Where To Noise Test Near Birmingham ?

[Snapper]

Anyone know where I can get My S2 Exige Noise tested near Birmingham ?

 

I would like to find out how load it is because I have a Stage 2 Sports Exhaust and an ITG induction kit on it.

 

This way I will know what trackdays I could go on and what I can't to avoid disapointment.

[Stevef]

Anyone know where I can get My S2 Exige Noise tested near Birmingham ?

 

I would like to find out how load it is because I have a Stage 2 Sports Exhaust and an ITG induction kit on it.

 

This way I will know what trackdays I could go on and what I can't to avoid disapointment.

<{POST_SNAPBACK}>

 

when I looked into this I ended up hiring a meter from Book-a-track. cant remeber how much probably 10-15 quid, that including return postage. Only problem is you obviously will struggle with the drive past levels ,unless you get a mate to stand with the meter while you drive past full chat.

 

Steve

[Fiona]

Horizon did it for me on Friday. 94db - what a relief.

[Stevef]

Horizon did it for me on Friday.  94db - what a relief.

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How did they test it? I assume static at 5k RPM and a couple of meters away side on?. I ask because my S1Exige with sports exhaust was aproblem on track days and I know it was in excess of 98db. I might go to Horizon and get them to check my S2 sounds like a good idea.

 

Cheers

 

Steve

[Steve J]

1.5 meters away, at 4.5k revs. Comfortabley under 98dB so not too worried about a couple of dB accuracy.

[Pesky]

1.5 meters away, at 4.5k revs.  Comfortabley under 98dB so not too worried about a couple of dB accuracy.

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Steve/Fiona

 

You'll be lucky to get away with only 4500rpm at a trackday noise test! Normally it's 75% max revs, & your new beastie revs to 7900!

 

However, most testers don't know the Exige's max revs, & more often than not just ask you to run at 5250rpm (ie they assume a max of 7000rpm). You'll have to be careful going past the driveby meters too (eg Donington), & in future driveby testing will become the norm.

 

I don't remember whether or not your car is de-catted, if it is you would be best refitting it before a trackday, or replacing it with a silenced de-cat pipe (I use one supplied by Eliseparts). The silenced de-cat jobbie, knocks about 4db off.

 

Fingers crossed, & good luck.

[Steve J]

Cheers Pesky. It's decatted so will try a quick blast at higher revs when next at Horizon. Llandow is 103dB so should be fine, but Mallory etc will be a problem.

[Snapper]

You also have to remember that the db level changes in different air temp's. Hot and cold days can change the db level by a couple of db

[Stevef]

You also have to remember that the db level changes in different air temp's. Hot and cold days can change the db level by a couple of db

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Along the same lines what is the formula for db doesn't the noise level double for every db at a certain point?. something like that anyway it's certainly not linear.

I think we need a boffin

[malbon]

just ask someone on exiges who has the same setup - someone must have.

 

afaik the stage 2 struggles to get under 98 - so with an induction kit on id doubt you would be at all - mr g got pulled at donnington cos of his hurricane.

 

as most trackdays are either <98 or the higher level of 105/6 the i think you can just assume that you can't do the <98's but can do the rest ??

[Mark A]

1.5 meters away, at 4.5k revs.  Comfortabley under 98dB so not too worried about a couple of dB accuracy.

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As Peskey says the revs are too low, also the meter is too far away, it's usually done at 0.5m, 45degrees.

 

A straight through Cat-pipe will mean the car is too loud for a number of tracks in the UK.

[Mark H]

The same car and setup as yours Snapper was too loud for the driveby when I was at Donington.

[Tango190]

I can hire some attractive cans

 

 

[PeterField]

I was ok on the LoT evening at Donny in August with a de-cat and the Janspeed Supersports? on my S1 exige.

 

Can't have been far off the 98dB limit though!

 

Steve/Fi a reading of 94dB sounds a bit low to me.

[malbon]

94 doesn't sound right. Like Peters, mine was probably just under for donny with 4:2:1, Supersports, Hurricane and SILENCED de-cat. With the straight through de-cat that you heard in Le Mans I was told that was near to 110 db !!

 

damn...that was too loud tho !!