SR1 noise limits

[ifitsgotanengine]

Hi,

Does anyone know the approx static and drive-by dB of an SR1 please?

I'm looking to book onto a few trackdays in 2019 and some of the limits look potentially tight.

Thanks

[Gc285]

Mine only failed once at a very fussy trackday. Test days at 105db never were an issue but got very close.
Repack the rear box if it doesn't pass 105 or fit a DB killer. Combination of both did it for me. The fluff had blown out over time. SR1 went a week ago and regret it already!

PS. if it passes static , it will never fail driveby! Because they are rear bike engine they are loud at the noise test ,That goes once out there. Don't get it tested without the rear clam on either. A little trick I have used on another car, have a bit of tube that slips over the end that exits downwards. They test out the back and the noise does not go directly at the DB meter if you get it right.

Edited by Gc285 on Wednesday 2nd January 08:45

[fast freddie]

You have just missed a road going quiet exhaust on ebay. The item number was 264034464572 and the address was Lightwater, UK. I am afraid that is all I know but someone on this site may know someone from Lightwater who used to have a Radical. I have one of these silencers on my SR4 and it runs at about 88.5 to 99 dB.

[dh00065p]

Have a look on Racecarsdirect under Radical.
There is what looks like a one off quiet system for an SR3 which might fit an SR1

[Gc285]

The exhaust in Lightwater is mine,
It is from an SR3rs I sold last year. Will not fit the RSX so will sell it at some point.
I suppose now Christmas is over and all that , I will pop down the garage and measure it. Unfortunately the SR1 went a week ago so I cannot dummy fit it to check.