Tapping intake manifold

[cyclerick]

To measure IATs, can I tap into the rear of the composite GT intake manifold with a 1/8" npt? Is this the best place to measure temp? Do I need to worry about the tap blowing out from the pressure?

 

[Falkinman]

Isn't there already a factory sensor that measures IAT?

 

[fdjizm]

That is part of the MAF, you can probably tap it.

 

[cyclerick]

Unfortunately the MAF is downstream from my throttle body in the SC tube whereas the temps in the intake manifold will be higher as it sits on top of the engine. If I wasn't SC'd I wouldn't be worried about it.

 

[irishpwr46]

i doubt your going to be pushing enough boost to blow a threaded sending unit out the back of the intake. make sure wherever you pick, it wont be disturbed by anything leaning/ rubbing against it. and not anywhere that engine torque would cause it to hit the firewall or anything else. and i think the back if the intake would be a suitable spot

 

[Taxman]

I tapped a runner in my intake with no problems so far. Running 10-11 lbs of boost with no issues.

 

[Taxman]

Tapped the runner underneath so the wires run under the manifold. Everything is out of the way.

 

[cyclerick]

Thanks, good advice. I'll be running 11.5 Boost for now. I'm also going to install the manifold heat shield while I'm at it.

 

[cyclerick]

Tapped the runner underneath so the wires run under the manifold. Everything is out of the way.

Did you mean underneath engine cover?

 

[Taxman]

Did you mean underneath engine cover?

I mean removing the intake and tapping the underside of it in one of the runners. That's what I did on my 3v and it has worked perfectly.

 

[bullitt boy]

^ what he said.

 

[onebadgsx]

My boss manifold is tapped underneath with a 2nd iat sensor. 20 psi no probs