Noise
Author
Discussion

DHGTR

Original Poster:

1,196 posts

267 months

Thursday 26th August 2010
quotequote all
Just thought I would post this for a bit of info.

i had my exhaust noise for the LS2 and new exhaust measured this week at JP exhausts.

We used two measuring devices and did the test twice.
At 2/3 max power (4k rpm) one device measured 97dba, the other 98dba. We did the test twice and got the same readings both times +/- 0.5dba.

The test was carried out outdoors but in a fairly enclosed area, so probably the readings were slightly higher than they should have been.

At full scream (6.6k) the noise was up to 105dba.

I am extremely pleasantly surprised and very pleased with these results.

Dave


738 driver

1,202 posts

217 months

Thursday 26th August 2010
quotequote all
How did you carry out the 6600 test Mr H ?

V8Dom

3,547 posts

226 months

Thursday 26th August 2010
quotequote all
DHGTR said:
Just thought I would post this for a bit of info.

i had my exhaust noise for the LS2 and new exhaust measured this week at JP exhausts.

We used two measuring devices and did the test twice.
At 2/3 max power (4k rpm) one device measured 97dba, the other 98dba. We did the test twice and got the same readings both times +/- 0.5dba.

The test was carried out outdoors but in a fairly enclosed area, so probably the readings were slightly higher than they should have been.

At full scream (6.6k) the noise was up to 105dba.

I am extremely pleasantly surprised and very pleased with these results.

Dave

you should have said I live in macclesfield i would have come up???

Dom

DHGTR

Original Poster:

1,196 posts

267 months

Friday 27th August 2010
quotequote all
738 driver said:
How did you carry out the 6600 test Mr H ?
I pressed the pedal on the right and watched the needle move around the numbers. Typo though should have been 6.5k

DHGTR

Original Poster:

1,196 posts

267 months

Friday 27th August 2010
quotequote all
V8Dom said:
DHGTR said:
Just thought I would post this for a bit of info.

i had my exhaust noise for the LS2 and new exhaust measured this week at JP exhausts.

We used two measuring devices and did the test twice.
At 2/3 max power (4k rpm) one device measured 97dba, the other 98dba. We did the test twice and got the same readings both times +/- 0.5dba.

The test was carried out outdoors but in a fairly enclosed area, so probably the readings were slightly higher than they should have been.

At full scream (6.6k) the noise was up to 105dba.

I am extremely pleasantly surprised and very pleased with these results.

Dave

you should have said I live in macclesfield i would have come up???

Dom
I f i'd known you were there Dom I would have got in touch.

V8Dom

3,547 posts

226 months

Friday 27th August 2010
quotequote all
DHGTR said:
V8Dom said:
DHGTR said:
Just thought I would post this for a bit of info.

i had my exhaust noise for the LS2 and new exhaust measured this week at JP exhausts.

We used two measuring devices and did the test twice.
At 2/3 max power (4k rpm) one device measured 97dba, the other 98dba. We did the test twice and got the same readings both times +/- 0.5dba.

The test was carried out outdoors but in a fairly enclosed area, so probably the readings were slightly higher than they should have been.

At full scream (6.6k) the noise was up to 105dba.

I am extremely pleasantly surprised and very pleased with these results.

Dave

you should have said I live in macclesfield i would have come up???

Dom
I f i'd known you were there Dom I would have got in touch.
I work about 1/2 a mile from JP....I m supprised no one said they had seen an ultima about as I hear when Kyle is in town!!.