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IAT SENSOR (SD) LOCATION


MellowVR4
5" too short
372/2000


Galant VR-4 org Post #: 1227987 posted 05/11/16 11:22 AM     Remind Me!  Send Private Message   Edit Post      
Hey everyone, I will be switching to Speed density on my vr4. Wondering where most of you weld the bung for the IAT sensor? Im running meth injection and the nozzle is on the throttle body elbow, Which I know That is where most people weld their IAT bung to the elbow... My question is will the meth spraying into the throttle body and the IAT sensor being right next to it will it be getting false readings because they are next to each other??

Please any help/advice would be great!



89 RAIDER V6 5speed
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91 372/2000 making it pretty again
91 578/2000 sold
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Posts: 1636 | From: Milwaukee, Wi | Member Since: 07/25/09 | IP: (69.11.233.34) | Report this post to a Moderator

EfiniX
Member ++
543/1000


Galant VR-4 org Post #: 1227988 posted 05/11/16 12:39 PM     Remind Me!  Send Private Message   Edit Post      
Here

click

Basically weld a new bung down your intake pipe ~6-8", then move the meth nozzle to the new bung and put the IAT where the current bung is. Or plug/remove the current bung, and move it, then install the new one. Either way, you want the IAT as close to the TB as possible without interfering with its mechanical operation. You need space between the meth nozzle so you don't get fluid accumulation on the IAT. The meth sprayer should be spraying a fairly fine mist, so you want enough space so that the meth can mix with the air a bit. As for distance, it's debatable, but 6-8" seems to be where most people land based on the things I've read.

Full disclosure: I've been considering meth so I've done some reading. I'm sure there are people here with meth that can provide advice from personal experience. There's obviously a number of different ways to get this done. There are certainly people who put the nozzle closer to the IAT:



If you are doing DIY, Tom's Turbo Garage has a great installation video for the VR4. He's running a MAF, but still a good watch (along with all his other VR4 project videos).

click



RIP 543
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Edited by EfiniX (05/11/16 12:52 PM)

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turbowop
Hard Snarker
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Galant VR-4 org Post #: 1227992 posted 05/11/16 01:30 PM     Remind Me!  Send Private Message   Edit Post      
I run my meth nozzle at the TB elbow. My IAT sensor is several inches away in the upper intercooler pipe.



-Mark

A face only a grocery shopper could love.
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Posts: 11933 | From: Yakima, WA | Member Since: 04/29/01 | IP: (2600:100f:b025:9) | Report this post to a Moderator

MellowVR4
5" too short
372/2000


Galant VR-4 org Post #: 1227993 posted 05/11/16 01:34 PM     Remind Me!  Send Private Message   Edit Post   
Thanks for the info! That's what I was thinking of doing with mine, was going to have the meth nozzle at least 8 inches from the IAT sensor to prevent anything..



89 RAIDER V6 5speed
90 GALANT GSX SOLD
91 372/2000 making it pretty again
91 578/2000 sold
92 417/1000 DIED
87 4RUNNER LS400 SWAP SOLD:(

Posts: 1636 | From: Milwaukee, Wi | Member Since: 07/25/09 | IP: (69.11.233.34) | Report this post to a Moderator


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