Crazy Gardai

If they cant get you on one thing they will try any thing to get you.
I answered them back once telling them.
You can go into the bus lane at certern times they dident like that.
 
quited form cronin_j on midnightclub.ie
So the Original Council Directive that dealt with this sound testing is: DIRECTIVE 70/157/EEC

This then was ignored by most countries and became more comprehensive in 2007 by the last amendment: 2007/34/EC.


Then only on the 27th of June last year (08) did it become transposed into Irish law under the Statutory Instrument S.I. No. 195 of 2008 EUROPEAN COMMUNITIES (MECHANICALLY PROPELLED VEHICLE ENTRY INTO SERVICE) (AMENDMENT) REGULATIONS 2008
So that’s no really relevant to us unless you were caught last year before 27th June.

So what does this mean to the Modifiers like us?: Basically they have put a stamp on the Maximum Noise Level in decibels.

The table here shows:

SOUND LEVEL OF MOVING VEHICLES
Limiting values
The sound level measured in accordance with the provisions of Annex III shall not exceed the following limits:
Vehicle categories: Values expressed in dB(A)
Vehicles intended for the carriage of passengers, and comprising not more than nine seats including the driver's seat | 74dB |
Vehicles intended for the carriage of passengers and equipped with more than nine seats, including the driver's seat; and having a maximum permissible mass of more than 3,5 tonnes and:
with an engine power of less than 150 kW | 78dB |
with an engine power of not less than 150 kW | 80dB |
Vehicles intended for the carriage of passengers and equipped with more than nine seats, including the driver's seat; vehicles intended for the carriage of goods:
with a maximum permissible mass not exceeding 2 tonnes | 76dB |
with a maximum permissible mass exceeding 2 tonnes but not exceeding 3,5 tonnes | 77dB |
Vehicles intended for the carriage of goods and having a maximum permissible mass exceeding 3,5 tonnes:
with an engine power of less than 75 kW | 77dB |
with an engine power of not less than 75 kW but less than 150 kW | 78dB |
with an engine power of not less than 150 kW | 80dB |

However
- the limit values are increased by 1 dB(A) if they are equipped with a direct injection diesel engine,
- for vehicles with a maximum permissible mass of over two tonnes designed for off-road use, the limit values are increased by 1 dB(A) if their engine power is less than 150 kW and 2 dB(A) if their engine power is 150 kW or more,
- for vehicles in category 2.1.1, equipped with a manually operated gear box having more than four forward gears and with an engine developing a maximum power exceeding 140 kW/t and whose maximum power/maximum mass ratio exceeds 75 kW/t, the limit values are increased by 1 dB(A) if the speed at which the rear of the vehicle passes the line BB' in third gear is greater than 61 km/h.
Click to expand...
 
Testing your car can take the form of two tests 1. A moving Test and 2. (the more likely) Stationary test.

MOVING TEST
At least two measurements shall be made on each side of the vehicle. Preliminary measurements may be made for adjustment purposes but shall be disregarded.
The microphone shall be situated 1.2 metres above ground level at a distance of 7.5 metres from the path of the vehicle's centre line, CC, measured along the perpendicular PP" to that line (Figure 1).
Two lines AA" and BB", parallel to line PP" and situated respectively 10 metres forward and 10 metres rearward of that line, shall be marked out on the test track. Vehicles shall approach line AA" at a steady speed, as specified below. The throttle shall then be fully-opened as rapidly as practicable and held in the fully-opened position until the rear of the vehicle (1) crosses line BB" ; the throttle shall then be closed again as rapidly as possible.
The maximum sound level recorded shall constitute the result of the measurement.

Vehicles with no gearbox
The vehicle shall approach line AA" at a steady speed corresponding to the lowest of the three following speeds: - an engine speed equal to three-quarters of the engine speed at which the engine develops its maximum power;
- an engine speed equal to three-quarters of the maximum engine speed permitted by the governor;
- 50 kilometres per hour.

Vehicles with a manually operated gearbox
The second gear in the gearbox must be engaged if the vehicle is fitted with a two-speed, three-speed or four-speed gearbox;
The third gear in the gearbox must be engaged if the box has more than four gears;
if the transmission has a double gear ratio (transfer gearbox or two-speed rear axle assembly), the gearbox must be engaged in the ratio allowing the highest vehicle speed.
The vehicle shall approach line AA" at a steady speed corresponding to the lowest of the following three speeds: - an engine speed equal to three-quarters of the engine speed at which the engine develops its maximum power;
- an engine speed equal to three-quarters of the maximum engine speed permitted by the governor;
- 50 kilometres per hour.

