To Scoop-Or Not To Scoop?
#1
To Scoop-Or Not To Scoop?
I have been pondering the idea of putting a second gen scoop on a spare hood for my '83. Then it dawned on me, that would probably look like poo poo. So me and a good friend of mine got together on a liitle meeting of the minds and came up with something we thought would look cool on a first gen. I got in a little debate with a deer last fall, and he decided to make me do some body work on my car! So I have decided to take the old girl on a different path this upcoming year on a whole new list of upcoming mods. I thought I would throw some pics out and get some reviews on what everyone else thinks on what we came up with on the hood. Please be gentle on on the comments. Hope you like!
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#8
Ok, the (fiberglass) comment, I only know how to weld steel. I took a cut off wheel and cut the three side of the scoop and made three filler panels. Out of steel! I took 3/16 cold rolled Steel and made fake bodylines to the front of the hood. There is only a minimum of body filler to make it all smooth.
#10
Thanks ALOT! I did not know if anyone would believe that hood was off a wrecked car. I picked up a '79 back in the spring off a buddy for a 100 bucks and I can't buy a hood for that. I probably have about 150 in this hood right now and I don't thing that anyone has quite the same stuff out there. I likes to be different!
#11
buzzzzz!-ook!-buzzzzz!
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my 0.02: scoops are wasted effort if they:
-do not force air across an intercooler (sooburoo)
-do not force feed the air intake charge (muscle car, think F&F if you're challenged)
-do not duct a serious amount of air from the airdamn up and over the hood(Enzo)
-do not scavenge air out from under the hood to reduce UHT's (NASCAR superbird)
since RX-7's have very high UHT's, a reverse scoop would be IDEAL in lowering these and prolonging the life of all the UH components... a reverse scoop without a hole is just bird bath.
if you were to produce these, i would reccomend moving the scoop further aft to avoid clearence issues with the rad.. people dont like moving their rads much.
-do not force air across an intercooler (sooburoo)
-do not force feed the air intake charge (muscle car, think F&F if you're challenged)
-do not duct a serious amount of air from the airdamn up and over the hood(Enzo)
-do not scavenge air out from under the hood to reduce UHT's (NASCAR superbird)
since RX-7's have very high UHT's, a reverse scoop would be IDEAL in lowering these and prolonging the life of all the UH components... a reverse scoop without a hole is just bird bath.
if you were to produce these, i would reccomend moving the scoop further aft to avoid clearence issues with the rad.. people dont like moving their rads much.
Last edited by SparkienSuggah; 12-19-05 at 01:08 AM.
#12
The only issue I have with putting the scoop further back is, THAT is what everybody else is doing! In trying to be original, I think sacrificing moving the radiator down 1inch isn't that big of a deal. As far as the udh (under hood temps) some people don't want to take the time to put header wrap on thier headers. I have had friends of mine think that ceramic coating will prevent the heat soak around the engine, but it want do it alone. My temp gauge pretty much stays on 1/3 up from the bottom. I think I will cut the center out just because it does collect water. Thanks for the imput yall!
#13
FB+FC=F-ME
Looks great.
The TII scoop looks out of place on a first gen and it would serve no function unless you had a TII swap.And even then,itd be feeding a ****-poor intercooler youd probably be upgrading later on anyhow.
The reverse extraction scoop is much cleaner and invisible from profile,so it doesnt scream,"look at me,Im a ricer!"Not to mention it has multiple functional features.Not only to remove hot air that our engines are so famous for producing,but also they reduce the amount of under-car air that exits the engine bay.This helps with high speed stability and traction if you drive like a maniac or race.
I went all out with this concept after investigating and dissmising the TII scoop as "gay"...(no offense to anyone running a TII scoop,after all,its just opinion!)
My reverse extraction scoop is all metal and hand made to mach my large Howe dual pass radiator.It also helps with oilcooler and IC airflow by creating a low pressure zone at the back of the hottest portion of the radiator,effectively drawing air through the stack of heat exchangers my car has(total of 4)
Ive confirmed its effectiveness with highway speed testing while watching my air intake,oil and coolant temps before and after the airdam,lower radiator,header panel and hood mods.Each made a noticable difference,but none as large as when the hood vent was added.Each temperature dropped an average of 15 degrees after the hood vent was added(the largest drop was coolant obviously)
When it rains,after the coolant comes up to temp,the scoop will dump steam out over the hood and fog my windsheild at any speed over 15MPH.I constantly get remarks like,"hey,your car is overheating!".......numbskulls,heh,heh..
The TII scoop looks out of place on a first gen and it would serve no function unless you had a TII swap.And even then,itd be feeding a ****-poor intercooler youd probably be upgrading later on anyhow.
The reverse extraction scoop is much cleaner and invisible from profile,so it doesnt scream,"look at me,Im a ricer!"Not to mention it has multiple functional features.Not only to remove hot air that our engines are so famous for producing,but also they reduce the amount of under-car air that exits the engine bay.This helps with high speed stability and traction if you drive like a maniac or race.
I went all out with this concept after investigating and dissmising the TII scoop as "gay"...(no offense to anyone running a TII scoop,after all,its just opinion!)
My reverse extraction scoop is all metal and hand made to mach my large Howe dual pass radiator.It also helps with oilcooler and IC airflow by creating a low pressure zone at the back of the hottest portion of the radiator,effectively drawing air through the stack of heat exchangers my car has(total of 4)
Ive confirmed its effectiveness with highway speed testing while watching my air intake,oil and coolant temps before and after the airdam,lower radiator,header panel and hood mods.Each made a noticable difference,but none as large as when the hood vent was added.Each temperature dropped an average of 15 degrees after the hood vent was added(the largest drop was coolant obviously)
When it rains,after the coolant comes up to temp,the scoop will dump steam out over the hood and fog my windsheild at any speed over 15MPH.I constantly get remarks like,"hey,your car is overheating!".......numbskulls,heh,heh..
