1.3 Exhaust

Hi Martyn

I was quite interested in this my self. Im not sure if a turbo exhaust will fit. But ive opted for getting a stainless steel one from Powerflow. You can choose the tip, muffler, even the sound the car makes. Worth a look up

 

interested too. I don't 'need' a new 1 but if it has a performance benefit I might treat the Copen to an upgrade.

 

There's spooky, had a 'ball park' quote from Powerflow at the weekend - £240.

As you have said you need to pick all of the bits to make it into what you want.

Regards.

 

I'd like a s/s exhaust and been thinking about since I've had the car.

I don't think the 0.7 exhaust will not fit as a direct bolt on as the cat exit is probably in a different location.

What performance do you want Binz? putting a big exhaust on a small 1.3 kills low and mid range torque. yes it will rev at the high end more easily and give you some more power. But thats only good if you floor it and keep the revs high like on a race track. Around town scenario and the car could be worse.

What's really needed for performance is a tubular exhaust manifold, not a cast one. This is probably losing more power than the exhaust system. I've looked into having one made but its not cheaper, seems dearer than an exhaust. Also the Cat may be losing some power also. Any one know what cpi the stock CAT is, 400? A 200 would be good coupled to a new manifold.

 

More responsive acceleration would be the main thing I'm after, as a bonus better economy is always welcome (I'm doing about 15,000 miles/year). My driving is mainly motorway (but not cruising, due to traffic), sandwiched between a bit of rural and town driving. It's not as sprightly accelerating out of corners round the lanes or away from junctions etc as my last few cars have been (but is more fun due to gokart suspension ).

 

Yes a good exhaust system which loses less power could then gain some fuel economy. But an exhaust that gives you a very revvy engine would burn more fuel as you'd tend to rev higher because of that ability. With an exhaust giving a revvy engine usually mean loss of lower/mid torque so you might end up having to give it more welly to get it going and use higher revs. This might not be that dramatic to notice but occurring not the less. Cruising at a constant speed on a motorway might give you a bit better mpg.

It would be responsive higher up but potentially a little more sluggish lower down.

I know someone with a Copen and a 2 inch exhaust (of sorts) from cat back and no silencer! its noisy, revs like mad but has lost loads bottom end.

Engines actually gain power and torque from having thinner exhausts not just wider. Its all about where you want it in the rev range. The same goes for the inlet side.

 

thanks for the wisdom, I think I'll save my money for something else.

 

By this I meant the engine would be responsive but the car would become sluggish to drive at lower revs (due to loss of torque)