03sierraslt

iTrader: (22)

There catalog also lists the TBSS pulley as being 6.22" and Overdrive.... Thats wrong as well. Byunspeed has them on there site but it doesnt list the Outside diameter. The specs for the TBSS and Camaro pulley are different diameters but the same Part #. Guess they dont proof read their ****. (Powerbond that is)

BigKID

iTrader: (5)

That was my concern as well when I was trying to decide on purchasing one or not. I can assure you, the PB 8-rib OD balancer is 8.25" diameter.

BigKID

iTrader: (5)

You are correct sir. Good catch. Simple oversite on my part when translating from my excel spread sheet into my post.

Pocket

iTrader: (17)

Rewrite that formula because as it sits, it doesnt make any sense. Any engine/SC combo will result in a small decimal answer

Try this or what BigKid posted
((2*Blower size*Drive ratio*14.7)/(Engine displacement))-14.7=Theoretical boost

03sierraslt

iTrader: (22)

Works out the same....

Jamesbond2509

iTrader: (1)

How do you like the powerbond, is there any additional engine vibration and do you notice a difference. I like the idea of 2.5 more lbs of boost and less belt slip.

BigKID

iTrader: (5)

Actually, Pocket is right, Lucille has the (ratio*14.7) part of the equation in the denominator where it should be in the numerator. When he corrected my formula I only looked at the (-14.7) at the end of the equation that I failed to include in mine.

BigKID

iTrader: (5)

I think it is a solid product. I have not noticed any additional vibration since installing it. The difference I did notice is seeing a full 15-15.5# from the bottom of first thru the top of third.

Jamesbond2509

iTrader: (1)

Well for around 200 dollars looks like a great deal for the PB. Think Im in based on your experience with this product.

EVILGMC

iTrader: (47)

If you do go with the OD setup...one thing to consider. I had issues with my IW 10%OD pulley throwing A/C belts. Ended up resolving this with a belt that is a few c-hairs shorter. Gates p/n K040372