Do turbos affect engine temps
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Joined: Sep 2007
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From: woodbine, md
Do turbos affect engine temps When I am driving along, my temps are good, around 185, but when I slow down, or idle, they jump up pretty quick, like 10 degs in a matter of seconds. I was wondering in the exhaust does it, lets face it with 8 cyls trying to push thru a small T4 opening would have to create a bottle neck until it got to spinning fast. I figure the intercooler is doing its share of blocking air until the fans kick in. I have my fans staged, first one kicks in at 200, off at 195, second is 205/200. Thought about moving the first one to 195/190, but it might run to much.
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When I am driving along, my temps are good, around 185, but when I slow down, or idle, they jump up pretty quick, like 10 degs in a matter of seconds. I was wondering in the exhaust does it, lets face it with 8 cyls trying to push thru a small T4 opening would have to create a bottle neck until it got to spinning fast. I figure the intercooler is doing its share of blocking air until the fans kick in. I have my fans staged, first one kicks in at 200, off at 195, second is 205/200. Thought about moving the first one to 195/190, but it might run to much.
My low speed comes on at 185 and it pretty much holds 195 all the time. Occasionally sitting still on a hot day it will creep up till high speed kicks on at 205 and it drops right back to 195
If you are moving down the road, air is passing through the radiator. So thats normal for it to be at 185. When you stop and the fans arent on, how is air going to be forced through the radiator to keep it cool? its not. Temp will jump up very quickly till fan turn on. This is normal. No offense, but i'd think that would be evident? lower the fan temp that you want the engine to stay at. You cant expect the temps to stay below 200 if you have no air moving across it and fans are off.
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A non-turbo setup (NA/blower/etc.) only has the header primaries in the engine bay. A turbo setup not only has a large heat sink in the engine bay, but the entire hot side. It's like running an entire exhaust system with a muffler under the hood. All that piping is trying to get the heat released as convection into the air which is mostly trapped in the engine bay. That's why turbo blankets, high temp wrap/coatings, and fans are so important.
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When I am driving along, my temps are good, around 185, but when I slow down, or idle, they jump up pretty quick, like 10 degs in a matter of seconds. I was wondering in the exhaust does it, lets face it with 8 cyls trying to push thru a small T4 opening would have to create a bottle neck until it got to spinning fast. I figure the intercooler is doing its share of blocking air until the fans kick in. I have my fans staged, first one kicks in at 200, off at 195, second is 205/200. Thought about moving the first one to 195/190, but it might run to much.
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From: Newville, PA
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From: Norn Iron
When I am driving along, my temps are good, around 185, but when I slow down, or idle, they jump up pretty quick, like 10 degs in a matter of seconds. I was wondering in the exhaust does it, lets face it with 8 cyls trying to push thru a small T4 opening would have to create a bottle neck until it got to spinning fast. I figure the intercooler is doing its share of blocking air until the fans kick in. I have my fans staged, first one kicks in at 200, off at 195, second is 205/200. Thought about moving the first one to 195/190, but it might run to much.
You've already answered your own question.
You need airflow.