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  • Bedford Autodrome GT circuit full day June 20th

  • Hints and Tips for all things Track Day and 1/4 mile.
Hints and Tips for all things Track Day and 1/4 mile.
 #3856217  by Lewisgame
 Mon May 16, 2016 5:03 pm
That interesting considering we're running the same exhaust. You using a solid fab manifold?
I was 96bd static and hit 95db on drive by. But it was a windy day which might of made drive by noise worse if it was blowing the noise directly into a noise reader.
 #3856293  by shaRRpy
 Wed May 18, 2016 6:53 pm
static is fine at Bedford it's the drive by that's crazy low. 87.5 db. A nice circuit but sometimes too long so u can be out for a long time without even seeing anyone, so they panic a bit when a few of u bunch up and the marshals start showing the spread out signs.lol
 #3856313  by 1812_s
 Wed May 18, 2016 10:50 pm
Does anyone know much about drive by in relation to static sound level.....last time I was there I had a tegiwa catback and I think it was in the mid or high 90's and was fine the whole day

Now I've changed to a 3" which was recently tested at Brands in static at 89db.......am I right in saying it should be fine on drive by aswell

Added in 1 minute 2 seconds:
LG87 wrote:
1812_s wrote:hi guys planning on booking this in the next few weeks

http://www.javelintrackdays.co.uk/track ... 6itemid=11

be good to see some hondas there



I have been eyeing this up for a while as it will be my first track day, and Bedford is just down the road. Are you booked in for it mate?


Should be booking this week
 #3856445  by Lewisgame
 Sat May 21, 2016 4:40 pm
1812_s wrote:Does anyone know much about drive by in relation to static sound level.....last time I was there I had a tegiwa catback and I think it was in the mid or high 90's and was fine the whole day

Now I've changed to a 3" which was recently tested at Brands in static at 89db.......am I right in saying it should be fine on drive by aswell

Like I said. I was 96db static and hit 95db drive by. But the weather and wind direction plays a massive part.
I also heard from my recent track day that MSV tracks have got more strict on noise in the last few months. At Snetterton their sound meters on track side now take photos of the car when it's triggered and this could be same for many tracks now.
I'd still buy an exhaust baffle for back up. Last thing you want is to get black flagged early on and it's a day wasted.