Decibel Noise Level

[andy99998]

Hi all,

Does anyone know roughly what the db level is for a 1.4 k series with standard 4-1 exhaust?

Thanks,

Andy

[GinG15]

what kind of intake?

[andy99998]

It's all standard caterham at the moment, nothing has been changed since factory.

[mad4amanda]

has it been decatted and when was the silencer last repacked?

[andy99998]

Doesn't have a cat, and the car is second hand (purchased August ish), so I can't really vouch for when it was last repacked...it's something that's on my radar for the next few months.

[mad4amanda]

ok too many variables really they normally are in the range 98 to 107 but that's a huge range. Do you have a smartphone ? if so the apps are very good and within 1dB If it helps I can explain the test procedure and method ? Are you near a circuit if so most will test if you say you are looking to book on a trackday? Finally be aware that at MSV tracks there is driveby as well as static test.

[andy99998]

Thanks so much! I think the standard unit is sealed anyway? So repacking might be a pain...was thinking about replacing the exhaust completely, any suggestions? will give the apps a go and see what they come up with in terms of noise.

[GinG15]

any pics?

[Ex Boy Racer]

I have a 2.0 K series putting out around 220bhp. That registers 94dB, but with a Raceco exhaust.
I'd imagine your car would be fine for any track, which is probably the reason for your question...

[andy99998]

It is indeed, hoping to go a bit later in the year, thanks for the replies! I've ordered a db meter... the app has it at around 101, not sure how accurate that is though.

[mad4amanda]

did you measure it at the correct distance and angle?
If so it should be within 1 dB or so.