PD belt

[Watazz]

Hey i was wondering has any one tried to find a double sided belt long enough to go with the powerdyne build? Like the one for the 2.8 jettas.

[pace2006]

Re: PD belt

It's been discussed on here before. With the John_D Powerwrap and a grooved pulley, you're going to get pretty much all you can out of the Powerdyne BD-11A.

Powerdyne users, we need to talk.

Could this be the Double Sided Rib that we PD users need?

*UPDATED* 4/03/03 Powerdyne People, Ribbed pulley options. Step inside

One thought on makeing a powerdyne pully stick

Powerdyne belts and pullies

Just for reference, I looked into this a couple years ago and the closest I could find was this. Unfortunately, that belt was still a few inches too short and would have required modifying or removing pulleys.

[dgreet77]

Re: PD belt

It's been discussed on here before. With the John_D Powerwrap and a grooved pulley, you're going to get pretty much all you can out of the Powerdyne BD-11A.

^^This. I have no complaints with losing boost due to belt slippage on my setup just using the backside and John_D Powerwrap. I also don't even have a cross-cut pulley for the Powerdyne; which would probably be the way to go if you were worried. ;)

[ssms5411]

Re: PD belt

I know I tried alot of different stuff when I had my powerdyne, the slipping isn't the worst part. The worst is the internal belt heating up too much and can't handle the stress, I've got it up to 11 PSI before but it won't last long. maybe it was the AZ heat.

[Watazz]

Re: PD belt

well ill look at my store for the 105 double sided belt. as for AZ heat i dont think i will need to worry since i live in VA if that was the issue. Im lookin for quick power, which i caint get with a turbo setup since things keep coming up. I hate my car sometimes. And if the internall belt Fs up on me i will go wih the Xb-11a unit if i can find it for less than $2000.

[ssms5411]

Re: PD belt

I think it was mostly the RPMS of the belt and it slipping off, but you could go with a Procharger also, since once you do upgrade to the XB-11a the belt will be harder to turn since its gear chain driven and I think belt slipage will be even worse, thats why I ditched it all together. The Pro charger runs off a 2nd belt so there is no problems with slipage. But good luck to you anyways just don't get caught up into it like I did , I could of bought and had installed a FFF turbo kit for what I kept spending on the Powerdyne when I had it.

[Watazz]

Re: PD belt

who sells the procharger setup? I know gvperformance was working on one.

[pace2006]

Re: PD belt

The problem with the XB-1A is that because it's a gear driven headunit, it will require more force to turn. This is where running the pulley off the backside of the belt becomes an issue and it slips. This is the exact setup I was trying to do last year. I even looked at the pros and cons of trying a double belt system like the GTPs. On the stock layout, you'd probably only get 1-2# boost max with a cut pulley and the PowerWrap. A double-sided belt could help resolve this problem, but when I checked at Autozone, O'Reilly's, and Advance Auto, none of them had anything close enough to work. The problem with double sided belts from VW, Audi, or other imports is that they run a much smaller belt configuration and tend to average about 50" long instead of the 104" belt that you would need.

As for quick power, if you're wanting an almost instant response when you mash the gas pedal, the BD-11A is going to be your best bet. The benefit of the internal belt design is that it can be spun to reach full boost at lower rpms. That is IF you keep it within it's recommended operating range of 6-9#. Even with the race or performance rebuilds you find out there offered by Supercharger Rebuilds or 928, that headunit is only going to handle single digit psi. If you could get the XB-1A to work, the response would not be instantaneous, but would rather hit hard at higher rpms. I've heard the feeling is similar to that of nitrous.

[Watazz]

Re: PD belt

I was just using the vw belt as an example. As for the Xb1a that is unfortunate. It would be nice to see what that PD setup could do with more boost. I guess i should just finish putting together the turbo build. Im not sure i would be happy with the PD in the long run.

[pace2006]

Re: PD belt

I agree. It is unfortunate that our options were limited. But there is always room for pioneering. Far as I know, no one has actually tried to use the XB-1A and a different belt configuration. Pathogen did have a double belt setup with her custom Procharger kit, but it involved relocating the alternator and removing the A/C. Not to mention the custom brackets and tensioners she had made.

I'm not saying it's not possible. Just that no one has really tried. In the meantime, I do hope that GV Performance will be able to release a Procharger bracket kit like they did with the Powerdyne brackets.

[ssms5411]

Re: PD belt

I agree. It is unfortunate that our options were limited. But there is always room for pioneering. Far as I know, no one has actually tried to use the XB-1A and a different belt configuration. Pathogen did have a double belt setup with her custom Procharger kit, but it involved relocating the alternator and removing the A/C. Not to mention the custom brackets and tensioners she had made.

I'm not saying it's not possible. Just that no one has really tried. In the meantime, I do hope that GV Performance will be able to release a Procharger bracket kit like they did with the Powerdyne brackets.

I ran some pretty crazy grooved pullies back in the day, a 2.6" lasted alittle while but a 2.8 would last alot longer. The 2.25" pulley really had the boost go up quick then fall off just as quick , wasted $130 per pulley and $100 in rebuild costs, which I went through 6-7 pullies. Plus having the 928 venting, shimming, and ceramic bearings. I think I was the first to get it done.

[Mighty Thor]

Re: PD belt

I agree. It is unfortunate that our options were limited. But there is always room for pioneering. Far as I know, no one has actually tried to use the XB-1A and a different belt configuration. Pathogen did have a double belt setup with her custom Procharger kit, but it involved relocating the alternator and removing the A/C. Not to mention the custom brackets and tensioners she had made.

I'm not saying it's not possible. Just that no one has really tried. In the meantime, I do hope that GV Performance will be able to release a Procharger bracket kit like they did with the Powerdyne brackets.

Well the problem is that PD doesn't manufacture a reverse impeller like ATI, Paxton, and Vortech does. I've suggested this to 928 awhile back and they said they would consider it. If this ever happen then we could do a double belt set up.

I wouldn't ponder on that XB1a unit. 928 can do a super rebuild and it will produce more cfm than that head unit. They have almost perfected this SC.

Do you have pics of your SC?