Main Menu

Different gas question

Started by flsurfdog, May 19, 2008, 04:13:43 AM

Previous topic - Next topic
Print
Go Down Pages1
User actions

flsurfdog

May 19, 2008, 04:13:43 AM
So after switching over to 87 octane (georgia if that means something different elsewhere) i had a thought.

since lower octane gas is more combustable (more prone to detination) because it's made of smaller compounds.....and higher octane gas is the opposite, however more energy released when it does burn, so (assuming the bike runs normal on low octane)  would higher octane gas give a similar effect as to making the bike more rich?  I mean the stoichometry between low octane or high octane, and air would have to be different, and if you're injecting the same volume of fuel could this not help the lean running conditions of the )2    sensored bikes?
06 s2r1000, Apex Clip-ons, Lowered headlight and gauges, HID high/low, Wasen Design front signals, reflectors removed, Mag Performance clutch cover, Rizoma star pressure plate, open airbox, Spark midpipe, Leo Ti slip-on, tail chop and frame plug blinkers

ROBsS4R

#1
May 19, 2008, 04:16:32 AM

Personally I think my Bike runs better on lower Octane  [thumbsup]

Thats were my knowledge ends  ;D
SOLD 03 - Ducati Monster Dark M620

05 - Ducati Monster Blue/white S4R

My Photo Site http://secondnature.smugmug.com/

Howie

#2
May 19, 2008, 04:52:22 AM
Air to fuel ratio is air to fuel ratio regardless of octane, so the answer is no.  Using octane of too high a rating can cause incomplete combustion and reduced power output though.

johnster

#3
May 19, 2008, 05:03:48 AM
Quote from: howie on May 19, 2008, 04:52:22 AM
Air to fuel ratio is air to fuel ratio regardless of octane, so the answer is no.  Using octane of too high a rating can cause incomplete combustion and reduced power output though.

Is this why valves appear more gunked up with engines that run high octane that don't need it?? It's just left-over crap that doesn't get burned??

I've began to run 89 in my bike full-time, and it doesn't complain....In fact, I've noticed it doesn't do the airbox "sneeze" when the throttle is cracked as often as it used to....I don't know if that has anything to do w/89 versus 93, but it's a possibility!!
2001 MS4; Full Termi w/airbox, ECU, SPS cams, CycleCat ClipOn Adapters, Apex clip-ons, CRG's, MW open clutch, Sargent Saddle, CF aplenty.. NOT RIDEABLE FOR A LONG TIME DUE TO MY STUPID LACK OF JUDGEMENT!!

Howie

#4
May 19, 2008, 05:07:38 AM
Quote from: Johnster on May 19, 2008, 05:03:48 AM
Is this why valves appear more gunked up with engines that run high octane that don't need it?? It's just left-over crap that doesn't get burned??

I've began to run 89 in my bike full-time, and it doesn't complain....In fact, I've noticed it doesn't do the airbox "sneeze" when the throttle is cracked as often as it used to....I don't know if that has anything to do w/89 versus 93, but it's a possibility!!

It is a reason why you could have excessive carbon build up. 
Print
Go Up Pages1
User actions