Posted: Fri Jun 10, 2011 7:46 pm
Hi Andrew
Some of the 911 guys have had similar issues in our Championship. I assume you do the noise test with your foot on the clutch, to cut any chatter from the gearbox? That is said to help a bit...It is also frustrating that every test seems to deliver a different result, I am not sure how well calibrated the equipment is. Mine has been tested anywhere between 98 and 105MB with a standard stainless silencer! It doesn't help when you are tested in a queue either... Incidentally, the quieter ones are normally when tested on the grass.
Other than that;
- Have someone take the silencer apart and carefully apply some exhaust wadding (clearly someone that knows what they are doing so there is no power loss). There is a fair bit of room in there (they are very basic, simple chambers). I am sure this would get you down a bit.
- Have an SC style system made, with a pre silencer at the back of the engine and a standard rear silencer (I think this would require a 'one in one out', rather than a 'two in one out' that you have now.
I have some other ideas if this isn't what you want to do - give me a bell and catch up if you have time.
Cheers
Wayne
Some of the 911 guys have had similar issues in our Championship. I assume you do the noise test with your foot on the clutch, to cut any chatter from the gearbox? That is said to help a bit...It is also frustrating that every test seems to deliver a different result, I am not sure how well calibrated the equipment is. Mine has been tested anywhere between 98 and 105MB with a standard stainless silencer! It doesn't help when you are tested in a queue either... Incidentally, the quieter ones are normally when tested on the grass.
Other than that;
- Have someone take the silencer apart and carefully apply some exhaust wadding (clearly someone that knows what they are doing so there is no power loss). There is a fair bit of room in there (they are very basic, simple chambers). I am sure this would get you down a bit.
- Have an SC style system made, with a pre silencer at the back of the engine and a standard rear silencer (I think this would require a 'one in one out', rather than a 'two in one out' that you have now.
I have some other ideas if this isn't what you want to do - give me a bell and catch up if you have time.
Cheers
Wayne