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Next project 160F thermo mod

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Old 02-15-2010, 07:54 PM
  #16  
Shark Attack
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Originally Posted by Jake Raby
You'll find that though the low temp unit starts to open at 160F, it is fully open at around 176F. In my vehicles this has kept the coolant temps very close to 180F.
Originally Posted by 1999Porsche911
Without other mods to the stock cooling system, no 996 or 997 will come close to maintaining 180F engine temperatures with any kind of load on the engine during normal driving or at idle, even in freezing climates. You might want to recalibrate your thermometer and check again.
We will see. I dont know. I will report back for sure. Right now I run about 3/16" above 180 on the dash gauge.

Originally Posted by Pac996
I'll simplify and say for more bang for your buck and fuel if the engine is running at 180 F you get a better bang/combustion. Engine power is derived from combustion. Combustion as you know in a too cold or too hot engine sucks. 180 as the ideal/optimum fuel combustion temperature?
I was simply saying I had no idea. Not being a smart *** to your reply
Old 02-15-2010, 08:27 PM
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1999Porsche911
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Originally Posted by Pac996
I'll simplify and say for more bang for your buck and fuel if the engine is running at 180 F you get a better bang/combustion. Engine power is derived from combustion. Combustion as you know in a too cold or too hot engine sucks. 180 as the ideal/optimum fuel combustion temperature?
Actually, the ideal/optimum fuel combustion temperature is considerably higher than 180F and mixture temperature is effected by compression more than by marginally different coolant temperature.
Old 02-15-2010, 08:31 PM
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1999Porsche911
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Originally Posted by Shark Attack
We will see. I dont know. I will report back for sure. Right now I run about 3/16" above 180 on the dash gauge.
Don't go by the gauge. With gauge needle in the middle of the "0" in 180, your coolant temperature is well above 200F.
Old 02-15-2010, 08:38 PM
  #19  
Shark Attack
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so are you saying that my bench mark on my needle regardless if the reading of temp is accurate, is not going to drop a little if my coolent temp runs lower? it has no bearing on the tempature? How odd? Its all show and no go? So if my car runs hotter than normal this gauage will not "go up".

So I know "normal" for my car is "a little above 180", If it pegs to the right. Just ignore it?
Old 02-15-2010, 08:53 PM
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Gretch
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Now, THAT was "smart ***"......

Well deserved though!
Old 02-15-2010, 09:38 PM
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ivangene
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There is a diagnostic digital temp built into the early version hvac controls - see the thread marked things you didn't know abou the 996 at the top of the forum for access and descriptions
Old 02-15-2010, 09:41 PM
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1999Porsche911
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Originally Posted by Shark Attack
so are you saying that my bench mark on my needle regardless if the reading of temp is accurate, is not going to drop a little if my coolent temp runs lower? it has no bearing on the tempature? How odd? Its all show and no go? So if my car runs hotter than normal this gauage will not "go up".

So I know "normal" for my car is "a little above 180", If it pegs to the right. Just ignore it?
No, but I was making the point that you do not have a clue as to what your coolant temperature is at any given time. So, how to you expect to have any meaningful comparison? Furthermore, the targeted coolant temperature for the computer is 194F - 203F and many engine codes depend on it acheiving that temperature.
Old 02-15-2010, 09:55 PM
  #23  
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Yes I was being an ***. 1999p911 seems to be taking it like a champ. We're going to get along just fine.

I knew what you meant I was being an ***. But every dick comment does have some truth.... The gauge will tell me if the car is running cooler than normal. Pease.. Ill report back after the mod
Old 02-15-2010, 11:25 PM
  #24  
Tbred911
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do 1999p911 fan mod...it works GREAT on the street and its ok for the track as well.... but I think your best mod for the track is the 3rd radiator *and* the fan mods...

the other thing that seems to work well is removing the belly pans to allow increased cooling from the underside...
Old 02-16-2010, 01:43 AM
  #25  
Pac996
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What exactly is the 160 thermostat sold as to help? I'd think it might be good for negative degree areas where engines have a tough time getting up to temp. I've heard some guys in super cold areas of Alaska don't bother with blocking off the radiator and just run their engines drained of coolant. I have a hard time believing that one.
Old 02-16-2010, 04:12 AM
  #26  
Jake Raby
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Originally Posted by 1999Porsche911
Without other mods to the stock cooling system, no 996 or 997 will come close to maintaining 180F engine temperatures with any kind of load on the engine during normal driving or at idle, even in freezing climates. You might want to recalibrate your thermometer and check again.
I beg to differ..
I've been gathering the data since July with a Race-Technology DL-2 in two different M96 powered vehicles off an on.

I have used the stock sensor and a calibrated GM sensor in two different locations in my 996 in applications from street to a DE at Road Atlanta and Land Speed Time Trials at Maxton NC where my Wife came within .5 MPH from a class record.
Hell I even have data gathered with one of the radiators taped up! (good for 3MPH!)
Old 02-16-2010, 08:02 AM
  #27  
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Originally Posted by Jake Raby
I beg to differ..
I've been gathering the data since July with a Race-Technology DL-2 in two different M96 powered vehicles off an on.

I have used the stock sensor and a calibrated GM sensor in two different locations in my 996 in applications from street to a DE at Road Atlanta and Land Speed Time Trials at Maxton NC where my Wife came within .5 MPH from a class record.
Hell I even have data gathered with one of the radiators taped up! (good for 3MPH!)
Well, regardless of what you claim, your thermostat will NOT maintain close to 180F on any stock 996. It won't even maintain 190F or 200F at all times..

I know that deception is sometimes needed to sell a product, but your deception is among the worse I have seen. It's too bad that the board does not have a way of disproving false claims before they allow venders to market their snake oil.
Old 02-16-2010, 08:40 AM
  #28  
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Boy did this thread turn into a can of worms.

I was told the they feel the head failures may be from hot spots on the head. I am not going to track the car. I am trying to prevent the 996 from self destruct mode. Im not looking to go faster.

I am trying to prevent a repair down the line. Not get more power.

Again, Like the IMS bearing I am big boy and had to make my own conclusion if this update was feasable. I feel it is.

No matter what mod you do to the car, No matter what screw you turn. Their is ALWAYS someone telling you, you are going to **** up your car... You learn to stay on track with what you have been told and seen and go from there.

Like i said in my other thead.... Its nothing 14 grand won't fix.
Old 02-16-2010, 11:07 AM
  #29  
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Originally Posted by Shark Attack
Boy did this thread turn into a can of worms.
ya think?
Old 02-16-2010, 11:47 AM
  #30  
Jake Raby
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Lets just see what Shark Attack's results are after he does the Lo Temp T stat install. Of all the units we have provided the only person that has stated they didn't see any gains was 1999Porsche911, oh well what would life be without a little drama.

I am simply stating what I have seen in my personal cars over the past 7 months, the same thing that most everyone else here does, excuse me for being a vendor and enthusiast.


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