Hi everyone, here in the UK there are very few people that have actualy tested different exhaust configurations. My car goes into a very well respected exhaust fabricating company tommorrow (wednesday 17.03.04) to have some exhausts made with different configurations and a cat removal pipe made. The 8 has 2 O2 sensors, fore and aft of the cat. To remove the cat I have been told that we will need to use an O2 simulater, if not the aft sensor will make the car run wrong and give adverse power figures? But does anybody know the specs for the simulater i.e voltages?

I am trying to figure this out as here in the UK there are very few people that have even slightly touched on this area with the RX-8, so not much info available. There we be 3 different systems made for the car with dyno tests. We are planning a full race system (very little sound deadening), a road system and then the cat removal pipe. From this we will be able to see from the 6 different configurations:

1: Standard.
2: Standard back box, with cat removal.
3: Race back box.
4: Race back box, cat removal.
5: Road back box.
6: Road back box, cat removal.

What each does to the power in different places on the power curve etc etc. They will all be dyno'd on the same day, so this will show us the best configuaration. All will be posted once done.

The only problem so far is that by not 'fooling' the rear O2 sensor the car might over or under fuel and give wrong power readings?

These are all speculations as we do not know anything about this car in terms of performance mods.

Can anybody help with any info on any of this? Please.


Ant.

 

use the search feature on top and you will find ample information on the O2 simulator. and there is even a thread as to where to buy them and maybe once you find that you can call the company and ask them all that information about voltages and so forth...

enjoy and keep us posted on results