Si@Hendy Performance

HKS Europe are watching/reading this as I type.

1st check the traction fluid level, there should be an adequate level and that the oil is pumping ok.

2nd please check the tension on the belt.

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markforrester99

On your now video the coolant fans are also running which will make alot of extra noises in the engine bay. Does the HKS compressor oil use any sort of inline filter? If so might be worth checking it for anything suspicious.

yorkies2k

Ryan, what's the noise like when you Rev the engine?

tron2k3

At a guess looks like pulley or belt related, comparing the vids the second one looks like it's not spinning at speed compared to the first vid and the noise seems to be coming from that area when you pan the camera over it.

tron2k3

Is there any movement in the pulleys?

yorkies2k

The belt does look loose on the second vid although difficult to tell as you move around a lot

Ryan9

It does use a filter, but if I take it out I don't have a filter to replace it with or more oil.

I tightened the belt and the noise was still the same, the pitch changes with rpm.

The pulleys seem fine, no play in them. I'm fairly certain it's coming from the s/c, you can hear it resonating through the air filter.

Waiting to see what HKS Europe say tomorrow, Si is on the case.

tron2k3

Might be worth checking along all the mounts and bolts along the intake pipe and the bolts to the supercharger as any lose vibrations could travel through the pipe and resonate.

Si will sort you out

CynicG

Agree - you can see it oscillating. How lose was it when you tightened it?

Ryan9

Not massively loose, I think the look of oscillation is actually the cord/writing on the belt going around.