I have a couple of Gen III Trans Am (85-92) hood scoops that I would like to install. I have found a couple of images of Fieros with these vents installed (one link below), but couldn't locate any info on the forum from members installing on their cars. The orientation of the vents in the link below is correct regarding the angles of the vent fins. I've seen some installed with the longer edge away from the front side of the hood, but that seems wrong for air flow exiting the hood.
My concern is where to cut the holes. The underside of the hood (just above the coolant fan with the hood closed) is where they will go. Has anyone installed these on their car? If so, do you have pictures that you could share detailing the underside of the hood so I can see where to cut?
The vents fit slush with the outside hood surface on the Firebirds, but they also have a recessed stamped area for them to attach. I assume that these should be installed so that the vent outer flange sits on top of a Fiero hood. Not sure how they should be secured. There are two plastic studs on the underside of one side of the vent, but the tabs on the other side look like they may need to be cut off and something else fabricated.
My apologies of the length of this message ... just trying to provide a thorough description of what I am attempting to accomplish. Pics would be greatly appreciated!!

http://images.thetruthabout...IMG_3589-450x337.jpg

I stole these pics from Jscott1.

Thanks IMSA. That helps a lot.

quote Originally posted by gtoformula: I have a couple of Gen III Trans Am (85-92) hood scoops that I would like to install.

I believe "vents" might be a better term.

These are scoops.

So ... do you have any nice "vent" images?

quote Originally posted by IMSA GT: I stole these pics from Jscott1.

Those look upside down from what I had on my old 88GT before I smashed it into a concrete wall at Seekonk Speedway back in 2003...

Just some from online






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doubtec4 sells these

https://www.fiero.nl/forum/Forum4/HTML/071291.html

I did it like this:

The red t-top posted above is my car. The vents are actually from a 1986 Pontiac Sunbird turbo.

quote Originally posted by SERGE144: I did it like this:

You reversed them from what the t/a has,, is there a reason you put them so far forward? on the t/a they are after the headlight doors..

to the o/p if you ant them flush, you'll have to fiberglass, a lip on the underside of the hood..

quote Originally posted by Patrick: I believe "vents" might be a better term. These are scoops.

And technically that's a formula not a TA, I never remember a TA of any age, except the 69 having anything but the shaker scoop.



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and one big pain in the ass when it doesn't



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[This message has been edited by 84fiero123 (edited 04-02-2016).]

quote Originally posted by 84fiero123: And technically that's a formula not a TA, I never remember a TA of any age, except the 69 having anything but the shaker scoop.

...yup...here's my '79...

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[This message has been edited by Thunderstruck GT (edited 04-19-2016).]

Back on track....on the t.a.''s that I've seen, (around 88) these vents are non functional. They are of no use whatsoever on those cars. It's closed off on those as well as the longer skinny ones towards the rear of the hood. I have both these and the long skinny ones on my car. They are both functional but, the angled square ones pictured above on my car, the fins are facing the wrong way. I bought the hood already made like that so I'm stuck unless I want to cut another hood. They look better facing the wrong way but I think they hurt the cooling. Don't know how to post pics from my phone or I'd show you. Or I can email someone if they want to post them.

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[This message has been edited by Thunderstruck GT (edited 04-19-2016).]

quote Originally posted by Thunderstruck GT:

Those are not std

quote Originally posted by 84fiero123: And technically that's a formula not a TA, I never remember a TA of any age, except the 69 having anything but the shaker scoop.

I was demonstrating what a "scoop" looked like. I never said the car was a Trans Am. Be grateful I never pictured a Mustang.

And if you wish to get technical... if it's facing towards the back if the car, is it actually still considered a "scoop"?

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[This message has been edited by Thunderstruck GT (edited 04-19-2016).]

quote Originally posted by Thunderstruck GT: The car who's hood has the vents that you people are referring to is the Trans Am GTA and the vents were functional heat extractors.

Just curious then, how does the heat come out? What I've seen on several of these, it's pretty much closed off. I've looked on several different ones and can't see a system that would work for heat extraction. Not arguing the fact, juSt wondering what I'm not seeing.

My 85 T/A had those vents and the ones on the sides. It wasn't just the GTA.

quote Originally posted by Thunderstruck GT: The car who's hood has the vents that you people are referring to is the Trans Am GTA and the vents were functional heat extractors.

funny 1985 t/a had them.. and there was no GTA in 85

quote Originally posted by E.Furgal: the 4 barrel cars had issues with heat soak,, the vents just let the hot air out, they also had a fan and tubing that blew on the carb.. This is also why the 82-84 cars with the v8 and turbo hood (scoop of to the drivers side, like the 79-81 turbo t/a's ) the scoop was open,, the later EFI Formula's used the same hood with turbo scoop but it was closed

Thats not correct. The rear facing hood, air induction cowl on the 82-84 Trans Ams was part of the Air Induction System. This was a closed intake system for the Carbed 305ci V8s. It attached to a special opening in the top of the air cleaner housing.

Now for the Formula 87-92 the hoods didn't have the opening with the vacuum actuated air induction system. It was open with a grill covering.

quote Originally posted by Inferno: Thats not correct. The rear facing hood, air induction cowl on the 82-84 Trans Ams was part of the Air Induction System. This was a closed intake system for the Carbed 305ci V8s. It attached to a special opening in the top of the air cleaner housing. Click to show

I have to concur as my 82 TA had this same system. It had an actuator that opened it for air intake when heavy on the throttle. I thought mine was TBI but I may be confusing that with my parents Camaro that is TBI.

quote Originally posted by SCCA FIERO: The red t-top posted above is my car. The vents are actually from a 1986 Pontiac Sunbird turbo.

They look better than the Trans Am ones.