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Old Feb 10, 2003 | 01:36 PM
  #1  
1987gt's Avatar
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From: poughkeepsie,new york
Car: 1989 GTA
Engine: 350 TPI (Many Mods)
Transmission: 700R4
need help have a?

how do i do the throttle body coolant bypass? does it really help throttle response? is it worth doing? does anyone have any pics?
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Old Feb 10, 2003 | 02:57 PM
  #2  
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From: Norwalk, Iowa
don't do it if you live in cold climates. If you do it and you live in cold climates, what until it warms up. this mod allows coolant to flow through the throttle body so it keeps the valve from freezing. by doing the coolant bypass, it allows the air passing through the throttle body to be colder, thus creating more power with denser air. To do this just read this article

https://www.thirdgen.org/newdesign/t...ntbypass.shtml

Last edited by joshp14; Feb 10, 2003 at 02:59 PM.
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Old Feb 10, 2003 | 03:17 PM
  #3  
IROCZ88x's Avatar
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From: marlborough/dartmouth, MA
Car: 1988 IROC-Z
Engine: LB9
Transmission: 700R4
i read the article and have heard stuff about it b4 but i dont understand why a lack of coolant makes the air colder? maybe im retarded
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Old Feb 10, 2003 | 03:25 PM
  #4  
bigals87z28's Avatar
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From: Ocean, NJ
Car: Check The Sig
well the hot coolant is circulated around the throttle body to warm it up so the blades dont freeze in cold weather... but the car doesnt know when winter ends... so hot coolant is still circulated around the TB which makes the TB hotter... which makes the incoming air hotter... the TB mod is easy... bring it over to springfield and ill show ya! hehehe i dont know if i would do it for up here in Mass. but down home, i did it cause the only time it sees outside is nice weather... hope that helps ya with your question
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Old Feb 10, 2003 | 03:56 PM
  #5  
IROCZ88x's Avatar
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From: marlborough/dartmouth, MA
Car: 1988 IROC-Z
Engine: LB9
Transmission: 700R4
i know how to do it i just wasnt able to grasp the concept of coolant being used to heat something up when my previous knowledge has led me to believe coolant to be used to cool down...but thats why im asking
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Old Feb 10, 2003 | 04:12 PM
  #6  
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Jza
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From: Tulsa, OK
"coolant" is a relative term. It keeps the engine cool, at a nice comfy 195° or so. But 195° is still hot compared to the ambient air which where you are should be in the single digits if not somewhere close. It's a lot hotter than you'd want the air to be for maximum power, but the engine does run better (drivability-wise if not as powerful) in wintery weather with warm air going down it's throat. That's why you see heat stoves on the TBI and carb cars (the ones that haven't been modified, anyway).

Last edited by Jza; Feb 10, 2003 at 04:15 PM.
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