Discussion
So no ideas other than plugs/leads? It's still on its original plugs so will have them changed next time. And yes I was talking about under full throttle and not how much luggage I was carrying 
I don't recall even my Mini 850 spluttering due to luggage though two stroke mopeds do sometimes suffer depending on size of girlfriend. Z06's tend to cope though.
I don't recall even my Mini 850 spluttering due to luggage though two stroke mopeds do sometimes suffer depending on size of girlfriend. Z06's tend to cope though.mrobin33 said:
So no ideas other than plugs/leads? It's still on its original plugs so will have them changed next time. And yes I was talking about under full throttle and not how much luggage I was carrying I don't recall even my Mini 850 spluttering due to luggage though two stroke mopeds do sometimes suffer depending on size of girlfriend. Z06's tend to cope though.
I have no experience of the Z06 engine, and would be amazed if this does not turn out to be an electrical issue. I don't recall even my Mini 850 spluttering due to luggage though two stroke mopeds do sometimes suffer depending on size of girlfriend. Z06's tend to cope though.That said, have you had any mods done? The reason I ask is that if you have no electrical issues it could be valve bounce - sounds an extreme idea but bear with me.
Many moons ago, after modifying camshafts on some of my old 4pot Ford race engines (high lift, back cut) it would induce valve bounce, which manifests at high revs / high loads. The old fashioned correction to this was to install double valve springs - I guess nowadays it is a matched spring to the cam.
It's a bit of a clutched straw, but maybe the octane differences between the US and UK, combined with any cammy things that your Z06 may have on board, and any other mods could just induce this with a higher octane UK fuel??
I honestly do not know, but it's a (very) long shot to look at if you cannot find any electrical issues.
No it's all standard in the engine department. Maybe it's okay but it just feels and sounds a bit rougher as it heads for the redline. I'd hope not to get valve bounce at 5500rpm but you never know! As I say I never noticed it as much in the US, and my new C6 Z06 is much cleaner at high revs so maybe that's making me notice it more now. It'll get a good service in the New Year, some new plugs and check there are no birds nests in the air filter - you never know what happened on its transatlantic journey.
mrobin33 said:
No it's all standard in the engine department. Maybe it's okay but it just feels and sounds a bit rougher as it heads for the redline. I'd hope not to get valve bounce at 5500rpm but you never know! As I say I never noticed it as much in the US, and my new C6 Z06 is much cleaner at high revs so maybe that's making me notice it more now. It'll get a good service in the New Year, some new plugs and check there are no birds nests in the air filter - you never know what happened on its transatlantic journey.
Are you sure that you have not just got used to your more refined C6?Matthew, I took mine out today (purely in the interests of research, you understand) and it ran consistently right up to the rev limiter. Mine is completely stock too, and whilst this doesn't help you, it could indicate a slight problem with yours. I assume you've looked for any fault codes??
Edited by C5RagTop on Wednesday 17th December 15:55
C5RagTop said:
Matthew, I took mine out today (purely in the interests of research, you understand) and it ran consistently right up to the rev limiter. Mine is completely stock too, and whilst this doesn't help you, it could indicate a slight problem with yours. I assume you've looked for any fault codes??
Interesting - I'll investigate further when I am back in the UK. I've never seen any warning lights nor messages so could there be fault codes nonetheless??Edited by C5RagTop on Wednesday 17th December 15:55
It's not so noticeable in lower gears - in fourth it is (I think between 110-115mph?)and I have never got up there in fifth in the UK (North Carolina is another matter). JulesV has the keys so maybe he can investigate on a misty Sussex morning.
mrobin33 said:
C5RagTop said:
Matthew, I took mine out today (purely in the interests of research, you understand) and it ran consistently right up to the rev limiter. Mine is completely stock too, and whilst this doesn't help you, it could indicate a slight problem with yours. I assume you've looked for any fault codes??
Interesting - I'll investigate further when I am back in the UK. I've never seen any warning lights nor messages so could there be fault codes nonetheless??Edited by C5RagTop on Wednesday 17th December 15:55
It's not so noticeable in lower gears - in fourth it is (I think between 110-115mph?)and I have never got up there in fifth in the UK (North Carolina is another matter). JulesV has the keys so maybe he can investigate on a misty Sussex morning.
Edited by JulesV on Wednesday 17th December 22:21
JulesV said:
mrobin33 said:
C5RagTop said:
Matthew, I took mine out today (purely in the interests of research, you understand) and it ran consistently right up to the rev limiter. Mine is completely stock too, and whilst this doesn't help you, it could indicate a slight problem with yours. I assume you've looked for any fault codes??
Interesting - I'll investigate further when I am back in the UK. I've never seen any warning lights nor messages so could there be fault codes nonetheless??Edited by C5RagTop on Wednesday 17th December 15:55
It's not so noticeable in lower gears - in fourth it is (I think between 110-115mph?)and I have never got up there in fifth in the UK (North Carolina is another matter). JulesV has the keys so maybe he can investigate on a misty Sussex morning.
Edited by JulesV on Wednesday 17th December 22:21
mrobin33 said:
JulesV said:
mrobin33 said:
C5RagTop said:
Matthew, I took mine out today (purely in the interests of research, you understand) and it ran consistently right up to the rev limiter. Mine is completely stock too, and whilst this doesn't help you, it could indicate a slight problem with yours. I assume you've looked for any fault codes??
Interesting - I'll investigate further when I am back in the UK. I've never seen any warning lights nor messages so could there be fault codes nonetheless??Edited by C5RagTop on Wednesday 17th December 15:55
It's not so noticeable in lower gears - in fourth it is (I think between 110-115mph?)and I have never got up there in fifth in the UK (North Carolina is another matter). JulesV has the keys so maybe he can investigate on a misty Sussex morning.
Edited by JulesV on Wednesday 17th December 22:21
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