question on everyones water temps
um just would like to know what is everyone seeing on water temp high way and street driving..... i live in south florida and its crazy hot.
my set up is coolant reroute custom rad... extra big the bottom ducked not the sides or the top.. doing the top soon. the sides have too much stuff going on ( oil cooler lines, ic piping, ac crap otherwise fully loaded).. 70% water 30% coolant anti corro ebay fans 12 inch and on all the time 30 row oil cooler 160 thermo anyways i see like 185-195 on the street and highway 175-185 and this is just normal driving..... have not been able to go wide open throttle.... breaking in the new engine, new clutch and just got bigger injectors so i need to retune it. but will let you know what happens when i start to boost it. but just wanted to know if this coolant reroute really did anything. sorry for all the type got carried away thanks |
so its crazy hot and you are wondering if temps of 175-195 are something to be concerned about? You do realize that the stock thermostat is 195F, right?
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move to alaska. problem solved. better yet - move to canada.
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Mine hovers between 195 and 210, with occasional trips to 215.
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Originally Posted by paul
(Post 320833)
so its crazy hot and you are wondering if temps of 175-195 are something to be concerned about? You do realize that the stock thermostat is 195F, right?
Originally Posted by UrbanSoot
(Post 320836)
move to alaska. problem solved. better yet - move to canada.
And your temps are what? Sorry but I must have missed the useful info in your posts Ive still got the crap stock gauge and havent got the ms running yet so i dont know about mine right now. Try using filling the whole rad with nothing but Water Wetter . It helped keep my temps on the last miata down to about 185-90 |
break your motor in like a man, but its probably too late and your ring sealage will be sufficient, but not as good as mine will be.
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u are fine stop being a sissy and drive the car. God come on people we mod our cars to rape em and enjoy.
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Originally Posted by leatherface24
(Post 320930)
And your temps are what? Sorry but I must have missed the useful info in your posts
Ive still got the crap stock gauge and havent got the ms running yet so i dont know about mine right now. Try using filling the whole rad with nothing but Water Wetter . It helped keep my temps on the last miata down to about 185-90 The useful information can easily be gleaned from my post by anyone with a brain. "Your temps are in this range which is at or below the range at which the factory thought it necessary to have the thermostat open to let cooling start." I just like to use common sense in making people see how stupid their concerns are. Thank you, come again. |
195-205 here, stock cooling system.
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Originally Posted by magnamx-5
(Post 320951)
u are fine stop being a sissy and drive the car. God come on people we mod our cars to rape em and enjoy.
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Uh....
230-250 here. I don't believe it, but that's what it says. That's with the GM coolant sensor numbers, GM bias resistance, standalone MS2 on a 99'. Car runs fine and never overheats though. But it makes me wonder. Talked to AbeFM and he said his did the same, something about MS2. So I put in his numbers for the sensor and it reads lower now. Actually reads a little too low. Need to adjust the numbers sometime. Ha, I can adjust my coolant temps.... 160*F thermo is bad on your engine. Put a mazda thermostat of the correct temp in there. You want the cooling system to maintain the correct temperature all the time, not a super low one that increases engine. And post some pics of your setup, radiator, heat exchangers, shrouding, fans, re route, etc. Not 1 phone pic. |
Pat, I take it you don't have an IR thermometer? I'd be curious what temps you are -actually- running, I plan to do MS in the future.
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The engine runs ~200*F. But for some reason MS2 reports higher values. FWIW, the sensor is in the back of the head and I have not done a reroute. So it "is" possible it's that hot back there. Sensor is dead on accurate at lower temps. Say it's 90*F outside on my digital thermometer, then Megtune will show that temp within 1 degree before startup.
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Originally Posted by patsmx5
(Post 321028)
Uh....
160*F thermo is bad on your engine. Put a mazda thermostat of the correct temp in there. You want the cooling system to maintain the correct temperature all the time, not a super low one that increases engine WEAR. Fixed. |
Originally Posted by paul
(Post 321045)
Fixed.
And Paul, you're running a lower temp thermostat too I read. I'd switch to stock one if I were you. |
Originally Posted by patsmx5
(Post 321042)
The engine runs ~200*F. But for some reason MS2 reports higher values.
If so, that is weird. I thought the use of GM sensors was more linear, than say the Bosch sensors. I've been told several times that I had to run another program to get the right values to the computer IF I ran a Bosch sensor. IIRC, GMs are more linear...?
