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Old 10-15-2011, 10:06 PM   #1
jmikeumo
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Member#: 293516
Join Date: Sep 2011
Chapter/Region: NESIC
Vehicle:
2004 WRX Wagon
Platinum Silver Metallic

Default 93 octane on stage 1 91 octane tune

What is the impact of running 93 octane gas through a 2004 WRX that has a Cobb Stage 1 91 octane tune on it? Negative, positive?
Thanks
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Old 10-16-2011, 09:08 AM   #2
Cobb Tuning
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Location: Austin, DFW, Portland, SOCAL
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Quote:
Originally Posted by jmikeumo View Post
What is the impact of running 93 octane gas through a 2004 WRX that has a Cobb Stage 1 91 octane tune on it? Negative, positive?
Thanks
That is just fine. It would be beneficial in that it would give you more knock resistance. The downside would be a little less power (compared to running the 93 map with 93 octane).

Bill
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Old 10-18-2011, 10:26 PM   #3
nashcarr
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Join Date: Nov 2006
Chapter/Region: MWSOC
Location: Ohio
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2010 STi
SSM

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Dear Cobb,

What would the power leve (hp/trq) difference be between the 91 and 93 maps?
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Old 10-19-2011, 09:31 AM   #4
Cobb Tuning
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Originally Posted by nashcarr View Post
Dear Cobb,

What would the power leve (hp/trq) difference be between the 91 and 93 maps?
Roughly a 5 HP peak difference between the 91 and 93 with our latest maps.

Bill
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