102 Octane fuel?

[APNess]

Anyone tried it?

https://www.bp.com/sectiongenericarticle.do?categoryId=9009077&contentId=7016847

According to the blurb they seem to think motorbikes will benefit from it, though I did read somewhere it's £2.50 or thereabouts PER LITRE, so over a tenner a gallon. All the sites selling it are in the South (we get gritty washing up liquid for fuel up North ) These are BP garages:

All Saints Self Serve
Commercial Road, Portsmouth, Hampshire, PO1 4BU
Chicheley Park Connect
Tickford Street, Newport Pagnell, Buckinghamshire, MK16 9BD
Newbury Centre Filling Station
758 Eastern Avenue (A12), Newbury Park, Illford, Essex, IG2 7HU
Newham Way Service Station
Newham Way, (A13 Westbound), Canning Town, London, E16 1QX
Tudor Filling Station
London Road (A20), Allington, Maidstone, Kent, ME16 OHE
Wavendon Gate Connect
Newport Road, Wavendon, Milton Keynes, MK7 7AG

I tried their Ultimate diesel in my car and didn't notice any performance gain, but did get 50 or 60 miles extra from a tank driving normally, having forgotten I'd even put the stuff in. I suspect a bike or car running this 102 octane stuff would need mapping specifically for it, and at that price can't imagine there'd be many that would go to that expense, though the rolling road crowds (Subaru, EVOs etc) on a sunday morning might.

[paulthewitt]

probably do more damage to the engine than good. i believe high octane is only good if the bikes designed for it. causes knock or summit.

most bikes run happiest on 95 octane. some on the "super" 98 octane. but 102 octane

a technogenius will be along shortly to explain no doubt.
Paul

[tony532]

dont think my 96 thundercat will benefit too much from it.

i'l leave that for the top fuel dragsters.
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bikes owned :-

aprilia rs125 - suzuki gsxr400rrsp 1990 - yamaha yzf600r thundercat - honda hornet 6

[Kickstart]

Hi

Octane rating itself will not give you anything on most bikes (will give you a bit on anything using a knock sensor to feedback for altering the ignition timing, think a few BMWs do).

Some Japanese bikes are quoted to use fairly low octane fuel.

Bet the stuff will sell well for those with Skylines and the like.

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[paulthewitt]

[LUXY DJ]

its basically anything HIGHLY TUNED! that it'll work well on
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GSXR750
(FAR FAR from standard) www.gixerjunkies.net

[Kickstart]

[McGee]

Who ever said a new one of these threads pop up about once a week deserves
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Its pronounced Jixxer!

[JpWard]

Basically octane rating off fuel is rated in 3 ways one off which is RON which we use, Americans use MON and there is a mixture off the two being the third.

What the figure actually means as in 95,97 or indeed in this case 102 is the RON (Research octane number) and is a measure off resistance to knock which is pre-ignition also knowen as detonation.

Anything sold in the UK bike, car, lawn mower even is set up to run on a minimum grade off 95 octane since 4 star went out and as a result this means they if injection engines are MAPed for 95RON

This is where it is important, on engines running higher than standard compression or turbo charged the mixture can become dangerously lean and we all know this leads to chocolate pistons and this is because the 95RON under higher cylinder pressure's will self ignite causing a hot spot and thus killing the engine.

Solution use 97RON and advance the timing a few degrees forward and the flame front will move from the spark more evenly from the plug until it hits the piston dish.

People using 102RON generally have race engines which have very high boost or compression and i believe BP are marketing this fuel to the Racing market not for your 1.2L Corsa

The reason some bikes preform better on 97RON is that they use intelligent tuning as in the ecu detects knock to be lower with higher rating and thus advances the timing giving a more powerful stroke i believe bmw's and V-tecs use this and maybe some other bikes.

You can make your own octane booster from a product called toluene which you mix up to 30% or you can also use avgas in a mix with petrol but mostly unless your jetting or alike is a little on the lean side then i wouldnt think you would see any advantages of 97+RON.

To finish off why people like me with jap rockets use it is because Jap imports come normally MAPed to 100RON fuel as this is the standard in Japan and when MAPed for higher fuel using lower rating can and will result in killing an engine, the American rating i mentioned is a tougher test so ratings are lower for same fuel as in, 95RON = 91MON (Motor Octane Number)

[Kickstart]

Hi

The Americans use the Pump Octane Number (PON) which is an average of the Research Octane Number (RON) and Motor Octane Number (MON). Very rough rule of thumb for road fuels the MON figure for a fuel will be 10 points lower than the RON figure for the same fuel.

All the best

Keith
____________________
Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[LUXY DJ]

so your both talking about all these fuels being in a FI bike/car...but what about carbed?
____________________
GSXR750
(FAR FAR from standard) www.gixerjunkies.net

[Kickstart]

[JpWard]

[Paul@125power]

I used to know a bike mechanic that worked at PSN scooters and he said that smaller bore 2 stroke engines, esspecially 50-200cc scooters get better power and preformance from using a higher octane fuel. He still today races scooters professionally as well as being a mechanic.
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If at first you don't succeed.....destroy all evidence that you tried.

Yamaha YQ100 (RIP)......Honda CBR125R

[ZRX61]