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Old 04-18-2012, 07:25 AM   #61
bluewave18
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Quote:
Originally Posted by ZXALAN View Post
Tell me you're not running 87 oct in that 13.5-1 1441...

Especially murpheys...
You really think my compression is higher than stock? LOL
You must have missed where I said I run higher since the build.
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Old 04-18-2012, 08:11 AM   #62
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Quote:
Originally Posted by Benne View Post
i mean think about it. We have performance bikes brah. haha, So i used Noventa y tres (93) all the time.
That comment is so full of stupid i don't even know where to begin...
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Old 04-18-2012, 08:20 AM   #63
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Quote:
Originally Posted by 675Raisinator View Post
heres the deal- when you fill up at most stations there will still be a good deal of gasoline in the line of the previous gasoline used to fill...
Common misconception disproved more than once. At most, you're looking at a cup of fuel.
Quote:
Originally Posted by 675Raisinator View Post
most folks use 87 so if you fill up a 4 gallon bike with 89 oct a not insignificant quantity of fuel you will be paying extra for is just standard 87 oct material ...
Again, not true. The flow sensor that calculates what you're pumping is located a bit further back down the hose than the very tip.
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Originally Posted by 675Raisinator View Post
octane is all about knocking ....so if you run 87 and it doesnt knock good for you if it does knock move to 89 its that simple ... my car calls for 89 and i run 87 .... it has only knocked once and i dont thnik that justifies the added price...
Actually - it does justify it. Your knock sensor is retarding the timing to prevent pre-detonation which is robbing you of power and mileage. You're very likely spending more in lost mileage than you would spend for the 89 octane fuel. HOWEVER, and this is a critical caveat, it depends on what method the owners manual is using to calculate the octane. If the owners manual says 89 RON, then using 87 is probably just fine. The reason for that is the RON rating is typically higher than the R+M/2 method used for gas stations.
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Originally Posted by 675Raisinator View Post
the big question is how to avoid ethanol ... would spend better time/effort looking for stations that dont blend as much ethanol ...
Good luck with that. Not a single one in the Houston metro. I'm not even sure you have one within 2 tanks of Houston in any direction.
Quote:
Originally Posted by 675Raisinator View Post
i know a couple of valero stations that dont splash as much so u get a more pure blend of gasoline
Still 10% or so - especially from Valero...
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Old 04-19-2012, 02:37 AM   #64
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d1fc5a6d

This is on an 01 GSXR1000 with 12.0 compression. My bike has been custom mapped and the tune is dead on... I will most definitely get some pinging at slow speeds (like pulling away from a light in 1st gear) if I run anything less then 91 oct. I have tested this several times..

No way would I run a bike with 12.0-1 compression or higher on 87 oct...especially as weak as fuel is today and the ethanol blended BS... That's just making it worse. Remember you won't always "hear" the pinging (detonation)...that is more of a severe case if you can actually hear it... Meanwhile it's pounding the out of the rod bearings, rocking the pistons in the bores which is hard on the rings...not to mention the additional heat created from quick burning fuel will take its toll on the rings as well...

Lastly when you buy premium, not only do you get higher octane, but you also get better additives/detergents which helps with the mess that the ethanol creates...

So go ahead and save that $2 per tank and run your 87 oct....you may never hurt anything at all.... But if you do, you will have wished you ran a better quality fuel. These are high performance oriented engines... Not Priuses or Smart cars.
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Old 04-19-2012, 03:05 AM   #65
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Quote:
Originally Posted by RACER X View Post
what does the owners manuel say
I don't have an owners manual for my 07 cbr600rr. Where can I find out what the factory recommends?
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Old 04-19-2012, 03:08 AM   #66
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Quote:
Originally Posted by po-po 5.0 View Post
It actually hurts power production, and 60 cents a gallon adds up if your ride a lot.
... so I rode around for 8000 miles just wasting money on V-Power, and wasting performance
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Old 04-19-2012, 03:17 AM   #67
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Originally Posted by theManofRussia View Post
... so I rode around for 8000 miles just wasting money on V-Power, and wasting performance


No you rode around protecting your investment.. You did not lose any performance either. While it is true you only need to run enough octane to suppress detonation, running a few points more octane will not hinder performance... We are not talking about heavy specific gravity race fuels here...(slow burning).

That being said, your 600 would probably run fine on 87 oct but it's high compression appreciates the 93 octane..
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Old 04-19-2012, 05:22 AM   #68
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Quote:
Originally Posted by theManofRussia View Post
I don't have an owners manual for my 07 cbr600rr. Where can I find out what the factory recommends?
Order a manual. I ordered a second manual along with a shop manual for my bike. Pretty sure your CBR requires premium gas, mine do.
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Old 04-19-2012, 06:59 AM   #69
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Poblem found ?? Lol
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Old 04-19-2012, 07:33 AM   #70
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I wish that was the problem
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Old 04-19-2012, 08:14 AM   #71
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Quote:
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... so I rode around for 8000 miles just wasting money on V-Power, and wasting performance
I have an 07, calls for premium
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