Thiinking about changing to a blitz but still want to attend track days, noise limit at Castle Combe is 100db ......... ????

thanks
Iain

 

Hi Iain,


I had a blitz nur spec from turbo back and had it tested at snetterton,,,,, 127db, Put the cat back into the center section and only just got through their 105db limit,


If you fail the db test and you havnt got another quieter exhaust with you then all you trackday money is gone, no refund,

I know have a magnex full system which is nice and quiet on the motorway but is nice and loud on full throttle,

 

It depends how hard you press the throttle pedal... You may well pass the static test but the drive-by, if they have one, will kill you, as the car is on-boost and MASSIVELY louder...

 

127 db!!!!!!!!!! wow that is loud, best to give it a miss me thinks

 

That was a static test at 4k revs, Lol

 

**** me .... lol

 

I had mine tested 117db at 4k just when they say hold it at 4.4k hold it at 3.5k they dont normaly have two people watching your revs and one at the back

darc

 

^^^^ They do at combe, or they did last time I was there

 

my classic passed snetterton ok with blitz nur backbox.
i thought i would try hold it 1k of revs lower than i was asked and it failed, got told off by tester cos he said hold it at higher revs and it is actually quieter, reheld at higher revs and passed easily.
they will do a noise test for you before you pay if you ask

 

Hey "Deception", you're well named!

 

Had mine tested at Mira some time back:

"
4000RPM:
100.1
100.8
102.2

4500RPM
102.4
102.2
102.1

5000RPM
105.5
104.9
105.0

That was with the bung in, static"

 

some different results here, am I right in thinking the blitz nur package consists of a 2.5 into a 3" centre section and the backbox?