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Old 03-20-2006, 08:04 PM   #1
WrexT
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Cobb Stage 2 biotch!

Default 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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Old 03-20-2006, 08:19 PM   #2
SketchINoc
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Quote:
Originally Posted by WrexT
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
the 93 octane map makes much more power.
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Old 03-21-2006, 03:23 PM   #3
WrexT
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Cobb Stage 2 biotch!

Default

Anybody with data to backup this claim?
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Old 03-22-2006, 05:34 PM   #4
Erexxx
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Quote:
Originally Posted by WrexT
Anybody with data to backup this claim?
bump for this i wanna know too
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Old 03-22-2006, 05:49 PM   #5
-Kevlar-
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most people dont have a choice.... its either 89 or 93... there is no 91 in SC that ive seen.
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Old 03-22-2006, 06:01 PM   #6
WrexT
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Default

Really, that sucks.

We have 89,91, and 94.

93 I haven't seen in Ontario.
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Old 03-22-2006, 09:16 PM   #7
4EVO2NV
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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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Old 03-22-2006, 09:41 PM   #8
WrexT
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Default

Quote:
Originally Posted by 4EVO2NV
you should be running the highest octane possible. especially when you are running an off the shelf tune.
Do you mean I should be running a 91 octane map with 94 in the tank?
Or am I ok running a 93 octane map with 94 in the tank?
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Old 03-22-2006, 11:29 PM   #9
scrapin'
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You're fine running 94 on the 93 map.
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Old 03-23-2006, 09:07 AM   #10
-Kevlar-
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Quote:
Originally Posted by scrapin'
You're fine running 94 on the 93 map.

yes... its a little extra insurance.
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Old 03-25-2006, 01:32 PM   #11
CynicX
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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.
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Old 03-25-2006, 02:22 PM   #12
Flexx999
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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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Old 03-25-2006, 07:20 PM   #13
Uncle Scotty
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...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
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Old 03-28-2006, 03:55 PM   #14
hornyturbo
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Quote:
Originally Posted by WrexT
Anybody with data to backup this claim?
no, but i would choose 93 over 91 anyday.. how much are u saving? 2 bucks?
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Old 03-28-2006, 07:19 PM   #15
Uncle Scotty
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Quote:
Originally Posted by HoRnYTuRbO
no, but i would choose 93 over 91 anyday.. how much are u saving? 2 bucks?

.....deeeeeeeeeeeeeeeeeeewwwwwwwwwwwwwwwwwd......s ome places DON'T have 93
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Old 04-03-2006, 01:50 PM   #16
ocxbadboy
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Quote:
Originally Posted by 4EVO2NV
you should be running the highest octane possible. especially when you are running an off the shelf tune.

4EVO2NV is full of sh&*!! I wouldn't trust him with my pet turtle..
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