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I like the way you think. I would like to ask you a few question please:smile:
Ok so an NSX was built as an all motor car and the cooling system was made for the NA motor. Now we are adding a turbo charger to the mix.

As you already know:

1)The turbo runs off the exhaust gases of an engine creating back pressure between the heads and the turbo to push the wheel on the turbo, now the back pressure in the headers have more energy causing more heat then stock, therefor the heads of the car are at a higher temp now.

2) Since the turbo runs from the exhaust gasses the turbo spools up causing it to reach very high temps (i think over 1500 degrees), being it a watercooled turbo the coolant temps are pretty high now.

You stated that the coolant temp will increase at 3.3*c at WOT is this the same for NA motors and FI motor? Then is it same for FI motors at low boost as to high boost as to extreme high boost? I would like to know this because I have a turbocharged honda civic 2.0 GSR motor and I can go from making 300 whp to 800whp with a flip of a switch on the boost controller. It makes 800whp at about 32-34 psi of boost on a fairly large turbo so does the equation stay the same? The more air and fuel I pack in the cyclinder the the more power I make creating more energy that needs to be absorbed by the coolant.

I'm quoting this directly from Garrett http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech101.html

You stated above about using oil cooled turbos, the oil going to the turbo is not for cooling purposes, but the oil supply is for the bearing in the center of the turbo.

Now lets just take into account all the extra heat/energy we have added to the mix of a stock cooling system. So accordingly the cooling system need to be brought up to par, which would mean upgrading to a larger/more coolant capacity radiator and what ever else it takes to keep everything under good operating condition.

I agree that just changing the thermo to a lower *thermo is not enough but I think it gives many a peace of mind, also does having a lower temp thermo hurt the engine in any way? if not then its phycological insurance for the driver or builder and is worth the $50 or $60 to them.

P.S. I don't have a degree in anything yet but have alot of hands on experience (not intended towards anyone):tongue:

Thanks
Rahim

<blockquote data-quote="96cxt" data-source="post: 1273310" data-attributes="member: 18444">I like the way you think. I would like to ask you a few question please:smile:Ok so an NSX was built as an all motor car and the cooling system was made for the NA motor.&nbsp; Now we are adding a turbo charger to the mix. As you already know:1)The turbo runs off the exhaust gases of an engine creating back pressure between the heads and the turbo to push the wheel on the turbo, now the back pressure in the headers have more energy causing more heat then stock, therefor the heads of the car are at a higher temp now.2) Since the turbo runs from the exhaust gasses the turbo spools up causing it to reach very high temps (i think over 1500 degrees), being it a watercooled turbo the coolant temps are pretty high now. You stated that the coolant temp will increase at 3.3*c at WOT is this the same for NA motors and FI motor? Then is it same for FI motors at low boost as to high boost as to extreme high boost? I would like to know this because I have a turbocharged honda civic 2.0 GSR motor and I can go from making 300 whp to 800whp with a flip of a switch on the boost controller. It makes 800whp at about 32-34 psi of boost on a fairly large turbo so does the equation stay the same? The more air and fuel I pack in the cyclinder the the more power I make creating more energy that needs to be absorbed by the coolant. I&#039;m quoting this directly from Garrett <a href="http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech101.html" target="_blank">http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech101.html</a>You stated above about using oil cooled turbos, the oil going to the turbo is not for cooling purposes, but the oil supply is for the bearing in the center of the turbo.Now lets just take into account all the extra heat/energy we have added to the mix of a stock cooling system. So accordingly the cooling system need to be brought up to par, which would mean upgrading to a larger/more coolant capacity radiator and what ever else it takes to keep everything under good operating condition.I agree that just changing the thermo to a lower *thermo is not enough but I think it gives many a peace of mind, also does having a lower temp thermo hurt the engine in any way? if not then its phycological insurance for the driver or builder and is worth the $50 or $60 to them.P.S. I don&#039;t have a degree in anything yet but have alot of hands on experience (not intended towards anyone):tongue:ThanksRahim</blockquote>

[QUOTE="96cxt, post: 1273310, member: 18444"] I like the way you think. I would like to ask you a few question please:smile: Ok so an NSX was built as an all motor car and the cooling system was made for the NA motor. Now we are adding a turbo charger to the mix. As you already know: 1)The turbo runs off the exhaust gases of an engine creating back pressure between the heads and the turbo to push the wheel on the turbo, now the back pressure in the headers have more energy causing more heat then stock, therefor the heads of the car are at a higher temp now. 2) Since the turbo runs from the exhaust gasses the turbo spools up causing it to reach very high temps (i think over 1500 degrees), being it a watercooled turbo the coolant temps are pretty high now. You stated that the coolant temp will increase at 3.3*c at WOT is this the same for NA motors and FI motor? Then is it same for FI motors at low boost as to high boost as to extreme high boost? I would like to know this because I have a turbocharged honda civic 2.0 GSR motor and I can go from making 300 whp to 800whp with a flip of a switch on the boost controller. It makes 800whp at about 32-34 psi of boost on a fairly large turbo so does the equation stay the same? The more air and fuel I pack in the cyclinder the the more power I make creating more energy that needs to be absorbed by the coolant. I'm quoting this directly from Garrett [URL="http://www.turbobygarrett.com/turbobygarrett/tech_center/turbo_tech101.html"][/URL] You stated above about using oil cooled turbos, the oil going to the turbo is not for cooling purposes, but the oil supply is for the bearing in the center of the turbo. Now lets just take into account all the extra heat/energy we have added to the mix of a stock cooling system. So accordingly the cooling system need to be brought up to par, which would mean upgrading to a larger/more coolant capacity radiator and what ever else it takes to keep everything under good operating condition. I agree that just changing the thermo to a lower *thermo is not enough but I think it gives many a peace of mind, also does having a lower temp thermo hurt the engine in any way? if not then its phycological insurance for the driver or builder and is worth the $50 or $60 to them. P.S. I don't have a degree in anything yet but have alot of hands on experience (not intended towards anyone):tongue: Thanks Rahim [/QUOTE]

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