Which is a better PD pulley?

[2.8 Bird]

Aluminum or Steele?

[Pewter02Camaro]

Re: Which is a better PD pulley?

solid aluminum, less rotational mass.

[ssms5411]

Re: Which is a better PD pulley?

Alm. will start to warp when it gets hot, so I always used steel, the guys where I bought my pullies from always said to go with steel.

[Pewter02Camaro]

Re: Which is a better PD pulley?

A solid aluminum pully will never see enough heat in the engine bay to warp.

Now if the pully was not solid then maybe...

[ssms5411]

Re: Which is a better PD pulley?

Thats what ASP racing told me, I believe in AZ it would get hot enough to warp easliy.

[2.8 Bird]

Re: Which is a better PD pulley?

I also hear that steele grips the belt better whereas aluminum would slowly/gradually wear out and the grip gets more loose.

Anyway, thanks for the input. Steele is a bit expensive but I think I'll go for it.