Average Coolant Temps

s300 and SManager software questions & answers
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GSRRR
Posts: 9
Joined: Fri Jun 26, 2009 9:30 am

Average Coolant Temps

Post by GSRRR »

Hey guys, I was tuning my car and one thing I kept my eye on was the engine coolant temp. I'd like to know what your averages are and what is considered "safe".

I have a B18C1 rebuilt and sleeved for 85MM CP pistons. I'm running a Garret GT35R turbo and a halfsize dual-core radiator. Under normal driving (no boost) my coolant temps are around 200-206 degrees.

Is that normal or too high? Also what is your average?
fly_n
Posts: 258
Joined: Wed May 21, 2008 11:00 am
Location: Sydney Australia

Post by fly_n »

Sounds like your doing ok there,nothing to worry about.

Normal operating temps for a stock motor are like between 80 - 95degC, which i think is about 175-205degF from my very fickle memory,i'll let u do the math to confirm.

Just try stay away from all the low temp thermostats & fan switches etc if u want to try creep the temp down a bit,do it right.

The real test ,especially on a boosted motor is, have u reeled off a few consecutive hot laps in it at the local track yet?
GSRRR
Posts: 9
Joined: Fri Jun 26, 2009 9:30 am

Post by GSRRR »

Awesome, that's good to know. Thanks!
ben
Posts: 81
Joined: Thu Feb 12, 2004 8:14 pm
Location: Bloomington, IN

Post by ben »

175 to 180 deg F for a full-width radiator, normally aspirated.

190 to 195 deg F for a half-width radiator, boosted.
fly_n
Posts: 258
Joined: Wed May 21, 2008 11:00 am
Location: Sydney Australia

Post by fly_n »

ben,stock fan switch is set to about 200-205degF.
ReDemoN
Posts: 9
Joined: Wed Feb 18, 2004 7:02 pm
Location: GA

Post by ReDemoN »

Im running 200-220F in a half width boosted car.
Kinda scary at times
HondaTechn303
Posts: 26
Joined: Thu Apr 09, 2009 7:35 pm
Location: Longmont, Co
Contact:

Average Coolant Temps For B18C1

Post by HondaTechn303 »

Thermostat
Starts Opening: 169F-176F
Fully Open: 194F
Cooling Fan
Thermoswitch "ON" Temperature: 196F-203F
Thermoswitch "OFF" Temperature: Subtract 5F-15F from actual "ON"
temperature.


These are Stock Honda Specifications
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