I'm going to do the coolant bypass when I get my new TB and I just wanted to know what kind of temps you need to cause any problems with it afterwards. Since it's winter here now it can get down to single digits overnight sometimes and I didn't know if that would cause any problems. I have to start it up early in the morning most days to get to school. Will I be fine doing that and letting it warm up, or should I avoid driving it when the temps get that low?
Thanks

 

I've heard of people who have done this in areas where it gets to the negative temps (actual temperature and not wind chill... that's damn cold for a Florida boy! ). They said they had no problems.

I'd really like to know why the GM engineers thought this necessary because I haven't seen/heard of a case where it has been actually *needed*? There must be a reason but I have yet to read a good explanation.

 

Been in low double digits w/mine... no problems...

 

On start up your coolant is just as cold as you TB so theres no advantage there. The TB should still warm up after that just because of engine heat. I don't see why you need the extra heat provided by the coolant.

 

Never had any problems with it on my old lt1

 

Ran both the stock TB and a 58mm Holley TB with no coolant connected, and no problems, with air temperatures as low as 0 degF.

 

I've ran my car in pretty extreme temperatures as well with temps at 0 degrees or below and haven't had any issues with the modification.

 

Yo, Fred, do you have any idea (even a guess!) as to why GM did this in the first place? I'd be curious to know! hahha

 

Im sure they did it to meet some emission standard.

 

the colder the better!

 

Just raced at Willow Springs this past week and it was 6 degrees F driving to the track; no TB issues at all.

 

This is correct. The intake charge is heated and reduces emissions, which in turn lowers horsepower. I had heard the blades can freeze in extreme cold, but have never heard of one documented case of that happening.

 

Correct info...