After Turbo Probe

[Killaclown]

Howdy all!!! I'm new to the site and finally figured out how to post, I think.

My question is: what are the temperature differences between installing a probe pre and post turbo? does it really matter or can you have a probe installed on your down pipe right after the turbo???

thanks

[Albie30]

Yes it does make a difference. To get the best readings you want your probe pre-turbo in the manifold. Your temps will read a couple hundred degrees cooler post turbo. I dont know exactly how much of a difference in temp is though

[rednek01]

I think it reads about 300-500 degrees cooler if you put it in the downpipe

[stump0331]

the nornm is to go pre turbo


welcome to the site!!!!

[ABOBB]

Welcome to Powerstroke.org

There is a significant difference in the temperatures between the two locations. I believe those who have had probes in both, have stated at least 300*.

A probe located before the turbo is most accurate, however, if you must for whatever reason locate the probe post-turbo, remember that you will need to adjust the maximum levels you are willing to see on your gauge downward to compensate.

[mschn99]

a post turbo probe will always read at least 150-200 degrees cooler.....BUT it will also respond slower and more inaccurately...so while crusing it may be200 degrees cooler...at WOT when it respnonds way slower it could be as much as 4-500 degrees off.....its a tough number to say cause it will be different depending on how its being driven...

[slammedSI]

There is a huge difference. I acully have both post and pre. My post turbo can be at 300 and my pre be at 1200.. my post turbo never gets above 550

[Killaclown]

Thanks for the advice guys I bought this truck back in sept. and the egt was installed on a bung on the down pipe right after the turbo. should I buy a new probe or just reuse the current one. I had a very strong feeling that was in the wrong place and needed to installed on the exhaust manifold.

[ABOBB]

You can reuse the probe.. but you may need a new bung, or will need to tap the manifold. You will also need to plug the existing hole.. but that should be as simple as screwing in a pipe plug.

[Powermoon]

Not sure if you can use the old probe but just wanted to say welcome. I grew up in Yakima.

Moon