irun4cops

Before I pull the trigger on a meth kit for the c7z, i wanted to know where i can relocate the IAT sensor to make it all worth while. If i got the nitrous express ported top plate for the lt4 blower, that has the 8 injectors spraying into it... and used it to run watermeth, my concern is where would I put the IAT sensor to be able to read the benefits of the meth... but where it won't also experience engine heat soak and give a false reading.

Or, is the sensor already right where it needs to be on the lt4 since it probably already measures the heat downstream of the blower compressing the air?

I don't currently know where the sensor is located

C7&7

If you do the direct port there really isn't a good spot to see each cylinder or anything.

If you put it in the intake charge then IAT2 would be your best bet. Or you could move IAT1 out of the maf and past the meth nozzle. (I think the Z has IAT1 in the maf still)

Moving IAT1 out of the MAF and in the charge pipe are what most do when doing a centrifugal blower.

irun4cops

Right, but i have no plan to run a centri blower.

eventually, turbo perhaps. But for now, i just want to meth the stock blower and have the car tuned.

the reason I'm saying that, is because the lt4 blower is right on the engine... so if the top plate of the blower is ported for meth... there does not seem to be a great place to put an IAT sensor.

black_c7

Do you know if the lt1 has a iat2 ? If yes where is it located?

C7&7

Yea it has IAT1 in the maf and IAT2 in the intake manifold. In the map sensor on the drivers side I am pretty sure. It's after the throttle body.

irun4cops

I've had others tell me that there is no sensor after the blower screws (which surprised me).

I would HOPE they are wrong and you are right. Unless of course you're saying it is upstream of the screws.

T/A KID

driverside rear of intake blower after rotors it's a TMAP... meaning MAP and iat built into it

irun4cops

downstream or upstream of screws compressing the air?

black_c7

I got a ls9 map sensor, does this one also have the iat sensor? And would i be able to read the it from the map instead of the maf?

C7&7

I don't think the LS9 MAP by itself has a IAT sensor.

FYREANT

If not then where are we reading our IAT2 from? I have an LS9 map and get IAT2 readings in the dashlogic. The IAT breakout in the charge pipe is IAT1 I thought..

black_c7

Yeh that what im thinking, if there was a 2nd iat why would i need to remove the iat1 from the maf?

If there is a iat2 in the map i can let the iat1 in the maf and take readings from iat2

irun4cops

so simply put, is this downstream or upstream from the screws compressing the air?

FYREANT

You want to read iat1 for meth, not iat2. That way if iat1 reads too hot it can pull timing to save the motor if the tuner set it up that way.

black_c7

Why not just let iat2 reads if its too hot and keep the iat1 to read normal iat so you can know if the meth working good or not.

If you put iat1 on charge pipe iat2 will read the same thing they both gonna read the iat cold from the meth

FYREANT

Because you have the meth spray onto iat1 directly or close to so its cold and you have early warning system before it gets tooo hot. You dont want to find out late with iat2 that the meth pump took a dive lol

irun4cops

i understand the point you are "trying" to make, but i think i disagree.

Either way, you missed the point of the whole post. If i inject the meth atop the blower housing... iat1 is not part of the equation.

and iat2 (or any other temp sensor) can give me real time data of the temps and pull timing accordingly. Its electronic. Its kind of quick... that near speed of light stuff.

irun4cops

the question is...

is there an iat sensor downstream from the injection atop the blower housing.

Ive gotten mixed answers. Ive had my thread hijacked with c6 zr1 nonsense..

i need someone who knows the answer... to answer, and everyone else to be silent until we get that answer. Thank you.