Some points to expand on and understand.
A car or bike engine is designed to produce on average 20% of its rated power at any given time for extended periods. You might use 30 of your engines rated 200 HP for example to cruise around run your AC and putter up and down the road. That 200 is there only for excelleration, towing that heavy load up a hill.
An engine like the GX is designed to deliver 80% of its rated power 100% of the time. Its tuned to opperate in a given RPM range and do this reliably.
What this means to us:
The majority of the parts inside are built more robustly. This means if we want to stretch that envelope and do things to it to increase its power throttle respons and excelleration we should be able to get more out of and still be reliable than say a Gy6 of equal power rating ( and significantly smaller displacement ).
Where are the weak points and why?
Flywheel:
Because it was not meant to spin up as fast as some would like
Valves and springs:
Not ment to go that fast.
Rod:
Not intended to turn that hard and not engineered for effect high RPM opperation.
Carburation and governer:
Intended to run in a narrow rpm range.
Ignition: set for easy starting and one opperating speed
BUT there is strength in the design. Parts are made to withstand that 80 % duty factor and they will hold up for short periods of time puting out more.
So how do we translate this into more power?
Better VE, more compression free flowing exhaust and of course this all means shifting the power curve above the originaly designed 3600 rpm. This plays into the weakness of the design these parts were not intended to spin at speeds above 3600 rpm for extended periods. They wil break if held there
and they will need to be replaced with stronger or lighter parts to work that way.
Following along you can see now how you make a clone turn 7000rpm and not explode. The question is how do you get there what parts must be changed and modified and what are you expecting. You need to carefuly plan what your steps and know what in advance you are trying to get.
The comment " want more " comes up in many threads. Well what is more?
If you don't understand where you want to go your not going to get there one mismatched part at a time and making changes without fully understanding their effects will only lead to troubles.
A car or bike engine is designed to produce on average 20% of its rated power at any given time for extended periods. You might use 30 of your engines rated 200 HP for example to cruise around run your AC and putter up and down the road. That 200 is there only for excelleration, towing that heavy load up a hill.
An engine like the GX is designed to deliver 80% of its rated power 100% of the time. Its tuned to opperate in a given RPM range and do this reliably.
What this means to us:
The majority of the parts inside are built more robustly. This means if we want to stretch that envelope and do things to it to increase its power throttle respons and excelleration we should be able to get more out of and still be reliable than say a Gy6 of equal power rating ( and significantly smaller displacement ).
Where are the weak points and why?
Flywheel:
Because it was not meant to spin up as fast as some would like
Valves and springs:
Not ment to go that fast.
Rod:
Not intended to turn that hard and not engineered for effect high RPM opperation.
Carburation and governer:
Intended to run in a narrow rpm range.
Ignition: set for easy starting and one opperating speed
BUT there is strength in the design. Parts are made to withstand that 80 % duty factor and they will hold up for short periods of time puting out more.
So how do we translate this into more power?
Better VE, more compression free flowing exhaust and of course this all means shifting the power curve above the originaly designed 3600 rpm. This plays into the weakness of the design these parts were not intended to spin at speeds above 3600 rpm for extended periods. They wil break if held there
and they will need to be replaced with stronger or lighter parts to work that way.
Following along you can see now how you make a clone turn 7000rpm and not explode. The question is how do you get there what parts must be changed and modified and what are you expecting. You need to carefuly plan what your steps and know what in advance you are trying to get.
The comment " want more " comes up in many threads. Well what is more?
If you don't understand where you want to go your not going to get there one mismatched part at a time and making changes without fully understanding their effects will only lead to troubles.
