purple peril progress

[Timrxmotors]

I don\'t really need a fan,that radiator is amazing,hot at top,and very cold at bottom.
Hole is so bonnet would shut,cooling is a bonus.

[antnicuk]

brap brap  = bridge port  

[MikeLMR]

brap brap = overlap ... either that or my mates Lada has a bridgeport and not a group A cam

I was pretty sure a large extend port would have a lope to the idle similar to a bridge ported engine

[BlitzBoy]

That turbo is huggggeee!!! cant wait to see it run at Rotorstock

[antnicuk]

oops.......  looks like my turbo II is gonna go Brap brap then:eek:

[g11ary]

Could you not of hammered a nice power bulge in to the bonnet instead of cutting the discreate air hole...

[MikeLMR]

I\'m sure if he had slammed the bonnet shut hard enough it would have fitted ...

[Timrxmotors]

Done 75 miles now,all is well.Air flow must be much more,as everywhere it is lean A/F\'s.I have so far put in 15% more fuel,and it wants more.Easy on a \'Microtech\' ecu,just press the button til it says 15%,try that on an Apexi!
Been stopped by the police already,he thought it was rather loud,so I said it wasn\'t broken,and is fine.The car didn\'t start for him to hear it when he asked,something to do with that plug I pulled from the ecu.                          
Does anyone Know the legal noise limit? Antinuk?

[antnicuk]

Hi Tim,
You know that isnt my specialised area,   but from memory, as long as there a no holes its ok for a roadside tug,  not sure if there is a decibel limit for mot\'s either.  I know there is for SVA but that wont effect you.  As long as you have a silencer and no holes you should be ok.

Does it still go Brap Brap?

[MikeLMR]

1. The vehicle shall be fitted with an exhaust system including a silencer such that the exhaust gases shall not escape into the atmosphere without first passing through the silencer.

     2. When -


(a) the vehicle is held stationary on a level surface such that there is an unobstructed area not less than 3 metres wide all around the vehicle; and

(b) the engine by which the vehicle is propelled is run at a constant rotational speed of 3/4 S, the noise measured at 0.5 metres from the exhaust outlet at 45 degrees to the axis of the outlet pipe in a horizontal plane, shall not exceed 101db(A).

[MikeLMR]

I think thats the SVA limits but you are welcome to search the HMSO site for yourself as it will also be in the construction and use regulations somewhere and I\'m pretty sure the SVA test will be based on those regulations anyway

http://www.hmso.gov.uk/

[antnicuk]

thats what the sva guide says,  they checked it when i sva\'d my kit car but there is no road side test for it.

[Brett]

Exhaust noise is subjective to the policeman or the MOT tester at the time.  The MOT book simply says it must be at an appropriate level for the car.  I think if a Policeman (correct me if I\'m wrong) deems your exhaust to be excessive they can ask you to get it changed, in much the way as if your number plate is dodgy.

[antnicuk]

With number plates there are specific measurements that need to be adheared to,  with exhausts there is no way of telling how loud something is without the correct measuring equipment.  Without a specific measurement an officer would look a bit silly in court trying to explain to the judge that it was too loud.

[WeasleRx7]

Hi, I did a little research on this matter too.  My interpretation on the matter is that basically there are no noise level limits for normal road cars.  As long as the exhaust pipe has not been modified after its been manufactured to make it louder, then you\'re within the law.  So if you buy a straight through pipe from a supplier/manufacturer it doesn\'t matter how loud it is... as long as you dont alter it to make it louder.