I Have A 94 Mazda Touring/with 67,xxx. With The Following Mods:
99 Jspec Twins
Greddy/trust Intake
Greddy Sp Exhaust
Hks Downpipe
Rotorsportsracing Alum. Ast
Koyo Radiator
Silicone Hose Replacement
Caliberated/cleaned Injectors

Problem Is On The Way Home From The Shop The Temp. Rose To 220* To 240* On The Defi Temp Guage.
I Pulled Over Several Times During The 2 Hr Drive. I Figured The Temp. Was Too High.
Does Any Have Any Suggestions On How I Can Keep The Temp Lower While Normal <85mph Driving

Please Help..
Thanks

 

flush coolant and replace, check t-stat might not be opening, make custom ducting for radiator so air get's trapped to go through the radiator only or get a V-mount like I did and now no more problems...

 

Something is wrong with your car. It should not run hot like that at freeway speeds. Check your radiator to see if a bag is up in there or something. Thats what happened to me a month ago. I was overheating at freeway speeds. I ended up checking everything except for something blocking the radiator. It ended up being a black bag that I couldnt see

 

Start with replacing your thermostat. Buy a Mazda OEM unit. That may be your only problem.

 

I'd say fans or thermostat would be good places to check first.

Steve

 

Did they mess with your cooling system at the shop? I bet they didn't get all the air out. Could be the water pump too... they go bad a lot.