Geared

Just wondering...on a boosted ls7 with meth....

what if I dont relocate my IAT sensor...i.e. I just leave it in the MAF, pre-meth?

schpenxel

Then the IAT reading won't match reality, and any calculations that use that temp will be wrong

And you'll have no simple way of knowing whether the meth is actually spraying/pulling timing if not

Is it truly a huge deal, depending on the level of meth dependence?...not a clue. My guess would be not as much as most think.

It's quite simple to relocate though so I don't see much reason not to do it

Unreal

If anything it would just mean you are losing power as it will read hot, and pull timing when not needed. Basically you will get a little safety with the meth, but very little to any performance increase.

That is assuming you leave IAT tables aggressive at pulling timing out. Other option is to nerf the tables up so it doesn't pull timing, assume meth is on, and just lose any safety factor. If meth doesn't spray, car is assuming it is, and boom.

Z06Brucey

Is there a write upon how to relocate the IAT and harness? I'm sure that requires a retune correct?

lt1z

It basically just means that you will have to run the IAT timing as if it had no meth, and in the event of a pump failure you will not be able to program timing pull safety into the tune via IAT.

C U IN REARVEIW

I'm about to install a supercharger (well my mechanic is) where does the sensor get moved to?

Unreal

Get new sensor, either use casper harness or extend 2 wires, done.

Require a retune? Uhh, doesn't require, but dialing in the IATs tables for meth can help safety and power. Even without retuning you will see good gains. Heck, shouldn't even be a retune or a charge, it is tweaking one table that takes 2 minutes.
Casper harness if you want plug and play so you don't have to cut any wires.
http://www.casperselectronics.com/st...oducts_id=1137

C U IN REARVEIW

Is this kit universal? I have an ls2. ...where do you move the sensor from/ to?

Unreal

Look for one for your maf. That one I posted was for ls3/7 style sensor. Stock sensor is in the maf, and remain there. You add a second sensor and then wire that in so ECU reads off that one. As you can see, goes maf, meth, then IAT. Stock IAT is still in the maf, just not used.

C U IN REARVEIW

The mechanic that is doing the install is good but has never done a blower install....is this going to be difficult to explain to him what i want done? Does the harness split for the maf and new iat sensor? Im guessing i can get a sensor through casper electronics as well?

schpenxel

The factory one is built into the MAF.

To relocate it you have to install a new sensor somewhere after the meth nozzle, and then you will have to connect two wires to it. ECS has one that uses a rubber grommet. There is also a style that is threaded 3/8" NPT that you can install. I'm doing the 3/8" NPT. There's a spot on the passenger side of the intake manifold, right after the throttle body, where you can drill/tap a 3/8" NPT hole and install the sensor there

There are a few different ways to do it though

ECS sells a kit that includes the sensor and rubber grommet and I think the wiring adapter as well

Wiring wise you just have to get two wires that were originally connected to the MAF over to the new sensor.. you can do that by using a harness that splices into the original harness, or you can install the IAT connector right on the factory wires (assuming there's enough wire).

Just depends on how you want to do it

Cliff notes: install separate sensor, get two wires to it.

schpenxel

There are two wires on the MAF connector that are actually for the IAT

They need to connect to the new IAT sensor

That's it.. any mechanic should be able to take care of it no problem.

I may have some pictures, I'll see if I can find any

Streetk14

You want one of these: http://www.casperselectronics.com/st...oducts_id=1108

At least I think that's the one for LS2 cars.

C U IN REARVEIW

Ok, thanks to all for the education.

C U IN REARVEIW

if only using meth for safety do you still need to relocate iat sensor?

schpenxel

100% have to?.. no.

but you loose one of the advantages of meth in general IMO. It is a very easy thing to implement, so I think you are over-thinking it.

Unreal

If your tuner/mechanic doesn't know how to setup a meth setup, find a new one, you will just have more issues later if they can't figure something this basic out.

C U IN REARVEIW

parts ordered

schpenxel

Here's a picture I found earlier that shows where I'm going to put mine

C U IN REARVEIW

nice, I ordered the metal fitting as well...just need to decide where to install it.