Thanks to many of your ideas, and with research from many forum searches, I have ordered the Koyo radiator and Defi D water temperature gauge today.

I will also install a new thermostat, Mazda upper and lower radiator hose, and a shorter Mazda pulley belt since I will have the broken AC removed.

I also wanted to do the oil temp. gauge, but decided against it at this time.

Only time will tell how easy the installation will go, but I have a qualified person to do the job; Ed York of York Engineering in Mt. Airy Md.

Ed won the ITS SCCA Championship at Summit Point this season. (1992 BMW 325is)

I have also had work done and received advice from; Bret dePedro of Rotary Performance in Mansssas, Va. Bret also races SCCA in Spec. Miata.

I thank both Bret, and Ed for their work and assistance.

Well now to search and learn about exhaust modifications....

Steve

 

Sounds like a good start! I installed my koyo this summer but haven't really driven the car enough to see how well it is working.

Good luck with everything!

Steve