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104 Octance Boost?
Sportster Models
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Apr 4th, 2008, 12:50 PM
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#1 |
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Start The Engine
Ride: 2007 Sportster XL883L
Join Date: Jan 26th, 2008
Posts: 23
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104 Octance Boost?
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Apr 4th, 2008, 01:00 PM
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#2 |
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Frozen Account
Ride: 07 Road King
Join Date: Jun 21st, 2007
Posts: 25,999
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Re: 104 Octance Boost?
Higher than needed octane will have little to no benefit other than emptying your wallet. The higher octanes burn slower and will usually run a bit hotter.
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Apr 4th, 2008, 01:11 PM
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#3 |
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Play The Throttle
Ride: 1946 Knuclehead
Join Date: Feb 27th, 2008
Posts: 295
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Re: 104 Octance Boost?
works great if your running 12 or 13:1 compression but for standard 9.2's just a waste of money.
__________________
Flashback 1946 Knuclehead,1996 Sportster,2008 FLHT If you have to ask...go buy another SUV |
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Apr 4th, 2008, 02:13 PM
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#4 |
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Warming The Wheels
Ride: 2008 XL1200N Nightster
Join Date: Dec 7th, 2007
Location: Newark, DE
Posts: 105
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Re: 104 Octance Boost?
and we're already getting raped at the pumps as it is...
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Apr 4th, 2008, 03:00 PM
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#5 |
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Play The Throttle
Ride: 2008 Sportster 1200c
Join Date: Mar 25th, 2008
Posts: 253
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Re: 104 Octance Boost?
Contrary to how high octane gas is marketed, it only has benefit for engines designed to burn it. High compression engines need a slower burning fuel so it will not pre ignite, Higher Octane rated gasolines burn slower. Pre ignition ping will destroy an engine so it is important to run proper fuel in the engine. However, Over kill on octane simply will do no good, sometimes it can even burn black.
The gasoline we buy these days does leave deposits on the intake valves and on piston heads and heads etc. It is wise to run some Seafoam or Marvel Myster Oil in the tank once in a while. MMO has been around for many years and does work very well. Seafoam is also an excellent product. |
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Apr 4th, 2008, 05:32 PM
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#6 |
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Start The Engine
Ride: 2008 Sportster XL1200N
Join Date: Feb 25th, 2008
Location: Greenville Texas
Posts: 21
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Re: 104 Octance Boost?
Never used SeaFoam, but I have been using MM Oil for over 30 years. It is great.
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Apr 4th, 2008, 08:13 PM
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#7 |
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Frozen Account
Ride: 07 Road King
Join Date: Jun 21st, 2007
Posts: 25,999
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Re: 104 Octance Boost?
Quote: Originally Posted by smitty901
View Post
Seems yall nailed it .
You could run by the airport and pick up some 110 or 130 av gas. Smitty, that would burn the heads off the valves 
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Apr 4th, 2008, 09:28 PM
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#8 |
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Frozen Account
Ride: 07 Road King
Join Date: Jun 21st, 2007
Posts: 25,999
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Re: 104 Octance Boost?
There's 110 available in some stations as racing fuel but I remember when Sunoco had over 100 octane available at the regular pumps.Oh the good old days!
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Apr 4th, 2008, 09:45 PM
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#9 |
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Frozen Account
Ride: 07 Road King
Join Date: Jun 21st, 2007
Posts: 25,999
My Mood:
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Re: 104 Octance Boost?
I hear ya there, worked on C119 and C124 globemasters, they had to flap their wings to get off the ground
Last edited by glider; Jan 24th, 2009 at 09:48 PM. |
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Apr 4th, 2008, 10:21 PM
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#10 |
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Frozen Account
Ride: 07 Road King
Join Date: Jun 21st, 2007
Posts: 25,999
My Mood:
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Re: 104 Octance Boost?
These had four P&W 4360 engines with 4 mags each that to be in sync, 28 cylinders each engine,dual plugged, what a joy! NOT!
Just like the harley engines 
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