Vehicles with an automatic gearbox
The vehicle shall approach line AA" at a steady speed equal to the lowest of the following two speeds: - 50 kilometres per hour;
- three quarters of the maximum speed.
Where there is a choice, the "normal" selector position for town driving is to be used.
Interpretation of results To take account of inaccuracies in the measuring instruments, the result obtained from each measurement shall be determined by deducting 1 dB (A) from the meter reading.
The measurements shall be considered valid if the difference between two consecutive measurements on the same side of the vehicle does not exceed 2 dB (A). (1)If the vehicle includes a trailer or semi-trailer, these shall not be taken into account in determining when line BB" is crossed.

The highest sound level measured shall constitute the test result. Should that result exceed by 1 dB (A) the maximum permissible sound level for the category of vehicle tested, two further measurements shall be made. Three of the four measurements thus obtained must fall within the prescribed limits

Measurement of Stationary vechicles
Measurement of noise of stationary vehicles Position of sound-level meter
Measurements shall be made at at a distance of 7 metres from the nearest surface of the vehicle.
The microphone shall be situated 1.2 metres above ground level.

Number of measurements
At least two measurements shall be made.

Vehicle test conditions
The engine of a vehicle without a speed governor shall be run at three-quarters of the rpm speed at which, according to the vehicle manufacturer, it develops its maximum power. The rpm speed of the engine shall be measured by means of an independent instrument, e.g. a roller bed and a tachometer. If the engine is fitted with a governor preventing the engine from exceeding the speed at which it develops its maximum power, it shall be run at the maximum speed permitted by the governor.
Before taking any measurements, the engine shall be brought to its normal running temperature.
Click to expand...
 
Interpretation of results
All sound-level readings recorded shall be given in the report.
The method used to calculate the engine power shall also be shown, where possible. The state of loading of the vehicle must also be given.
The measurements shall be considered valid if the difference between two consecutive measurements on the same side of the vehicle does not exceed 2 dB (A).
The maximum figure recorded shall constitute the result of the measurement.


Conditions of measurement
Measurements shall be made on unladen vehicles in a sufficiently silent and open area (ambient noise and wind noise at least 10 dB (A) below the noise being measured).
That area may take the form, for instance, of an open space of 50-metre radius having a central part of at least 20-metre radius which is practically level, surfaced with concrete, asphalt or similar material, and not covered with powdery snow, tall grass, loose soil or ashes.
The surface of the test track shall be such as not to cause excessive tyre noise. This condition applies only to measurement of the noise made by vehicles in motion.
Measurement shall be carried out in fine weather with little wind. No person other than the observer taking the readings from the apparatus may remain near the vehicle or the microphone, as the presence of spectators near either the vehicle or the microphone may considerably affect the readings from the apparatus. Marked fluctuations of the pointer which appear to be unrelated to the characteristics of the general sound level shall be ignored in taking readings

For example
Toyota chaser 1JZ-GTE engine produces an output of 210kW allowing you a db level of 80dB
A Toyota Chaser/Supra engine of 2JZ-GTE engine produces an output of 206kW allowing you a db level of 80dB
A Glanza V which has the 4E-FTE with an engine output of 97kW so your level would be 74dB
Honda’s B16a Engine has an output of between 110kW and 130kw (depending on number) so your level would be 74dB
Hondas B18c Engine (Type R) has an output of 150kW so your allowance would be 80dB

If your Lucky to be flying around in a K20 Conversion the K20 Engine puts out roughly 165kW so your over the 150kW limit so your allowance is 80dB

If your beating around in a Twin Cam Toyotas 4A-GE (16-valve) produces 96–103 kW so your level is 74db. If it has the 24Valve Black top then that produces 121kW so that’s still 74dB

If your Driving a Pulsar VZR N1 the engine has an output of 147kW so your just under the 150kW limit and your allowance is 74db
Click to expand...
 
Quote from Silverbullit

Measurement of Stationary vechicles
Measurement of noise of stationary vehicles Position of sound-level meter
Measurements shall be made at at a distance of 7 metres from the nearest surface of the vehicle.
The microphone shall be situated 1.2 metres above ground level

That makes sense to me now why my car was so close to the legal limit , the bright spark was with in one metre of the back of the car :icon_nana:
 
tommy 555 said:
Quote from Silverbullit

Measurement of Stationary vechicles
Measurement of noise of stationary vehicles Position of sound-level meter
Measurements shall be made at at a distance of 7 metres from the nearest surface of the vehicle.
The microphone shall be situated 1.2 metres above ground level

That makes sense to me now why my car was so close to the legal limit , the bright spark was with in one metre of the back of the car :icon_nana:
Click to expand...
We dont stand a chance if the boys in blue dont even know how to use the device some of them are probably sticking them into the exhaust itself imo if they are going to enforce this i hope they wont but if they are it should be tested at the nct and put on the cert what ehaust it had on for the test and what sound it put out they could even engrave a code into the underneath of the exhaust to proof its the same one that passed the test at least the people using them readers will be trained .
 
lads use should print off all the info above and next time you get stopped hand them a copy and see what the reaction is from them
 
if ya could afford to go to court it would be a laugh to wait and produce it then !!
 
You must log in or register to reply here.
Back
Top