Water bypass for throttle body
Melting Slicks
Joined: Jan 2000
Posts: 3,418
Likes: 1
From: NW Chicago Suburbs
Originally Posted by DRE69L46
...most small airplanes use exhaust to heat the carburetor to prevent TB icing....So, those who have disconnected the lines from the TB, any adverse effects?
Race Director
Joined: Feb 2003
Posts: 11,672
Likes: 20
From: Lake Wylie SC
I flew jets and didn't have to worry about carb heat or mags. But at 10 degrees C or 50 degrees F or lower, when visable moisture is present, you can make ice in the intake portion of the engine the same way our TBs can. The only difference is the TB is also warmed by the operation of the engine. Our jets have to take hot air and route it into the intake of the engine to reduce ice build up. So, if you live in a climate that gets cold (below 32 degrees) and has high humidity (fog, mist, rain ,etc) without the coolant running through the TB, you could have a little icing problem in the TB. I don't really run my Vette in those kind of conditions so I bypassed my TB.
Melting Slicks
Joined: May 2002
Posts: 2,670
Likes: 4
From: Severna Park MD
Originally Posted by Strick
So, if you live in a climate that gets cold (below 32 degrees) and has high humidity (fog, mist, rain ,etc) without the coolant running through the TB, you could have a little icing problem in the TB. I don't really run my Vette in those kind of conditions so I bypassed my TB.
One year the icing line for every storm was almost exactly along I-95 between Washington and Baltimore. Ice at I-95, snow north or NW, rain to the south or east.
Always plenty of drizzle here in the winter.
Melting Slicks
Joined: Oct 2004
Posts: 2,510
Likes: 4
From: Austin Texas
Originally Posted by Strick
The only difference is the TB is also warmed by the operation of the engine
, but one thing C4's and all vette's have in common, is plenty of warmth under the hood!! 
