oil temps
Jun 7, 2008, 06:38 PM
#31
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A stat shouldn't stay open. It closes when the cooler liquid contacts it, keeping it in the block until it reaches temp. Then does it all over again... If the stat would stay open, you would overheat for sure as the water has to stay in the radiator for a while to cool down.
Doc
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Jun 7, 2008, 10:10 PM
#32
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Doc- What temps should we shooting for on the track? I hear that we want to hit 100c to get rid of moisture and such but don't want to go much hotter? Whats the ideal condition for a motor?
Oddly I rarely get over 100c and if I do its back down to 90c or so by the time I get into the paddock after a session. I don't mind the quick cool down but fear that I'm actually not getting hot enough at times. Is this reality?
Oddly I rarely get over 100c and if I do its back down to 90c or so by the time I get into the paddock after a session. I don't mind the quick cool down but fear that I'm actually not getting hot enough at times. Is this reality?
Jun 8, 2008, 06:30 AM
#33
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Seeing that my old brain is still on F. for temps.... If you are running a Premium Petroleum oil, 225-235 is it's Upper Lubricating Limits..
After that, I have to be cautiousas too many people call every Mobil 1, Castrol SynTec and the rest of the Hydro-Cracked Products "Synthetic"
So, this is going to be strictly for AMSOIL..... I wouldn't worry until 265.. and that is not so much for the oil temp.. your coolant temps are probably way above where they need to be... I have run over 270 on my MotorCycle. But it does shorten the life of the oil.
So... 225-235 Degrees F.
Doc
After that, I have to be cautiousas too many people call every Mobil 1, Castrol SynTec and the rest of the Hydro-Cracked Products "Synthetic"
So, this is going to be strictly for AMSOIL..... I wouldn't worry until 265.. and that is not so much for the oil temp.. your coolant temps are probably way above where they need to be... I have run over 270 on my MotorCycle. But it does shorten the life of the oil.
So... 225-235 Degrees F.
Doc
Jun 8, 2008, 06:44 AM
#34
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D.... sorry I cut the other reply off...BTW.... Nice looking website.. I'll have to check it out a little more and see what you guys are up to...
Yes, it is possible to be too cool, but, although I work in F.... 100C is 210 degrees which is considered operating temp.. where the oil is designed to run, 210, until it's upper lubricating limits, can be a fine line.. I normally run about 210-220 on my bike with AMSOIL Racing oil, so those occassional 270's don't bother me.
Doc
Yes, it is possible to be too cool, but, although I work in F.... 100C is 210 degrees which is considered operating temp.. where the oil is designed to run, 210, until it's upper lubricating limits, can be a fine line.. I normally run about 210-220 on my bike with AMSOIL Racing oil, so those occassional 270's don't bother me.
Doc
Jun 8, 2008, 07:06 AM
#35
Really? Do you have stock radiator, stock oil cooler, stock front bumper? What are you using as a gauge. Mine shoot to 240F on a Stewart Warner gauge whenever I run the car hard, even on a 60 degree day, but generally don't go past that. On a cool down lap they fall to 210ish in a couple minutes. Stock everything from a cooling standpoint.
Jun 8, 2008, 10:06 AM
#36
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On my car all of that is stock. My first track day I used redline and had some high temps but switched to Mobile 1 and the temps went down.
Sadly as has been pointed out Mobile 1 is now differently formulated and not of the same quality and I am just about out of old stock. Time for me to find something new.
Amsoil is highly thought of and I am of the idea that DTM uses it in their TT cars I may be switching in that direction myself.
Sadly as has been pointed out Mobile 1 is now differently formulated and not of the same quality and I am just about out of old stock. Time for me to find something new.
Amsoil is highly thought of and I am of the idea that DTM uses it in their TT cars I may be switching in that direction myself.
Jun 8, 2008, 10:59 AM
#37
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On my car all of that is stock. My first track day I used redline and had some high temps but switched to Mobile 1 and the temps went down.
Sadly as has been pointed out Mobile 1 is now differently formulated and not of the same quality and I am just about out of old stock. Time for me to find something new.
Amsoil is highly thought of and I am of the idea that DTM uses it in their TT cars I may be switching in that direction myself.
Sadly as has been pointed out Mobile 1 is now differently formulated and not of the same quality and I am just about out of old stock. Time for me to find something new.
Amsoil is highly thought of and I am of the idea that DTM uses it in their TT cars I may be switching in that direction myself.
Doc
Jun 8, 2008, 04:34 PM
#38
A stat shouldn't stay open. It closes when the cooler liquid contacts it, keeping it in the block until it reaches temp. Then does it all over again... If the stat would stay open, you would overheat for sure as the water has to stay in the radiator for a while to cool down.
Doc
.
Doc
.
I'm not talking a 50 second autox I'm talking 30 minute lapping sessions and driving at 100%.
Jun 15, 2008, 11:50 AM
#39
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my water is rock solid.
I have 2 oil coolers now.
we took timing out of the car, i know we are running safe. AFR's are safe too.
we customized the DP away from the oil pan.
we put a thick heat reflector sheild on oil pan.
100-105f outside, prolly hotter on pavement.
.... I am still over heating.
It has to make a difference where the oil temp sender is located. Where have you guys put yours? Mine is by oil filter, right before oil goes into oil cooler.
I have 2 oil coolers now.
we took timing out of the car, i know we are running safe. AFR's are safe too.
we customized the DP away from the oil pan.
we put a thick heat reflector sheild on oil pan.
100-105f outside, prolly hotter on pavement.
.... I am still over heating.
It has to make a difference where the oil temp sender is located. Where have you guys put yours? Mine is by oil filter, right before oil goes into oil cooler.
Jun 15, 2008, 04:24 PM
#45
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we are going to relocate the temp sender to get a 'medium' reading.. but these temps are worrying me.
I have seen 140c meny times before, this is not uncommon... atleast not for me.
Accusump system up next... oil pressure dips way down when during hard G' right hand sweepeers, thats gotta hurt.
n