That'* what I did. I had a 180* with two 1/8" holes, and a stock 195* for winter.

I could see this with a drilled T-Stat but with a normal 180* or even a 160* Stat it should warm up just as fast as the factory 195* Stat - the only thing is that its operating temp will be lower.

It warms up just a tad slower because there is always coolant flowing, and when the car first starts up, there is a lot of cold coolant flowing, keeping the engine from warming up quickly.

I wouldn't have a t-stat with holes that big. Maybe if it only had one hole that big. But I would drill 3 1/16" holes in it. I have a stock t-stat in my Lumina, and the heat still takes a while to start coming out, probably 8-10 minutes. In my STE I have one 1/8" hole in it, and it would be just starting to throw out hot heat as I would pull into the school parking lot. Its about 12 miles to school through town, so its not a short drive. (Its actually only 10 miles, but I go to my friends house and pick him up which is about 1 mile the opposite way from school, then I sit and wait in his driveway for him) So it probably takes that car like 20 minutes to warm up completely.

Shawn

I recall mine not looking like the one in the picture above. Even though it'* still a ZZP stat, the two holes are drilled right next to each other. If you don't wanna drill the holes yourself, spend the 10 bucks to get one from ZZP, and it works just as well as anything out there.