Relocating IAT sensor help

Hey Guys,

I'm going to be adding Meth injection to my procharger setup.

Lund said i need to relocate my IAT sensor. I see they make "kits" for the 05-10, and 15+ GT's, but i can't find anything for our years.

Has anyone done this? Where did you put the meth nozzle in relation to the IAT sensor? Should the IAT sensor go into the manifold somewhere, or is in the pipe pre t-body best?

If i need to piece together the parts for the IAT relocation, anyone have links on the parts needed?

Many thanks,
Jesse.

I believe my car was used for Lund setting up meth injection correctly on these cars.

I have an AIS trunk mount 3 gallon tank, AEM controller, and two 10 gph nozzles mounted in front of the air intake temp sensor. I believe they pulled the air intake temp wires off of the MAF that's located on the intercooler and routed them into this IAT sensor.

I don't have a part number to the exact air intake temp sensor. I wanted to run a wastegated Procharger on 93 octane with meth as the safety blanket. Ive since switched to e85 and i'm still running this methanol setup.

Perfect thanks so much for the info!

How did it work for you ? Any before and after IAT's?

Kman11 said:

Perfect thanks so much for the info!

How did it work for you ? Any before and after IAT's?

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Since i switched to the smaller pulley with the wastegate at the same time I did not have any good comparisons.

Now that im running the Lund ngauge i can monitor IATs. With the d1sc at max impeller speed I dont see any rise in IAT's. That being said two 10 gallon nozzles is a lot of 100% methanol being injected.

The car runs great and i attribute that to great tuning with a lot of octane. My stock engine car has 20 time slips in the 141-143mph trap speed along with street abuse.

How much boost are you seeing now? Any idea what IAT's you are you seeing at the end of the track? Ambient temps at the time?

140+ is moving!! Very impressive.

I'm gated at 8psi right now. I was only trapping 122 this past weekend. The car was feeling really soft on the big end. The logs show alot of timing being pulled due to IAT's. I have an F1C head unit, so i'm fighting some high output temps.

Once i get the IAT's sorted with meth, i'd like to gate it at 10 or 11 and call it a day.

Kman11 said:

How much boost are you seeing now? Any idea what IAT's you are you seeing at the end of the track? Ambient temps at the time?

140+ is moving!! Very impressive.

I'm gated at 8psi right now. I was only trapping 122 this past weekend. The car was feeling really soft on the big end. The logs show alot of timing being pulled due to IAT's. I have an F1C head unit, so i'm fighting some high output temps.

Once i get the IAT's sorted with meth, i'd like to gate it at 10 or 11 and call it a day.

Click to expand...

I was running 11.6psi for most of the time and just upped it to 13.1psi at the end of last track season. I havent logged the iat's but the car commands 23-24 degrees of timing the whole pass and that says the iats are low.

F1c is a big blower to spin while being wastegated on a stock engine. There is no suprise that its laying over top end. Are you running the stage 2 intercooler or race intercooler?

slow306stang said:

I was running 11.6psi for most of the time and just upped it to 13.1psi at the end of last track season. I havent logged the iat's but the car commands 23-24 degrees of timing the whole pass and that says the iats are low.

F1c is a big blower to spin while being wastegated on a stock engine. There is no suprise that its laying over top end. Are you running the stage 2 intercooler or race intercooler?

Click to expand...

Thanks for the help as always.

I talked to lund about your setup, he said that won't work, that the IAT sensor needs to be around 2' away from the nozzle's. So he's recommending the IAT sensor go into the Manifold somewhere. Any thoughts? I haven't got a clue how i would put it in the manifold.

Did you have any issue's tuning it the way it is? It seems from some research your setup is fairly standard. I'm not sure why lund is saying differently?

I have the stage 2 inter. The pulley on it now is a 4.75 which is thought to be around 15-16#'s. So it's making heat at that level.

I know a larger pulley will fit, i could do that to lower the overall boost and heat, along with the meth injection and see how it goes.

I will probably put the F1C up for sale / trade if the meth doesn't help enough. I got the kit for a good price, only reason i ended up with this huge head unit. I'm regretting it now LOL, been more trouble than it's worth.

I was thinking more about it. Maybe i can put the meth jet in the pipe just after the intercooler, and iat sensor where you have it. That would give me the 1.5-2' space lund is looking for. Do you see any issue injecting into a pipe that immediately curves? I can't imagine it would matter.

This is what you need, it's a break away harness so you can use IAT from the sensor and not the MAF, this will allow you to get accurate IAT numbers as long as you place it somewhere downstream from your meth nozzle

http://www.lethalperformance.com/vm...and-brass-air-temp-sensor-for-pd-blowers.html

Terry Reeves (Beefcakeracing) did a write up on this a few years back. I followed those instructions and it works great. It's got part numbers, wiring diagrams, and drill sizes (I think). I have a Vortech V3 and drilled a hole in the TB spacer for the IAT sensor. I got a longer coupler, installed a 10 gph nozzle on it (drilled + adapter), and placed it between the elbow that goes to the TB and the elbow that goes into the MAF coupler. I have a 1gph nozzle on the intake tubing pre-blower. With a cruising IAT at 80-82, my IAT goes down to 50-55. I have a Devils Own kit btw but they're all basically the same.

**If you're planning on placing the IAT sensor on the TB spacer, make sure the sensor goes on top or where the throttlebody plate moves away from it.

jn2 said:

This is what you need, it's a break away harness so you can use IAT from the sensor and not the MAF, this will allow you to get accurate IAT numbers as long as you place it somewhere downstream from your meth nozzle

http://www.lethalperformance.com/vm...and-brass-air-temp-sensor-for-pd-blowers.html

Click to expand...

Any confirmation that works with our cars? That would make it alot easier.

I found this post by beef on another site - http://s197forum.com/forum/showthread.php?t=63715 , I ordered the parts he listed there.

lshin037 said:

Terry Reeves (Beefcakeracing) did a write up on this a few years back. I followed those instructions and it works great. It's got part numbers, wiring diagrams, and drill sizes (I think). I have a Vortech V3 and drilled a hole in the TB spacer for the IAT sensor. I got a longer coupler, installed a 10 gph nozzle on it (drilled + adapter), and placed it between the elbow that goes to the TB and the elbow that goes into the MAF coupler. I have a 1gph nozzle on the intake tubing pre-blower. With a cruising IAT at 80-82, my IAT goes down to 50-55. I have a Devils Own kit btw but they're all basically the same.

**If you're planning on placing the IAT sensor on the TB spacer, make sure the sensor goes on top or where the throttlebody plate moves away from it.

Click to expand...

I am reading that correct, you are spraying meth pre blower? That's interesting. What is the advantage? I thought you could not have meth hit the MAF?

Are you using straight meth, or a mix?

What PSI do you have the kit activate?

Kman11 said:

Any confirmation that works with our cars? That would make it alot easier.

I found this post by beef on another site - http://s197forum.com/forum/showthread.php?t=63715 , I ordered the parts he listed there.



I am reading that correct, you are spraying meth pre blower? That's interesting. What is the advantage? I thought you could not have meth hit the MAF?

Are you using straight meth, or a mix?

What PSI do you have the kit activate?

Click to expand...

10gph nozzle after MAF and a 1gph nozzle preblower. The preblower nozzle is so small that it evaporates before reaching the MAF. That's the theory anyway and it's been working great. I use the preblower one to cool the blower. I use 80%meth solution by weight. The controller starts at 3 psi and goes full blast at 6 psi.


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