Mixing "race fuel" with pump gas-

Started by Radar, November 19, 2010, 10:28:11 PM

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Radar

My local bike shop sells fairly high octane fuel in 5 gallon containers. The local gas station carries 91 as premium.  (probably with ethanol)

Do you accept pump gas as all there is, or do you go through the hassle of mixing.

The owner's manual calls for 95 "at least."

With the loud pipes and helmet, I don't think I'd hear any early detonation...

How do Ducati folks deal with the issue?

Thanks-
S4R and stuff-

Kopfjager

Woohoohoohoo! Two personal records! For breath holding and number of sharks shot in the face.

Radar

S4R and stuff-

Turf

Quote from: Radar on November 19, 2010, 10:42:06 PM
Ron?

What's that?

different octane rating than US, unless you've high comp pistons or a sbk then 87 is all you need to run
I may not have gone where I intended to go, but I think I have ended up where I needed to be.

Kopfjager

#4
Quote from: Radar on November 19, 2010, 10:42:06 PM
Ron?

What's that?

Research Octane Number. Used in Europe
Woohoohoohoo! Two personal records! For breath holding and number of sharks shot in the face.

Radar

Interesting... I know a lorry is a truck, and an elevator is a lift; an apartment is a flat and a fag is a cigarette...

I guess I assumed octane is octane...

Thank you for the info!
S4R and stuff-

Duc796canada

#6
Most people won't reply to you on this topic(some might even get rude), it has a been covered extensively. I will give you this, the US equal to 95 RON(European standard rating) is 90/91(RON+MON/2) American rating, yes includes Canada and Mexico!) pump gas in North America, so 89-91 is good for use in your Monster(favouring 91 as daily use and 89 in a pinch). Australia uses the "North American" rating, so regular 87 pump gas is equal to 91-92 RON in Europe. if you live in "higher altitude" areas, you can save your money and theoratically use the lower 89 as daily due lesser dense air.

796 Red Monster(sans ABS)
Viz-Tec Supabrake II
15/41 gearing(AFAM quick change sprocket)
PC V, NEXTUP QS.
2006 Suzuki GSXR 600 track bike(I know...not a Duc...some day)

Howie

Most of us have been running 87 with no problem.  Since your 796 is a new engine it may or may not like 87.  If the engine doesn't ping it doesn't need more.  You will probably hear the ping in spite of your loud pipes.  The mathematical averages don't really work out.  RON (research octane number) and MON (motor octane number) are derived using different test methods.  MON requires preheating of the fuel, higher RPM and variable ignition advance, RON does not.  MON is also more accurately reflects of the needs of a modern engine.

Manufacturers tend to be conservative when it comes to octane rating, even more so when there is no knock sensor being used.  The owners manual for both the 1.8T Golf and Passat we had recommended 91 AKI.  Both ran well (actually better) on 87.  Diagnostic software showed no knock sensor activity on either car.

krolik

I use a combination of weasel piss & cobra venom. I get .1% more horsepower with it. [evil]


;D

'03 M800 "not so dark" Dark, Remus high pipes, Cycle Cat clipons & frame sliders, CRG lanesplitter mirrors, Sargent seat, tail chop, Nichols flywheel, modified & powdercoated rearsets, 15/44 gearing, 520 chain & sprockets, TPO Beast pod filters, Power Comander III. 72.95 Rear Wheel HP & 54.29 ft-lbs!

Quote from: SacDucNo. I'm a different type of idiot altogether.

redxblack


Speeddog

Quote from: krolik on November 20, 2010, 08:54:21 AM
I use a combination of weasel piss & cobra venom. I get .1% more horsepower with it. [evil]


;D



You either don't ride much or you've got a lot of weasels and cobras.  [laugh]
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~~~ "We've rearranged the deck chairs, refilled the champagne glasses, and the band sounds great. This is fine." - Alberto Puig ~~~

the_Journeyman

87 works fine in my carbed M750 and in my FI 900SS.  Granted your 796 makes more HP than my 900 so I don't know that it's all that helpful ~

JM
Got Torque?
Quote from: r_ciao on January 28, 2011, 10:30:29 AM
ADULT TRUTHS

10. Bad decisions make good stories.

Howie

Oh! Forgot about the race gas.  Race gas is a pretty generic term, many different formulas.  Some is just higher octane and may or may not have the additives needed for normal street use.  Others are highly oxygenated fuels that will corrode your fuel system if not run dry.

Aflac

You don't need any more than 87 you don't have high compression pistons if your engine pings because of your altitude use 89

MadDuck

I understand the need to run leaner mixtures at higher altitudes but why on earth would octane have anything to do with that?  Octane basically deals with how fast the fuel burns and when it starts burning. Lower octane igniting sooner than higher octane and all that.
No modification goes unpunished. Memento mori.  Good people drink good beer.  Things happen pretty fast at high speeds.

It's all up to your will level, your thrill level and your skill level.  Everything else is just fluff.