What octane fuel
- Thread starter gatorboy6
- Start date
A stock Hayabusa has a compression ratio of 11:1. It requires 87 octane.
The GSXR 600, 750 & 1000 all have a compression ratio of 12.5:1 and requires 93 octane.
No need to waste your money on higher octane fuel with a bike that doesn't need or require it with the lower compression ratio.
The GSXR 600, 750 & 1000 all have a compression ratio of 12.5:1 and requires 93 octane.
No need to waste your money on higher octane fuel with a bike that doesn't need or require it with the lower compression ratio.
RaveCrusader
Registered
The higher octane burns cleaner though, less crap scoring your engine. I put the highest octane in all my bikes, always have.
But I am not a mechanic.
But I am not a mechanic.
The Person who told you to use race fuel has his head up his umm.... rectum.
It's a long discussed and debated topic but it boils down to this, for a stock busa 87-89 octane is all you will ever need, it burns a little hotter and a little cleaner, produces more power and is all ya need.
The higher Octane fuels are pretty much useless in a stock motor, and can in fact loose you power due to the slower burn. I was plenty skeptical of using 87 octane in a Busa motor, but I changed from 93 to 89 and I noticed an improvement in power based on my (Mod71 SOTP Dyno), and better fuel milage.
No Foolin.
It's a long discussed and debated topic but it boils down to this, for a stock busa 87-89 octane is all you will ever need, it burns a little hotter and a little cleaner, produces more power and is all ya need.
The higher Octane fuels are pretty much useless in a stock motor, and can in fact loose you power due to the slower burn. I was plenty skeptical of using 87 octane in a Busa motor, but I changed from 93 to 89 and I noticed an improvement in power based on my (Mod71 SOTP Dyno), and better fuel milage.
No Foolin.
RaveCrusader
Registered
I have been doing some research. I still need to do some checking but everything I have seen shows a compression rations of 9.3 : 1 or less are good with 87 octane but an engine with 11 : 1 should get 91 to 93.
I have not found anything 100% verifiable or exclusively for Motorcycles. I am still looking.
I am no expert, so take my findings with a degree of possible error. When I find something reliable and definitive I will post it up with a link. (Yes, I am an uber nerd.)
I have not found anything 100% verifiable or exclusively for Motorcycles. I am still looking.
I am no expert, so take my findings with a degree of possible error. When I find something reliable and definitive I will post it up with a link. (Yes, I am an uber nerd.)
Tried all 87, 89, and 93 found no diff so I just use 87.
About 119 I think with 12 lbs of boost.
The manual says minimum 87 octane. -Minimum- is the keyword there. If you go under 87 you may cause engine damage. Any standard pump fuel at with an octane rating of at least 87 is usable.
CorrodedAlien
Registered
Hell I'd run 81 if it was still made, just to see.
I use whatever the lowest price gas is and then run cleaner every oil change and try not tu use only one brand of gas
just my $0.02
I use whatever the lowest price gas is and then run cleaner every oil change and try not tu use only one brand of gas
just my $0.02
Better performance too....
That stuff makes me dizzy and my nose burn all the way over here...
Rev,I think youre thinking about alcohol,this stuff smells good! The alcohol however is irritating to the eyes and nose.
Yeah it has a sweet smell,but the dang alcohol is unbearable,burns your eyes and nose.I've used the scents as well from summit,pretty cool pulling up to the line smelling like grapes or strawberries coming from your exhaust! LOL!
LiBusa
Registered
I have a 03 Busa with a TRE and no other engine Mods. I have run 87 Octane for the last 4,000 miles and had the Bike Dynoed at 181 MPH and 155.9 HP at the rear wheel running 87 octane.
I ensure the Gas is a brand name, the station looks clean so maybe the gas pump filters are too and that no tanker is there off loading gas and churning up all the junk in the ground gas tanks.
I ensure the Gas is a brand name, the station looks clean so maybe the gas pump filters are too and that no tanker is there off loading gas and churning up all the junk in the ground gas tanks.
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