[Shotimes] RE: OT - Where to put EGT sensor

[Zach Leahy]

I have one on the 93 for tuning the motor... just to make sure the temps
don't get too high with the mix.  It will be a bigger issue when it becomes
a blower car.

Z


On 5/12/06, Paul L Fisher <sho@paul-fisher.com> wrote:
>
>   Thank you for that well reasoned answer. It is in line with some of the
> other stuff I heard so I'll probably go pre-turbo. The key is, 1600 F or
> less (constant) and the hottest spot is just before the turbo.
>
>
>
> Hopefully I'll have it all done for the Lapeer meet in the fall.
>
>
>
>
>
> Paul L Fisher
>
> Visit my website: http://www.paul-fisher.com
> SHOClub Member: http://www.shoclub.com
> Amsoil dealer: http://www.paul-fisher.com/oil
>   ------------------------------
>
> *From:* Zach Leahy [mailto:leahyz@gmail.com]
> *Sent:* Friday, May 12, 2006 12:01 PM
> *To:* ronporter@ameritech.net
> *Cc:* Paul L Fisher; shotimes@autox.team.net
> *Subject:* Re: [Shotimes] RE: OT - Where to put EGT sensor
>
>
>
> From my gas turbine engines class, in a standard turbine setup, the most
> concerned temp is at Tsub3 which is the inlet temp of the turbine.  This is
> what is going to push the material limits of the turbine as it is the
> highest.  As the gasses expend work through the turbine they decrease in
> pressure, and in temperature - i.e. heat is changed into work.  So I think
> your real concern is the temp going into the turbine, not at the outlet.
>
>
>
> With some math though you can calculate a very good approximation for the
> outlet temp if you know the inlet, or vice versa.  The high temps obviously
> have impact on the thinnest metal parts of the system, which are the tips
of
> the turbine wheel at the exducer.  That's the first thing that's gonna
> glow/melt.
>
>
>
> The system is really the same if you have a piston cylinder engine between
> the compressor and the turbine, or a simple combuster.  There are some
> changes, but the theory is still very much valid.
>
>
>
>
>
>
>
> Z
>
>
>
> On 5/12/06, *Ron Porter* <ronporter@ameritech.net> wrote:
>
> Why not get two..one each for pre- and post.
>
>
>
> With one, I would go pre-turbo. Gives you the raw reading off the engine,
> which IMHO is what really matters. Nothing much should really change
> post-turbo.
>
> Ron Porter
>
> _____
>
> From: Paul L Fisher [mailto:sho@paul-fisher.com]
> Sent: Friday, May 12, 2006 9:39 AM
> To: 'v8sho'; shotimes@autox.team.net
> Subject: OT - Where to put EGT sensor
>
>
>
> Since you guys are car guys and I trust your opinions, where do you think
> I
> should put the exhaust gas sensor on my TDI? I've heard good arguments for
> both pre and post turbo.
>
> Thanks!
>
> Paul L Fisher
>
> Visit my website: http://www.paul-fisher.com
>
> SHOClub Member: http://www.shoclub.com
>
> Amsoil dealer: http://www.paul-fisher.com/oil
>
>
>
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>
>
> --
> Zach Leahy
> Fort Wayne, IN
> 2006 R1200GS - Rock Red
> 1992 SHO MTX - Arrest Me Red
> 1993 SHO MTX - Green Racecar
>
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--
Zach Leahy
Fort Wayne, IN
2006 R1200GS - Rock Red
1992 SHO MTX - Arrest Me Red
1993 SHO MTX - Green Racecar