What should I set my max RPM to 503.
in 2 Stroke Technical Questions
11 years ago
Hi all and seasons greetings,
I got my self one of those cheap copy tiny tachs off ebay a few weeks ago...tested it out on my DCDI 503 fitted to my trike a few days ago....I was surprised that it indicates that my small Westach analogue gauge is under reading around 160rpm,
What worries me is that I thought my trike tach was over reading by around 5%....indicating a take off RPM of 6900rpm...so it may accentually be hitting 7000rpm + on take-off, if this new digi tack is to be believed,
I also did a quick reading with my hand held laser tach which is what I originally set my RPM with...and the reading I got from that agrees with the digi tach....I tried the same duel test with my wife car...both gauges inc within 10rpm of each other on that so I think they are both accurate,
Only been able to test my trike RPM to 3000rpm at the moment...I will try a full power test over the w/e if it stops rain here in the UK,
This engine has only run for 30 from new...bought it last summer...one of the last available here in the UK,
So if it was hitting 7000rpm could I have done any harm...and what max RPM should I set it to....the Rotax manual stating 6800 take off max 5 mins...but all my buddy's say 6500rpm max,
What do you guys think it should be.
Nick.
I got my self one of those cheap copy tiny tachs off ebay a few weeks ago...tested it out on my DCDI 503 fitted to my trike a few days ago....I was surprised that it indicates that my small Westach analogue gauge is under reading around 160rpm,
What worries me is that I thought my trike tach was over reading by around 5%....indicating a take off RPM of 6900rpm...so it may accentually be hitting 7000rpm + on take-off, if this new digi tack is to be believed,
I also did a quick reading with my hand held laser tach which is what I originally set my RPM with...and the reading I got from that agrees with the digi tach....I tried the same duel test with my wife car...both gauges inc within 10rpm of each other on that so I think they are both accurate,
Only been able to test my trike RPM to 3000rpm at the moment...I will try a full power test over the w/e if it stops rain here in the UK,
This engine has only run for 30 from new...bought it last summer...one of the last available here in the UK,
So if it was hitting 7000rpm could I have done any harm...and what max RPM should I set it to....the Rotax manual stating 6800 take off max 5 mins...but all my buddy's say 6500rpm max,
What do you guys think it should be.
Nick.
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