Whee do I install the pyro thermo dealie?

[poolguy]

I will be installing the guages tomorrow. Pyro, trans temp, vac/boost, oil pressure, and engine temp.
I'm good on all but two; where do I install the pyro thing (I know it goes before the turbo) but how close to the manifold or to the turbo?
Also if I remember correctly the sending unit for the trans temp goes in a test plug hole in the trans. Where is it?
Thanks again,

Chuck

 

[BROWNIEBOY525]

i would put the pyro in either one of the exhaust manifolds. you want to get it as close to the pistons as possible because thats what you want to protect. if you look at the manifold there is a flat spot that is a good spot to put it. the test port on the trans if i remember is on the drivers side of the trans. its on the side about half way back

 

[6 Nebraska IDIs]

Why is the pyro sender post turbo on the ATS kits?

 

[forcefed]

I put my pyro on the driverside manifold between the 2nd and 3rd exhaust port back. Also remember to use grease to catch all the metal shavings while drilling and tapping. I also used a small magnet that fit in the hole after I drilled just to be sure I got all the shavings. I do not know anything about the trans part though.

 

[Agnem]

Why is the pyro sender post turbo on the ATS kits?

Probably due to manufacturing or marketing reasons. Manufacturing reason = we want to put the hole here because it is easier. Marketing reason = pyro easy to service, shorter wire run, can't damage the turbo if it fails.

 

[MIDNIGHT RIDER]

can't damage the turbo if it fails.

That's scary to even think about, especially considering the number of disentegrated probe tips I have seen over the years.

BUT, for most accurate results, the manifold should be drilled/tapped, and the probe as close to the cylinders as practical.

Every different engine design has one cylinder that will be the hottest; in a perfect world, the probe would be placed closest to that cylinder.

Post-turbo mounted probes are so far from the action that they are no more than a good guess, at best, as to how hot things are getting.

Vast loss of actual cylinder temperature, and too many other variables, come into play in a post-turbo mounting to have a general rule-of-thumb as to just what post-turbo temperature is too hot.

 

[Zaggnutt]

I know this is ancient, but does anyone have pics on the install of one of these? I would like a pic of "the flat spot on the manifold" mentioned... Thanks!

 

[racer30]

Check this out....http://www.flickr.com/photos/racer30/10130488203/ This is a pic of a drivers side manifold on the other side of the engine in the Motor Home repower I just did.

 

[Zaggnutt]

Check this out....http://www.flickr.com/photos/racer30/10130488203/ This is a pic of a drivers side manifold on the other side of the engine in the Motor Home repower I just did.

Thanks Brad!