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#1
13-06-2013, 11:27 AM
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Tyre pressure for AD08's on race/track day
I'll be having a crack at the state sprint series round on the 23rd of this month in my 10sti.
Car has KW-V3's running a pretty firm set up and Yoki AD08's. I have spoken to John at WWorld where I purchased the tyres and he has recommended running as low as 29-30psi all round while tyres are cold with the aim for them to heat up and expand to approximately 34psi for on track hot/pressure. Was hoping for some feedback from those who might have run these tyres or similar and experimented with their pressures.
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Bye bye betty blue. Hello F6. Last edited by nick73; 09-12-2013 at 10:03 AM. 
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#2
13-06-2013, 11:51 AM
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Did the same series this year and last...ran 34 hot on my AD08s. Also best time around Wanners was with 34 hot so i'd say that was a good recommendation.
I usually set them to 34 at a petrol station that morning and just monitor with a tyre pressure gauge after every run.
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hello my name is tommy i don't have a Subaru Last edited by kid; 13-06-2013 at 11:53 AM.
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#4
13-06-2013, 12:27 PM
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I was running around 34psi at the No limits day initially then dropped the pressure to around 30psi... took 2 seconds off my lap times.... seemed to be perfect.
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2016 Levorg GT-S Old man spec.
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#5
13-06-2013, 10:28 PM
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When I used the ad08 for a few years I ran them 30 psi on the track and 34 street as others have said good tire when on budget race/street tire
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race tape y pipe running .05 bar till spares turn up.
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#6
14-06-2013, 11:12 AM
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Does anyone use direzza z1 star spec? The sticker on the car recommend 34psi front and 28 rear for hatch, should I stick with this or use 34psi all around? Thanks.
PS: The weight distribution on 3gen sti hatch is about 65/35.
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MY08 STI 422whp at 1.5bar on E85, built by Diversion Garage, assembled and tuned by EvoR Update from new owner: 375whp at 1.4bar on 98, at Tokyo Motorsport
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#7
14-06-2013, 02:59 PM
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Running 36psi hot in the AD08's for the sprint series, but that is in the 86, not the WRX.
Buy a decent tyre gauge. Went through 2 cheap ones, before getting a semi-decent one from Go Gear. Made life a lot easier :-)
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MY11 WRX + 86
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| Tags |
| ad08, day, pressure, race or track, tyre |
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