New Cruiser Toy!!!

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Dec 10, 2008
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Benders, OZ.
I just received this baby today. Took about three weeks to arrive from the US. Bit of a wait but well worth it. Now to mount the thermocouple pre or post turbo?

So what do you reckon? I was thinking post as its easier to install and i dont really want to be running EGT's to the max. I think about 1050F is about as higher temp as you would want to run a 13B-T post turbo.........correct? Is there a good place to fit the thermocouple post turbo to a 13B-T dump pipe?

Cant wait to get it in the cruiser. It will look good next to the boost gauge. Both Autometer sport comp 2 5/8" guages.

Yippee:clap:

Gav.
PyroGauge.jpg
 
hmmm 600 degrees in the box, did you have it in the oven???

lol

best thing you could ever buy for your truck man!!!

Pre turbo all the way!
 
Last edited:
1200 and under is fair game

we used to keep the aluminum pot in the foundary for gravity fed cast iron moulds at 1400 degrees!!!

that being said my N/A 3B endured temps there and beyond untill I got it on it's 19th year!
 
Thanks Eric,

I have been doing heaps of searching on the pro's and con's of pre and post turbo. The only thing about pre turbo is the slim chance that the tip of the probe could burn off and enter the turbo housing. However, I have only read that people are wary of this but haven't seen or read any evidence that this is going to happen. Autometer gauges are good quality so I hope this doesn't happen.

The only thing I haven't found yet is where to mount the probe. I haven't had a look at the exhaust manifold yet but when I do there will probably be a likely looking place I supose.

Where, pre turbo, did u mount yours? I'm thinking an inch or two back from the turbo/exhaust manifold flange. Am I in the right ball park?

Cheers mate,

Gav.
 
The idea is to locate the probe at a point that can measure an average of all the cylinders EGTs, usually at a central collector point in the exhaust manifold- with the probe tip in the center, where temperatures are a maximum. Given there is no technical data relationship I know of between the temperature differences pre- and post turbo you still would be guessing what the actual pre-tubo EGTs are. I have heard 300- 350 F difference - but how was this determined ??

I hooked a vacuum cleaner to my manifold end with turbo off to collect all the drilling bits and tapping residue. You do not want anything left in there when you fire her up. You will be astonished how fast EGTs increase when climbing a grade, especially when loaded. It also save me fuel as I can shut the engine down more quickly now - since I know the EGTs fall more rapidly than what I have been told.
 

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