Re: my sh 150 with mivv gp exhaust
Posted: Sun Feb 10, 2013 11:41 am
You are mixing things up a bit.
The big spring located at the clutch has actually nothing to do with the clutch.
The complete rear part of the driven variator consists of 2 parts: the rear driven variator and the clutch.
The rear variator is pushed together with the big spring and so the big spring causes the belt to be tensioned, if you would take out the spring the belt would be slack.
Changing the big spring to a heavier one makes the belt more tight and capable of handling more horsepower without slipping.
So the big spring acts as a counter force for the roller weights at the front variator, if you would install a heavier spring you would also notice that it has the same effect as making the rollers lighter.
So you have 2 effects when making the spring heavier: the belt becomes more tight and the rpm goes up.
But making the belt more tight also causes more friction between belt and variator, more friction= loss of horsepower.
So you dont want to make the spring heavier if it is not necessary because it causes more friction in the belt and you will lose horsepower.
So if youre belt is not slipping you dont want to make the big spring heavier.
The 3 little springs inside the clutch determine at what rpm the clutch will be slipping and so also to what speed the clutch will be slipping and so also at what speed the clutch will go loose if you close the throttle.
Leave the big spring alone and just put in the 3 little green springs and see what happens, if the effect is not enough you can put in the blue or even the red springs.
The big spring located at the clutch has actually nothing to do with the clutch.
The complete rear part of the driven variator consists of 2 parts: the rear driven variator and the clutch.
The rear variator is pushed together with the big spring and so the big spring causes the belt to be tensioned, if you would take out the spring the belt would be slack.
Changing the big spring to a heavier one makes the belt more tight and capable of handling more horsepower without slipping.
So the big spring acts as a counter force for the roller weights at the front variator, if you would install a heavier spring you would also notice that it has the same effect as making the rollers lighter.
So you have 2 effects when making the spring heavier: the belt becomes more tight and the rpm goes up.
But making the belt more tight also causes more friction between belt and variator, more friction= loss of horsepower.
So you dont want to make the spring heavier if it is not necessary because it causes more friction in the belt and you will lose horsepower.
So if youre belt is not slipping you dont want to make the big spring heavier.
The 3 little springs inside the clutch determine at what rpm the clutch will be slipping and so also to what speed the clutch will be slipping and so also at what speed the clutch will go loose if you close the throttle.
Leave the big spring alone and just put in the 3 little green springs and see what happens, if the effect is not enough you can put in the blue or even the red springs.