PN 917271 is what I plan on going with.

Is there any other better options?

I know the BHJ is supposed to be a nice piece, but it's $100 more than the ATI and whats to say its actually "better".

 

Im running one of those, really well built. Just get a good installer for it since it is a very tight fit.

 

I picked up a used one for a good price, bought a rebuild o-ring kit from ATI and plan on running it on my 355 but have no experience with using one before.

 

im running the same one greg........nice and light and it works great espically at high rpm........like fex77 said though the hub is a really tight fit.....i broke my puller trying to get it off lol....

 

I borrowed a installer(with a bearing) from a shop, cause I didn't want to break a cheap one one. The worst part was that the installer couldn't pull it on any more, so I cut a heavy piece of metal conduit and bought some big washers at the hardware store to make a spacer so I could get it on there.

 

You are supposed to finish hone the ATI for proper fit. They build them too tight on purpose in order to make up for crankshaft variations (according to ATI rep I spoke to @ SEMA). Good dampers, I have a lot of experience with them and they hold up where others break.

 

I'd be afraid of screwing it up by honing too much.

 

Can anyone tell me why its SO much more expensive then other underdrive pullys?

 

Lol mark, nice sig

 

Then don't hone it too much :-D

 

Anyone use a fluidamper

 

Yea I had one that stupid pos destroyed my timing set. I don't think anyone uses them for high RPM stuff anymore.

 

Whats the advantage running one of these over stock?

 

This is because it is the entire dampener, not just an add on pulley.

It is also an SFI approved part.

These are my first choice for my performance builds.

 

Can you pm me a price Lonnie on the 10% under w steel hub

 

I am using one, I had to buy a new hub due to the EFI 24X and having a 93, when I priced it versus say a complete hub and pulley from Jegs, I ended up going with the ATI. It's a really nice part.

 

PM sent....

 

Are they a lot lighter then stock?

 

I am using a Powerbond. I like it but I am not running high RPM in my bolt on car. It is 10% underdrive and SFI Approved.

http://www.byunspeed.com/product_inf...oducts_id=5696

 

Im using an ATI, 10% under and alum housing.