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Internal Belt Problems on Powerdyne Supercharger

Internal Belt Problems on Powerdyne Supercharger

Internal Belt Problems on Powerdyne Supercharger

(OP)
I have had a Powerdyne Supercharger with an internal belt drive similar to a Cam drive belt on OHV engines.  The belts seem to break due to both heat and tension. I have tried Kevlar belts, which seem to last longer, but still break. I have heard that Neoprene rubber is only good to 150* F, could this be the failure mechanism?  Are there any stronger materials or better belts or materials available?

RE: Internal Belt Problems on Powerdyne Supercharger

I don't know your specific application, but supercharger drive belts normally need to be set quite loose when cold, to allow for expansion as ehe engine warms up

Regards
pat

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RE: Internal Belt Problems on Powerdyne Supercharger

How about changing to a multi groove v belt with a spring loaded tensioner like most of the accessory drive belting on a lot of automotive applications? Underhood temperatures often get in the 400Deg. F. range and the belts seem to give reasonably good service life. I tried the cog belt drive on a centrifugal blower arrangement. I had all the problems you described plus I wiped out the gearing in the blower. ------Phil

RE: Internal Belt Problems on Powerdyne Supercharger

It seems to me that the problem might be more due to rotor inertia, and sudden drastic changes in engine speed. Going to a multi V internal belt is only going to allow slip, and the belt will burn out and still break.

Perhaps contacting Powerdyne, and seeing what they say  might be worthwhile.

I believe allowing the EXTERNAL drive belt to slip a bit is one possible cure for this. Are you using a toothed external drive ?

RE: Internal Belt Problems on Powerdyne Supercharger

(OP)
""Are you using a toothed external drive ?""
The external drive belt is a 6 rib serpentine type belt.  

Here is their website and propaganda.

www.powerdyne.com
and
http://www.powerdyne.com/silentdr.htm

They are not willing to help, just keep saying "Send it back to Powerdyne$$$". They normally want $500 just to take it apart.

RE: Internal Belt Problems on Powerdyne Supercharger

I worked on a few supercharged cars and the 6 groove serpentines were much better than the timing belts. A timing belt has no chance to slip, whereas a polyV can.

Cheers

Greg Locock

RE: Internal Belt Problems on Powerdyne Supercharger

I would say it is a tension issue. They will tighten up alot when hot. Try running it looser then you have. I have a procharger with an 8 groove serpintine and it slips like a SOB above 5000 RPM. I will be changing it over to a cog drive.

RE: Internal Belt Problems on Powerdyne Supercharger

For STEVE383   I tried that routine with a Procharger with disastorus results.(wiped out the drive gears) I know of several others with similar experiences. Are you using aluminum pulleys? I switched to steel (better coefficient of friction) solved all my problems.------Phil

RE: Internal Belt Problems on Powerdyne Supercharger

Smokey, I have been running a cog drive on my D1 for about 2 years now. I am curious, was yours a P600? I have heard of problems with the very early units and cog drives.

Steve, I couldnt even get the 12 rib setup to hold on a D1, so for my money, cog is the way.....

RE: Internal Belt Problems on Powerdyne Supercharger

Hey patdaly, thanks for the tip! Where is the best place to buy a cog drive for my PS1 Procharger?

RE: Internal Belt Problems on Powerdyne Supercharger

steve, I made my own, because of packaging issues. I would not recommend anyone else do it though, it was not a fun project. Check out http:/www.aspracing.com

RE: Internal Belt Problems on Powerdyne Supercharger

For patdaly. Yes it was a P600. I have heard that procharger now has a more robust gear for some of thier models but even with that they don't recomend use of a cog belt drive in engines equiped with a rev limiter or manual shift. Anything that would cause in a sudden change in engine speed. The inertia is the killer. For Scoupe89 are you trying to run your unit a little faster then recomended? I consulted with a few guys I know that run it. Feed back is it will hold up ok on a 5.0L at 4 lbs boost but when they try to "kick it up a notch" that's when the problems start. I am not aware of any successful cure as of this writing.--------Phil

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