Do GSXR's like Av Gas??

[BUBBLE]

I've got a few litres of Avgas in the shed and was wondering if anyone has had problems running a standard GSXR600K3 (fuel injected) on Avgas. I've run bikes in the past with 100% Avgas with no modifications and no problems. My only concern is if the fuel injected GSXR's have a Oxygen Sensor because I know that with some cars, Oxygen Sensors can be damaged with using Leaded Fuel.

[Drunken Monkey]

I've used pump race fuel, which is apparently aviation fuel past its use-by, without any problems.

[bugjuice]

I've used pump race fuel, which is apparently aviation fuel past its use-by, without any problems.

I saw some of that at the Challenge gas station down the road from Puke track - at $2 a litre!

[curious george]

Why on earth would you want to? Cos you want to go slower?
The fumes from av gas are pretty corrosive, and might eat a bit of your exhaust unless it's stainless...

[bungbung]

I saw some of that at the Challenge gas station down the road from Puke track - at $2 a litre!

$2!, captive audience innit?

AvGas from Welli flying club was $1.40 recently.

[BNZ]

Why on earth would you want to? Cos you want to go slower?

Huh? How is AvGas going to make you go slower? Im pretty sure hes not talking about JET-A1!!

[Motoracer]

Huh? How is AvGas going to make you go slower? Im pretty sure hes not talking about JET-A1!!

Cos the higher the Octane the slower the fuel burns. If your engine isn't highly tuned, AvGas doesn't make a diff. Infact running 91 or 96 would probably make it go faster. Just cause the higher octane fuel burns slower, it is more stable so for highly tuned engines it is a safer way to go. If you run 91 on a top of the line race machine, there's a good chance that there will be a lot of detonations from over heating, thus damaging vital engine parts in the process. If you check the temp gauge, the engine would be running at a much higher temp it self. When you run AvGas, it just burns slower to help keep things cool and calm so that the engine can perform like the way it was tuned for.

[bugjuice]

Cos the higher the Octane the slower the fuel burns. If your engine isn't highly tuned, AvGas doesn't make a diff. Infact running 91 or 96 would probably make it go faster. Just cause the higher octane fuel burns slower, it is more stable so for highly tuned engines it is a safer way to go. If you run 91 on a top of the line race machine, there's a good chance that there will be a lot of detonations from over heating, thus damaging vital engine parts in the process. If you check the temp gauge, the engine would be running at a much higher temp it self. When you run AvGas, it just burns slower to help keep things cool and calm so that the engine can perform like the way it was tuned for.

so av-gas would suit newer engines like bikes designed after y2k?
The other thing I've heard is that high octane fuels increase 'knocking' in engines. Not sure if knocking is a bad thing or not, but doesn't sound all that great..

[vifferman]

so av-gas would suit newer engines like bikes designed after y2k?
The other thing I've heard is that high octane fuels increase 'knocking' in engines. Not sure if knocking is a bad thing or not, but doesn't sound all that great..

No, that's back to front. It should decrease knocking, due to the higher octane rating.

Bubble: If the GSXRXRRR has O2 sensors, you should be able to see them, plugged into either the first part of the muffler, or just before the can.

[bugjuice]

No, that's back to front. It should decrease knocking, due to the higher octane rating.

ahhhhhhhhhhhhhhhh.. gotcha.
then my engine is fukt.
bugga.

[vifferman]

then my engine is fukt.
bugga.

How so?
You had some serious knocking noises from it?

[bugjuice]

How so?
You had some serious knocking noises from it?

ahhh.. it's more of a pt than serious at the moment. I've been told all kawa 600 engines from these bikes get knocky. I thought it was a problem, but 2 kawa mechs have told me to suck it up and ride the bloody thing. Just sometimes I could scare tractors and that's before the exhaust note..

[Zapf]

ahhh.. it's more of a pt than serious at the moment. I've been told all kawa 600 engines from these bikes get knocky. I thought it was a problem, but 2 kawa mechs have told me to suck it up and ride the bloody thing. Just sometimes I could scare tractors and that's before the exhaust note..

could be something to do with their very high compression... like 12.9:1 for their 05 636.

[bugjuice]

could be something to do with their very high compression... like 12.9:1 for their 05 636.

could be.. think the 03/4's are 12.8:1

[Wenier]

I have run mine on 100% Av-Gas for a couple of tanks and it went fine, i dont no much bout the O2 Sensor in it but the lead from the fuel can clog em and stuff which means youll need another, obviously it would take more Av-gas than you've got in ya shed. Also it smells great and ya get the lead around the inside tip of the exhaust instead of the black carbon colour so is quite cool.

Huh? How is AvGas going to make you go slower? Im pretty sure hes not talking about JET-A1!!

No.1 We'll get this straight JET-A1 is NOT AV-GAS, it is AV-TUR!

And Vifferman is correct it decreases the chance of knocking, or detonation by being a higher octane.

No.2 AV-GAS is a rating of 110/130 octane, this means at different operating temperatures it operates at the characteristics of either 110 or 130. Cant remember which one it acts as for cold or hot thou.

And i am pretty sure it doesnt burns slower so you should either find no difference in performance apart from the engine might run a bit smoother.

This is as unless you change the fuel ratio to either side of perfect it should burn jus as fast if not quicker. I also Av-gas is able to help in cooling if you have correct valve overlap.