dB limit?
Author
Discussion

happyaslarry

Original Poster:

55 posts

242 months

Tuesday 20th March 2007
quotequote all
Anyone have any idea how much noise a standard de-precatted griffith 500 makes?? It's all a bit last minute but before coughing up the cash for a trackday later this week, need to know if my car exceeds 100dB(A) 0.5 m 4500rpm. Difficult question but any help much appreciated.

steve-v8s

2,924 posts

277 months

Tuesday 20th March 2007
quotequote all
Is the exhaust still original ? Mine still has both cats fitted but the previous owner had the box sleeved. On the standard MSA test it varies between 100 and 102.


Edited by steve-v8s on Tuesday 20th March 11:44

Pasco

6,652 posts

257 months

Tuesday 20th March 2007
quotequote all
happyaslarry said:
Anyone have any idea how much noise a standard de-precatted griffith 500 makes?? It's all a bit last minute but before coughing up the cash for a trackday later this week, need to know if my car exceeds 100dB(A) 0.5 m 4500rpm. Difficult question but any help much appreciated.



What do you mean when you say A standard De-Precatted Griff 500 scratchchin

clive f

7,259 posts

262 months

Tuesday 20th March 2007
quotequote all
Pasco`s car would probably get on the track okayscratchchin

jeffsy

5,603 posts

256 months

Tuesday 20th March 2007
quotequote all
clive f said:
Pasco`s car would probably get on the track okayscratchchin


hehe

bluebottle

3,498 posts

269 months

Tuesday 20th March 2007
quotequote all
I have a standard exhaust system with the main cat fitted and Act decatted manifolds, which usaully records 95db at trackdays. It did record 98db at one trackday (probably tester had the metre too close)

griffdude

1,930 posts

277 months

Tuesday 20th March 2007
quotequote all
bluebottle said:
I have a standard exhaust system with the main cat fitted and Act decatted manifolds, which usaully records 95db at trackdays. It did record 98db at one trackday (probably tester had the metre too close)


should the meter not be half a metre?

davetherave1970

2,144 posts

275 months

Tuesday 20th March 2007
quotequote all
My standard exhaust with all cats on 94 griff 500 was measured at 104dB at 3000rpm and 106dB at 4000rpm. This was at 1m away also!

Now reading others results I'm wondering if it wasn't "standard" scratchchin

Edited by davetherave1970 on Tuesday 20th March 13:13

happyaslarry

Original Poster:

55 posts

242 months

Tuesday 20th March 2007
quotequote all
Sounds a bit close to call. The engine is a '94 5L, rebuilt to by TVR autocraft, with both pre-cats removed and a standard exhaust. Should invest in a silencer I guess. Thanks a lot for the advice.

GarryM

1,113 posts

312 months

Tuesday 20th March 2007
quotequote all
happyaslarry said:
Anyone have any idea how much noise a standard de-precatted griffith 500 makes?? It's all a bit last minute but before coughing up the cash for a trackday later this week, need to know if my car exceeds 100dB(A) 0.5 m 4500rpm. Difficult question but any help much appreciated.

That sounds a bit like a motorsport events day. My guess is that you will be on the limit or slightly over. If it's a cold damp day you will almost certainly be over. Mine's been 96, 99, 104 & 106 on different days. Also I think the silencing in your exhaust becomes less effective over time so that added to the removal of the pre-cats makes me think yours will be slightly louder than my '96 standard Griff 500. The silly thing is other cars that pass the test and then regularly rev to 8000 will most likely be louder than you on track anyway.

Pasco

6,652 posts

257 months

Tuesday 20th March 2007
quotequote all
clive f said:
Pasco`s car would probably get on the track okayscratchchin



hehe along with Buggles and Large hehe

I think my track days are over for me 110db at tick over at 1m scratchchin


Edited by Pasco on Tuesday 20th March 16:43

clive f

7,259 posts

262 months

Tuesday 20th March 2007
quotequote all
pasco, face it mate, it probably sounds really loud since the doc removed you ear wax an belly button fluffhehehehe







enough fluff to make a pullover apparently


Edited by clive f on Tuesday 20th March 17:50

Ballistic Banana

14,706 posts

296 months

Tuesday 20th March 2007
quotequote all
clive f said:
pasco, face it mate, it probably sounds really loud since the doc removed you ear wax an belly button fluffhehehehe







enough fluff to make a pullover apparently


Edited by clive f on Tuesday 20th March 17:50



EEEEWWWWW vomit TMI clive

Pasco

6,652 posts

257 months

Tuesday 20th March 2007
quotequote all
Ballistic Banana said:
clive f said:
pasco, face it mate, it probably sounds really loud since the doc removed you ear wax an belly button fluffhehehehe







enough fluff to make a pullover apparently


Edited by clive f on Tuesday 20th March 17:50



EEEEWWWWW vomit TMI clive



What do you expect from a Cockney Git BB

He will not know what TMI means btw tumbleweed



Edited by Pasco on Tuesday 20th March 21:02

clive f

7,259 posts

262 months

Tuesday 20th March 2007
quotequote all
sorry Simon, I know its too much info, but after reading pasco`s letter to dear deadrie in tha sun last week entitled " I`m a lonely fat deaf bastid" I thought bringing his problems out on the forum would be like a form of therapy.

sorry if anyone looks at their jumper and thinks of Pasco`s belly buttonboxedin


Edited by clive f on Tuesday 20th March 21:41

Pasco

6,652 posts

257 months

Tuesday 20th March 2007
quotequote all
How Dare you !!!

And to think i stood up for you when Jeffsy said you were a right Wa**er !!!!

Seems to me that you can not take the fact that your exhaust sounds like a Fart in a Colander yes and you will pass sound regs for all track days throughout the land !!

hehe

clive f

7,259 posts

262 months

Tuesday 20th March 2007
quotequote all
laughlaughroflrofllaughlaugh


Edited by clive f on Tuesday 20th March 22:10

Pasco

6,652 posts

257 months

Tuesday 20th March 2007
quotequote all
clive f said:
laughlaughroflrofllaughlaugh


Edited by clive f on Tuesday 20th March 22:10


Yes take that you F***** C***

clive f

7,259 posts

262 months

Tuesday 20th March 2007
quotequote all
perhaps your new name should be Fluffy roflroflrofl

Pasco

6,652 posts

257 months

Tuesday 20th March 2007
quotequote all
As in Fluffy Bunny you Cockney Git!!