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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 06-19-2007, 06:58 PM   #1
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Custom air Cooling

I am working on putting cooling ducts into my car anyone have good ideas on wear to place the ducts??? i putting one to the air intake to bring in more(cooler air) anyone have ideas on were to place 2nd pipe?
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Old 06-19-2007, 07:21 PM   #2
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There have been several things I have seen done. Hood mounted duct. (Not efficient.) Corner/Head/Fog light ram air setups of all sorts. These seem to work better. However, anything other than an airbox mod is kind of a waste of cash and time till you are up over 350hp or so.
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Old 06-19-2007, 07:31 PM   #3
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Getting cooler air into the engine will always be beneficial.... the trick is actually pulling it off.

Keep in mind that no matter how much difference a cooling duct will make (realistically not really all that much), the air still has to go through the quite hot turbo before entering the engine. You'll get much better results from trying to focus on cooling the air between the turbo and the throttle body - that's what an intercooler is for.

I saw that ricot83 had a interesting method for slightly increasing the efficiency of his intercooler - he's got a duct behind the bumper and above the IC to make sure that the air going through the IC opening is going through the IC rather than above it.



That might be something to look into.
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Old 06-19-2007, 07:32 PM   #4
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Here, check this out:

http://www.cardomain.com/ride/458565/2

That's a pretty common mod. I think it's the 7th picture down.
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Old 06-19-2007, 07:34 PM   #5
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Here, check this out:

http://www.cardomain.com/ride/458565/2

That's a pretty common mod. I think it's the 7th picture down.
*nod*



That actually increases the surface area of the opening to the intake box, so it's able to take in air a bit more easily. Definitely worth doing on the stock air box.
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Old 06-19-2007, 07:35 PM   #6
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And you get to use a dremel!


Bonus!
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Old 06-19-2007, 07:36 PM   #7
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And you get to use a dremel!


Bonus!
I used dynamite on mine

Okay, maybe not...
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Old 06-19-2007, 08:37 PM   #8
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well i thinking that just putting cooler air on the Turbo may drop its temp a few degrees might add a few HP. And maybe one by the Delivery pipe just to help keep temps a few degrees cooler
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Old 06-19-2007, 09:01 PM   #9
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You could do that too, but the airbox mod works, and is real easy to do.

I say try both.
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Old 06-19-2007, 09:03 PM   #10
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You could do that too, but the airbox mod works, and is real easy to do.

I say try both.
Truth.
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Old 06-19-2007, 09:21 PM   #11
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petrol on SC put a duct in his hood right over the intake, and he never saw any real gains form it.

you can also do the fog light ram air setup, someone on SC also has that done, but again I dont think you'll see and good results.


you might want to be concerned about cooling the air AFTER the turbo, maybe a better IC, or a IC sprayer kit of some sort
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Old 06-19-2007, 09:38 PM   #12
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basically wat i done is i taken some ductwork for house and coated it in 1200 degree paint and then i put the bottom by fog lights and routed air into the engine bay just to throw cooler air in there...

Palmer your alsways on here do you ever sleep??/
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Old 06-20-2007, 05:15 AM   #13
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i recently moved my front temp sensor into my engine bay to check under hood temps for a cpl days, and on 85* days, after about 20 minutes of normal driving or about 10 of hard driving, underhood temps were maxing out the SID reading at 121* F. So i think any nice cool air under there would be a help.

Has anyone removed the rear "weather stripping" or whatever you want to call it on the back of the hood? I have heard from other people that they have removed it to allow the air to have somewhere to escape to, makes sense but dont know how functional it really is.
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Old 06-20-2007, 05:21 AM   #14
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Has anyone removed the rear "weather stripping" or whatever you want to call it on the back of the hood? I have heard from other people that they have removed it to allow the air to have somewhere to escape to, makes sense but dont know how functional it really is.
I cut out a ~15" section in the middle of it.... no clue if it actually did anything.
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Old 06-20-2007, 07:11 AM   #15
 
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If you really want to go crazy with ducting, replace a fog light with a duct and run it up to the intake pipe.
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Old 06-20-2007, 07:15 AM   #16
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If you really want to go crazy with ducting, replace a fog light with a duct and run it up to the intake pipe.
i already ran in the spot next to the fog light.
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Old 06-20-2007, 07:42 AM   #17
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Three Cheap and Easy Cooling Mods:

Remove weather strip at the back of the hood.

Remove underhood liner.

Do the Throttle Body coolant bypass mod.

With all three, you might see a change.
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Old 06-20-2007, 07:48 AM   #18
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Three Cheap and Easy Cooling Mods:

Remove weather strip at the back of the hood.

Remove underhood liner.

Do the Throttle Body coolant bypass mod.

With all three, you might see a change.
my cars is sitting at about 118-117 degrees under hood.
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Old 06-20-2007, 07:57 AM   #19
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So remove the hood, problem solved.
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Old 06-20-2007, 08:00 AM   #20
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So remove the hood, problem solved.
street legal please!!! safe!!!
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