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Zook_Fan

az supporter
Joined: Thu Mar 13, 2008 10:30 pm Posts: 4530 Location: Toowoomba
Vehicle: Maruti and LJ80's
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 Posted: Sat Jul 19, 2008 2:17 am |
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Has anyone ever intercooled their sierra? What sought of benefits does it bring? What sought of cost does it bring? Is it only necesary with turbo's?
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Ashley
Joined: Sun Mar 04, 2007 10:30 pm Posts: 299 Location: Ballarat
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 Posted: Sat Jul 19, 2008 2:34 am |
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only turbos man. Cause they blow very hot air into the engine. Probably cause you to lose power on an NA sierra, just because it would restrict the air flow.
_________________ [IMG]http://img.photobucket.com/albums/v711/richmo
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Scrawny

I live here!
Joined: Tue Jan 29, 2008 10:30 pm Posts: 10528 Location: Brissie
Vehicle: Popemobile
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 Posted: Sat Jul 19, 2008 2:36 am |
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Intercooling is only nessasary with turbos. Do some research on the net and you will find out how and why and where. And no they don't work strung out the front like all the ricers do cos it was on that movie. Small pet peeve of mine
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Zook_Fan

az supporter
Joined: Thu Mar 13, 2008 10:30 pm Posts: 4530 Location: Toowoomba
Vehicle: Maruti and LJ80's
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 Posted: Sat Jul 19, 2008 2:50 am |
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what movie? doesnt matter thanks for helping me out
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zookkid
Joined: Fri Jul 11, 2008 11:30 pm Posts: 72 Location: BLUE MOUNTAINS
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 Posted: Sat Jul 19, 2008 3:20 am |
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the fast and the furious lol
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Mike

lesspostingmorewheeling
Joined: Tue May 06, 2008 11:30 pm Posts: 2236 Location: Under Down Under
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 Posted: Sat Jul 19, 2008 3:22 am |
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those movies are gay
give me running on empty or mad max any day 
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Zook_Fan

az supporter
Joined: Thu Mar 13, 2008 10:30 pm Posts: 4530 Location: Toowoomba
Vehicle: Maruti and LJ80's
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 Posted: Sat Jul 19, 2008 4:27 am |
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nah i have to admit i have all three of the fast and furious movies
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foolsp33d
Joined: Tue Mar 11, 2008 10:30 pm Posts: 2123 Location: Deep Inside Jamies Mouth
Vehicle: Clown Car..
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 Posted: Sat Jul 19, 2008 6:13 am |
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Mike wrote: those movies are gay give me running on empty or mad max any day  LOVE runnin On Empty! picked it up for $8. a few months ago on DVD. bARGAIN! "Whats ya name?" Quote: "Piss off!"
"Piss off? What type of a name is that?"
"Its polish. Pissov's a Polish name!"
"OK sheryl, getcha gear off"
"not now Ram, ya so slow"
"a polak and a spag! what are ya trying to do? lower housing prices!"
mike - "she still snatches in second"
tony - "yeah, i know"
mike - "she winds up ok, but,,, i'm just loosing too much on the changes"
tony - "yeah , you would do"
mike - "yeah,,, so waddaya reckon?"
tony - "she still snatches in second"
mike - "yeah that just could be it!!!"
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Hybrid

az supporter
Joined: Mon Apr 21, 2008 11:30 pm Posts: 1095 Location: Bulimba, Brisbane
Vehicle: '92 Sierra
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 Posted: Sat Jul 19, 2008 1:36 pm |
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Dont forget superchargers guys. They need a dirty ricer intercoolers too lol. Unless your running low enough boost pressure. Zook Fan the basis of forced induction is to increase the pressire of the inlet air. The higher the pressure, the more oxygen molecules there are to be used in combustion. More oxygen (and more fuel of course) means more power. Of course physics steps in and ruins it. Increasing pressure increases temperature. Hotter intake air leads to all kinds of dramas. So after the air is pressurised it is passed through the intercooler to try to wash off some of this heat energy. The idea is to try and get it at or below room temperature before entering the engine. Because non turbo'd/supercharged engines are taking in uncompressed intake air they are already at room temp. So no need for an intercooler.
As for having them mounted in front as opposed to mounting on top of course it works better. It is in the direct path of the coolest air flow and doesnt have to worry about heat soak from the engine bay, epsecially the top of the engine. 
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Fatzook

az supporter
Joined: Sat Oct 27, 2007 11:30 pm Posts: 14977 Location: The Hills
Vehicle: Vitara, NGV
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 Posted: Sat Jul 19, 2008 2:00 pm |
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Hybrid wrote: Dont forget superchargers guys. They need a dirty ricer intercoolers too lol. Unless your running low enough boost pressure. Zook Fan the basis of forced induction is to increase the pressire of the inlet air. The higher the pressure, the more oxygen molecules there are to be used in combustion. More oxygen (and more fuel of course) means more power. Of course physics steps in and ruins it. Increasing pressure increases temperature. Hotter intake air leads to all kinds of dramas. So after the air is pressurised it is passed through the intercooler to try to wash off some of this heat energy. The idea is to try and get it at or below room temperature before entering the engine. Because non turbo'd/supercharged engines are taking in uncompressed intake air they are already at room temp. So no need for an intercooler. As for having them mounted in front as opposed to mounting on top of course it works better. It is in the direct path of the coolest air flow and doesnt have to worry about heat soak from the engine bay, epsecially the top of the engine. 
I concur with all of this. IC is in most conditions, better at the front.
Thats where mine was...
Peter
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Scrawny

I live here!
Joined: Tue Jan 29, 2008 10:30 pm Posts: 10528 Location: Brissie
Vehicle: Popemobile
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 Posted: Sat Jul 19, 2008 2:06 pm |
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I agree, out front is better. Expect it needs to be recessed so there is a ram air effect. Most guys just have it tacked on the front and cut away bumpers to make it fit, this just adds an extra crumple zone  .
Air molecules are lazy, if it is easier to go around something they will. If the intercooler is recessed and ducted then the molecules have no choice but to go through..
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Damo

az supporter
Joined: Sat Jul 22, 2006 11:30 pm Posts: 4661 Location: Brisbane
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 Posted: Sat Jul 19, 2008 3:23 pm |
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ScrawnC wrote: I agree, out front is better. Expect it needs to be recessed so there is a ram air effect. Most guys just have it tacked on the front and cut away bumpers to make it fit, this just adds an extra crumple zone  . Air molecules are lazy, if it is easier to go around something they will. If the intercooler is recessed and ducted then the molecules have no choice but to go through..
Is that why radiators have a fan shroud? 
_________________ SJ50.4.LYF
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Scrawny

I live here!
Joined: Tue Jan 29, 2008 10:30 pm Posts: 10528 Location: Brissie
Vehicle: Popemobile
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 Posted: Sat Jul 19, 2008 3:29 pm |
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You'd be suprised how much of a difference a shroud makes to some cars, particulary if the fan is a long way from the radiator (ie;Pootrol 4 cylinder diesel)
I'm probably preaching to the choir though 
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