Date: Fri, 14 Feb 2014 14:57:21 -0500
Reply-To: Jim Akiba <syncrolist@BOSTIG.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jim Akiba <syncrolist@BOSTIG.COM>
Subject: Re: Exhaust Bushing Inner Weave Premature Failure
In-Reply-To: <BLU177-W1689BA0E3A1F2FEB67A49BE0920@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1
Yes, but both are significantly higher than NA
On Tue, Feb 11, 2014 at 8:17 PM, James <jk_eaton@hotmail.com> wrote:
> Isn't the temperature of the exhaust coming out of the turbocharger lower
> than the temperature of the exhaust coming in? After all, that's where the
> turbine gets the energy to compress the air over on the intake side.
>
> James
> Ottawa, ON
>
>> Date: Sun, 9 Feb 2014 15:44:55 -0500
>> From: syncrolist@BOSTIG.COM
>
>> Subject: Re: Exhaust Bushing Inner Weave Premature Failure
>> To: vanagon@GERRY.VANAGON.COM
>
>>
>> It reduces noise somewhat for sure, but wear goes up since temps are
>> much higher. Also with higher EGTs mufflers behave slightly
>> differently since the hotter gases also behave/flow differently. For
>> most absorption style mufflers it's not a big deal, but for resonators
>> it can shift the range where they cancel.
>>
>> On Sun, Feb 9, 2014 at 3:39 PM, Neil N <musomuso@gmail.com> wrote:
>> > Good points. And that's interesting re bolted flanges. I always
>> > assumed they were there *only* to help with servicing the exhaust.
>> >
>> > So with the TD, the obvious purpose aside (turbo boost), if I were to
>> > assume that the turbo dampens exhaust pulses, does this dampening
>> > reduce wear and tear on the exhaust system or just reduce exhaust
>> > noise?
>> >
>> > Neil.
>> >
>> > On 2/9/14, SDF ( Scott Daniel Foss ) <scottdaniel@turbovans.com> wrote:
>> >
>> >
>> >> About the I4 diesel set up ...
>> >> for turbo diesel conversions mounted ala stock Diesel Vanagon ( which I
>> >> strongly recommend ..doing it the way VW did ..engine tilted to the
>> >> left
>> >> at 50 degrees )
>> >> all I have ever done is reproduce the stock DV system *exactly* ..
>> >> just in bigger pipes and with a glass pack, and I can't think of a case
>> >> where that did not last just 'forever' ..
>> >> and ..
>> >> one would think an inline 4 gas would have less vibration than an
>> >> inline
>> >> 4 diesel.
>> >>
>> >> I've never even put a flex section in any exhaust system , just never
>> >> needed to.
>> >
>> >> in my world, all pipe to muffler and pipe-to-cat junctions are bolted
>> >> flanges, per stock arrangement and never welded ...the junctions likely
>> >> allow expansion and slight movement, further reducing tendencies to
>> >> crack.
>> >>
>> >> Readers may recall one of my engine conversion mottos ..
>> >> "Do what the manufacturers do."
>> >>
>> >> When they've been doing something the same way for decades ..you know
>> >> it
>> >> works.
>> >> Why reinvent the wheel, aye ?
>> >
>> >
>> >
>> >
>> > --
>> > Neil n
>> >
>> > Blog: tubaneil.blogspot.ca
>> >
>> > '88 Westy http://tinyurl.com/c8rlw6p
>> >
>> > '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>> >
>> > Vanagon VAG *Gas* inline-VR Engine Swap Group:
>> >
>> > http://tinyurl.com/d7gd5ej
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