[Vwdiesel] Egt for 1.6td

[Andrew .Libby]

Any specific max temperature drop specification pre to post turbo must take
into consideration the max boost (or better yet, max E.M.T.) that someone
is running and the efficiency of the turbo.  It is, at best, misleading to
give a specific max temperature drop without giving at least those two
factors.

The temperature drop from pre to post turbine will be somewhat greater than
but similar to the temperature rise pre and post compressor.  Obviously if
one person is boosting 15 psi, and another is boosting 10 psi, then their
pre and post compressor temps and the pre and post turbine temps will be
dramatically different.  Similarly, one person running a dinky GT15 and
another running a laggy K24 will see quite different pre/post turbine and
pre/post compressor temps.

Since the pre-turbine temp is far more important than the post turbine temp
and the only reasonable way to determine the difference would be to run
both and compare on each specific turbo setup, I've always found it much
easier to just install it pre-turbine...


On Thu, Jan 23, 2014 at 8:26 AM, GMac999 <GMac999 at yahoo.com> wrote:

> I know with several diesels that I've had, then temperature drop pre-turbo
> to post-turbo has been max of 250 F.  I set my fueling at a max temp of
> 1150
> F under full boost, full load so that I don't have to monitor the exhaust
> temp all the time while pulling hills.
>
> GregM
>
> -----Original Message-----
> From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
> Behalf Of lbaird119 at aol.com
> Sent: Thursday, January 23, 2014 12:19 AM
> To: libbybapa at gmail.com; teacher525 at hotmail.com
> Cc: vwdiesel at vwfans.com
> Subject: Re: [Vwdiesel] Egt for 1.6td
>
>
>  Having seen the Isspro pre and post turbine gauges.  I believe it was 150F
> difference in the temps.  May have been 200 F but 150 sticks in my head.
> The same gauges, just different location of the green, yellow and red
> bands.
> Temp has to drop across the turbine since energy is being removed.
>
>   I ran my Dasher at 1250F max boost.  Only ran it there for 20 seconds or
> so, at a time.  Otherwise I kept it to about 1150F.  I've had that engine
> apart a couple times (still currently is with a cracked head bolt hole) and
> nothing bad has  happened to it from heat.
>     Loren
>
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