Fire Extinguisher

[pog]

For track days, the extinguisher needs to be within reach.

Generally, they accept the extinguisher by the centre console or down by the front passenger seat. It also has to be very secure otherwise the scruitineer won't accept you on the track.

[hazrd]

Trust me, it won't move one bit that's why I utilized all three bolt points for extra security.
As for removing the back seats completely, I'm not that interested in getting the fastest time or whatever, just out to have a bit of fun.

If I want to start chasing seconds I'll consider getting rid of them then look at the same spot Greg's is in if I can make it work

[leitch]

Other great thing with the back seats out is the lift off oversteer!

Definitely too noisy thiugh for day to day. It's like having the windows down haha.

[kaanage]

hazrd is tall enough to reach the extinguisher if he were to mount it in the boot!

As for the lift off oversteer, lightening the rear definitely helps with that although as well as helping point the car, this can also make the car unstable under brakes (I could go on to contaminate this thread with yet another plea for info about braking stability, SEAT bushes and static/dynamic toe out)

[flat6]

I noticed without the back seats you can hear everything in the rear tire well, the back seats are the noise dampers for the whole rear of the car..

Would be a good dynamat test to see how much improvement you get from the stuff.

[kaanage]

I've tried lining the wheel well etc with carpet underlay and the difference was minimal. I notice extra noise even with just the rear shelf removed.

[noone]

carpet unerlay is not a noise barrier.

Have a read on noise treatments, some absorb, some block. I used something like dynamat, but cheaper and a 6mm medium density closed cell foam, as a barrier. Made a big difference. Used it on the passenger side floor, in front of the doors, cover where the cables for the doors pass through, the hole behind the side mirror. I used the dynamat like stuff to add mass to large resonating panels and blocking cable access holes, etc.

Over all, made a huge difference, but I think to get a reasonable result, you've got to be willing to spend atleast a day and spend atleast $100 and well upwards to get it done well. I added about 6kg to my car, happy with the results, even the stock speakers in the doors sound better.

[kaanage]

It works fine for some frequencies but obviously not the ones in cars (and I'm using the heavy duty industrial stuff, not the cheap, çrappy eggshell $hit that they supply for free with your carpet install).

I have a friend who builds speakers as a business and he uses the same carpet underlay (amongst other materials) to dampen internal reflections in his cabinets.

BTW If you use a subwoofer and and head unit/amp that allows bass redirection, you don't need to line your doors. Nobody can understand the sound quality in my car after I tell them that the drivers are stock but the bass has been removed from them.