Silencer for competition use

[MikeB]

My 240 appears to have one of the MJP Turbo systems fitted, which has got a bit noisier in the past few days. There are no holes or leaks in the system, so I suspect that the baffles are stuck in the straight thru position.

Will be doing a hillclimb in three weeks, so I suspect that it won't pass the Noise Test (108dBa). Does anyone know if the Turbo system will pass this test, if I get a new silencer, or is there another silencer folks use.

For info it's a 2.5 inch system with only a back box.

Cheers

Mike

 

[johnymd]

I would think the turbo will provide some silencing which why a system for a turbo car can get away with only a rear silencer. Not familier with the "MJP turbo System" but I'm guesing it mates with the 280zx turbo kit?

 

[zman240uk]

108dba is pretty loud. The system on my car has a smallish single box and just about makes it under 105dba. As a back up I always take along a small bolt on silencer, essential for places like goodwood or combe where the local NIMBY's complain about the noise.

 

[camerashy]

scrunch up some chicken wire and bung the end of the exhaust? (seriously).

 

[jonbills]

If it helps, my car has the MSA 2.5" system which has a single back box - what they call the 'turbo muffler'.
It's about 100dba - It has passed scrutineering to 100dba at both castle coombe and bedford aerodrome.

Jon

 

[MikeB]

Cheers Jon

Ordered a new box today from Mike


Cheers Mike

 

[ben240z]

Have they gone soft over there now Mike.
When I was over for the speed weekend Kirkiston, craigantlet and Nutts corner there were complaints that the car was not load enough.
Have a good one

 

[MikeB]

Ben

I'm afraid the Fun Police from Colnbrook, caught onto the fact that we hadn't been doing them, so a Decree Absolute was issued and now they are carried out in compliance with the regs, and I won't say anymore than that !!

Craigantlet in three weeks, so looking forward to giving the car a little light exercise


Cheers

Mike