Laguna Seca - 86 Challenge Round 5 - PB Lap
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- čas přidán 10. 09. 2024
- First time at Laguna in dry conditions. My pace is pretty good until turn 5-6 and then I recover by exit of 9. If I can fix those next time out I can get into the 1:46s based on comparison of data to other drivers in stock class. This was good enough for P5 out of 12 in 86 Challenge Stock class today.
Thanks to @studiousGR86 for the thumbnail photo!
Setup:
2022 Subaru BRZ in 86 Challenge Stock Class
Parts:
• GT Radial SX2 225/45R17
• 949 Racing 6UL 17x8 ET40 wheels
• Perrin 7mm front wheel spacers
• Jackson Racing sandwich plate with custom hoses and 9-20 Setrab cooler core
• GR Performance Exhaust
• Mobil 1 0W40 FS
• Ansix Auto “The Drop” shift knob
Brakes:
• AP Racing/Essex Endurance Front BBK with Ferrodo DS Uno pads
• Stock rear brakes with Carbotech XP12 pads
Suspension:
• Stock BRZ coilovers
• Pedders Offset Strut Mounts and top camber bolts
• 15mm GR86 rear sway bar
Instrumentation:
• Aim Solo 2 DL connected to ASC CAN-bus
• Low Dollar Motorsports Oil Pressure sensor and CANMIM data injector by @nostreetracing86
Alignment:
Front: -2.5° camber, 6° caster, 0° Toe
Rear: -1.5° camber, .07° Total toe in
A/V:
• GoPro Hero 10 Black
• GoPro Pro 3.5mm Mic Adapter
• Ansix GoPro camera mount
• USB-C Data Blocker
• 2x Polsen PL-4 Lavalier Microphone
Beautiful! Love to see it. 😁
Great drive Brian!!!
Very nice 🏁 BRZ86 💪🏼🛞💨💨💨
Awesome awesome driving!!!
Thank you!
Great effort!! Any word on the availability of the new engine baffle?
Verus has a new video with a first look and updates: czcams.com/video/DIMl-jgNzZM/video.htmlsi=dQS4q9nXBbgTp7zr
At this point timing is still ASAP but nothing specific. We’ll be testing soon.
@@900BRZ Many thanks!
are you running baffle with overfill? the pressure seems pretty stable, or might be the fact of less right turns
Yeah running the first version of the high capacity baffle with a small overfill 1/3-1/2 liter. Pressures look good so not adding more oil!
Couple random questions: do you think the GR86 premium duckbill meaningfully reduces lift at high speeds or is it just a cosmetic enhancement for you? Also, do you daily the SX2s? If so, how do you like them? Im curious as to how they compare to max performance summer street tires like the PS4s. I've heard they're a step below other 200tw options like the RS4, but I wonder how they compare to top end street/daily oriented tires.
Ducktail: I do believe this increases high speed stability and I think it’s worth adding. Basically everyone in my track group believes it’s functional.
SX2: yes I daily them but I don’t drive the car on a regular commute since I WFH. They have stiffer sidewalks than the PS4 and can handle heat on track much better. RS4 or V730 should be significantly grippier and also handle heat well. Only issue on street for SX2 is they have way less grip than PS4 in the wet. So you just have to leave a little extra margin. At Laguna in the wet, PS4 are probably 2 seconds a lap faster. Overall SX2 are a great tire for learning with approachable on-limit behavior and they’re totally fine to run on the street. And cheap!
@@900BRZ glad to hear it on the ducktail and the SX2s. I'm currently running Yokohama v601s on my BRZ and loving them, but I'm always trying to get a better understanding of the niche each tire fills. Do you think you'd choose a different tire if it weren't for the SX2 being the spec tire for the socal 86 cup or whatever it's called?
Yeah I’m interested to try out a v730 or RS4. Would probably try v730 with more camber all around. Also will likely move to a class that allows coilovers next year so that will make grippier tires more controllable.
Are the outside shoulders of your tires getting worn at a much higher rate than the inside? Im running over -3 in the front with coilovers and am still finding i need more, probably closer to -4, to even the tire wear. I am running some sticky 200tw though.
More spring rate? What tires are you running?
Yeah -2.5 deg of camber front and -1.5 deg is not really enough even on SX2. Definitely have excess shoulder wear. In practice my alignment is not quite as those limits (set by the Stock class rules) so I want to change my setup slightly to actually max it out. -4 deg is not unusual for this platform on 200 tw.
I run even wear at -4. On RCE T2s 7k square.
No oil pressure drops! Are you running the Verus experimental oil pan?
Yeah, I’m still running the same pan from the last video in the oil pressure series. It’s working great and I’m thinking the next iteration will be even better.
@@900BRZ
Heck yeah! Thanks for all the efforts with testing!
@@900BRZ Is this in combination with an overfill?
Small overfill, probably 1/3-1/2 liter
@@900BRZ Sweet, looks like the issue is essentially fixed.
Nice lap! Shame about 5-6
Heyo!!! New Video guys!
Just an onboard this time!
Surprised they let you out on track with a cracked front windshield.
I’m not aware of this as an actual safety issue given modern windows are laminated from multiple layers of glass. Open to being proved wrong though.
whats your intake setup? doesnt sound stock.
Description: GR Performance exhaust.
It just sounds different because I have a mic in the rear and one in the engine bay and I’m mixing them.
Not the exhaust note, the induction note. He had a mic in the engine room, explains why.
Ah that explains it. Thank you.
@@900BRZMind sharing some details on your audio/video setup? Mic location, specific mics, audio recorder?
I’ve been working on doing a similar setup with 2 mics using Rode VideoMicros. My exhaust mic gets pretty good audio but my intake one just picks up mostly engine/injector noise.