Pyro post turbo temp max

[rdodd]

My pyro sensor is located post turbo and i would like to know what temp at this location is considered too hot or in danger zone for pyro temps. Also what degree temp difference is there between pre-turbo and post-turbo? I am installing bigger injectors in my 92 DC and would like to know what temps to watch for.

 

[Matt S]

I believe the magic number is around 900* to 1000* depending on the source but it is also a function of boost. It is about 300* cooler than pre-turbo which has a max of 1300*.

 

[BushWakr - RIP]

I seem to remember a formula/rule of thumb that said +10*F for every 1 lb of boost if your post turbo. That is, in the radius of the elbow.

So, 20 lbs. of boost is roughly another 200*F above gauge reading. Also, try to let it cool down below 300*F when shutting down. I always let the temp drop to about 250* before turn-off.

Max post turbo temp should not exceed 950*F because to get there your no doubt running WOT with max boost, or very near it. I read here that 1250* is the start of softening point for critical component metals.

Personally I've never exceeded 800* at 18 lbs boost for more than a couple minutes before gearing down and cooling out a bit.

Just my personal preference though.



Regarsd, Bush'

 

[Bob Beauchaine]

Mine is pre-turbo and the highest I have seen while towing uphill is 1150 @ about 25 lbs of boost. With Bushwakr's formula that is about 900 degrees. With my new pump it's now running 100 to 150 degrees less although, I haven't towed uphill with my trailer and the new setup.

Happy Trails