hey guys today i took my truck for a spin around driving it, it was around 10:30pm BTW... and when i got home i opend my hood and saw that the turbo log manifol was a little red hot i saw it cause it was dark and so is this normal or what. Well im asking cause im new to this and i dont know if i might mess sumthing up or if its not supose to get red hot??? BTW my log manifol is wrap in heat wrap,

6.0 370ci. forged
T76gts .96ar
60#injectors
3'' down pipe
4l60 with 3000 stall
on 11.6 lbs. of boost
and was not running my meth injection.

 

that is normal when you are beating on it. if you were just putting around and it was red then you might have a tuning issue.

i am sure you know this but dont shut down your engine too soon after boosting it. it needs a minute or two of cool down time after geting on it hard.

 

well i was driving it for like 40 minutes and it only went into around 10# boost like for 8-10 seconds cause i would let go of the peddle and it was like 1/4 to 1/2 of the gas in. And when i got home its when the turbo log manifold was like, light to medium red hot and the turbo turbine was also red hot along with the right manifold. On the driver side i have my original manifold and i could bearly see where it was getting redhot also. And i already checked the turbo and its fine, also the oil lines and they are also fine. So can it be the tune that is causing this to get red hot and i was not beating it too hard when i wa test driving it.

 

If it's to rich it will cause that

 

ohh ok i think its runing rich BTW and i was also reading in sum other threads and the other guys say if its too lean it will get red hot and so i will check with my tunner to check my tune for me. Its not fully tune yet because i had a problem where i didnt had a fuel pressure regulator on my truck and i didnt know since its a 2006 flex-fuel and they have the regulator on my truck originally, and i had swaped tanks a long time ago and i just found out a couple of days ago reading your thread ZZebes where you mentiond about your fuel tank system... wich i used to have the same one. So i already installed a aeromotive regulator and my truck worked better after i intalled the FPR, but i think its still running rich but not as much when i wasnt running a FPR at all but im still running the same tune *** when i had over 100psi at idle. and it was extremly rich...

 

Both condition rich and lean can cause a manifold to run hot and red. The rich side of things is the fuel is actually burning in the pipe. Now in the cylinder the temps are not bad but the burning fuel in the pipe will slowly eat away at the tubing.

The lean side of things your cylinder temps are going up and up and the air coming out is stupid hot. This condition is what puts nice holes into pistons.

If you get a air fuel gauge in the downpipe it will tell you what is going on. This gauge is always a good idea to help you keep an eye on your set up. Tune might be good one day and the next a regulator or something stupid happened and with out the gauge you would not know.

 

It is normal that the manifold and turbo glow red in the dark.
Even when a turbo installation is done by the GM "gas turbo center of expertice" (Saab R&D in Södertälje), the turbo is glowing during normal driving.
If you arn´t melthing thing in your engine bay, and your tune is on, don´t worry about it.


This is a quote from a different thread in this forum, wher I ask a question on radiant heat, and I get an answer from Trick....

 

TrickPerformanceProducts: what guage ar you talking about the wide band guage or witch on today i checked the manifolds one by one with the laser radiation guage to see how hot were each one and al of them were reading around 440-480F* degrees and on the turbo log manfold were a little colder than the driver manifold i wonder why? i think the turbo log manifold should get hotter..... wont it? so around wha deg. F* should they be at idle.

 

We use the FJO widebands and gauges. this is the only way to tell if your lean or rich, besides pulling spark plugs and looking at them, which is pain in the backside in my opinion.

 

BTW is this too hot for it to get - reading with the laser radiation for the temp. was reading around 440-480*F degrees just out side the turbo log manfold on the cylinder ports to the log manifold.