Brembo has something out, and it does cost a pretty penny). Goes without saying that the dust shields will be coming off too… :slight_smile:

But as with all my other mods, it will come in increments (so I can feel them out on the racetrack).

I also found my jar of temperature paint, so I will be using that as well.

I do NOT ride the brakes. I brake short but very hard and trail brake quite a bit. There’s a hypothesis that I’ve been throwing around with the guys at Achtuning that the ASR might be using the brakes when I do not. So I might try a session without ASR, and then run a session like normal (driving style unchanged), and see how hot the paint gets. That or I’ll pull in and have my buddy shoot my brakes with a IR thermometer. It’s fun trying to figure these things out.

I do plan on keeping the RS5 for quite a while. And eventually, I’ll be trailer-ing it to track days too.

Anyways, enjoy the videos. I’ll post pics later. :slight_smile:

#2

Man I love that track. Thanks for the videos, made my Vegas hotel room not so boring! (sadly here for biz)

#3

No problem man. Always like sharing track videos (and watching them too!) My friend in the Porsche Boxter Spyder (the white one) posted a video from his perspective on that lap (sadly it’s on fb, not on youtube, or else I would have shared it). Pretty cool to see it from both perspectives.

Dude, we should do a track day together sometime. Let me know when you’re doing on on the weekend lol!

#4

Wow the sound difference on those two videos is staggering (3.0t vs 4.2 fsi).

That close call was funny. You chose the one place with a cement wall to get loose.

#5

Oh and dude… You really need the audiotechnica microphone I have. Atr6500 or something. Look on the go pro thread.

#6

Extremely jealous of you US guy’s and how many track’s you have at your disposal!

#7

Yeah, there is quite the noticeable difference in sound track. I love the sound of the 4.2.

I was running all season tires and they overheated lol. I turned the wheel and nothing. LOL!

#8

Yeah, I do want to get that mic set up. I just need to get a new Go Pro first.

#9

There’s quite a few tracks in the Pacific North West. I think there’s one in BC too.

#10

Ya we do have one local track Mission Raceway, and it’s closed till mid May for repairs. We do have a few old school oval track’s but no actual road course’s.

I just found out about this alittle while ago, looking like they are building a track in the South Okanogan.

www.area27.ca

#11

What size tire do you need? I have some take offs from my S6 and pops RS7

#12

Stock is 275/30/R20

What are the sizes for the S6 / RS7?

I had all seasons on the B8 S4. I’m on the stock pirelli pzeros right now.

#13

should work on anything from 2 up

#14

275/53R20

http://www.audizine.com/forum/showthread.php/570953-Yokohama-Adven-Sport-OEM-tires-255-35-R20-(C7-S6)-amp-275-35R20-(RS7)

#15

53? Some big ol sidewalls there notarmed

#16

Well shit. I accidentally hit a new pothole and now I have a bruise in the tire… Too bad your tire is a bit higher profile…

#17

Excellence magazine and European car magazine were at Oregon Raceway Park this week, doing articles on one of the p-train members cars (RS America Cup car and R8 Twin Turbo).

The guy blew up the tranny in the RS and got a ticket going 150 in the Audi. Should make for a fun article!

My RS purring in the pits…

https://farm8.staticflickr.com/7460/13898171397_b597a1a746_o.jpg
Untitled by well_armed, on Flickr


https://farm3.staticflickr.com/2898/14085263154_feb4f6e8d3_c.jpg
Untitled by well_armed, on Flickr


https://farm3.staticflickr.com/2911/13898195328_95d4135f36_c.jpg
Untitled by well_armed, on Flickr


https://farm6.staticflickr.com/5280/14061674766_66ba98ea27_c.jpg
Untitled by well_armed, on Flickr


https://farm8.staticflickr.com/7443/14061674316_413d5a0e56_c.jpg
Untitled by well_armed, on Flickr


https://farm6.staticflickr.com/5192/14081638742_cdfca6bd7f_c.jpg
Untitled by well_armed, on Flickr

#18

So a little off topic, but i figured this belonged here. :slight_smile:

Buddy in a 944 with LS3 V8 chasing me at Grass Valley: http://vimeo.com/101378470

#19

Wow, that track is amazing!!!

Not surprised that you boiled 660–I did the same thing :slight_smile: (though my brakes are smaller!).
I find Motul fluid not to be that good, unless you’re up for bleeding prior to every track day. I’ve since switched to SRF (way higher wet boiling point).

I did watch your vids, and while you have great smooth driving, it does look like you use the brakes quite a lot.
Yes - perhaps you do not ride them, but most certainly you are able to enter a number of corners faster than you have been in those videos. You still have a lot of road to use :wink: Certainly, I understand the desire to baby your car, and perhaps that’s what is going on here. But there is speed left on the table is all I’m saying :smiley:

Before jumping to a BBK or something, have you considered better pads? You can brake later, use the brakes less and thus induce less heat. I’m finding the stock pads to be woeful for track use. Try RS29 up front and RS19 out back if you can deal with some brake squeal. Oh and if you can, source some ti backing plates. It’ll keep heat off your fluid, but you’ll find your pads fade a lot more…bc heat is now bared by the pad at a much higher level. So certainly, better pads are needed!

#20

Hey man!

There’s a number of factors in me using my brakes, I don’t ride on them (and I don’t over brake for the level of adhesion - I’ve given multiple ride alongs to others to get their opinion), but I do late (hard) brake quite a bit. And then there’s the issue of managing the fade (prolonging my braking with a lighter foot). For ORP, what you don’t see is the number of off camber corners. My suspension is still stock and I have a lot of weight/body roll to contend with. And there’s the issue of tires overheating as well (gets a little slick).

One of the things that I have found is that the RS5 uses the front brakes to stabilize the car (kinda like how the rear torque vectoring). Managing around this (changing my driving habits), I noticed a 100F difference in rotor temperatures (coming in hot in the middle of a session) when I negated that front system coming on.

As for pads, I run Carbotech XP24 pads right now. In the videos, I used the Carbotech RP2 and I destroyed those pads.

You can follow my braking adventures here:
http://audirevolution.net/forum/index.php?topic=2372.msg75482#new

I’ve worked on technique and cooling already. Next up is increasing surface adhesion so I have H&R RSS+ coilovers coming in soon (and will be going to R-Compounds next season).

Thanks for the comments on smoothness. I typically do go pretty fast around the long sweeping corners. But again, it’s adhesion (or lack of it) knowing how much of the track I can/should use to link the apexes together.

Another thing I do plan on getting next year is a Vbox sport as I experiment with lines on a race track:
http://www.vboxmotorsport.co.uk/index.php/en/products/performance-meters/vbox-sport

I didn’t record my latest track day but I’m now quite used to the car and I will build speed as I build confidence in pushing the car. ORP was my second ever track day with this car and it behaves differently than the B8 S4 I used to track.