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> I would like your opinions on intercooler mount, fabrication into the trunk lid
iamchappy
post Feb 24 2005, 09:39 PM
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I am playing around with different options on installing the intercooler in the trunk. let me know what you all think. Oh, by the way I fired up the new turbo install today, man does it sound sweet.


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eeyore
post Feb 25 2005, 02:59 PM
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I'll be the a-hole on NACA ducts.

To quote:
The purpose of a NACA duct is to increase the flowrate of air through it while not disturbing the boundary layer. When the cross-sectional flow area of the duct is increased, you decrease the static pressure and make the duct into a vacuum cleaner, but without the drag effects of a plain scoop. The reason why the duct is narrow, then suddenly widens in a graceful arc is to increase the cross-sectional area slowly so that airflow doesn't separate and cause turbulence (and drag).

The NACA duct and spoiler combination seem to be a cross purposes. A spoiler creates drag, the NACA duct is to eliminate drag. The NACA duct also exists to suck air in where there isn't enough pressure to push it in. Yet, the purpose of a spoiler is to hold a pile of air on the rear of the car, which equals the pressure you need to push air into the car. You either need one or the other. To have both seems functionally 'rice-like' -- such as putting a wing on the back of a FWD car.

I'd go with a 930 look. Push the intake back to the base of the spoiler, and set the grill/intake so it is below the surface of the decklid, like a shallow funnel.
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iamchappy   I would like your opinions on intercooler mount   Feb 24 2005, 09:39 PM
db9146   I like the "spoiler" idea. There is likely to be ...   Feb 24 2005, 09:48 PM
iamchappy   The spoiler and the naca ducts are the ones that I...   Feb 24 2005, 09:50 PM
Carrera916   Ummm.... I liked the looks and setting of the spo...   Feb 24 2005, 10:34 PM
Aaron Cox   spoiler.... it sees air at speed causing it to fun...   Feb 24 2005, 10:46 PM
Jeroen   I think the spoiler setup will work best (for reas...   Feb 25 2005, 07:04 AM
iamchappy   If I went with the forward position with the grill...   Feb 25 2005, 07:42 AM
Jeroen   A fan would surely help if you put it to the front...   Feb 25 2005, 08:02 AM
iamchappy   Here are some ideas for exit air.   Feb 25 2005, 08:36 AM
iamchappy   another   Feb 25 2005, 08:37 AM
iamchappy   another   Feb 25 2005, 08:42 AM
iamchappy   Another idea came to mind, Have a door open on pos...   Feb 25 2005, 10:10 AM
soloracer   I like the NACA duct and spoiler model. I was con...   Feb 25 2005, 01:19 PM
Reiche   Looks like some air hits the very back of the trun...   Feb 25 2005, 01:37 PM
mike_the_man   I'm going to toss my hat in for the spoiler id...   Feb 25 2005, 01:41 PM
iamchappy   I just taped off the spoiler to see how it looks, ...   Feb 25 2005, 01:50 PM
mattillac   NACA ducts, vent between the tail lights and a fan...   Feb 25 2005, 01:59 PM
Cloudbuster   I'll be the a-hole on NACA ducts. To quote: T...   Feb 25 2005, 02:59 PM
iamchappy   Well I started to rough it in. I will still have t...   Feb 25 2005, 06:51 PM
mattillac   that looks pretty cool. nevermind the naca ducts. ...   Feb 25 2005, 07:00 PM
iamchappy   I want to keep it with the vintage look so I decid...   Feb 25 2005, 07:09 PM
iamchappy   A better picture of the hole I started to make   Feb 25 2005, 07:12 PM


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