I have the TBB installed on my car and it takes forever to warm up now that it's winter. I live in Sac,CA and it gets into the 30s at night. It usually takes 15 minutes of driving to warm up. This never bothered me before but I just had a kid so I'm wondering if I should reinstall the coolant lines. Will this help the car warm up faster or do all LT1s take awhole to warm up?

 

The bypass has nothing to do with how fast your engine warms up.

 

The TBB will not affect your warm up time. If you have a 160 stat or fans programmed to come on early that could affect the warm up time. Lately it's been taking my truck a lot longer to warm up in the mornings also. Last week was really bad.
My Camaro has been in my shop getting the tranny pulled and a header install the last couple of weeks so I can't use that to compare to.

 

GM incorporated the coolant lines into the throttle body in order to prevent the throttle body from icing shut in extreme cold conditions.