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Re: Red line ?
Posted: Wed Oct 12, 2011 4:54 pm
by Sibbo
ME 109 wrote:Sibbo wrote:
What do you spin at 100 km ?
I've only taken notice about 5000 times. I think it's 3800 @ 100k.
Then there is also the inaccuracy of the speedo to consider. Mine is about 10 k optimistic.
Yeah , good point .I don't have a GPS so really have no idea of my real speed .
Re: Red line ?
Posted: Wed Oct 12, 2011 7:50 pm
by Zombie Master
I get near red line nearly every time I ride. Don't want to get a cylinder bore ridge
Re: Red line ?
Posted: Thu Oct 13, 2011 2:17 am
by Motu
The R65 loves to rev...so it does. It see the red line many times on every ride,and often hits 8,000rpm if I forget to watch the tacho...
Re: Red line ?
Posted: Thu Oct 13, 2011 2:30 am
by Sibbo
OK , I'm feeling better ... I thought I was being a bit cruel .
Re: Red line ?
Posted: Thu Oct 13, 2011 10:10 am
by Steve in Golden
Zombie Master wrote:I get near red line nearly every time I ride. Don't want to get a cylinder bore ridge
So if I regularly rev the shit out of my engine I won't have a case of the dreaded cylinder bore ridges?
Re: Red line ?
Posted: Thu Oct 13, 2011 11:24 pm
by Chuey
Garnet wrote:I don't have a functioning tach on my conversion or my /5 but both have the same 72 R75 engines. I will rev them in lower gears till they run out of breath which is probably around 6500ish RPMs and sometimes beyond.
Stock valve train will take 7500ish before it begins to float. With a 336 cam the engine is making good power above 7000 so it is worthwhile lightening the valve train to make it safe up to 8000.
I know a guy who has his heads done by a guy who uses skinnier valve stems. I'm thinking it's 8mm. Anyway, he says it revs up much more readily.
Chuey
Re: Red line ?
Posted: Thu Oct 13, 2011 11:53 pm
by Zombie Master
Steve in Golden wrote:Zombie Master wrote:I get near red line nearly every time I ride. Don't want to get a cylinder bore ridge
So if I regularly rev the shit out of my engine I won't have a case of the dreaded cylinder bore ridges?
Unlike coitus where we never ever go all the way in, the piston rings need to go as far in as possible to avoid creating an area that is unused, therefore creating a ridge. This could cause a catastrophic failure if that point is finally reached after a long period of operation. So I recommend regular trips to redline along with the production of large stools.
Re: Red line ?
Posted: Fri Oct 14, 2011 10:18 am
by Steve in Golden
Zombie Master wrote:Steve in Golden wrote:Zombie Master wrote:I get near red line nearly every time I ride. Don't want to get a cylinder bore ridge
So if I regularly rev the shit out of my engine I won't have a case of the dreaded cylinder bore ridges?
Unlike coitus where we never ever go all the way in, the piston rings need to go as far in as possible to avoid creating an area that is unused, therefore creating a ridge. This could cause a catastrophic failure if that point is finally reached after a long period of operation. So I recommend regular trips to redline along with the production of large stools.
I'm sorry I asked.
You feeling OK ZM?
Re: Red line ?
Posted: Fri Oct 14, 2011 10:29 am
by Garnet
Steve in Golden wrote:Zombie Master wrote:So I recommend regular trips to redline along with the production of large stools.
I'm sorry I asked.
You feeling OK ZM?
Sounds like a real large stool to me.
Re: Red line ?
Posted: Fri Oct 14, 2011 3:28 pm
by boxertwinjeff
I tend to rev my engine hard throughout the gears, though not to the point of redlining it,
I thought redlining would be detrimental to the engine yes?