Re: Re: refinishing muffler and negatives with no cat?
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Re: Re: refinishing muffler and negatives with no cat?



I was able to reach all four flange nuts with a long extension (I
think it was 12") from the front side of the cross member. Turned
without a cheater. 

This weekend I was able to compare my gutted converter against a stock
exhaust system. No comparison. Even if less efficient than a straight
pipe, is a gazillion times freer than factory. Is MUCH cooler too.

Re: fuel economy -- try mistiming your vehicle (the notches on my
Volvo block aren't labeled -- thank goodness I FINALLY stumbled across
page C:05:03) and compensating by cranking up the fuel mixture. Drops
to 13-14 mpg.

Bill Robertson
#5939

>--- In dmcnews@xxxx, Martin Gutkowski <webmaster@xxxx> wrote:
> Hi Andy
> 
> If you have a look at this article I wrote about exhaust gaskets I
went into some detail
> on removing the exhaust. Taking the cat out is quite difficult
because you have to remove
> the crossover pipe from the manifolds in order to access the upper
right cat mounting
> nut.
> 
> http://www.dmcnews.com/Techsection/exhaustgasket.html
> 
> As to refinishing the silencer, over here you can buy high
temperature paint in a silver
> shade - I did my heat stove with it till I decided to leave it out
anyway... I can't
> vouch for its lifespan though. I believe there's a ceramic coating
process but I can't
> see the point *personally*.
> 
> Martin
> #1458
> #4426
> 
> Soma576@xxxx wrote:
> 
> > Hey all,
> >
> > two questions:
> > 1. i want to refinish my muffler. it looks like it is rusty even
though it
> > really isn't since it's stainless.... i don't need it to look like
chrome, i
> > just want it to look like it is new again. is a muffler best
painted, or is
> > there a polishing job that can be done? i'd obviously bring this to a
> > specialist.
> >
> > 2. i'm interested in the catalytic converter straightpipe since i
live in a
> > state without emissions testing. it would be ideal to do this job
when i
> > refinish the muffler. is this a very difficult job? are the
bolts typically
> > quite rusty and solid? also - are there any downsides to removing
the cat
> > besides higher hydrocarbon emissions?
> >
> > any thoughts are welcome!
> > Andy






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