which is the best catalyst for arround 500 bhp?

[Thor]

hello!

can anybody tell me which is the best catalyst (100, 200 or 300 cells) for arround 500 bhp?

thanks
Sascha

 

[paz]

No one I know over here, particularly with the larger BHP cars uses one matey.

Paz

 

[antgtir]

Out of the three i would presume the one with most cells flows the best?

As stated alot of the people here do not use a cat, only on its "special day" i.e. MOT time :lol:

Ant.

 

[Braveheart]

UK emmissions regs means we can run without CAT... not sure about the laws in Germany though.

 

[MarkTurbo]

Out of the three i would presume the one with most cells flows the best?

The higher the cpsi number the less flow you get ;-)

I'm sure i read somewhere that even a 3 inch sports cat with 100 cpsi is only suitable for around 375bhp!

 

[DanDud]

UK emmissions regs means we can run without CAT... not sure about the laws in Germany though.

Anything built before Dec 1992 IIRC

 

[Thor]

UK emmissions regs means we can run without CAT... not sure about the laws in Germany though.

yes that is the problem here in germany. we do not run without cat because than the police can stop us! so i have a 3 inch turbo back system and in theory i think 100 cells must have more flow as 200 or 300 cells?!

 

[red reading]

you need to know how many "cells per square inch" the less cpsi the better for flow.