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Old 21 February 2006, 06:19 AM
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norcalrallyist
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Default Ver 1 Sti detune question

Ive got a JDM sti ver1 clip that Im transplanting into a US impreza. The problem is, here in California we only have 91 octane fuel. So how do I detune so I dont hurt my car?
Old 21 February 2006, 09:23 AM
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jonny gav
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isn't your fuel 91 mon not ron????

here is a table to help ypu out, looks like your 91 mon is the same as our 99ron

hummmmmmm......can't paste a table in here!

Last edited by jonny gav; 21 February 2006 at 09:33 AM.
Old 21 February 2006, 09:31 AM
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jonny gav
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RON = MON
90 = 83
92 = 85
95 = 87
96 = 88
98 = 90
100 = 91.5
105 = 95
110 = 99
Old 21 February 2006, 09:21 PM
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dutchScoobydriver
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octane booster every time its too low the us fuel
Old 21 February 2006, 09:29 PM
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jonny gav
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Lightbulb

so you are saying 99 ron or 91 mon isn't good enough for a v1 sti !!!
Old 22 February 2006, 02:44 AM
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kbahus
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There are several v1/v2 ej20g guys running 91 in California. Give the ecu some time to learn and enjoy.
Old 22 February 2006, 11:10 PM
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norcalrallyist
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I found this article and thought id share if anyone cares

http://en.wikipedia.org/wiki/Octane_rating

Ours is an average between ron and mon R+M\2 I always wondered what that was
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