110 octane
04-08-2006, 09:20 PM
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110 octane
I'm able to purchase 110 octane 
at the pump and was wondering if that would be too much for the motor, and if so would I be better off running 1/2 110 and 1/2 93?
at the pump and was wondering if that would be too much for the motor, and if so would I be better off running 1/2 110 and 1/2 93?
04-08-2006, 09:24 PM
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haha that is crazy! but to be honest I do think that would be a wee bit too High for the 8 to handle. I've heard of some people stalling out due to high octane levels. But I don't know try it and see what happens! Good Luck
04-08-2006, 09:27 PM
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higher octane does not yield higher horsepower by itself. in essence, higher octane fuel burns slower so as to avoid detonation, allowing for more aggressive tuning, ie boost, more advanced timing, higher compression. it will most likely yield no net benefit on your 8 unless it the motor is highly modified.
04-08-2006, 09:53 PM
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Not sure if it is leaded or not. The gas station is right off of the main road that we race on and they had a sign advertizing it and thought I'd see if it would be safe to run. I know the 104 is because I ran that in my bike, but not sure about the 110. I'll check while I'm out.
04-08-2006, 11:32 PM
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Originally Posted by lurch519
higher octane does not yield higher horsepower by itself. in essence, higher octane fuel burns slower so as to avoid detonation, allowing for more aggressive tuning, ie boost, more advanced timing, higher compression. it will most likely yield no net benefit on your 8 unless it the motor is highly modified.
04-09-2006, 12:11 AM
#22
Metatron
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Lead sled....
Yeah, the "off road only" sticker says it's leaded, no leaded fuel allowed on the highways.
Taking the convertor off only keeps the cat from dying (they go inactive, they never plug up) the real danger is that your wideband (and very expensive) primary O2 sensor will also bite the big one. It is your main fuel control for closed loop operation, and a little Pb will poison it, permanently.
Ain't no magic to be had with real high octane if you don't NEED it - I have access to 115 octane fuel, the only difference I could see was REALLY smutted up exhaust tips!
S
Taking the convertor off only keeps the cat from dying (they go inactive, they never plug up) the real danger is that your wideband (and very expensive) primary O2 sensor will also bite the big one. It is your main fuel control for closed loop operation, and a little Pb will poison it, permanently.
Ain't no magic to be had with real high octane if you don't NEED it - I have access to 115 octane fuel, the only difference I could see was REALLY smutted up exhaust tips!
S
04-09-2006, 12:46 AM
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I tried 110 at streets of willow race track, only because I ran out of gas and I still had two more runs on the track. I didn't feel any diff because it was only the one time. All I can say was, that **** burt up really fast, and cost way to much. Don't do it, you don't really need it, not a big + if you're just driveing the street IMO.
04-11-2006, 08:48 AM
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Tell me about it....the last time I brought something up about oil and I got slammed.
I always understood that the higher the octane the cooler the burn, therefore more controlled (for lack of a better word). Let's try it this way... Higher octane fuel is slower to ignite, and requires higher temperatures to ignite as well...thus preventing detonation in well to highly tuned engines.
This explains why those using high octane fuel in cold weather will probably experience hard starting and stalling...the fuel doesn't want to burn.
I myself use the highest octane I can find (not racing fuel) in the summer which is 94, and run midgrade to regular in the winter when its really cold. It starts better in the winter with reg or mid.
I always understood that the higher the octane the cooler the burn, therefore more controlled (for lack of a better word). Let's try it this way... Higher octane fuel is slower to ignite, and requires higher temperatures to ignite as well...thus preventing detonation in well to highly tuned engines.
This explains why those using high octane fuel in cold weather will probably experience hard starting and stalling...the fuel doesn't want to burn.
I myself use the highest octane I can find (not racing fuel) in the summer which is 94, and run midgrade to regular in the winter when its really cold. It starts better in the winter with reg or mid.