Hey, just wondering for those of you with an aftermarket water temperature gauge. What are differences in temperature between the stock and aftermarket radiators if measured? While in motion or idle.

 

i wish i knew...i hate it when my car runs hot...im still waiting for my m2 radiator =P ill let you know when i get it.

 

after puttign in a fluidyne i noticed no diffrence in temps, just seems that the fluidyne can keep teh same temperature for a longer period of time i ahve my fans wired on and its about 190-195 F when driving aroudn and little boost

 

Instead of buying a bigger radiator, anyone ever think of getting two permacool or SPAL fans that flow ALOT and just leaving them on all the time?

Or is the stock radiator 'that' bad?

 

The stock Fans are not the problem. In fact, they're being used in CA18DET's and SR20DET 180SX's here to go from belt driven fans to electric fans. It's the RADIATOR that is the problem. Have you seen how THIN it is?

 

Before Koyo Radiator install, average temp is 87-90 deg. Fan on.

After Koyo Radiator install, average temp is 81-82 deg. Fan on, on hot hot summer day temp doesn't go above 86 deg C.

Does that answer your questions.

Timmy

 

Not only thin, but plastic end tanks too! What was Mazda thinking when they put that in?? I have an autometer gauge and was told this brand has a tendency to read high. My mechanic did a check with this instrument at the filler neck and compared temps with the gauge and true coolant temperature at the filler neck. Turns out there is about a 20 degree difference. So If my gauge reads 210, the actual temperature is about 190. Bummer, If only I knew this before I got it, I would have bought a different one. I am curious if anyone else has similar problems with this brand gauge.

 

What made you go with the Koyo? Do you know if it mates well with the M2 medium SMIC. Ease of install? I like your coolant numbers with the Koyo.