Log in

View Full Version : New Hood Scoop on 2012 Hood?



Snakeskin347
02-13-2021, 06:03 PM
Has anybody ever cut the hood scoop off of an older MKIII hood and riveted a new one on? While working and aligning the front end on my recent purchase which was a 2013 build I noticed some cracking at the front of the scoop. Rather than fixing the glass I was thinking about cutting it out and riveting a new one on. This car is a 2013 MKIV and I was under the assumption that they came with the riveted style hood but for some reason this one is not? I'm 99% sure that this is an MKIV and that it came with this older style hood? Anyways, any input would be greatly appreciated. Thanks!

Jeff Kleiner
02-13-2021, 06:38 PM
That is a Mk4 and all Mk4’s came with a separate scoop. 2013 is about the point where they made the transition from a fiberglass scoop to ABS plastic. If it’s integral with the hood someone molded it in. Mixing an ABS scoop with a fiberglass hood pretty much guarantees an eventual failure...as does improperly molding glass to glass. Either way I’m afraid you’re looking at a repair and repaint unless you can find a loose scoop that covers a larger area.

Jeff

Snakeskin347
02-13-2021, 07:11 PM
That is a Mk4 and all Mk4’s came with a separate scoop. 2013 is about the point where they made the transition from a fiberglass scoop to ABS plastic. If it’s integral with the hood someone molded it in. Mixing an ABS scoop with a fiberglass hood pretty much guarantees an eventual failure...as does improperly molding glass to glass. Either way I’m afraid you’re looking at a repair and repaint unless you can find a loose scoop that covers a larger area.

Jeff

Thanks for the reply, I think you are right and I don't even think that I will attempt a repair. I'm sure if I go online that someone will hopefully sell an oversized hood scoop. Now that you say it I believe the scoop is plastic and very floppy and droopy. I just assumed that the kit came the way it was and this is what the guy before me built. Maybe its a blessing in disguise as I prefer the riveted look anyways so hopefully I will find one that fits.

Snakeskin347
02-14-2021, 07:15 AM
I went on the FFR website and they do offer the separate hood scoop for sale but unfortunately they don't list the dimensions. Can someone out there who has the riveted on scoop please send me the dimensions? I would need the ID and OD of the flanged lip to make sure that I could cut this one out correctly to eliminate body work to the hood.

Jeff Kleiner
02-14-2021, 09:58 AM
The outside of the mounting flange is 15" at the front tapering to 13" before it begins to curve and is a total of 22.5" front to back. Assuming that it was the FFR ABS scoop that was bonded and molded to your hood I suspect you'll find that if it is cut off and the failed areas removed the remaining hole in the hood will be too large for the flange of the new loose FFR scoop to cover. A few years ago I cut the molded scoop out of a Mk3 hood and used a slightly oversized one that was large enough to cover the hole without major bodywork. I can't say with absolute certainty but seem to recall that it came from from Shell Valley...check their site or give them a call and see what you come up with.

Good luck,
Jeff

Snakeskin347
02-14-2021, 10:25 AM
The outside of the mounting flange is 15" at the front tapering to 13" before it begins to curve and is a total of 22.5" front to back. Assuming that it was the FFR ABS scoop that was bonded and molded to your hood I suspect you'll find that if it is cut off and the failed areas removed the remaining hole in the hood will be too large for the flange of the new loose FFR scoop to cover. A few years ago I cut the molded scoop out of a Mk3 hood and used a slightly oversized one that was large enough to cover the hole without major bodywork. I can't say with absolute certainty but seem to recall that it came from from Shell Valley...check their site or give them a call and see what you come up with.

Good luck,
Jeff

Thanks Jeff, I actually did see that scoop this morning on the Shell Valley website but it is just a small picture that doesn't really show the whole scoop or isn't very detailed anyways. You wouldn't happen to have a picture of that scoop would you?

142649142650

RaserX
02-14-2021, 12:44 PM
Does anybody make an aluminum hood scoop that could be riveted/bolted to the hood avoiding the abs issue?

Jeff Kleiner
02-14-2021, 01:13 PM
...You wouldn't happen to have a picture of that scoop would you?

No, sorry.


Does anybody make an aluminum hood scoop that could be riveted/bolted to the hood avoiding the abs issue?

There is no issue with the ABS scoop when installed as intended and in fact I prefer them to the fiberglass ones that FFR provided with early Mk4s. The problem arises when someone bonds and molds one to the fiberglass hood due to the materials being incompatible.

Jeff

Snakeskin347
02-14-2021, 02:37 PM
No, sorry.



There is no issue with the ABS scoop when installed as intended and in fact I prefer them to the fiberglass ones that FFR provided with early Mk4s. The problem arises when someone bonds and molds one to the fiberglass hood due to the materials being incompatible.

Jeff

I'll be looking for an ABS scoop then, I think Shell Valley is my answer with the dimensions that they give. I'll be calling them Monday, thanks guys!

ggunter
02-14-2021, 03:12 PM
Jeff will epoxy sealer adhere well to the abs so tops coats will bond. I know some abs is hard to get paint to stick to. Or do you use a special primer on ABS.

