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91 octane users!

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Old 10-28-2009, 03:32 AM
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V2Rocket
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Default 91 octane users!

Can anyone who can only locally find 91 octane gasoline tell me what the most performance they've gotten out of their car is?

Things I'd like to take into account include:
- Static compression ratio (8:1? higher?)
- Max Boost pressure (without knock counts) and from what turbo, at what RPM and tuned in what gear
- Cam selection (stock, NA, custom?)
- Average ambient temperature in your area
- Water thermostat opening temperature
- Oil thermostat opening temperature
- Exhaust setup
- MAF? AFM? What software (stock or a chip?)?
- Ignition timing (how much retard?) What plugs?
- Injector size?
- Anything else you think relevant

Thanks!
Old 10-28-2009, 03:55 AM
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alxdgr8
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Glad we don't have that pisswater here in the midwest. 93 (or even sunoco 94) all the way!
Old 10-28-2009, 03:23 PM
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V2Rocket
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anyone?
Old 10-28-2009, 06:32 PM
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Keithr726
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18psi is the tops for me, Russel warned me when he made my chips.
Old 10-28-2009, 06:42 PM
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Darwantae951

 
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I only ran 16 when I was using 91 up in the high desert area (29 Palms/Yucca Valley)
Old 10-28-2009, 07:19 PM
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KuHL 951
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Originally Posted by ModdedEverything951S
I only ran 16 when I was using 91 up in the high desert area (29 Palms/Yucca Valley)

Same here, 16 psi was my safety margin for 91 oct. with a Vitesse chip and shimmed WG. When I mixed in xylene I could pull 19 even in hot weather.
Old 10-28-2009, 07:31 PM
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951_RS
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I don't have a lot of experience having my 951 modded when I lived in cali, but my gti ran 23 psi on 91 lol.
I had stock turbo and ran 12 psi though with my 951, hardly ground breaking.
Old 10-28-2009, 08:47 PM
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V2Rocket
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Originally Posted by Keithr726
18psi is the tops for me, Russel warned me when he made my chips.
Originally Posted by ModdedEverything951S
I only ran 16 when I was using 91 up in the high desert area (29 Palms/Yucca Valley)
Originally Posted by KuHL 951
Same here, 16 psi was my safety margin for 91 oct. with a Vitesse chip and shimmed WG. When I mixed in xylene I could pull 19 even in hot weather.
any idea what the ignition specs are in those chips?

darwin, what turbo did you use, what chip, etc?
Old 10-28-2009, 09:43 PM
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KuHL 951
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Originally Posted by V2Rocket_aka944
any idea what the ignition specs are in those chips?
Sorry can't help you on ignition specs, JV would know though. Mine were mapped for a K26-8 w/ 3.0bar FPR.
Old 10-29-2009, 09:11 AM
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Darwantae951

 
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I was running a K26/8 with MaxHP chips. Can't tell you exact specs on ignition or anything.



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