RPM on GSA

[karlp]

I am planning a trip using German autobahn unrestricted roads.

What rpm limit can I sustain the bike at before I start causing long term issues. - 5K, 6K.

i.e. if I travel at 6k rpm for 4hrs is this a problem.

 

[Wapping]

Is this serious?

 

[SamD]

Is this serious?

I was wondering that, what a bizarre question.

 

[Sgt Bilco]

Why do think you will cause any long term damage to the engine if run at a constant high speed??

I'd doubt you would get 4 hours at 6k because you'll be needing some go juice way before then

 

[Wapping]

I'd doubt you would get 4 hours at 6k because you'll be needing some go juice way before then

Or to change your pants once you have been buzzed a few times by Herr Gross Hun in his BuMW at 160+

 

[karlp]

I am serious but the above was exagerated somewhat

If I take it to the extreeme - if the engine runs at 8500 rpm all day then I would expect the engine to wear more quickly - perhaps I am totally wrong.

but the GSA is not a high reving engine compared to the Kawasaki, Yamaha etc.

All I am asking is that if I run at 8000 rpm , stop fill up, run a t 8000 rpm, stop fill up etc is the bike capable of this.

If it is not then at what rpm is it ok.

I like the bike, it is not a sports bike - so just asking the question.-

what rpm is this bike capable of sustaining on a long journey without detrement.

 

[SamD]

I am serious but the above was exagerated somewhat

If I take it to the extreeme - if the engine runs at 8500 rpm all day then I would expect the engine to wear more quickly - perhaps I am totally wrong.

but the GSA is not a high reving engine compared to the Kawasaki, Yamaha etc.

All I am asking is that if I run at 8000 rpm , stop fill up, run a t 8000 rpm, stop fill up etc is the bike capable of this.

If it is not then at what rpm is it ok.

I like the bike, it is not a sports bike - so just asking the question.-

what rpm is this bike capable of sustaining on a long journey without detrement.

I'd have thought, so long as it was warmed up correctly, anything below the limiter is fine

 

[Deleted account 211025001]

I think the answer is more along the lines if what speed you can physically sustain and for how long.
That will be the limiting factor, not the rev ceiling of the engine.

Andres

 

[karlp]

I'd have thought, so long as it was warmed up correctly, anything below the limiter is fine

so first you thought it was a bizarre question and now you have thoughts not fact

 

[SamD]

so first you thought it was a bizarre question and now you have thoughts not fact

Fair comment But it's still a bizarre question to me

 

[John Armstrong]

If German bikes are like the cars, they'll be designed to cruise at any rpm below the yellow line, if it has one in top gear. Whether you're able to cruise that long at that speed is another matter.

 

[thedukeofhunslet]

I think what he means is will running the engine for long periods of time at the same RPM cause the engine to develop a weak spot or cause the engine to balance itself at that rpm and then run like a dog 1000rpm eiher side of that level?

I know of someone who knackered an engine by running it in in one day at the same RPM by taking it up and down the local motorway. Ran like a dog until Honda agreed to replace the engine.

 

[Deleted account 211025001]

I know of someone who knackered an engine by running it in in one day at the same RPM by taking it up and down the local motorway. Ran like a dog until Honda agreed to replace the engine.

I'm not flippin' surprised and amazed Honda replaced the engine - I'm guessing he didn't tell Honda how he ran it in

An engine is at it least stressed when held at constant revs so, providing it's within it's safe working range no problemo

Andres

PS And yes, I think it's a bizare question too

 

[Wapping]

if the engine runs at 8500 rpm all day

You won't be able to sit at 8,500 RPM all day Fuel and nature, not least other vehicles will thwart your ambitions....

If gives you any comfort, I came back across Spain / France from the Morocco Dash, on a fully loaded GSA, for hours on end, sufficiently fast to drop the sustained mpg to the very low 30's.... at one point the onboard computer said 26 or 28 (I forget which) mpg...so bored was I that I tried my best to get it to go lower..... Nothing blew up, nor has it since. It simply drank fuel and ate tyres. Nothing more, nothing less.

 

[karlp]

You won't be able to sit at 8,500 RPM all day Fuel and nature, not least other vehicles will thwart your ambitions....

If gives you any comfort, I came back across Spain / France from the Morocco Dash, on a fully loaded GSA, for hours on end, sufficiently fast to drop the mpg to the low 30's.... at one point the onboard computer said 26 or 28 (I forget which) mpg...so bored was I that I tried my best to get it to go lower..... Nothing blew up, nor has it since. It simply drank fuel and ate tyres. Nothing more, nothing less.

thanks

that was all I needed to know.

i.e. the limitations will be me holding onto the bike rather than possibly wrecking the engine.

 

[Wapping]

I know of someone who knackered an engine by running it in in one day at the same RPM by taking it up and down the local motorway. Ran like a dog until Honda agreed to replace the engine.

Run in period for a Honda 600 miles....

That's a lot of trips up and down a local motorway in a day... Five laps of the M25 at the same throttle setting, if I have my maths right....

 

[swissrob]

I am planning a trip using German autobahn unrestricted roads.

What rpm limit can I sustain the bike at before I start causing long term issues. - 5K, 6K.

i.e. if I travel at 6k rpm for 4hrs is this a problem.

good luck as the autobahn is mainly 120kmh, there is no way you will be doing 6K RPM for 4 hours in 6th gear.
Advisory speed on unrestricted sections is 130kmh, if there is any accident and you are involved then you could also be liable even if its an unrestricted section and you were not directly to blame and were exceeding the advisory limit.

 

[nazdravanul]

Both my 06 RT and 08 GSA, fully loaded, did several days with the engine maxed out, and nothing ever happened (aside awful fuel consumption, and some additional tire wear).

 

[Wapping]

thanks

that was all I needed to know.

i.e. the limitations will be me holding onto the bike rather than possibly wrecking the engine.

Another happy customer

 

[John Armstrong]

good luck as the autobahn is mainly 120kmh, there is no way you will be doing 6K RPM for 4 hours in 6th gear.
Advisory speed on unrestricted sections is 130kmh, if there is any accident and you are involved then you could also be liable even if its an unrestricted section and you were not directly to blame and were exceeding the advisory limit.

I'd heard that over the advisory limit you only have 3rd party insurance

Their highway code is the law and there are no such things as "accidents" only law transgressions, so if there's a RTC or whatever buzz words they use, then someone could be prosecuted.

All IIRC from time over in Germany.