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Old 9th September 2013, 11:16   #1
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Default Relocating the Intercooler

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We have an MM550 NGCS with an Isuzu 4JB1 TC iC engine. It has the intercooler installed on top of the engine. We have fitted a Scorpio scoop on the bonnet for air which it gets only when the vehicle is moving.

Will it be a better idea if I move the intercooler to the front of the radiator where the air flow is more due to the suction by the fan? Please suggest.

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Last edited by GTO : 9th September 2013 at 23:17.
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Old 9th September 2013, 14:20   #2
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Default re: Relocating the Intercooler

The best place for an intercooler is right in front of the radiator in the front of the car. There is enough ambient air up front coming through the air dam. The radiator fan on the other hand turns on and off based on engine requirements.
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Old 9th September 2013, 17:25   #3
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Default re: Relocating the Intercooler

IMHO the current position is also ok as the turbo will be under load only when the vehicle is moving. Revving the engine in neutral won't load the turbo.
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Old 9th September 2013, 19:42   #4
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Default re: Relocating the Intercooler

Hi,

If I may ask, why do you intend to move the intercooler from its current location?

A few things that might help you decide. A front mounted intercooler has a better cooling efficiency than a top mounted one, however, longer plumbing is needed, which I guess is not a good thing. Additionally, the front mounted intercooler will block a percentage of air to the radiator making the engine run hotter.
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Old 10th September 2013, 08:31   #5
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Default Re: Relocating the Intercooler

Quote:
Originally Posted by vivekjayasheel View Post
IMHO the current position is also ok as the turbo will be under load only when the vehicle is moving. Revving the engine in neutral won't load the turbo.
In offroad scenes the low gear crawl is just a walking pace with loads one cant imagine. Just think if a vehicle is not moving in normal first gear, it needs twice the effort , now from where the passing air quantity (compared to load & RPM of engine) will come from, at that " walking Pace " ??

BTW anyone thought of putting a fan on the engine top cooler ? Will save the relocating process . IMHO

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Old 10th September 2013, 09:28   #6
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Default Re: Relocating the Intercooler

Quote:
Originally Posted by Sudarshan View Post
BTW anyone thought of putting a fan on the engine top cooler ? Will save the relocating process . IMHO
Totally agree with you on this. The natural air under the hood wont be much for the intercooler which will be running through most of the drive. Specially in a hill climb and bumper to bumper slow traffic when RPM keeps going up and down. And sometimes when wind in not in your direction, the hood wont scoop any air for cooling.

To avoid plumbing guess a flat fan like this can be slipped under the heat sink. I believe these can be found in shops that sell Inverter/UPS components. They can continuously run for hours in hot environment.

Last edited by HillMan : 10th September 2013 at 09:29.
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