N power s/s muffler

[DJL]

oops, I will have to think of something else.

[pcmx5]

The power difference between these cars on the dyno is not always because of mods, what about if they have worn spark plugs and leads or one car has 200,000km on it. Some motors are also just freaks.

You are right to a degree, and the difference can be 3-4 RWKW, but I have done enough before and after testing on the same cars to say that a good catback ( eg Town and country) will give between 6-9 RWKW.No other mods between runs.

That's same car same day run one stock, run two cat back.

There were three NB8b's at the Vic Dyno day and the results again support that.

It is easy to always point to individual differences bbut when you get these sort of results it is fairly conclusive, a decent catback works and it would also appear that a high flow steel cat has advantages too from our results.

I am really busy at work at the moment but will get around to doing the full write up I promised on the Vic Dyno day as soon as i can.

Peter

[sliq]

very interesting observations..

so when are we sydney siders gonna do a dyno day?