Do stainless sports exhausts do anything on diesel engines?

Post by **airhead** » 05 Apr 2007, 00:19

I was thinking of replacing my exhaust with a stainless sports exhaust. I have a 1.6 JX engine. Would it serve any purpose aside from the obvious anti-corrosion properties and the appearance. Would there be any improvement in power, and also would it sound good? I know theres quite a good noise from my engine when its under load now from the exhaust, but would a sports exhaust be just a stupid idea or is it worthwhile? Id be getting it done along with fitting an intercooler.

Post by **Westy.Club.Joker** » 05 Apr 2007, 08:37

Unbolt the standard rear silencer and run it with that off to see if you notice a difference, not a lot more noise. I think the turbo takes a lot of the noise out of it.
Turbos don`t like back pressure so a large diameter header pipe won`t do any harm, and a free-flow "silencer" as well.

Post by **thenaylortribe** » 05 Apr 2007, 11:27

ran my 1.9td aaz without box for a week last week...no noriceable noise increase..

Post by **Horza** » 05 Apr 2007, 12:22

Interesting. Did you percieve a performance increase?

Post by **andysimpson** » 05 Apr 2007, 18:13

mine has a straight through 3" pipe no silencer, sounds better and reduces turbo lag.

Post by **Simon Baxter** » 05 Apr 2007, 20:12

Be wary of stainless, it's more brittle than mild steel and more liable to crack with the vibration of a Diesel.

Post by **andysimpson** » 05 Apr 2007, 20:36

Simon Baxter wrote:Be wary of stainless, it's more brittle than mild steel and more liable to crack with the vibration of a Diesel.

I agree but if you get a flexi as close to turbo as possible this should make it last. I have made 2 exhausts now for td syncros out of stainless so will have to see how they hold up, they are the 2 most un reliable ones in the country so the exhausts should last forever

Post by **airhead** » 25 Apr 2007, 00:31

Hmm, I reckon Ill try taking the silencer off then to see what the difference is. If there is a worthwhile difference, Ill get a short pipe put on the van in place of the silencer and have the exhaust come out on the left instead of the right.

Post by **monsho** » 25 Apr 2007, 07:55

thinking at it from the other way, if I put on a quieter silencer am I going to get a decent reduction in noise, or does most of it come from the intake anyway? I guess this will strangle the turbo quite a bit as well yeah?