#16
BAD 83: Subtle is good unless it is so discrete no one notices & you go to a lot of trouble for little function or aesthetics. I like your minimal scoop but question the results. I'd go for something a bit more dramatic but not quite Steve's monster scoop. Just my taste.
#17
Terrified.
I'm all about functionality as well. I agree with snapshot that Steve's monster scoop is a bit more than what my taste is all about, but if it dropped everything an average of 15 degrees then its worth it. If I ever get around to getting a turbo II or whatever I decide to do with my car in the future chances are I will just go with a subtle hood scoop or go with a fmic and no hood scoop at all.
#18
I think I understand where you all are coming from. I origanaly just did this strictly for looks, but I am feeling ya on the functionality aspect of what this could provide. I will have to run this by my painter and see what kind of problems (if any) this might present when we go to paint it. He and I spent a lot of time trying to smooth everything out and I brought cutting the front out up and we had decided to leave it shooth inside. O well, I guess I will have to upset him when I tell him I have changed my mind. He should understand, we have been friends for a long time. I always do all the sheet metel work while the painter gets all the glory! I really can't complain becuase I always pay him with Corona's! LOL!!!!
#19
Originally Posted by bad 83
I think I understand where you all are coming from. I origanaly just did this strictly for looks, but I am feeling ya on the functionality aspect of what this could provide. I will have to run this by my painter and see what kind of problems (if any) this might present when we go to paint it. He and I spent a lot of time trying to smooth everything out and I brought cutting the front out up and we had decided to leave it shooth inside. O well, I guess I will have to upset him when I tell him I have changed my mind. He should understand, we have been friends for a long time. I always do all the sheet metel work while the painter gets all the glory! I really can't complain becuase I always pay him with Corona's! LOL!!!!
Sounds like you are set on this mod. Well you gotta do what you love. Just do it. You will be happy- and it will be tasteful. Hey, I'm an artist.
#20
Thunder from downunder
iTrader: (1)
IMO I would just remove material from the reverse side of the indent, two slots there would make the heated radiator air flow nicely out and should drop your underhood temps, it also wont open the engine bay up too much for the elements and the f...wits out there.
#22
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iv got 2 vents on mine
http://www.justrotors.com/images/mon...h_november.jpg
they look ok , and they do there job pretty well
http://www.justrotors.com/images/mon...h_november.jpg
they look ok , and they do there job pretty well
#25
FB+FC=F-ME
It looks monster in pictures,but in person,the scoop isnt too obtrusive.
Like I said,its invisible from profile and I cant even see it from the drivers seat.The ramp does extend pretty far down,but since everything is red and smooth,it flows well with the rest of the frontend.I dont drive crazy enough to actually confirm any increase in handling,but any reduction in undercar airflow should give some percetible increase.....and she does flow plenty of hot,radiator air over the windsheild.This design has been around for a while on racecars and I originally got the idea from these guys.....
http://www.daliracing.com/v666-5/cat...cfm?focus=1476
The radiator is a Howe dual pass,crossflow.....
http://www.howeracing.com/Radiators/...DoublePass.htm
The dual pass design allows for more exposure time, to give the coolant a better opportunity to shed heat.Instead of a pair of full width tanks at each end of the radiator,it has just a small tank where the hot water comes in.The hot water enters at the top right hand side,and makes a pass to the left,this is the part my scoop acts upon,as its the hottest portion of the radiator.Then the coolant goes down to the bottom half of the radiator and makes another pass back to the right.The inlet and outlet tanks on the right side are seperate to keep the coolant from just bypassing the core.
It works great and the hose fittings are still in the stock rotary positions, to the right side of the car.Howe makes many sizes in this style and can customize any radiator you want.They added a heater core feed line and low coolant sensor bung to mine,charged me 300 bucks and I had it at my door in less than 3 days.
Like I said,its invisible from profile and I cant even see it from the drivers seat.The ramp does extend pretty far down,but since everything is red and smooth,it flows well with the rest of the frontend.I dont drive crazy enough to actually confirm any increase in handling,but any reduction in undercar airflow should give some percetible increase.....and she does flow plenty of hot,radiator air over the windsheild.This design has been around for a while on racecars and I originally got the idea from these guys.....
http://www.daliracing.com/v666-5/cat...cfm?focus=1476
The radiator is a Howe dual pass,crossflow.....
http://www.howeracing.com/Radiators/...DoublePass.htm
The dual pass design allows for more exposure time, to give the coolant a better opportunity to shed heat.Instead of a pair of full width tanks at each end of the radiator,it has just a small tank where the hot water comes in.The hot water enters at the top right hand side,and makes a pass to the left,this is the part my scoop acts upon,as its the hottest portion of the radiator.Then the coolant goes down to the bottom half of the radiator and makes another pass back to the right.The inlet and outlet tanks on the right side are seperate to keep the coolant from just bypassing the core.
It works great and the hose fittings are still in the stock rotary positions, to the right side of the car.Howe makes many sizes in this style and can customize any radiator you want.They added a heater core feed line and low coolant sensor bung to mine,charged me 300 bucks and I had it at my door in less than 3 days.
Last edited by steve84GS TII; 12-21-05 at 09:26 PM.
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