Micra develops "throaty roar"

Eh???

How do i work out the cruising speed on my modified citroen ax. I does 128mph (on the gps display .... the speedo needle hits the 0mph stop).

Maybe an equation is in order:

Surely you don't mean this. The above reads as though your maximum speed was 65 and is now 55.

That may well be it. You could, I suppose, run it like this but you'll be using more fuel and making more noise, so you're as well to have it fixed.

Exhaust is blocked- either the baffles have moved or the wadding has come loose. Either way this is wots reducing power. A 1 litre micra should be able to do a good 80mph anyways, so if yours is all out at 65 then its got a problem.

Tim..

When I say "cruise", I mean the car is pottering along nicely, without any apparent strain on the engine and returning a good mpg.

Its a 1.0, but can normally do 75mph on a motorway run quite easily, but with more noise than my "cruising" speed.

Bruce

Tim, Where are the baffles to which you refer? At the top/front of the engine? As I say, a screw has corroded there, but it doesn't seem loose or in danger of dropping off...

Thanks Bruce

In the exhaust. Try