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-   -   Need some data - Your Water Temps and Oil Temps (https://www.rx7club.com/west-rx-7-forum-193/need-some-data-your-water-temps-oil-temps-662235/)

sirshan 06-14-07 11:28 AM

Need some data - Your Water Temps and Oil Temps
 
I just wanted to see what everyones oil and water temps are. Im wondering if I need a thermostat that opens earlier and a better oil cooler or something of that sort. Ever since I got my new turbo put in, it seems the temps have increased a lot.

Currently on a daily driving basis, my temps are:

Water - 190
Oil - 210

In traffic, oil temp obviously increases. Water seems to stay there for the most part, but it can go up.

Is there anything I can do to bring temps down? Water Wetter work? Change Thermostat?

rajahFD 06-14-07 11:31 AM

Thermostat.

Siraniko 06-14-07 11:56 AM

I bet its gonna be a hot weekend again. We should have a barbeque.

ilike2eatricers 06-14-07 06:58 PM

82*C water temp on my old FC all day. highest it got at thunderhill or buttonwillow was 95*C. stock thermostat lots of ducting

oil temps I have no idea and dont want to know. stock oil cooler lots of ducting

ericgrau 06-15-07 02:42 PM

82C (180F) is the standard thermostat setting. If your temp is 190, then a colder thermostat probably wouldn't help.

Water wetter might take off 5 degrees F. Maybe.

I wouldn't worry too much, bet here's what you can do:
  • Remove the stock plastic and put a sheet over the top of the radiator to allow more air flow. Likewise if you're missing your stock plastic tray under the engine bay, put one in. Replace the old detoriating foam seals around the radiator to make sure air goes through it, not around it.
  • Add some more antifreeze. Your temps will get slightly little higher, but your boilover & hot spot protection will increase by a greater amount. Plus the higher temp will let your radiator dissipate a little more heat.
  • Switch to Evan's NPG coolant. Boils at 375 F so you never get any hot spots and you never overheat (unless your coolant leaks, etc.). Again, it'll run a little hotter than 50:50 antifreeze:water but avoiding hot spots & overheats are the only reasons to run cooler anyway. Hot spots are steam pockets that are much, much hotter than the liquid coolant around them. Evan's NPG is expensive, though.
  • Get a new radiator. Probably not worth it, but if you plan on even greater power upgrades you might as well.

sirshan 06-16-07 10:52 AM

Well, I have a Koyo Radiator that is thick...and stock belt fan with a custom plate over the intercooler area that seals everything off.

Hmm...I was told I need to get my oil temps down as a start to even get the water lower.


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