Autobahn Monday 9/14


Phalabala

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I'll be there with red ZLE along with two friends (white c7 and silver e46 m3.) The white c7 will be with me in Intermediate, e46 m3 buddy will be in advanced. ;)
 
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WhiteKnuckleScat

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I'll be there with red ZLE along with two friends (white c7 and silver e46 m3.) The white c7 will be with me in Intermediate, e46 m3 buddy will be in advanced. ;)
Nice, I’ll keep an eye out for you. I’ll be in the white charger. Where do you normally make your pit?
 

JAhmed

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I'll be there with red ZLE along with two friends (white c7 and silver e46 m3.) The white c7 will be with me in Intermediate, e46 m3 buddy will be in advanced. ;)
Was a fun event with great weather. Was your friend in the blue E46 in advanced? I was running the black Scat Pack
 

Phalabala

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Was a fun event with great weather. Was your friend in the blue E46 in advanced? I was running the black Scat Pack
was a silver E46, and yeah he was in advanced :)

Yesterday turned out to be a pretty great day. Was going back and forth with a dude in a white ZL1 that was sending it for the full 30 minute session. Sadly I hit the wrong button and didn't fire up the PDR but dude said he knocked off a couple 2:40.xx laps while we were going back and forth which if I had recorded it would have been a new personal best. The best I had recorded on my PDR was another 2:43.xx
 

JAhmed

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was a silver E46, and yeah he was in advanced :)

Yesterday turned out to be a pretty great day. Was going back and forth with a dude in a white ZL1 that was sending it for the full 30 minute session. Sadly I hit the wrong button and didn't fire up the PDR but dude said he knocked off a couple 2:40.xx laps while we were going back and forth which if I had recorded it would have been a new personal best. The best I had recorded on my PDR was another 2:43.xx
Thats awesome. I did my PB yesterday as well, 2:40.27
Unfortunately I also found out that you CAN boil Motul RBF600 if you try hard enough.
 

Thirdgen89GTA

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Thats awesome. I did my PB yesterday as well, 2:40.27
Unfortunately I also found out that you CAN boil Motul RBF600 if you try hard enough.
That just means you need Castrol SRF.

Guys at RA boil brake fluid all the time, even RBF600. I think without a doubt, every single instructor ran Castrol SRF. Highest boiling point, highest wet-boiling point. Highest price.

And I can stomach a pretty high price if it means the difference between "Oh Shit Wall!!!" and Driving Home with Brown Shorts.
 

JAhmed

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That just means you need Castrol SRF.

Guys at RA boil brake fluid all the time, even RBF600. I think without a doubt, every single instructor ran Castrol SRF. Highest boiling point, highest wet-boiling point. Highest price.

And I can stomach a pretty high price if it means the difference between "Oh Shit Wall!!!" and Driving Home with Brown Shorts.
For sure. I typically ran SRF but this time just happened to have some Motul laying around and threw it in. Unfortunately, it seems that the temperatures generated by these Carbotech pads are just a bit much.
 

JAhmed

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BTW, the white and red ZL1s looked awesome...been really tempted by a ZL1 1LE for the past several weeks now, and yesterday definitely didn't help...
 
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WhiteKnuckleScat

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For sure. I typically ran SRF but this time just happened to have some Motul laying around and threw it in. Unfortunately, it seems that the temperatures generated by these Carbotech pads are just a bit much.
I was boiling everything yesterday. Definitely had a bit of a brown pants moment going into turn 11 where the pedal went really soft around my 6th or 7th lap. Also running the motul 600. My coolant was boiling as well on the line that returns to the top of he reservoir.
 
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WhiteKnuckleScat

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Put one of my Laps up on YouTube. This was about the sixth lapp and my brakes weren’t feeling great at this point, the next lap is where the pedal went soft into turn 11. Next time I mount the camera here I’ll try a wide angle because some of the corners get cut off.
Open to suggestions on how to improve. This was a 03:00.93 laptime.

 

SpeedSpeak2me

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Put one of my Laps up on YouTube. This was about the sixth lapp and my brakes weren’t feeling great at this point, the next lap is where the pedal went soft into turn 11. Next time I mount the camera here I’ll try a wide angle because some of the corners get cut off.
Open to suggestions on how to improve. This was a 03:00.93 laptime.

I gotta say, for me, it's really weird to hear tire squeal and see braking that early. I'm so used to running it on a bike. I'm also used to seeing the camera tilt left and right with lean angle, so I was like, "dude, you need to get that thing leaned over for the corners! Stop standing it up. Oh wait, four wheels." LOL
 

Thirdgen89GTA

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This is where my brakes went to shit 😳

I don't know about you, but if I had to go that deep into a corner just to keep the car on track I'd probably back off for a bit and take a breather.

