Author Topic: Vanagon TD EGT Observations - Questions (Read 2573 times)

myke_w · « **on:** January 31, 2007, 12:52:55 pm »

Hi all, just figured I'd mention that my JX Vanagon is now rocking an
EGT gauge, and I have a few observations and questions..

Also, excuse the redundancy for those who read the Vanagon diesel group too, I posted the same thing over there..

I have the isspro R3607TR gauge from eguages.com with a thermocouple
/probe and 20' extension cable for under 150 for everything shipped.
link

http://www.egauges.com/vdo_ind.asp?Type=Pyrometer&Series=EVA_R&PN=R3607TR

I have the probe mounted right over the turbo inlet in the exhaust
manifold (I run the true TD Vanagon manifold and turbo, like a quantum
- and a k14 charger).

-Fuel is bumped a bit (maybe a 1/4 turn), no other mods.

-I have the Waste gate blocked all the way off and the BOV disabled.

-I am not intercooled (yet)

-only smokes on WOT, and not that much

Observations:

Firstly, wow these gauges are instant to react, as soon as you have
your foot into it, it's climbing.. foot off, sinking - very fast response.

I notice that when cruising around on flat land at 65 or so, I'm
running 800-900F.

When I pull a sort of long hill (1/2 mile 5% grade) starting from
highway speed at WOT it really doesn't go above 1050.

If I pull the same hill from a dead stop at WOT, and run it out of
gear on every shift (to redline pushing 15-16 psi) I get it to eek up
near 1200 but it never passes 1200 (this is when I am really flogging it).

Questions:

Is what I am seeing normal?

Am I at a fairly conservative setting?

What is a safe sustained pre-turbo exhaust temp for the 1.6TD?

What is the max burst safe temp?

Thanks for any and all comments..

Benjamin · « **Reply #1 on:** January 31, 2007, 02:43:00 pm »

i think this is stock temperature, +-1250max is used, never come to long over 1500F or you will become a engine failure

Greetz, Benjamin

myke_w · « **Reply #2 on:** January 31, 2007, 02:44:31 pm »

Really? 1500? :shock:

So sustained temps of

are safe, say - prolonged highway cruising?

Benjamin · « **Reply #3 on:** January 31, 2007, 02:50:33 pm »

well, thats what i readed previously and several times on the board.

the higher the egt's, the less safe :wink: so you can do a quarter mile with 1500F, high way speeds with long time the pedal to the metal you better go for 1250 than 1500...

(Please say if not true)

Greetz, Benjamin

myke_w · « **Reply #4 on:** January 31, 2007, 03:01:04 pm »

Cool, well I'm hardly rockin 1000 when balls out at 80 with a headwind! :lol:

Just cresting the big hill here in town I only crack 1200 so I think I'm pretty good.

On the topic, whats the highest sustained psi one would want to run for best turbo life.. I run syn 5w-40 too if that makes any difference.

DVST8R · « **Reply #5 on:** January 31, 2007, 07:39:45 pm »

I have seen in excess of 1800F and my turbo is still spining, but I would say that 1500 is your max that you don't want to exceed for any length of time. :wink:

myke_w · « **Reply #6 on:** February 01, 2007, 09:56:54 am »

Any ideas on the boost limits of a stock mechanical fiber head gasket?

Also, I hear all kinds of good things here about the k14, what is the most sustained boost one would want to run on this turbo?

foxracer1 · « **Reply #7 on:** February 01, 2007, 11:24:51 pm »

My NA is usually around 800-1000 flat 65-76 mph highway. Just had it up 1400 tonight! I think i should take it easy with the lack of boost. I'm concerned i am not getting an accurate reading. I used a hole in the corrado manifold that is a test port for emmisions or something. It sits between the two ports. Im worried that there isn't enough fow past the probe. I wish i would have taken pics before i installed it.