Drivetrain new belt tensioner/idler
#1
new belt tensioner/idler
P&D has just finished the design and mock-up of a new product, made entirely in-house:
a new, much stronger moveable arm (CNC machined 7075);
built in adjustments to maintain correct tension with reduction pulleys;
trued tensioner and idler pulley (re-worked stock units);
a new support mount for the idler;
re-worked fastener details and tension release strip;
tension release tool included.
As we re-use/re-work a few stock parts, there will be a core charge or we can build from new stock parts.
The intention is to eliminate loosening bolts, cracking arms, un-true running pulleys, and provide a substantial idler mount.
available in two weeks through Helix. (final price still tbd )
a new, much stronger moveable arm (CNC machined 7075);
built in adjustments to maintain correct tension with reduction pulleys;
trued tensioner and idler pulley (re-worked stock units);
a new support mount for the idler;
re-worked fastener details and tension release strip;
tension release tool included.
As we re-use/re-work a few stock parts, there will be a core charge or we can build from new stock parts.
The intention is to eliminate loosening bolts, cracking arms, un-true running pulleys, and provide a substantial idler mount.
available in two weeks through Helix. (final price still tbd )
#3
I had the good fortune to discuss this with *JOHN* from concept, through its prototype stages, as well as the various manufacturing steps needed to bring it to market. While I have not seen it, the picture in my head is of a design that is quite unique and favorable for increased *GOODNESS*. I am not at liberty to share more details, and I will keep that promise...
I'm quite excited about this product as it will be notably different than the others on the market, and not just for the sake of being different. Some cool thought went into it...
Folks are asking questions, and wanting details for which the creator does not yet want to fully divulge. In keeping with that, and also feeling compelled to respond to inquiring minds, one finds himself tip-toeing with words of validation, yet lacking of content.
True, I can keep totally quiet, but I'm too excited and need to vent somewhere!
I'm quite excited about this product as it will be notably different than the others on the market, and not just for the sake of being different. Some cool thought went into it...
Folks are asking questions, and wanting details for which the creator does not yet want to fully divulge. In keeping with that, and also feeling compelled to respond to inquiring minds, one finds himself tip-toeing with words of validation, yet lacking of content.
True, I can keep totally quiet, but I'm too excited and need to vent somewhere!
#7
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#9
This sounds very exciting and promising. Theoretically speaking, would this upgrade make it less likely that a pulley belt would break during extended runs at high revs? And would it, say, make it more feasible for those who might track their cars to go from the 15% to a 19% pulley without fear of snapping belts or otherwise overtaxing the assembly?
#10
Originally Posted by Galaxie500
This sounds very exciting and promising. Theoretically speaking, would this upgrade make it less likely that a pulley belt would break during extended runs at high revs? And would it, say, make it more feasible for those who might track their cars to go from the 15% to a 19% pulley without fear of snapping belts or otherwise overtaxing the assembly
#11
the stock system provides less tensioner pressure with smaller pulleys and has a weak spot where a few have broken. this new unit would address the tension issue for any size pulley and beef up the wimpy arm. while we are at it, it seems like the other odd bits might as well get fixed...like the hokey idler mount, the stamped pulley "centering" washers, an easy to use tension release tool, etc.
#14
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#21
I've been slammed at work, so I'm behind. the radial distance between the stock pulley and the 19% is about .30" What this means is the tensioner pulley has to extend its spring that much more, reducing the force of the wheel on the belt. Even if you install a shorter belt, this will be the case. the new unit will restore stock spring pressure for reduction pulleys.
As far as abnormal belt wear: the tighter wrap of the 19% is simply going to be harder on the belt. If your belt is too long, it gets worse. Trued pulleys and a better supported idler are factors as well.
The tensioner arm is being strengthened by a factor of four (stronger cross section and higher tensile strength material) since there have been a few cases of breakage reported. there will probably be another trick or two...
As far as abnormal belt wear: the tighter wrap of the 19% is simply going to be harder on the belt. If your belt is too long, it gets worse. Trued pulleys and a better supported idler are factors as well.
The tensioner arm is being strengthened by a factor of four (stronger cross section and higher tensile strength material) since there have been a few cases of breakage reported. there will probably be another trick or two...
#23
#25
I mocked up a prototype but want to take it further so I am getting another block tomorrow (finally) so I can set up the entire belt pulley and tensioner system in the shop on the motor. I'll check ity out with stock and up to 19% pulleys to make sure it alll works. should be a couple of weeks. (I do have to make a living now and then, damn it!)