[Vwdiesel] VW 1.6 Diesel exhuast

[David Cook]

I can attest that a NA motor is very loud without a
muffler!

Last summer, I had a very steep driveway (from the
restaurant where I get my veggie oil!) knock off the
pipe going into my muffler.

It was very loud.  It didn't take me long to get it
into a place to have a new pipe welded in!

David


--- "Doyt W. Echelberger" <doyt at buckeye-express.com>
wrote:

> At 01:00 AM 4/21/2006, you wrote:
> >Ok, I'm new to the forum, but have read just about
> all the postings. My
> >question is simple, I want to increase the exhaust
> diameter from what
> >it is now to 2 or 2.5 inches. I figure if it helps
> the trucks, why
> >can't it help my NA diesel. Has anyone tried this,
> if so what were your
> >results. All suggestions are welcome.
> > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> 
> I made some different changes to my diesel exhaust,
> based on the same 
> premise. And maybe I can add to Loren's 'etc' post.
> 
> On my 1.6 TD (Jetta, 1985) I run a straight pipe all
> the way back from the 
> flange/downpipe.
> Removed muffler three years ago.
> 
> Diameter of the straight pipe is stock, but taking
> out the muffler was a 
> significant move in reducing back pressure, imo.
> 
> The sound is a little loud under hard acceleration
> as I wind up through the 
> gears, but it is reasonable at legal highway speed,
> and if I don't want the 
> noise I can keep my foot out of the throttle.
> 
> Certainly doing the same thing with a larger
> diameter pipe would be a 
> reasonable thing to try. I'd be interested in how a
> larger pipe would 
> affect the noise level in a no-muffler system. It
> might be noisier, because 
> it is closer to no pipe at all.
> 
> You were talking about a naturally aspirated engine,
> so I'd expect the 
> result to be much louder than with the TD. The turbo
> quiets the exhaust 
> considerably. Maybe a n.a. couldn't tolerate a
> straight pipe.
> 
> You might try loosening/removing the entire system
> of pipes and muffler, 
> and see how it runs that way, and then base your
> mods on what you see in 
> the test runs. Perhaps the tests could take place
> away from closely 
> monitored and inhabited communities.
> 
> Doyt
> 
> 
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> 


David Cook
Red '86 Cabriolet Diesel Powered
Red '90 g60 Corrado 
Brown and White '78 Westy Campmobile "Bear"
and others in various states of disrepair
Pictures here: community.webshots.com/user/superdave5599

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