Is racing Fuel Good or Bad for our G35
#46
02-25-2009 | 06:53 AM
90% of you seem to be basing your opinoins on personal experience rather then theory. Here are the facts, well as factual as Wikipedia can be.
"Many high-performance engines are designed to operate with a high maximum compression and thus demand high-octane premium gasoline. A common misconception is that power output or fuel mileage can be improved by burning higher octane fuel than a particular engine was designed for. The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power."
http://en.wikipedia.org/wiki/Octane_rating
"Many high-performance engines are designed to operate with a high maximum compression and thus demand high-octane premium gasoline. A common misconception is that power output or fuel mileage can be improved by burning higher octane fuel than a particular engine was designed for. The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power."
http://en.wikipedia.org/wiki/Octane_rating
#47
02-25-2009 | 02:13 PM
90% of you seem to be basing your opinoins on personal experience rather then theory. Here are the facts, well as factual as Wikipedia can be.
"Many high-performance engines are designed to operate with a high maximum compression and thus demand high-octane premium gasoline. A common misconception is that power output or fuel mileage can be improved by burning higher octane fuel than a particular engine was designed for. The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power."
http://en.wikipedia.org/wiki/Octane_rating
"Many high-performance engines are designed to operate with a high maximum compression and thus demand high-octane premium gasoline. A common misconception is that power output or fuel mileage can be improved by burning higher octane fuel than a particular engine was designed for. The power output of an engine depends in part on the energy density of its fuel, but similar fuels with different octane ratings have similar density. Since switching to a higher octane fuel does not add any more hydrocarbon content or oxygen, the engine cannot produce more power."
http://en.wikipedia.org/wiki/Octane_rating
Those of us with “personal” experience and not “theory” are the ones that should be addressing the issue… none of us said anything about stock tuned ECU – your reference is based on OEM design (including ecu parameters).
Race Fuel is not only about octane - the fuel I mentioned is oxyenated.
Before telling someone their engine cant produce more power with race fuel - why not do what many of us have... dyno tune on 89 or 91 run it dry - add the race fuel I am referencing and re-tune... then post the gains you see on the dyno.
#48
02-25-2009 | 02:34 PM
Those of us with “personal” experience and not “theory” are the ones that should be addressing the issue… none of us said anything about stock tuned ECU – your reference is based on OEM design (including ecu parameters).
Those of us with “personal” experience and not “theory” are the ones that should be addressing the issue… none of us said anything about stock tuned ECU – your reference is based on OEM design (including ecu parameters).
Race Fuel is not only about octane - the fuel I mentioned is oxyenated.
Before telling someone their engine cant produce more power with race fuel - why not do what many of us have... dyno tune on 89 or 91 run it dry - add the race fuel I am referencing and re-tune... then post the gains you see on the dyno.
Those of us with “personal” experience and not “theory” are the ones that should be addressing the issue… none of us said anything about stock tuned ECU – your reference is based on OEM design (including ecu parameters).
Race Fuel is not only about octane - the fuel I mentioned is oxyenated.
Before telling someone their engine cant produce more power with race fuel - why not do what many of us have... dyno tune on 89 or 91 run it dry - add the race fuel I am referencing and re-tune... then post the gains you see on the dyno.
#49
02-25-2009 | 03:30 PM
Agreed. Your car can make more or less power depending on the conditions. But even still, a gain on the dyno is still a gain that'll carry out to the tracks.
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