i have noticed that a lot of you guys have scoops fitted onto the decklids . could you post pics and let me know where you get them from. as i would like to see whats avalible out there. thanks.
The Mustang hood scoops are common. I also used one from a late-model Dodge pickup truck for a customer. I had to widen it 4" to cover the decklid. See photos below.
It's similar to the Mustang scoop, but isn't as boxy looking.
[This message has been edited by Blacktree (edited 06-30-2010).]
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01:27 PM
Daredevil05 Member
Posts: 2345 From: South Jersey 08077 Registered: Oct 2006
The front hood up is a big give away clue. I know that car but I won't let the cat out of the bag. All I can say that it is one of nicest looking Fiero around to this date.
quote
Originally posted by Blacktree:
The Mustang hood scoops are common. I also used one from a late-model Dodge pickup truck for a customer. I had to widen it 4" to cover the decklid. See photos below.
It's similar to the Mustang scoop, but isn't as boxy looking.
[This message has been edited by Daredevil05 (edited 08-13-2009).]
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02:02 PM
wyatt Member
Posts: 112 From: melbourne australia Registered: Mar 2009
Thanks for all the pics guys. That yellow one is cool.. now with fitting do they need to be fibreglassed in as 2.5 member asked? or do they just bolt on like a wrx hood scoop? If its complicated and needs fibreglassing I will probably get a shop to do it as ive never fibreglassed before. Do you have the scoops as cosmetic upgrades only or is there a functional reason for fitting them on your cars. I plan on fitting a turbo in the future with a top mount intercooler, So the scoop will give me more room to fit the intercooler.. and allow it to get fresh air via some type of thermo fan i will fit also. thanks Wyatt
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05:58 PM
Blacktree Member
Posts: 20770 From: Central Florida Registered: Dec 2001
It depends on the scoop. Most of the Mustang hood scoops have built-in bolts, so you can just bolt 'em on. The six-pack scoops like on the yellow car usually do not have mounting hardware. Some have a lip around the edge that can be used to tape or fiberglass it on.
If you intend to have the scoop molded in, make sure it's fiberglass, not plastic. Fiberglass doesn't bond to ABS plastic very well. (the plastic ones are usually ABS)
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06:08 PM
falcon_ca Member
Posts: 1295 From: Chicoutimi, Quebec, Canada Registered: Dec 2007
I plan on fitting a turbo in the future with a top mount intercooler, So the scoop will give me more room to fit the intercooler.. and allow it to get fresh air via some type of thermo fan i will fit also. thanks Wyatt
You may want to look at doing that 1st so you know you get a scoop big enough. You can attach them many ways, but fiberglassing looks the best when done well.
What do these scoops do? Just vent hot air out? since they are facing the rear of the car they arent bringing in any air or are they?
Some members have done their own "wind tunnel" tests (using strips of streamers and such) and have found that air actually wraps up around the rear of the car towards the rear window. The air actually then flows into the scoop down into the engine bay.
That looks a little more like the early second generation Trans Am (1970-1976) shaker as opposed to the later second generation (1977-1981) since it's more rounded instead of chiseled with sharper lines.
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11:59 PM
Jun 30th, 2010
rogergarrison Member
Posts: 49601 From: A Western Caribbean Island/ Columbus, Ohio Registered: Apr 99
The way the air goes thru the engine compartment to cool is its sucked up from underneath and goes out thru the factory vent....or any you add on. You dont want any air forced in at the top. It would not allow the heat to escape as easily and actually make the engine bay run hotter.
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12:21 PM
Francis T Member
Posts: 6620 From: spotsylvania va. usa Registered: Oct 2003
The way the air goes thru the engine compartment to cool is its sucked up from underneath and goes out thru the factory vent....or any you add on. You dont want any air forced in at the top. It would not allow the heat to escape as easily and actually make the engine bay run hotter.
Roger, you are only partly right. The air that comes up through the grates is not very great as far as my experiments have found, and in case you missed it, in the center of the deck the air runs forward and with high force when at speed. In stock configuration it turns into turbulence behind the window as the air spill over the roof line.
This is the reason the rear facing scoops draw air into the engine bay when at speed. The air still exits out the grates, but, if you want it to work well in hot conditions, you want a fan to blow in toward the engine and not out. When I had fans blowing out, they actually stalled at about 60 mph.
Arn
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06:47 PM
Oct 20th, 2010
GADJet Member
Posts: 1466 From: Star City, AR, USA Registered: Sep 2010
The whole thing with airflow sounds alot like the tailgate up/tailgate down controversy on pick up trucks, which was put to rest by the Mythbusters. We know that airflow will always go from a high pressure area to a low pressure area, so the way I see it is that the area directly behind the rear window is a low pressure area causing the high pressure air coming over the roofline to curve back around into a bubble alot like the tailgate myth. So yeah, I could see cool air going into the scoop. If you look at it another way, it's the same principle as a cowl induction scoop: high pressure air hitting the windshield goes into the scoop because of the lower pressure air in the engine compartment.
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