Too Loud Man!

Message

andybev · #1 Post by **andybev** » Fri Mar 20, 2009 4:13 pm

Hi All

I'm sure some of you folks can put me right on this one:

I fully intend to get some track day action on the falco this year but having checked a few vendors I'm worried that my bike might be too loud as is. Limits are 95 -105 db depending on whether its the weekend or not.

I've got Leo Vinci cans fitted which I think sound great but i've no idea how load they are in terms of decibels.

Has anyone been on a track day with anything other than stock cans, or scarier - paid for a track day and not been able to ride due to noise levels?

Cheers
Andy

Falken · #2 Post by **Falken** » Fri Mar 20, 2009 4:33 pm

Hi Andy, Did Cadwell Park last year.
I've got Beowulf Warriors on and with the baffles out they registered 100db on the loudometer.
Brilliant track, it looks narrow but the corners just flow from one to another.
A mate has a Tuono with Akropovic on which measured 102db.

Falcomille · #3 Post by **Falcomille** » Fri Mar 20, 2009 4:45 pm

I think it depends on the track. Donington Park is especially keen as they do measure the dB from the trackside and it has been known for them to black flag. Oulton Park is not as keen (as residential properties are further away and there is woodland all round). I think Donington take the piss as there is an airport next door and 737-400's do make more noise on take-off's than aftermarket cans.

Nooj · #4 Post by **Nooj** » Fri Mar 20, 2009 9:17 pm

Wolf cans, baffles out, got 98dB at Cadwell a few years ago, no probs.

Pierre · #5 Post by **Pierre** » Sat Mar 21, 2009 11:06 am

As a guide I use : - 95 is a road can, 98 is a race can with decibel killers in and 105 is an open can.

My Wolf cans with baffles in have been 97 - 103 depending on who tested them. 102 with them out at croft. All depends on what revs they tell you to go up to and how much you ignore them

I always take my road cans with me 'just in case' but thats a bit harder if you have to ride there

My mate took his endcan off his FZ to see if it made a difference. Sounded like a motogp bike on the back straight until they pulled him in, not for noise but cos they thought it had dropped off

andybev · #6 Post by **andybev** » Mon Mar 23, 2009 8:59 am

Thanks for all the replies.

I rode down to Rockingham circuit on sunday for my regular weekend blast and to see if I could get noise tested. Apparently its the one circuit that has no noise limits so no testers there. Typical. Handy to know tho.

I also discovered that some tracks are stricter than others - apparently mallory (i think it was) has just one static noise tester stationed right on the slowest hairpin so is unlikely to be breached.

(Incidently on the ride back to notts I rode the A151 and B676 from Bourne to Melton. Some great roads out that way...)

Cheers
Andy

Nooj · #7 Post by **Nooj** » Mon Mar 23, 2009 9:23 am

There doesn't seem to be a testing standard from what I've seen and read, I know Cadwell and Castle Coombe both do it differently. Doesn't help really, does it.

andybev · #8 Post by **andybev** » Mon Mar 23, 2009 10:20 am

My bike didn't come with the standard cans and I'm loath to buy any, or even use them on a track. I mean why do we buy 'race' cans anyway if we can't (shouldn't) use them on the road OR the track.

Anway I've seem some decibel killers for sale on line at £15 a piece which doesn't sound too bad but it does mean drilling a very visible hole in your cans to mount them. They claim a 15db reduction. Might impact the fueling though. Its all a bit baffling (did you see what i did?)

Falcopops · #9 Post by **Falcopops** » Mon Mar 23, 2009 12:57 pm

andybev wrote:Its all a bit baffling (did you see what i did?)

Laff! I nearly paid me poll tax.

Only experience I've had was at a motocross track when they tested my mates 400 4-stroke that had an aftermarket can on that was noticeably louder than std, but still less annoying than my 125 2-stroke.

He failed the test 1st time, but passed the 2nd go when I suggested he didn't quite hit the revs being asked for.

Pierre has the right idea, although never ever take his advice regarding anything to do with eBay.

ibicker · #10 Post by **ibicker** » Sat Mar 28, 2009 10:59 am

isnt it a bit odd that race tracks have engine noise regulations?! what is the world coming too?

sabestian · #11 Post by **sabestian** » Sat Mar 28, 2009 10:20 pm

As a reference: double Blue Flames with no baffles (just the corks on the smaller outlets) were 100 db exactly on both Brands and Cadwell.

Oh, and we buy 'race' cans to race, obviously. ;)

Edit: re eBay baffles: I used to use one, fitted with worm drives/jubilee clips (no drilling). They do the job (for killing both noise and fueling) I can recommend them as a 'just in case' solution.