4pk harmonic balancer?

[bozothenutter]

Any mfg sites where I can look for a 4pk harmonic balancer/crank pulley that will fit the F4R crank?
Trying to find one to use with the Pure lw pulley kit.

 

[hipwell]

Any mfg sites where I can look for a 4pk harmonic balancer/crank pulley that will fit the F4R crank?
Trying to find one to use with the Pure lw pulley kit.

I thought the pure kit came with one?

 

[bozothenutter]

I thought the pure kit came with one?

Nope, that is just a pulley, not a harmonic balancer.
And since the internals aren't balanced.....

 

[bozothenutter]

anybody?
can I?
@NorthloopCup @bloke as the resident techies.....

 

[bloke]

Got to say pass? Why not just run the normal one? Won't be much of a weight difference o wouldn't of thought?

 

[bozothenutter]

Got to say pass? Why not just run the normal one? Won't be much of a weight difference o wouldn't of thought?

Want the Pure aircon delete kit, like machined stuff so want to go lightweight, but want to keep the harmonic balancer.
would it be safe to run a 4pk belt on the oem 6pk balancer?

 

[hipwell]

Want the Pure aircon delete kit, like machined stuff so want to go lightweight, but want to keep the harmonic balancer.
would it be safe to run a 4pk belt on the oem 6pk balancer?

I wouldn't have thought so, the edge ribs are taller to stop the belt skipping a rib I think.

What are you worried about happening with the pure pulley? I dont think they would sell something thats going to make your engine self destruct surely?

 

[bloke]

Be fine, I cut a 6 rib down to a 3 and ran it on my car for a while.

 

[bozothenutter]

I wouldn't have thought so, the edge ribs are taller to stop the belt skipping a rib I think.

What are you worried about happening with the pure pulley? I dont think they would sell something thats going to make your engine self destruct surely?

Imo theharmonic balancer is there to do a job.
As I have standard internals I'd rather have it dampen any vibration in the necessary rev range.
I'd use the pulley only with balanced internals.