tst pyro and dipricol reading different

[cclark746]

i have my dipricol gauge and my tst tied into the same pyro on the exhaust driving the tst is usually 75 degrees hotter than the dipricol should i install two probes if not which one should i believe

 

[nickleinonen]

if in doubt, trust the higher number for temprature [worst case scenerio]

 

[CBrahs]

I would install another probe. Install one on post turbo side. I had on my Dmax 1 pre and 1 post so I coud see exactly what was going on and plan to do that on this truck.

 

[JCleary]

I have my TST pyro mounted right above the turbo picking up the rear three cyls, and the Isspro on top monitoring the front three. My EGT's are usually the same, but the TST is more responsive, so there is some difference, but steady cruise produces identical measurements.

 

[oneshotkyle]

if in doubt, trust the higher number for temprature [worst case scenerio]

always read the higher temp. if you get worried by a bigger charger.

 

[BBRam]

I have the TST and a SW, both mounted side by side. They will split a little at different temp range's at most 50*. I don't really worry about it, just take the high reading.