Noise Levels

[Mad Atom]

Just did my first track day yesterday in my (new to me) Atom Cup.

Static sound was measured at 98dB at 6k revs. I commented to the chap "that's good news, I'll be able to do a 98dB day next time"

He said 98dB days are only measured at 4,500revs and so re-did the test and only recorded 93dB

This is goods news but seems too good to be true...?

[wasp]

My 3.5,310 was 94db at 4,500, when tested at Castle Combe, so it sounds about right.

Cheers,
Stu

[Sir Nick]

Combe tested mine - 109dB 

[wasp]

[quote="Sir Nick"]
Combe tested mine - 109dB 
[/quote]

Wow, that's crazy loud!!

You're going to need some pretty special exhaust solution to get that down, without suffocating the engine.

Do that Factory have a workable solution?

[Peter255]

[quote="wasp"]
[quote="Sir Nick"]
Combe tested mine - 109dB 
[/quote]

Wow, that's crazy loud!!

You're going to need some pretty special exhaust solution to get that down, without suffocating the engine.

Do that Factory have a workable solution?
[/quote]

That's a sports exhaust for you! He just needs a stock back box for Combe.

[wasp]

Aah, I didn't realise that Nick had a sports exhaust, I thought that it was standard.

I'll add it to the long ,long list of things I don't know

Cheers,
Stu