TB bypass
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TB bypass
to do the TB coolant bypass on the 5.8 do you just connect the top coolant line coming from the radiator into the bottom line coming out of the motor and cap off the 2 ports on the TB??
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it suppose to help the intake warm up on cold starts, but on warm days you actually lose a few HP, 3-5 at most, but hey its free HP. im putting a BBK twin 61mm TB on so figure ill do the bypass while at it 
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i dont think it would ever freeze unless your in a area that goes to well below freezing . ive done it to other vehicles and never had a issue but its never extremely cold were i live either
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From: Ottawa, Ontario
But I have seen TB icing in above freezing weather too, depends upon relative humidity in the air and the speed of the vehicle, fast moving air has a chilling effect. I had the joy of taking a trip through a snow squall in an old Chevy malibu way back, the whole carburator froze solid. It was pretty funny to see a hot motor with a block of ice on top of it, throttle stuck wide open.
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The pressure drop between atmospheric condition and engine manifold vacuum is what creates the temperature drop. Ambient temperature does affect things, but it doesn't have to be below freezing for the throttle to ice. When we test restrictor plate engines at work, the carb spacer and restrictor plate are always cold with condensation on them after running, even in the summer.
There really isn't enough surface area in the throttle body on our trucks for the coolant to transfer any appreciable amount of heat to the inlet air. I wouldn't waste time bypassing it unless it is leaking. I just can't imagine the gain in power (if any) being enough to measure.
There really isn't enough surface area in the throttle body on our trucks for the coolant to transfer any appreciable amount of heat to the inlet air. I wouldn't waste time bypassing it unless it is leaking. I just can't imagine the gain in power (if any) being enough to measure.
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The pressure drop between atmospheric condition and engine manifold vacuum is what creates the temperature drop. Ambient temperature does affect things, but it doesn't have to be below freezing for the throttle to ice. When we test restrictor plate engines at work, the carb spacer and restrictor plate are always cold with condensation on them after running, even in the summer.
There really isn't enough surface area in the throttle body on our trucks for the coolant to transfer any appreciable amount of heat to the inlet air. I wouldn't waste time bypassing it unless it is leaking. I just can't imagine the gain in power (if any) being enough to measure.
There really isn't enough surface area in the throttle body on our trucks for the coolant to transfer any appreciable amount of heat to the inlet air. I wouldn't waste time bypassing it unless it is leaking. I just can't imagine the gain in power (if any) being enough to measure.
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if you want a new throttlebody just pm me i have a whole upper intake with all the sensors and crap sitting in my garrage i pulled off my truck when i switched to a carb you can have the whole thing for shipping (probably around $40)