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Location:
Madrid - Spain
Registered:
August 2002
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Re: intercool
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Wed, 08 January 2003 12:18
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If you want to know exactly how much effect an intercooler makes, do the maths. The difference in density directly proportional to the temperature ratio.
For a turbo/supercharged car, use the following equation.
Pressure Difference = (inlet air temp/outlet air temp)*pressure ratio.
Note that temp is in Kelvin, Kelvin = Celsius + 273
in your case, measure the inlet temp after the turbo, and divide by the outside air temp. My guess is that at say 0.5bar (7psi) boost (pressure ratio = 1.5), you will have an inlet temp say 80 degrees greater than ambient.
Density difference = (298/(298+80))*1.5 = 1.2
= 1.2 times non turbo density.
If you put on an intercooler that knocks off say 50 degrees, the difference equals
Density difference = (298/(298+30))*1.5 = 1.3
= 1.3 times non turbo density.
theoretically if your 4age puts out 100kw, with the turbo, it will put out 120kw and with an intercooler it will put out 130kw.
Not bad huh. Without making your turbo work any harder, you gained about half the increase that just the turbo gave you.
Have fun and ceep cool.
ps. have you seen the yellow RA28 with the twin turbo lexus V8 in it. He uses a liquid/air cooler and runs his coolant pipes through an eski full of dry ice. This gives him inlet temperatures a few degrees less than ambient, you do the maths.
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| | Subject | Poster | Date |
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intercool
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pulcino | Fri, 03 January 2003 20:30 |
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Re: intercool
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rollaboy | Fri, 03 January 2003 23:04 |
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Re: intercool
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xxpunkerxx | Sat, 04 January 2003 11:25 |
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Re: intercool
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pulcino | Sat, 04 January 2003 12:54 |
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Re: intercool
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mx83toy | Sat, 04 January 2003 23:42 |
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Re: intercool
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Remedy | Sun, 05 January 2003 13:41 |
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Re: intercool
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Norbie | Mon, 06 January 2003 00:51 |
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Re: intercool
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Remedy | Mon, 06 January 2003 02:32 |
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Re: intercool
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mx83toy | Mon, 06 January 2003 04:05 |
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Re: intercool
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MR. 2 | Mon, 06 January 2003 02:56 |
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Re: intercool
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MR. 2 | Mon, 06 January 2003 03:01 |
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Re: intercool
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BigWorm | Mon, 06 January 2003 05:50 |
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Re: intercool
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mx83toy | Mon, 06 January 2003 23:05 |
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Re: intercool
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RWDboy | Mon, 06 January 2003 07:21 |
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Re: intercool
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Norbie | Mon, 06 January 2003 07:34 |
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Re: intercool
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pulcino | Mon, 06 January 2003 10:48 |
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Re: intercool
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Norbie | Mon, 06 January 2003 12:52 |
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Re: intercool
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pulcino | Tue, 07 January 2003 00:28 |
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Re: intercool
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RWDboy | Tue, 07 January 2003 04:59 |
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Re: intercool
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Norbie | Tue, 07 January 2003 05:33 |
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Re: intercool
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RWDboy | Tue, 07 January 2003 05:38 |
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Re: intercool
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pulcino | Tue, 07 January 2003 05:39 |
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Re: intercool
|
gold28 | Wed, 08 January 2003 12:18 |
