Mudbogger wrote:
Amount of pucks determines engagement rpms that's pretty much it. Please explain in greater detail the performance your describing. It might be another issue.
I have never used that many usually for my pilots with a overbore, carb, reeds, cool head compression around 160 or so I go with 12 pucks engage rpm usually around 3800 to 4000 on my tach. Is your clutch a HRD?
Mud,it's the spring that mainly determines engagement.
Just been going thru my ol notes when I had my Pilot's with Powerblocs.
I'll keep posting up here what and when I find.
Powerbloc Pulley adjustments
Engine SPEED UPON ACCELERATION :
For more competitive performance, or better fuel economy, the user may increase or reduce Engine acceleration speed. The weights in the three Blocks determine Engine speed.
The lighter the Blocks, the higher Engine RPM. By and large, adding a # X-81-3 (3.4 grams)
Weight to each of the 3 Blocks reduces Engine speed by 100 RPM. The opposite is true if one wishes to increase Engine speed. This effect is cumulative if one adds or removes many Weights.
To ensure proper Pulley equilibrium, the three Blocks must contain precisely the same number of Weights.
SPEED UPON ENGAGEMENT :
Though Block
weight has a direct effect upon the Engine RPM at which the vehicle starts moving, it is mainly the choice of Spring that determines Pulley speed engagement. There exists a wide selection of Springs for the Powerbloc family of Pulleys.
Powerbloc Pulleys are pre-calibrated in plant, thereby offering an engagement speed that satisfies most users. However, engagement speed may be modified by changing the Spring. A lighter Spring will lower the engagement speed, thereby allowing for smoother starts and improved vehicle control at very low speed. Inversely, a heavier Spring will produce starts which are more abrupt and competitive.
Just to add to this,it's advisable to weigh each component,puckblocks,
disc weights etc.
I have found some big discrepencies in individual weights.NEVER ASSUME!
Get yaself some digital scales,
weight each seperate piece and put in 3 piles.
1st pile put the underweighted ones.
2nd pile the correct weights.
3rd pile the overweight ones.
By using underweight with overweight etc
This way you mix and matchup the diff weights to end up with 3 totally assembled block/weights that are even/same
weight.
On my Pilot800,I bought a NEW set of 10-64 Polaris flyweights.
1 was correct
weight at 64g,one was underweight by a small amount,and one was a porker 0.5g overweight.
I weighted these because of what I learned with the
Powerblocs and many more components to affect the system.
The blocks over time wear and get damaged and inturn change their own weights.
Mark the blocks with their
weight,so you can see over time how they change from original.