Agreed, looks to be as good as the Steedas, I'd jump on them man. They sold 8 other sets in their history so I don't think its BS, they have a pretty good rating on ebay too.

If you look up the manf part number in google you get this:

http://www.lethalperformance.com/99-...ley-set-p-8224






EDIT: I'm just bustin your ***** with the picture, just to keep us on the same page haha

 

^ Good detective work!

 

i usually try not to rush into buys, especially when it comes to my car, and i also wanted to know if these seem good too... considering they arnt much more after S&H of the other ones

http://www.americanmuscle.com/stack-...eys-cobra.html

 

Those have a piggyback crank pulley and are made of aluminum¹, I.e. complete junk...

--------------------------------
¹ - Aluminum is a horrible material from which to make V-belt (single of multi-rib) pulleys. It is so soft that abrasive particles can get embedded in in them. then they chew up the belt. Also, abrasive particles that get embedded in the belt will chew up the aluminum. Most belt manufacturers specifically warn against using aluminum pulleys, even if hard anodized.

 

well the posting ran out haha

so basically stay away from aluminum pulleys?

 

Yup--it's a lot easier to machine, making the tools last longer; and it's quite light as compared to steel--so if it would work for engine pulleys the automakers would use it.

They don't because it doesn't work...

 

Makes sense so ill make sure to look into steel ones

 

Good find on that set!
Cliffy is right on the UDP (specifically the crank pulley). The crank pulley on that set looked to be a high quality piece (for the reasons Cliffy mentioned). Do not get a piggyback set! The STEEDA kit is a good bet if you are looking for UDP. I have the Steeda set on my car and would reccommend them for those wanting UDP.

 

I keep seeing this piggyback thing all over but I don't know what it is. What exactly makes this ebay set and the steeda set better than the BBK's and that other piggyback set just posted?

 

A piggyback crank pulley has a smaller crank pulley that goes on the crankshaft, but which also has no harmonic balancer--to over come this (as the balancer is necessary) the original crank pulley is bolted to the front of the new crank pulley, I.e. "piggybacked", resulting in a real cluster-f**k.

The major design flaw is that this moves the balancer further outward from the main bearing (it was engineered to be located where it was) which seriously affects it's ability to dampen/control torsional forces in the crank. The secondary CF is that the surface of the OEM crank pulley used to center it on the new UDP was never designed to be used as a centering boss. Combine all of the above with the 3 crummy bolts that fasten it all together and you've got a real mess.

They also look like a jury-rig...


OTH the crank pulley in the auction that started all this, and Steeda's and others that do it right, is a complete assembly consisting of a new pulley bonded to a new harmonic balancer--all designed and precision balanced to do it's job properly.

Here's my Steeda pulley: