So last year when I made new fuel return lines I just laid the fuel temp plug and sensor on the intake (clamshell) and just zip tied it to the harness, it just picked up whatever temp it could while just laying there, worked fine no issues.
With this new combo I was very curious as to what the intake temps would be doing with the new a/w ic and cooling sys combo. Since the lb7 doesn't capture intake temps (post ic) I decided to install the fuel temp sensor into the bottom of the new street intake...…….. drilled, taped, installed and use it as the intake temp instead (and be able to log with efilive). Extended the pig tail, along with the fps pig tail and ran with it. Wasn't sure how hot it would get, wasn't sure how high the sensor would read, didn't know if the ecm would freak out if it got to hot...……. or what is too hot??
Normal driving, in town and some freeway speeds intake temps stay from 120 to as low as mid 90's with good airflow (highway speeds). In traffic those temps will rise as the intake takes in heat from the heads and rest of the engine, but with the fan on it should keep it in check, still needs to be confirmed but so far so good.
Now racing...……… today was the first trip with the new combo. We made 5 passes in 3 hours, the last 2 were 20 minutes apart. The intake temps ranged from 115-138 during the run from staging to the end of the pass, that's no fan during the run just circulating water thru the cooling system. After the pass I would run the fan on the shut down, return road and in my pit, which this is my normal procedure anyways. I run one fan that now services both radiators, it works well. The temps rose to as high as 154 during the shut down and started dropping on the return road down to the 120's before I would turn the fan off.
The system is working really well, temps are happy, engine is happy and I'm capturing the data. Seems like a win win