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Nur Spec R db level on trackday

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Old 14 August 2012, 09:32 PM
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the hamster
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Default Nur Spec R db level on trackday

Anyone done a trackday with a Nur Spec R and been refused?

I've got the bung for it but no way of measuring the db level so wondered if anyone else had tested theirs?

I'm booked on track at Trax in a couple of weeks and dont want to get turned down.
Old 14 August 2012, 09:34 PM
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Blue and Gold
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I thought that a nur spec r was 105 db on tickover?

I don't think you'll get on with it at all
Old 14 August 2012, 09:35 PM
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Even with the bung I think you'll struggle - I thought they were into the hundred plus figures with the bung and worse when it's out

This is the main reason I got rid and bought a quieter one
Old 14 August 2012, 09:38 PM
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I am going to retro fit a newage Miltek rear silencer as I find the Blitz to loud tbho!
Old 14 August 2012, 09:38 PM
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hmm, thats not good, might have to hunt around for a cheap backbox
Old 14 August 2012, 09:40 PM
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Are they really that bad?
I'm semi looking into getting one soon, currently have a ful H&S angled rear, but fancy the straight exit look and the general design of the Blitz.

You recon its a bad move?
Old 14 August 2012, 09:41 PM
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Castle Combe limit is 100DB and seen cars with a Nur Spec R turned away.
Old 14 August 2012, 09:42 PM
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I had one on last blob, they sound amazing! I loved the sound and the look and the quality of the whole thing BUT

My mate lives 1.5 miles away and could hear me start the car when I left for work in the morning
Old 14 August 2012, 09:44 PM
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Without the bung in it has a very loud deep rumble, with the bung in it really supresses the noise and has more of a bark. I actually prefer it with the bung in, but its still loud(ish).

Think I might have a mate who can lend me a centre section with resonator so I should be ok.
Old 14 August 2012, 09:44 PM
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Originally Posted by Scooby B
Castle Combe limit is 100DB and seen cars with a Nur Spec R turned away.
with or without the bung tho? Silverstone is 102db on that day.
Old 14 August 2012, 09:45 PM
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If you have one of those smart phones 'init' most ap stores do a db meter, some better than others so check reviews. Also check what 'weighting' scale the testers use so you can get the best result when trying it ur self. I did mine via an iPhone and then got metered at a track and was within 2db of my results which wasn't bad. Worth a shot anyway.
Old 14 August 2012, 09:46 PM
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I wouldnt wanna be doing track days with a bung in. It would be like you going for a run with a sock stuffed down your throat!
Old 14 August 2012, 09:46 PM
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Originally Posted by the hamster
Without the bung in it has a very loud deep rumble, with the bung in it really supresses the noise and has more of a bark. I actually prefer it with the bung in, but its still loud(ish).

Think I might have a mate who can lend me a centre section with resonator so I should be ok.
The orientation of the back box flange is different to standard so it won't fit. I ended up getting cobra to make me one with a slip joint so I could fit to different back-boxes but I sold it when I bought my TSL exhaust
Old 14 August 2012, 09:50 PM
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Originally Posted by Kedlestone
If you have one of those smart phones 'init' most ap stores do a db meter, some better than others so check reviews. Also check what 'weighting' scale the testers use so you can get the best result when trying it ur self. I did mine via an iPhone and then got metered at a track and was within 2db of my results which wasn't bad. Worth a shot anyway.
Which app did you use chap?
Old 14 August 2012, 09:52 PM
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Originally Posted by JonMc
The orientation of the back box flange is different to standard so it won't fit. I ended up getting cobra to make me one with a slip joint so I could fit to different back-boxes but I sold it when I bought my TSL exhaust
Really? my mate swaps his back box all the time on his Nur Spec and has the full system. We did Bruntingthorpe the other day and he just changed it for another quieter backbox without any modifications
Old 14 August 2012, 09:52 PM
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Originally Posted by the hamster
with or without the bung tho? Silverstone is 102db on that day.
With the bung!!

Quote from aztec here:

https://www.scoobynet.com/816708-bli...-spec-r-2.html

Originally Posted by Aztec Performance Ltd
With the bung fitted mine recorded 105db static.

They are very loud
Old 14 August 2012, 09:56 PM
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i have a db reader and my nur spec on my old blob was 107 on tick over!!
Old 14 August 2012, 09:57 PM
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Originally Posted by the hamster
Which app did you use chap?
SPL Meter from the apple ap store bud
Old 14 August 2012, 09:58 PM
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thanks chap, free or paid?
Old 14 August 2012, 10:09 PM
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69p
Old 14 August 2012, 10:21 PM
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got one, will give it a go but I reckon i'll fit the resonator section my mate has. He's modded it to fit a nur spec so I should be ok.
Old 14 August 2012, 11:04 PM
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Originally Posted by Scooby B
I wouldnt wanna be doing track days with a bung in. It would be like you going for a run with a sock stuffed down your throat!

+1
i changed to a revolution system quiet when pottering about but really loud at full chat
Old 14 August 2012, 11:06 PM
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Originally Posted by Dave-W-
+1
i changed to a revolution system quiet when pottering about but really loud at full chat
You should feel lucky there is no test for the loudness of stickers, if there was you'd be fooked!
Old 14 August 2012, 11:15 PM
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Originally Posted by jayallen
You should feel lucky there is no test for the loudness of stickers, if there was you'd be fooked!
back in FC battyboy
Old 14 August 2012, 11:19 PM
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Old 15 August 2012, 07:01 PM
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Originally Posted by the hamster
thanks chap, free or paid?
Sorry bud yeah what Wiley said.
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