What is this on the bottom of my Throttle Body? PIC
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Joined: Dec 2004
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From: Garage
Car: 85 Camaro Z28
Engine: 350
Transmission: 700-R4
What is this on the bottom of my Throttle Body? PIC
I have this Lingenfelter Performance Engineering 58mm TB that I bought. On the back there is this thing that says
MPFI Rochester Products, Product Number is 17075921 and has a sensor in it, what exacty is it, what does it do...is it aftermarket? What do they cost? Call me an idiot but this isn't what is on my current TB.
MPFI Rochester Products, Product Number is 17075921 and has a sensor in it, what exacty is it, what does it do...is it aftermarket? What do they cost? Call me an idiot but this isn't what is on my current TB.
Joined: Mar 2005
Posts: 615
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From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
It is where your coolant runs through the throttle body to heat up the TB, for those who live up north. And I also think your IAC(Idle Air Control) plugs in there. I bypassed my coolant from the TB, but kept my IAC plugged in.
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Joined: May 2004
Posts: 84
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From: Sesser, IL
Car: A Black One
Engine: 383 Chevy
Transmission: Retro T56... :>)
Stock part. I just got one from a Chevy dealer just like it. Put it on tonight. I've seem them on www.tpiparts.com for $35.00. Not including the IAC motor.
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From: Dallas, TX area
Car: 91 Formula WS6 (Black, T-Tops)
Engine: 383 MiniRam (529 HP, 519 TQ - DD2K)
Transmission: Built '97 T56, Pro 5.0, CF-DF
Axle/Gears: 4.11 posi Ford 9"
How does your old throttle body not have one? If it's a TPI, it has to have one for everything to connect up and work (TB bypass excluded)
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Joined: Nov 2008
Posts: 143
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From: Wisconsin near the 54757
Car: 1986 Camaro Z28
Engine: 385" SBC
Transmission: built out 700r4
Axle/Gears: 4th gen, 373, LSD, GIRDLE
Re: What is this on the bottom of my Throttle Body? PIC
y did you bypass it? my guess is that a cooler tb is a better tb, did yoiu pick up any noticable gains or see any changes in driveability?
Joined: Mar 2005
Posts: 615
Likes: 27
From: Austin TX
Car: 89 Formula
Engine: 383 SBC/HSR
Transmission: 700R4
Axle/Gears: 3.73
Re: What is this on the bottom of my Throttle Body? PIC
I just keep my fans on longer to cool my engine, so the coolant lines for the oil and TB weren't necessary.
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Joined: Jul 2010
Posts: 85
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From: Minnesota
Re: What is this on the bottom of my Throttle Body? PIC
An old thread, but am looking for this same part. Typed in tpiparts.com, and it took me to turbo parts.........will try calling the phone number later. Any other known source for a replacement housing?
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Joined: Apr 2011
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From: Massachusetts
Car: 1987 Chevrolet Camaro Iroc-z
Engine: 305 CID Tuned Port Injection
Transmission: Auto
Axle/Gears: 3.23:1
Re: What is this on the bottom of my Throttle Body? PIC
the previous owner of my 87 Iroc bypassed the coolant from the throttle body. Are there any negative effects on the way the engine runs. Will there be problems in cold weather?
I really dont understand why he did it, and I'm thinking about just reconnecting it, but I dont know if its worth it.
I really dont understand why he did it, and I'm thinking about just reconnecting it, but I dont know if its worth it.
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