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03-15-2010, 10:17 PM | #1 |
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BAIC
Location: Fresno Ca
Vehicle:RHD sedan sti swap high on meth |
normal operating temp ??
Ok
i have a darton sleeved 2.5l ej257 block. i notice that when i am stopped at a long light or slow traffic i see my temp gauge start to jump. so i plugged in my ap and did the live data to see the coolant temp. The highest its gone is 208 and the fans turn on and cool it down but at 207-208 the needle on the gauge is 3/4 the way up. i am trying to figure out if it my gauge cluster or what the deal is. When i drive on thre freeway or drive it hard the temp gauge never moves. any imput would help edit. also running a mishimoto radiator with anti freeze mixed with water and water wetter
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Last edited by blkwagon; 03-16-2010 at 01:25 AM. |
03-16-2010, 12:57 AM | #2 |
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RMIC
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thats pretty high..
not like OMGMYCARSGONNABLOW but its up there. normal is like 180-190 range. depending on whats done to the car etc etc. |
03-16-2010, 01:17 AM | #3 |
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well the fans dont kick on until 205-207 from what ive notice....im not losing any coolant...i tested a 07 sti with a ap and when it idles temps reach 207 the fans kick on and it cools down but the temp needle never moved
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03-16-2010, 01:42 AM | #4 |
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I installed a Crucial thermostat and it seems to make allow me to idle longer before the temp starts its climb and also cool back down a lot quicker once I start moving
208 stopped isn't abnormal, I'd be more worried if it was 208 while you are moving above 40 mph on a cool day |
03-16-2010, 04:24 AM | #5 |
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You can set the fans to turn on earlier...
What fans are you running? Stock fans? If you have aftermarket fans there is a low and high speed on the factory fans. |
03-16-2010, 05:18 AM | #6 |
Sammo Hung
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Join Date: Sep 2001
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South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
187~189 considered normal..
just get after market aluminum radiator. |
03-16-2010, 11:31 AM | #7 |
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I am using stock fans. And also already running an aftermarket radiator. This could be me over paranoid but I wanna get it right before summer hit.
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03-16-2010, 11:36 AM | #8 |
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Try a crucial 160d thermostat. Also with Romraider you can make the fans kick in earlier. I changed mine to kick the fans in 10f earlier than stock.
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03-16-2010, 11:43 AM | #9 |
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So can I use rom raider to adjust the fans with out screwing up my tune?
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03-16-2010, 11:50 AM | #10 |
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03-16-2010, 12:04 PM | #11 |
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Cool. I give it a shot. Thanks
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05-13-2010, 12:31 AM | #12 |
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Hey guys. I just replaced my radiator with an Mishimoto with stock fans. I also replaced my thermostat. My water pump has only 20,000 miles on it. I made sure there is no air in the system also. When I am cruising, I am hitting 210 degrees without giving it boost or anything. I am stumped on what it could be. I have tryed everything I can think of. I got in my UTEC just to make sure my gauge wasn't fooling me and sure enough, I am running 210F while cruising normal. Checked headgaskets and they are fine also. My car is a 2002 WRX making 300whp
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09-15-2020, 10:02 PM | #13 | |
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Quote:
I am having this exact issue also, I was having heat problems now I am on a closed deck block. I would hit 220° on the regular and if I hit a red light it would hit 230° and I would have to stop to let the car cool as it would barely run. I installed a mishimoto triple row radiator and I have not gotten over 215°. Wanting the car to run cooler I installed mishimoto fans, liquid chill coolant, upgraded thermostat that is 5-10° cooler, and killer bee elbow at the thermostat housing and my coolant temps cruise at 198-208 and if I get into it it quickly comes back down to that range. What do I need to get this under 190? |
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09-16-2020, 09:35 AM | #14 |
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Guys, if your car is over heating at a light or light/normal driving, installing a aftermarket rad will not do dick. The issue is not with the rad. List of issues:
1)air bubble in your lines 2)Bad thermostat 3)Bad sensor 4)Low or old coolant 5)Head gasket 6)Wrong rad cap or mixed up with the 2 |
09-16-2020, 10:44 AM | #15 |
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normally operating temp should be between 195 and 220...most vehicles dont turn on fans til 220, this is best temperature for complete combustion and emissions...the lower temp thermostats will jsut allow for more water flow at lower temperatures...the guage showing that high would likely be a bad temp sensor...in a few vehicles i have seen resistance issues and an in line resistor has corrected it...
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09-22-2020, 04:21 PM | #16 | |
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09-22-2020, 07:29 PM | #17 |
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Make sure you're using an OEM water pump or something that works. We've had the impeller wheel come off the pulley on a Gates one. We went to OEM waterpumps after that.
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09-25-2020, 12:02 PM | #18 |
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09-25-2020, 12:07 PM | #19 | |
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Vehicle:2005 WRX STi CGM |
Quote:
Closed deck block here. I don't think my tuner has the fans kicking on until 205. I'd say if you see anything over 220+ then it's cause for concern. |
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09-28-2020, 08:22 PM | #20 | |
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Quote:
Okay, update... I installed an aftermarket tbw performance skid plate and cut my bumper for air flow through the front end. I think the huge ets was adding more heat to the cores behind it and not getting enough air flow, my temps are now in normal range and the car cools back down to operating temp quickly. I just replaced thermostat, have new coolant, and no air in the system from what I can tell. |
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02-10-2022, 08:38 AM | #21 |
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02-10-2022, 10:18 AM | #22 |
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Vehicle:2000 2.5 Auto-X RSTi Sparkly |
Yes. The car can run richer than needed at lower temps (below 160). Run a normal thermostat.
The normal operating temp of most Subarus is between about 175-207. Anywhere in there and you're fine. Bad things don't really happen until you go over about 240 degrees of coolant temp |
02-17-2022, 06:42 AM | #23 |
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Yes
I agree with Subydude, that is too cold. I hear a lot of people wanting their engine to run cooler. Some think the lower the temp, the better. You obviously are not one of them since you asked the question. Modern (syn)oil and engines from what I gather are working optimally at around 200 degrees.
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03-28-2022, 12:08 AM | #24 | |
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