Sound Generator Modification
- Thread starter sk93
- Start date
Z4 Coupe said:That makes me feel loads better
I might try and locate it from inside the cabin just to make 100%.
It sounds great but mine seems a little different to everyone else's. It seems to peak noise wise at 5000rpm then tail off.
I have removed mine for this very reason - although I liked the noise, when the noise tailed off it gave the impression that the rate of acceleration was slowing down. I have the 3.0si engine - anyone else have the same or know how to do this with noise right up to the redline?
Yeah I could do with pics for this too?
For the facelift 3.0, this thread might help, though it is not about the sound gen mod :
http://www.z4-forum.com/forum/viewtopic.php?f=34&t=36349&hilit=+DISA
The 3rd from last pic shows the sound generator removed sitting on top of the engine, the 2nd last one shows where it attaches to the bracket which has the engine side tube on the other side, the last pic shows the end of the tube (above my thumb, still attached to the bracket) with one of the bits of foam inside. If you follow that tube back to the bulkhead then you will find the other end that just pulls out, where you will find the other bit of foam. Most people take the bit at the bulkhead out, not the bit at the end in the photo.
Hope that helps
http://www.z4-forum.com/forum/viewtopic.php?f=34&t=36349&hilit=+DISA
The 3rd from last pic shows the sound generator removed sitting on top of the engine, the 2nd last one shows where it attaches to the bracket which has the engine side tube on the other side, the last pic shows the end of the tube (above my thumb, still attached to the bracket) with one of the bits of foam inside. If you follow that tube back to the bulkhead then you will find the other end that just pulls out, where you will find the other bit of foam. Most people take the bit at the bulkhead out, not the bit at the end in the photo.
Hope that helps
Just done it. Took about 3 mins 
Not convinced by the sound. It is rather loud!! I only did the bulkhead foam too
Not convinced by the sound. It is rather loud!! I only did the bulkhead foam too
Done it ta mate. Once I got in there it was pretty obvious :roll:
Not sure I like the sound though. Only took the one bit out but it still sounds pretty loud
Not sure I like the sound though. Only took the one bit out but it still sounds pretty loud
Loud is good :evil:
Should only be intrusive under enthusiastic acceleration ; at other times it should sound pretty normal. Unless someone has already removed a the bit at the other end ? When I took both out it was waaaaay to loud, almost made my ears bleed under full load
Should only be intrusive under enthusiastic acceleration ; at other times it should sound pretty normal. Unless someone has already removed a the bit at the other end ? When I took both out it was waaaaay to loud, almost made my ears bleed under full load
i took both bits of foam out, stuck wiv it for a couple of weeks but the noise was too much, so put back the foam nearest the engine block, now the noise is just right for me but only with heavy acceleration.
Yeah it's only under heavy load but its the tone that doesn't sound right to me. I did just come out of a 993 though