RaserX
02-14-2021, 05:11 PM
I have the opposite issue, I have two MK1 hoods with integrated hood scoop. I want the riveted on look but am hesitant to cut off one of the molded in scoops. I have always thought an aluminum scoop would be the best bet. Now, I may go another route or may be best to leave it as is. Sorry for hijacking thread

Snakeskin347
02-15-2021, 08:53 AM
I have the opposite issue, I have two MK1 hoods with integrated hood scoop. I want the riveted on look but am hesitant to cut off one of the molded in scoops. I have always thought an aluminum scoop would be the best bet. Now, I may go another route or may be best to leave it as is. Sorry for hijacking thread

Cut yours off and then go for the riveted style, take lots of pictures along the way and let me know how it works out before I do mine! LOL! Just joking.

I did some measuring and Shell Valley for sure has one that will work for me. My only hesitation is that it is (31.5" X 18.5" X 3.5"). I'm a little worried about how a 3.5" high hood scoop will look? Hopefully I can find a picture of a Cobra with this exact scoop on it.

RaserX
02-15-2021, 12:28 PM
I may do that as I really want the two piece hood and scoop look with rivets. I guess I get two chances to mess it up.

Jeff Kleiner
02-15-2021, 01:25 PM
I may do that as I really want the two piece hood and scoop look with rivets. I guess I get two chances to mess it up.

Two ways to go about it; either use the oversized scoop that will cover the hole that's left in the hood when the integral one is cut off or make the hole smaller by building it in a couple of inches all around and then cutting it to the appropriate size for the FFR scoop. I've done it both ways and the oversized scoop is MUCH easier but far from correct or authentic looking.

Jeff

RaserX
02-15-2021, 02:12 PM
Jeff,
cutting off built in one would be easy enough. You still recommend the FFR ABS scoop over others available? Oversize vs orignial? Nothing is original, Just do not want it to look odd.

Jeff Kleiner
02-15-2021, 03:54 PM
How much work do you want to do? Either of the FFR scoops whether fiberglass or ABS will require that you close up the hole that will be left when the integral one is cut off. A larger aftermarket one will cover. As for the FFR scoops I prefer ABS when going with a separate, rivet on style because unlike their fiberglass one it is symmetrical, doesn’t require that the flange be cut and doesn’t need to have the underside finished. If it is going to be molded into the hood however the fiberglass scoop is the only way to go.

Jeff

AC Bill
02-15-2021, 05:05 PM
Aluminum scoop...

https://www.csxparts.com/p-398-427-aluminum-hood-scoop-standard.aspx

Other scoops.
https://www.**********accessories.com/c-87-trims-accessories.aspx

http://www.cobranda.com/accofihosc.html

http://cobranda.com/gthoscbonty1.html

Snakeskin347
02-15-2021, 06:17 PM
Wow, after doing some measuring and realizing how limited my options are I'm almost thinking that buying a glass scoop and and having a professional blend it into to my hood would be the best option, this is totally opposite of what i was thinking when I started this thread. Edge to edge my black stripes are 15.5" so I am very limited on what I can do without making a mess of my hood. I don't really care about "period correct" but I like the look of originality where an unexperienced eye wouldn't know the difference. I really appreciate everybody's input, thanks guys!

RaserX
02-15-2021, 07:46 PM
that aluminum one is sweet. thanks. Wait would
a MK1 hood with integrated scoop fit your car?

AC Bill
02-16-2021, 01:56 PM
Wow, after doing some measuring and realizing how limited my options are I'm almost thinking that buying a glass scoop and and having a professional blend it into to my hood would be the best option....

If you have given up on the idea of a riveted on scoop, you may as well just repair the crack on your existing one.

Jeff Kleiner
02-16-2021, 02:56 PM
... Wait would
a MK1 hood with integrated scoop fit your car?

No. Mk1,2 or 3 hoods do not fit a Mk4.

Jeff

johnnybgoode
02-16-2021, 03:19 PM
I went on the FFR website and they do offer the separate hood scoop for sale but unfortunately they don't list the dimensions. Can someone out there who has the riveted on scoop please send me the dimensions? I would need the ID and OD of the flanged lip to make sure that I could cut this one out correctly to eliminate body work to the hood.

I've got a bolt-on scoop on my MKII. It measures 15.5" at the front and 14" at the rear where it starts to curve and is 23" overall length. The hole is approx 13.5" by 12" by 22". The scoop came from FFR over 10 years ago now so not sure if they are making the same one. You could phone and ask them for the current scoops dimensions. Fiberglass is also very easy to work with so you could easily section/expand to fit if you decide to go that way. Feel free to PM me if you would like more info. Good Luck. Scott

142797

142798

Snakeskin347
02-16-2021, 06:10 PM
I've got a bolt-on scoop on my MKII. It measures 15.5" at the front and 14" at the rear where it starts to curve and is 23" overall length. The hole is approx 13.5" by 12" by 22". The scoop came from FFR over 10 years ago now so not sure if they are making the same one. You could phone and ask them for the current scoops dimensions. Fiberglass is also very easy to work with so you could easily section/expand to fit if you decide to go that way. Feel free to PM me if you would like more info. Good Luck. Scott

142797

142798

Thanks' Scott, you just gave me hope again! that is the exact size that I need! Someone in a previous post said that the FFR scoops were smaller but they obviously made several variations... With your new measurements I know that it would work perfectly and all that would need to be painted is the scoop. I'll call the guys there tomorrow.

142801

142802

AC Bill
02-20-2021, 04:27 PM
I see this oversized one being sold on e-bay.. 17" wide 24" long, and fiberglass. Might do the job..

https://www.ebay.com/itm/AC-Shelby-Cobra-Black-Hood-Scoop/264838894746?hash=item3da9a0d49a:g:dAwAAOSwT5tWOI7 m