Vs l67 rattle high rpm

[Comcal76]

It rattled with the single row timing chain as well and when I installed the double row I installed two gaskets because of the clearance issues.

Thanks mate.

[vlad01]

So does the rattle goes away with the blower disconnected?

[Comcal76]

Yeah doesn't rattle with supercharger belt disconnected

[vlad01]

Probably coupling in the SC or something in the SC.


I would try revving it with the SC bypass valve manually opened and see if it still makes noise. That will still let the SC run but without load on it.

[immortality]

Could be the valve that is rattling, have seen pics of those well worn in the bore.

[Comcal76]

I tried another complete supercharger with a new coupler and the rattle is still there.

[delcowizzid]

Could just be detonation

[Comcal76]

Could just be detonation

I would say your spot on

[vlad01]

What fuel are you using?

[Comcal76]

I always run 98