chicksdigmiatas -I second leaving the wb02 where it is. Ask me how i know.... Autozone sells a plug to plug up the nb location.
I have a couple O2 plugs - but since we're on this topic A) How do you know?
B) Why not leave the narrow band sensor in and use it to calibrate the delay of the WB? I often noticed when on the stock ECU, having both a NB and WB gauge setup at the time that the WB was clearly slower reacting than the NB. Although the NB couldn't give you accurate numbers, it was always right on with the motor, unlike the WB.
So perhaps the NB signal in the datalog could be used to help pin point brief lean spots? I am very new to this tuning so perhaps this has already been discussed or passed over, but mine is still installed and hooked up to the gauge - might as well put it to use...?
D.dutton9512 - You want the IAT close the the throttle body for obvious reasons but I wouldn't move it without moving the WI nozzle as well. I also wouldn't want to switch to a closed unit.
Even if the IAT is only getting a little bit of spray occasionally it could still lead to rust and premature failure.
So.... use the open element at all costs..... moving the WI nozzles won't help much in my case, as the sensor ***WILL*** see/feel/mate with - liquid. And I fill my WI tank with 1 gal 70/30 water/meth and 1 gal 50/50... So while it's not 50/50, it still contains a fair amount of methanol.
Any estimates on how long the sensor could handle direct contact with liquid?
I personally suspect that if the IAT sensor is placed close enough to the TB, it will get wet, but by the time the car is parked in -most- cases, the flow of air outside of boost will have the sensor dry.
Especially since I'm logging 300*+ of air temps lol! Yea.... 300+ thats not even 10 psi either :( Thats actually like 8.7 but that sensor is reading pre-water injector temps and the WI starts tapering in at 6.5 psi and is at full spray by 11 psi
The fact of it is, I would also like to 3rd nozzle pre-turbo. So moving all my nozzles around for this IAT sensor isn't working out for my plans.
I'm still wanting to put it in my manifold for these reasons - but I'm wondering what I need to do prevent heat soak?
I have an idea in mind, but it's tacky and short sighted - a correctly sized tube approximately 1/2in. long welded to the manifold in the place of choice and then a rubber hose/tube (heater hose or something very similar) slide over the tube and the thread of the sensor and attached neatly with clamps.
This should reduce the amount of heat transfer from the manifold to the body of the sensor without pulling the sensor too far out of the air stream.
Maybe not? Will the rubber not perform as I intend? Too much heat for this to work? Perhaps removing the sensor too far from the air stream?
I see this upside here of this also pulling the sensor out of harms way of the spray and more so - behind the throttle body - the sensor will be free of any moisture almost immediately after the throttle is closed.