Re-arranged my throttle bodies.......
04-23-2010, 08:22 PM
#31
What also would probably work would be a dual tensioner set up, where you would have a second tensioner on the other side of the blower. That would take up the slack that occurs on deceleration. You can see on a motorcycle chain what happens. When the rider shuts the throttle, the top portion of the chain between the sprockets goes from tight to producing waves, and the bottom gets tight.
04-23-2010, 09:39 PM
#32
Someone handy should craft a blower pulley that incorporates a sprag clutch. That would allow the blower to freewheel on deceleration, similar to your bicycle chain when you coast.
I think my main issue was that the crank and blower pulleys were out of alignment by a whole rib (blower pulleys further forward). Will see what happens when I get the pulleys back.
04-24-2010, 01:37 AM
#35
Someone handy should craft a blower pulley that incorporates a sprag clutch. That would allow the blower to freewheel on deceleration, similar to your bicycle chain when you coast.
05-05-2010, 11:01 PM
#37
Had .114 machined off the backs of the 3.0" pulleys. Everything appears to line up now. Played around with the tensioner position a bit. Looks like even with not much load the belt stretch consumes most of the tensioner's travel capacity. If it hits the stop, and it was close in this vid, the 2 sections of the belt that are moving in opposite directions will likekly come into contact.
05-06-2010, 08:47 AM
#39
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Cool video. That explains a lot. Damn that belt stretches! For a quick fix you could put a stop bolt into the idler bracket to stop the tensioner right before it contacts the idler. Put then it may unload the belt and cause some slip at high boost.
Could you clock the tension back (CCW) so that the minimum stop is more to the passenger side and a shorter belt?
Could you clock the tension back (CCW) so that the minimum stop is more to the passenger side and a shorter belt?
