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Old 07-05-2013, 02:23 PM   #1
nbrigdan
 
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Which creates more heat, front engine single turbo or centrifugal SC?

Title pretty much says it all, sorry for the newbie question, considering starting a new project and wanted to know simply which setup would give off more heat. A 70-80mm single turbo or a Vortech V-3 Si/similar supercharger, thanks! Also, how large would the difference be? And would the difference increase or decrease if the boost levels went up? I'm looking to run 6-8 PSI initially, then 15-18 later on with a built engine. **Engine bay heat
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Old 07-05-2013, 02:46 PM   #2
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Intake air heat or engine bay heat?
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Old 07-05-2013, 03:12 PM   #3
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Yeah, maybe a little more specific.

i guess one answer would be the turbo would give off more heat though as far as the unit goes.

Seeing as it requires the exhaust to operate, those manifolds and turbo gets very very hot.

a centrifugal blower will get to around normal engine bay temps and maybe a little bit hotter, but my money is the turbo itself will be hotter.
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Old 07-05-2013, 03:20 PM   #4
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My bad, updated the OP, thanks
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Old 07-05-2013, 03:34 PM   #5
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Turbo. Much more heat
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Old 07-05-2013, 04:13 PM   #6
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I say turbo. I have never seen a blanket on a centrifugal but a lot of turbos have them. My ysi gets plenty hot though. Just a bit too hot to touch. I am certain a turbo gets much much hotter.
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Old 07-05-2013, 04:35 PM   #7
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Quote:
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I say turbo. I have never seen a blanket on a centrifugal but a lot of turbos have them. My ysi gets plenty hot though. Just a bit too hot to touch. I am certain a turbo gets much much hotter.
well maybe because a centrifugal doesn't have an exhaust side? lol

turbo will run hotter, assuming EQUAL compressors that is either belt driven or exhaust driven, the exhaust driven version will run hotter, both inlet air temps and underhood temps and be a mess while at it.

There really isn't a way to have a 100% factory like clean installation with a single turbo on a V8, im not saying I don't like them.
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Old 07-05-2013, 04:59 PM   #8
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So how big would the difference in under the hood temperature be after say 3 hot laps of VIR or Laguna?
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Old 07-05-2013, 05:01 PM   #9
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"well maybe because a centrifugal doesn't have an exhaust side? lol"


That's what I meant.

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Old 07-05-2013, 05:05 PM   #10
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The turbo would be much much hotter. I've seen turbos glowing red after hard driving before.


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Old 07-05-2013, 08:50 PM   #11
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I wouldn't sweat a centri on a road course. I would leave the air intake elbow on it though or heat shield an ECS.
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Old 07-05-2013, 09:12 PM   #12
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Overly simplified answer.....

D1SC vs single turbo..... Granted this is a single turbo on a six, so all of the exhaust tubes are on the same side....
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Old 07-06-2013, 11:41 AM   #13
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Haha that gets the point across, thanks!
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Old 07-06-2013, 12:03 PM   #14
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Why not run twins located down where it is meant to get hot? Turbo power without engine bay heat or cooking anything up front, no belt issues, and more power.
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Old 07-06-2013, 02:34 PM   #15
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Quote:
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Why not run twins located down where it is meant to get hot? Turbo power without engine bay heat or cooking anything up front, no belt issues, and more power.
What he said......
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Old 07-06-2013, 02:45 PM   #16
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Quote:
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Why not run twins located down where it is meant to get hot? Turbo power without engine bay heat or cooking anything up front, no belt issues, and more power.
Quote:
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What he said......
That's just crazy talk!

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Old 07-12-2013, 08:03 AM   #17
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Dumb question, when the turbo and such is orange hot isnt it running lean?
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Old 07-12-2013, 08:51 AM   #18
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Quote:
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Dumb question, when the turbo and such is orange hot isnt it running lean?
Nope, that's normal.... I am going to mount a camera under the hood of my car the next time I run the mile, just to see how red my manifolds get at WOT for a full mile....

The back pressure of the turbo's cause a big build up of heat, hence the manifolds turning red... You may not see this in a short 1/4 mile run, but get on a long stretch and they'll do that....
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