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03-20-2006, 08:04 PM | #1 |
Scooby Newbie
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E. Canada
Location: Toronto
Vehicle:2004 PSM WRX Cobb Stage 2 biotch! |
Stage 2 - 93 vs 91?
Ok, I searched and can't find anyone commenting on this.
I know Cobb states a 5hp increase when going to 93 octane from 91, but have you guys noticed much of a difference in seat of the pants feel or on the dyno? Is it worth the extra few cents a litre/gallon? What about going to 94, that seems to be the only available octane above 91 around my area. Thanks, Matt
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03-20-2006, 08:19 PM | #2 | |
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03-21-2006, 03:23 PM | #3 |
Scooby Newbie
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Chapter/Region:
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Vehicle:2004 PSM WRX Cobb Stage 2 biotch! |
Anybody with data to backup this claim?
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03-22-2006, 05:34 PM | #4 | |
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03-22-2006, 05:49 PM | #5 |
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Vehicle:<--- Hot Donuts Now |
most people dont have a choice.... its either 89 or 93... there is no 91 in SC that ive seen.
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03-22-2006, 06:01 PM | #6 |
Scooby Newbie
Member#: 80169
Join Date: Jan 2005
Chapter/Region:
E. Canada
Location: Toronto
Vehicle:2004 PSM WRX Cobb Stage 2 biotch! |
Really, that sucks.
We have 89,91, and 94. 93 I haven't seen in Ontario. |
03-22-2006, 09:16 PM | #7 |
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you should be running the highest octane possible. especially when you are running an off the shelf tune.
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03-22-2006, 09:41 PM | #8 | |
Scooby Newbie
Member#: 80169
Join Date: Jan 2005
Chapter/Region:
E. Canada
Location: Toronto
Vehicle:2004 PSM WRX Cobb Stage 2 biotch! |
Quote:
Or am I ok running a 93 octane map with 94 in the tank? |
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03-22-2006, 11:29 PM | #9 |
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You're fine running 94 on the 93 map.
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03-23-2006, 09:07 AM | #10 | |
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yes... its a little extra insurance. |
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03-25-2006, 01:32 PM | #11 |
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Vehicle:06 WRX WRB |
Higher octane will prevent detonation. So you want to use the highest possible. ESP. since its an OTS map. Use 94 octane with the 93 map.
Power wise I DOUBT (not positive) you can "feel" the difference. But the engine will know the difference, its more of an engine operating safely thing rather then feel in the seat thing. |
03-25-2006, 02:22 PM | #12 |
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Location: St. Albert, Alberta
Vehicle:2006 Big 16G WRX Addicted to Blue |
I have ran the 91 oct map (with 91 oct fuel) and the 93 oct map (with 94 oct fuel)......I ran each for a week and couldnt tell the difference between the two. I think the only difference you see is on a dyno.
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03-25-2006, 07:20 PM | #13 |
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Vehicle:OK buy Nates beans westcoastroasting.com |
...jesus....the 91 map was a LOT less powerful than the 93 map.........and the ST only comes with 91 base maps so ya gotta tune up a base map as a realtime map.
I just got done tuning a bit with ST and the car is quick now |
03-28-2006, 03:55 PM | #14 | |
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03-28-2006, 07:19 PM | #15 | |
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Vehicle:OK buy Nates beans westcoastroasting.com |
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.....deeeeeeeeeeeeeeeeeeewwwwwwwwwwwwwwwwwd......s ome places DON'T have 93 |
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04-03-2006, 01:50 PM | #16 | |
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4EVO2NV is full of sh&*!! I wouldn't trust him with my pet turtle.. |
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