TBI Throttle Body Injection discussion and questions. L03/CFI tech and other performance enhancements.

Does the MAT go inside engine compartment?

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Old Nov 20, 2002 | 03:12 PM
  #1  
nhromyak's Avatar
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From: Folsom, Ca
Car: '73 Chevy Blazer
Engine: BBC - 408
Transmission: SM465
Does the MAT go inside engine compartment?

Where should this thing be installed?

Sorry for the newbie question.
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Old Nov 20, 2002 | 09:24 PM
  #2  
JPrevost's Avatar
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Car: 91 Red Sled
Axle/Gears: 10bolt Richmond 3.73 Torsen
Well it's called an MAT or IAT so measuring the air that the motor sucks in is probably better than measuring the air temp of say your interior, or the exhaust!
Just stick it as close as possible to the TB. On my open element I just have it hanging throubh the tranny dip stick loop. It's about 8" away from the element but there isn't a difference in temp, I've checked.
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Old Nov 20, 2002 | 09:27 PM
  #3  
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From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
I drilled a hole and attached it to the stock location on the base of my open element. I figure it should at least be monitoring the inlet air temp (as it is supposed to).

Lon
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Old Nov 21, 2002 | 11:22 AM
  #4  
nhromyak's Avatar
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From: Folsom, Ca
Car: '73 Chevy Blazer
Engine: BBC - 408
Transmission: SM465
Thanks for the info.

I called Howell, they said it goes in the cab?!?!?!?

I too thought it should be at least in the engine compartment if not in the intake air stream.

I like the idea of drilling a hole in the air element and mounting it there.

That means I need to redo the wiring - oh well.

Thanks for the replies.
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Old Nov 21, 2002 | 04:41 PM
  #5  
vjo90RS8's Avatar
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From: San Jose, CA
Car: 2002 Z28
Engine: LS1
Transmission: 4L60E
Axle/Gears: 3.23
Originally posted by nhromyak
I called Howell, they said it goes in the cab
, y would anyone tell you to put a sensor inside your car, unless they wanted you to do it so that the sensor would read a cooler air condition, causing the computer to dump alittle more fuel into the engine, that is the only reason i could think of.
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Old Nov 21, 2002 | 04:50 PM
  #6  
nhromyak's Avatar
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From: Folsom, Ca
Car: '73 Chevy Blazer
Engine: BBC - 408
Transmission: SM465
I don't know....

Howell's wiring harness is only long enough to stay inside the compartment close to the computer. Hence, I will need to add more wire for this MAT sensor when I place it inside the air intake.

Again, thanks for the replies.
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Old Nov 27, 2002 | 02:19 PM
  #7  
Jza's Avatar
Jza
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From: Tulsa, OK
Is Howell's first name Bubba?
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Old Nov 28, 2002 | 10:46 PM
  #8  
rsc350's Avatar
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From: Saint Cloud, FL
Car: 92 Camaro RS
Engine: 350
Transmission: 700R4
Axle/Gears: 3.73 Truetrac
just throw a 4.7k ohm resistor at the end of the conector for the IAT sensor, makes the computer think the air is ideal for power, what ever that ideal temp is.
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