Had it happen in the ST a few times I pushed it at RA. Usually either turn 5 or turn 8 being that they come after some big downhill braking zones.
 
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WhiteKnuckleScat

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I don't know about you, but if I had to go that deep into a corner just to keep the car on track I'd probably back off for a bit and take a breather.

Had it happen in the ST a few times I pushed it at RA. Usually either turn 5 or turn 8 being that they come after some big downhill braking zones.
Yeah, I backed way off after I passed that car and got off the track. It was weird, the brakes felt like they came back pretty quick, but then I got off the track and cruised around the paddock they went to shit again. I’m guessing cause they got really hot without the air cooling them down. It took like five minutes of putting around until I had a solid pedal feel.
 

Thirdgen89GTA

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Yeah, I backed way off after I passed that car and got off the track. It was weird, the brakes felt like they came back pretty quick, but then I got off the track and cruised around the paddock they went to shit again. I’m guessing cause they got really hot without the air cooling them down. It took like five minutes of putting around until I had a solid pedal feel.
Yeah, I could see that happening. You dump a bunch of heat into the rotors, and back off, but while at speed its got enough airflow to keep the heat from soaking into the fluid more. But then when you slow down the reduced airflow allows more heat to soak into the calipers/fluid.

One thing I love is the way cars at the a real track smell different from cars at the drag strip.

At the strip, the breaks never really get a work-out, and you don't put enough heat into other components for them to begin to out-gas.

But at the road course, those components heat up and give off all their unique smells.
 

Intel

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Put one of my Laps up on YouTube. This was about the sixth lapp and my brakes weren’t feeling great at this point, the next lap is where the pedal went soft into turn 11. Next time I mount the camera here I’ll try a wide angle because some of the corners get cut off.
Open to suggestions on how to improve. This was a 03:00.93 laptime.

That is just an awkward angle to see a lot of what is going on. It is hard to tell if you are truly hitting the apex/outside edges of the track with your tires.

11 slow down a little more and hit that curb to give you a straighter line/more throttle earlier for 12.

Overall it is hard to tell but I feel like you are pushing on the brakes earlier and longer to get down to the speed you want for a turn vs pressing firmly harder for a shorter period of time. Which might explain why you had a lot more heat in the brakes. Your car/front tires should be able to take a higher G load. Look at into turn 11 you are only hitting .5g on braking. Maybe this is just not accurate reporting of the sensors but something to consider.
 

sickmint79

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I was boiling everything yesterday. Definitely had a bit of a brown pants moment going into turn 11 where the pedal went really soft around my 6th or 7th lap. Also running the motul 600. My coolant was boiling as well on the line that returns to the top of he reservoir.
this is one of the most enjoyable parts about owning a 2800 lb light boi. put in some new fluid at the start of the season and then never worry and just run all summer. soft (or gone) definitely blows. i used what little brake i had left one day at autobahn to stay on with an sti some time ago, and pedal to the floor the brakes did absolutely nothing after that.
 

OmniGLH

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Thats awesome. I did my PB yesterday as well, 2:40.27
Unfortunately I also found out that you CAN boil Motul RBF600 if you try hard enough.
That's a wickedly impressive lap for a Charger. Got any video to back it up?

And RBF is garbage. Not at all surprised to hear you cooked it. I used to be sponsored by Motul years ago, got all kinds of free Motul fluid... I bailed on running their RBF. (They make great oil though...)

SRF (if you can find it nowadays) or Endless are really the only two options worth it especially once you've made it to the "intermediate" group.
 

JAhmed

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That's a wickedly impressive lap for a Charger. Got any video to back it up?

And RBF is garbage. Not at all surprised to hear you cooked it. I used to be sponsored by Motul years ago, got all kinds of free Motul fluid... I bailed on running their RBF. (They make great oil though...)

SRF (if you can find it nowadays) or Endless are really the only two options worth it especially once you've made it to the "intermediate" group.
Thank you. No video unfortunately, just data off Harry's Laptimer. It was relatively busy in the advanced group for a LAPS Monday, but got a few good laps in...2:40.71, 2:40.66, 2:40.49 and finally my best of 2:40.27. Most of the other laps all over the 2:4x range.

Definitely learned my lesson in terms of using SRF, but honestly after Monday I am not sure I want to continue tracking the Charger...doing research into a Radical for 2021 :unsure:
 

OmniGLH

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Wow almost to the 39s....

I’ll have to do a ride along next time you’re out there. What kind of times were you doing in your Carrera?
 

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