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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 04-19-2021, 09:07 AM   #99
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So what pressures did you end up at?
On my 255 A052's, I run 29 psi up front and 27 psi in the rear.
Ended up at 26f/25r hot and it felt great (245's, I was worried about rubbing so went with the smaller size to start)

I added some camber, currently running -4* up front and -2.5* in the rear.
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Old 04-19-2021, 11:12 AM   #100
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I run mine at 29/27 too, -4.5* camber front and about -2.2* in back.

It's a balance of overworking the shoulder and outright speed. For non-national events I try to run higher pressures to prolong life. Then I get to 3rd runs and I'm like "f*** it" and dump a couple psi to try to win lol.
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Old 04-19-2021, 01:38 PM   #101
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My co-driver and I had our first event of the season yesterday.

We tried out 9k front, 11k rear springs on the RaceComp Engineering T3s. It worked great.

I had the Karcepts front bar on 0/0 and the rear Mann Engineering bar on medium.

It was about 55 degrees, using AO52 tires on asphalt at a local airport, so pretty smooth tarmac. There was one section that was in a parking lot that had wavy pavement, in a accelerating zone the first day, then a braking zone the second day. Other cars had issues, but our setup worked really well. Inside the car felt good, but outside you could see the oscillating suspension.

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Old 04-19-2021, 03:24 PM   #102
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Originally Posted by PLX92 View Post
Ended up at 26f/25r hot and it felt great (245's, I was worried about rubbing so went with the smaller size to start)

I added some camber, currently running -4* up front and -2.5* in the rear.
damn is this car a daily driver or mostly a track/AutoX toy?
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Old 04-19-2021, 03:33 PM   #103
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damn is this car a daily driver or mostly a track/AutoX toy?
Autocross/track toy at the point
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Old 04-19-2021, 03:50 PM   #104
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FWIW for everyone new to the Yok gain, you have about a 4 PSI range of operating window where the tires don't get any faster or slower yet change the dynamics of the car.
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Old 04-19-2021, 03:57 PM   #105
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I'm kind of surprised to see how low you guys are running the A052's. With the soft sidewalls, I figured higher PSI would be needed on those. Good to know though.
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Old 04-20-2021, 04:19 PM   #106
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Any of you guys running Nankang CR1's this season? A lot of other 200TW tires out of stock right now, so I'm giving them a hard look. Based on the sizes available, I think they're SCCA legal?
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Old 04-20-2021, 07:10 PM   #107
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Any of you guys running Nankang CR1's this season? A lot of other 200TW tires out of stock right now, so I'm giving them a hard look. Based on the sizes available, I think they're SCCA legal?
Im on the CR1s. Running 30f/28r for my first. I'll try dropping pressures next event.
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Old 04-21-2021, 07:48 AM   #108
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I've been down and not able to travel anywhere the early part of this season, so I've messed up and didn't buy tires.

Not really sure how I'm going to deal with Spring Nats, etc, etc, etc.
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Old 04-21-2021, 08:19 AM   #109
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The tire supply shortage is quite serious now for autocross tires. I was told Monday that if you don't have a set of AO52's now,you won't be getting any before September. Time to track down some Kumho's, Nankang's, Falkens, BFG's. Running lesser tires for local events to preserve our national event tires.
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Old 04-21-2021, 09:22 AM   #110
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The tire supply shortage is quite serious now for autocross tires. I was told Monday that if you don't have a set of AO52's now,you won't be getting any before September. Time to track down some Kumho's, Nankang's, Falkens, BFG's. Running lesser tires for local events to preserve our national event tires.
I was told more in the 2-3 month range, but who knows.

I could skip locals and make my set from last year last that period, but I'm not super excited about any of the options available.

Did the limited prep DSP thing go through?
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Old 04-21-2021, 11:04 AM   #111
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Yes it did, if you have a spare set of Hoosiers, go have fun!
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Old 04-21-2021, 11:11 AM   #112
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Yes it did, if you have a spare set of Hoosiers, go have fun!
I don't, but if I have to buy a set of tires to not necessarily be competitive, might as well go as fast as I can.
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