UK Karting - Notice Board (2-Stroke Karting) : Re: fks fuel

Notice Board (2-Stroke Karting)

Re: fks fuel
Posted by 'itpro' on 23 May 2011 @ 12:38

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itproJoined: August 2001
Total Posts: 6
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No.... I didn't miss the point. I was giving you the background to the anwser and was letting you work through the effect.

The confused-concept is that high octane fuels contain 'more power' and thus may produce more heat. You seemed to be under that mis-apprehension.....

For precision, unless we looked at the EXACT formulation of the fuel in question AND the exact formulation of the fuel you usually use, then we cannot be certain that the 'guessed' 'high-octane' fuel you used (by the way, what makes you THINK it WAS higher octane....????) produced more or LESS heat.....

..... but..... in general...... unless you raised the compression of your engine to 'optimise' the engine to the high octane fuel.... then it's actually MORE likely your engine would run COOLER on high octane than on low octane. Having said that (and knowing that the idiot Paul is about) I must stress, I am discussing the more LIKELY events and do not GUARANTEE this answer in all cases.

You can see this if you think about the concept. Low Octane fuels, in the 'wrong' usage, tend to ignite as an explosion, rather than as a controlled 'burn'. That's what a 'knock' actually IS! Where the fuel does 'explode' rather than 'burn', then LESS of the energy is delivered as 'rotating power' (or else 'knocking' engines would be quicker)..... so... A 'knocking' engine turns more of the 'power' into heat than a 'non-knocking' engine, thus High octane fuel is more likely to run cooler across a range of engines!

If you are interested in this in more detail, then there is plenty of accurate stuff on the Web about 'High Octane'. A good place to start is with Wiki....

http://en.wikipedia.org/wiki/Octane_rating

It is NOT the be-all and end-all of answers but it's pretty damned close!

More to the point..... I think you are merely guessing that the fuel used WAS 'higher octane' in the first place and thus, whatever the answer, it may not have anything to do with the fuel you were given.

For a final point on this, the 'Octane rating' is such a confused issue that it's all bar useless, now, as a descrition of fuel. Fuels can be produced to give the same, less or more power, the same, more or less 'anti-knock' properties, etc., etc., which are all covered by the same 'Octane' rating. The subtances being used by the previous Turbo F1 cars was nearer to Napalm (exaggeration!) than 'pump gas' but they were rated as being the same as regular petrol-station fuel..... The 'Octane rating' has out-lived it's usefulness to us!

Ian

Message Thread:

fks fuel by 'djcv8' (23 May 2011 @ 11:02)

Re: fks fuel by 'itpro' (23 May 2011 @ 11:13)

Re: fks fuel by 'djcv8' (23 May 2011 @ 11:26)

Re: fks fuel by 'PaulMRotax' (23 May 2011 @ 11:32)

Re: fks fuel by 'itpro' << You are here!

Re: fks fuel by 'djcv8' (23 May 2011 @ 13:50)

Re: fks fuel by 'PaulMRotax' (23 May 2011 @ 14:28)

Re: fks fuel by 'djcv8' (23 May 2011 @ 15:04)

Re: fks fuel by 'PaulMRotax' (23 May 2011 @ 15:07)

Re: fks fuel by 'itpro' (23 May 2011 @ 15:14)

Re: fks fuel by 'PaulMRotax' (23 May 2011 @ 14:19)

Re: fks fuel by 'PaulMRotax' (23 May 2011 @ 11:29)

Re: fks fuel by 'buzzinrussell' (23 May 2011 @ 15:04)

Re: fks fuel by 'Andy99' (23 May 2011 @ 15:32)

Re: fks fuel by 'djcv8' (23 May 2011 @ 16:05)

Re: fks fuel by 'jakes93DAD' (23 May 2011 @ 16:20)

Re: fks fuel by 'Andy99' (23 May 2011 @ 17:13)

Re: fks fuel by 'luke76' (23 May 2011 @ 17:34)

Re: fks fuel by 'paul40' (23 May 2011 @ 18:03)

Re: fks fuel by 'frag10' (23 May 2011 @ 18:56)

Re: fks fuel by 'MVJ' (23 May 2011 @ 19:16)

Re: fks fuel by 'NigelHop' (23 May 2011 @ 19:27)

Re: fks fuel by 'cadetdadnw' (23 May 2011 @ 19:39)

Re: fks fuel by 'W60Dad' (23 May 2011 @ 23:14)

Re: fks fuel to frag by 'luke76' (23 May 2011 @ 20:39)

Re: fks fuel by 'Slippery1' (23 May 2011 @ 23:18)

Re: fks fuel by 'jakes93DAD' (24 May 2011 @ 9:57)

Re: fks fuel by 'djcv8' (24 May 2011 @ 9:59)

Re: fks fuel by 'cadetdadnw' (24 May 2011 @ 13:28)

Re: fks fuel by 'djcv8' (24 May 2011 @ 15:45)

You Can't Beat The System.... by 'ScoobyScene' (24 May 2011 @ 16:45)

Re: You Can't Beat The System.... by 'W60Dad' (24 May 2011 @ 18:10)

Re: You Can't Beat The System.... by 'frag10' (24 May 2011 @ 18:32)

Re: You Can't Beat The System.... by 'W60Dad' (24 May 2011 @ 20:01)

Re: You Can't Beat The System.... by 'paul40' (24 May 2011 @ 21:38)

agree paul by 'frag10' (24 May 2011 @ 21:39)

Re: agree paul by 'paul40' (24 May 2011 @ 21:58)

Re: agree paul by 'NickyW' (25 May 2011 @ 9:19)

FKS fuel statement out by email now. by 'Rickscott' (26 May 2011 @ 20:02)

Re: FKS fuel statement out by email now. by 'cadetdadnw' (26 May 2011 @ 20:44)

Re: FKS fuel statement out by email now. by 'Rickscott' (26 May 2011 @ 21:00)

Re: FKS fuel statement out by email now. by 'W60Dad' (26 May 2011 @ 21:22)

Re: FKS fuel statement out by email now. by 'bluetoo' (26 May 2011 @ 22:21)

Re: FKS fuel statement out by email now. by 'djcv8' (27 May 2011 @ 9:44)

Re: FKS fuel statement out by email now. by 'djcv8' (27 May 2011 @ 10:17)

Re: FKS fuel statement out by email now. by 'W60Dad' (27 May 2011 @ 11:58)

Re: FKS fuel statement out by email now. by 'djcv8' (27 May 2011 @ 12:22)

Re: FKS fuel statement out by email now. by 'MVJ' (27 May 2011 @ 13:24)

Re: FKS fuel statement out by email now. by 'bluetoo' (27 May 2011 @ 14:55)

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