69vette427/435

Can someone tell me why you would eliminate the coolant pipe on the throttle body?

Bfenty

I believe it is actually to warm up the throttle body when it's cold outside, not to keep it cool. People like to clean up their engine bay, so that's something they'll do since it's really not necessary if you're not driving in cold weather.

fredk

And if you do your own work such as taking the throttle body off for cleaning you don't have worry about coolant all over your motor.

69vette427/435

Are there 1 piece replacement hoses i can get if I bypass the throttle body?

Pete919

I used a 1995 upper radiator hose on my 94 because it’s one piece. I did the heater hoses at the same time. One or more may have been for a 95 for the same reason. I can’t recall.

aklim

Do you plant to drive your car when it is so cold, antifreeze is in danger of freezing? As mentioned, my reason is because I want easier access to the TB.

https://www.corvetteforum.com/forums...post1593621342

69vette427/435

It will be out in the cold.. Probably should not bypass the throttle body i guess. Thanks

aklim

How cold? I ran mine in 20 below without freezing the throttle body. You plan to go lower and where?

69vette427/435

At 20 below I'm not even going out. But not even close to that. Maybe 30 the lowest.

aklim

Then I would not worry about the TB freezing

06_LT1

People in warm places do the coolant bypass to keep the fuel/air charge as cool as possible.

My understanding: the coolant passing through the TB prevents condensate icing in cold climates that could otherwise prevent the throttle body from operating properly.

Moser28

I like not having coolant above the opti, way easier to remove the TB, and cleans up the engine compartment.

LiveWire1

GM does their cold-weather research in the town of Kapuskasing, in Northern Ontario,Canada, which is about an hour from Timmins, and about 100 miles from James Bay. It's DAMNED cold up there during the winter and they put the heating for the throttle body in for weather that one would see in mid-winter like that. Most of you in the southern states will never see cold like that, and anyone with a C4 and half a brain isn't going to drive their Corvette in winter conditions like that. Having said that, however, they do have to equip the cars for the worst weather possible. So, if you are confident that your car will never see minus 40 degrees (both F&C), feel free to bypass that feature.

aklim

I wouldn't even drive anything other than a snowmobile in that temp