Originally Posted by patsmx5
(Post 321042)
FWIW, the sensor is in the back of the head and I have not done a reroute. So it "is" possible it's that hot back there. Sensor is dead on accurate at lower temps. Say it's 90*F outside on my digital thermometer, then Megtune will show that temp within 1 degree before startup.
Tangentially speaking, this makes me wonder; Miatas' suffer with the problem of too much heat in the back of the head, and they also suffer from poor fuel pressure to the back two cylinders if you are running much more than stock HP (I forget the limit area)... Is it possible there is a relationship? Extra fuel can help with cooling for sure... Thinking about it more, I don't think it is real likely; it seems like everyone has the cooling problem regardless of power while the fueling issue only comes on once you get up to X hp... Hopefully I am coming up with something interesting, if not ignore me and nod your head knowingly... |
Originally Posted by fahrvergnugen
(Post 321064)
I'm not trying to be an ass, just explicit; you've not yet confirmed with an IRT that it is inaccurate at higher temps?
If so, that is weird. I thought the use of GM sensors was more linear, than say the Bosch sensors. I've been told several times that I had to run another program to get the right values to the computer IF I ran a Bosch sensor. IIRC, GMs are more linear...? Tangentially speaking, this makes me wonder; Miatas' suffer with the problem of too much heat in the back of the head, and they also suffer from poor fuel pressure to the back two cylinders if you are running much more than stock HP (I forget the limit area)... Is it possible there is a relationship? Extra fuel can help with cooling for sure... Thinking about it more, I don't think it is real likely; it seems like everyone has the cooling problem regardless of power while the fueling issue only comes on once you get up to X hp... Hopefully I am coming up with something interesting, if not ignore me and nod your head knowingly... Tangentially speak? Care to explain? Speaking in a direction perpendicular to your thoughts? Or speaking in time derivatives? Don't ASSume shit about fueling. There's more crap, rumors, and BS about fueling than there is in politics. I won't even touch the subject. I'm nodding my head knowingly right now. |
Originally Posted by patsmx5
(Post 321073)
Tangentially speak? Care to explain? Speaking in a direction perpendicular to your thoughts? Or speaking in time derivatives?
Originally Posted by patsmx5
(Post 321073)
Don't ASSume shit about fueling. There's more crap, rumors, and BS about fueling than there is in politics. I won't even touch the subject.
I'm nodding my head knowingly right now. We understand each other, in a indirect sort of way... :hustler: |
My temps "Texas" are usually 207.
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nods head...
Temp depends on where and how I'm driving, my thermostat won't open untill 195ish, for more info on this Joe Perez made a movie on youtube you need to watch. *Agrees that 165 is too low, and that you shouldn't be a pussy breaking in a new motor. So quit being a pussy. |
Originally Posted by patsmx5
(Post 321057)
No, it increases engine!!!!11 Yeah, increases wear. I dunno why but my laptop sucks for typing. It will sometimes highlight a word while I'm typing and then when I hit the next key, it deletes the word and puts whatever key I just hit in its place. No idea why but it's aggravating.
And Paul, you're running a lower temp thermostat too I read. I'd switch to stock one if I were you. |
im not really being a pussy about breaking it in im already hitting 5 psi and i have about 100 miles on it or less. when the post was up i just started to car and drive around... i found out i had air in the system (jacked up the front of the car sky high and ran it and what do u know bubbles).... i guess when i did the custom rad the cap is about even with the head and result making air pockets... so i think i may still have air in the system, i have a friend that has the nice tool from snap on thats takes all the air out the system and replaces with water... but my temps are nice for me 180 in traffic and 182 on highway... will post pics of set up when can... im kinda crazy when it come too water temp it blew my last engine i kinda want it at the 185 range... i drift the car sometimes and autoX and dont get to much air travel at those speeds so im expecting it to climb more under more load. so im thinking it will be fine under boost...
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Cruising about town etc normal driving 96degC, Trackday 99/101degC thats when running 10psi on a GT2860RS with Koyo rad & 13 row oilcooler.
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i getting back this old thread because these first days of my engine i notice a strange behavior of my coolant temp.
I am running ms3(Rev) with coolant reroute. I have the sensor placed back of the head at the screw hole next to the thermostat. So all the days at first startup i had a very quick peak to 221F and after 205F stable. My fan was always on. At cruising i was never down from 205F . I put a new sensor at the front side and temp changes very much !!! Now i have 203F peak and 192F stable. Where do you believe that is the right place to have the sensor ? At back to the hottest side ? or just opposite of the thermostat in front ? Is very noticeable this big difference . So where do you thing is the most accurate place ? |
most accurate place, probably back of the cylinder head on a stock engine in the normal stock place.
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