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Intercoolers - How Does The 911 Turbo Manage Charge Temp?


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#1 NDT

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Posted 03 July 2015 - 09:10 AM

Just for Friday fun, how about a new twist on the perennial intercooler vs chargecooler debate?

 

I get the pros and cons of each. Just one thought...

The 911 turbo has (IIRC) always been intercooled.

It seems to manage using air to air cooling, handling a lot more charge than the VXT, with a couple of intakes down the sides...

The intakes don't even look very big.

So how does it do it?

 

And instead of spending loads of cash on chargecoolers etc, what about running a second intercooler  by the intake top hat, venting up through the grille, and ducting the air from the nearside turbo ear to it?

 

Nick



#2 siztenboots

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Posted 03 July 2015 - 09:14 AM

because it runs a tiny amount of boost , its more or less than same turbo , just two of them



#3 NDT

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Posted 03 July 2015 - 09:44 AM

because it runs a tiny amount of boost , its more or less than same turbo , just two of them

Bugger, there I was thinking I'd found the holy grail....



#4 siztenboots

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Posted 03 July 2015 - 09:46 AM

also the frontal area of both intercooler is likely a lot bigger than lotus effort



#5 mbes2

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Posted 03 July 2015 - 10:32 AM

this one ?

 

Posted Image

 

first time seeing this before..

 

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then the little VX version

 

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#6 stu8v

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Posted 03 July 2015 - 10:38 AM

I think im going to fabricate my own charge cooler over this winter. I reckon its easily doable for sensible money, if you have the skills.

#7 NDT

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Posted 03 July 2015 - 11:09 AM

I've got a prototype Focus RS one and a Peugeot one sitting at home too...

The basis of a project...



#8 stu8v

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Posted 03 July 2015 - 11:41 AM

Im thinking gtfour good for 300+ std

#9 Andrew aka Stuwy

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Posted 03 July 2015 - 12:12 PM

as I understand it its not making the power that's the issue, its keeping the power after more than 2 runs


Edited by Stuwy, 03 July 2015 - 12:13 PM.


#10 NDT

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Posted 03 July 2015 - 12:17 PM

as I understand it its not making the power that's the issue, its keeping the power after more than 2 runs

Do you mean for the 911 or the VXT or Celica?

Or all of the above?!



#11 Duncan VXR

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Posted 03 July 2015 - 12:58 PM

The bigger i/c used on the Elise starts to struggle past 300 due to air flow through it 911 from my limited playing the air through and out of i/c better design than vxt one Its getting the air out also that can play its part in prolonged cooling

#12 Rosssco

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Posted 03 July 2015 - 01:08 PM

Im thinking gtfour good for 300+ std

 

ST205 Cores operate to 350-ish and slightly above on MR2's quite well thumbsup

 

Cheap and come with integrated heater tank.



#13 NDT

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Posted 03 July 2015 - 01:36 PM

The bigger i/c used on the Elise starts to struggle past 300 due to air flow through it 911 from my limited playing the air through and out of i/c better design than vxt one Its getting the air out also that can play its part in prolonged cooling

My observation on the 911 is that the air intakes don't look big - it's just that both get used for the intercooler.

The exit is obviously way more effective than for the VXT.

 

The fact that the intercooler is so much bigger should help just in terms of thermal inertia.



#14 turbotoaster

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Posted 04 July 2015 - 09:26 AM

Posted Image


Edited by turbotoaster, 04 July 2015 - 09:26 AM.


#15 turbotoaster

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Posted 04 July 2015 - 09:58 AM

im going to be fitting a rs500 intercooler to mine to see if I can maintain decent temps while saving weight and relying less on electrical products which will help with reliability.

 

did try and post a picture up of it but my work computer wont let me post it in, ill upload a pic when I get home, but if you find my thread on seloc you will see it on the 2nd to last page



#16 turbotoaster

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Posted 04 July 2015 - 11:52 PM

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