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Old Sep 25, 2003 | 01:09 PM
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Air Induction Hood

Has anyone everseen an air induction hood for the Max?
I'd like to find one or does anyone know of someplace making a fiberglass hood for the Max?
I prefer taking my air in from on top of the hood rather than in front of my wheel.
Old Sep 25, 2003 | 02:09 PM
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i agree my brother 87 rx7 has a nice one on it for the top mounted intercooler. Too bad we cant get one made for the max.
Old Sep 25, 2003 | 02:13 PM
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be sure you slap one of these on there too
Old Sep 25, 2003 | 02:22 PM
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Just a tad bit overkill for my tastes. I'd actually try to mold in a NACA Duct. No profile and still ram air
Old Sep 25, 2003 | 03:57 PM
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da-max i think thats a bit overkill. the intake on the hood of an 87 rx7 is molded in quite well. its low profile and look really nice. however i havent seen one on a max and may look hideous. however taking air from the top vs. the bottom will kill everyones worries about rain and puddles.
Old Sep 25, 2003 | 03:57 PM
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Here you got...old school snorkle scoop.








I got this scoop for my chevelle years ago (15 or so) and never used it. I found it around Christmas time when I was digging the Christmas lights out. Stuck it on the car for a joke.
Old Sep 25, 2003 | 04:17 PM
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Originally Posted by awsm66
Here you got...old school snorkle scoop.








I got this scoop for my chevelle years ago (15 or so) and never used it. I found it around Christmas time when I was digging the Christmas lights out. Stuck it on the car for a joke.
Old Sep 25, 2003 | 04:26 PM
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Originally Posted by gowirelessnj
da-max i think thats a bit overkill.
go look up sarcasm in the dictionary
Old Sep 25, 2003 | 05:44 PM
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If I could stand the way the hood scoops look on the Maxima, I wouldn't be busting my tail trying to make a cold air box and ducting ram air from the front grill to it. Don't think I haven't been tempted; it would be so much easier.... I think I've looked at evey hood scoop on the internet and couldn't stand any of them on a Maxima - just ruins the style.
Old Sep 25, 2003 | 06:09 PM
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Shaker hood! ohhhhhhh
Old Sep 25, 2003 | 06:10 PM
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That's why I like NACA ducts. They do not portrude from the body but still improve air flow.

Quote from up22.com
"PR-7
Designed to be molded flush into any hood or body panel so that the scoop is indented into the surface. Originally these were called NACA ducts. Air will be drawn into the scoop but the scoop doesn't protrude out from the body panel to cause wind resistance. 1 inch flange on 3 sides. "
So anyone found a fiberglass hood for me mold this into?
Old Sep 25, 2003 | 10:08 PM
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Then you would have an "IROC" maxima...

At least do something a little less "80s musclecar."

Maybe a scoop from a WRX or something.

BTW -- I love shaker hoods! My uncle has a 70 Torino Cobra Jet w/ a shaker. Kicks A$$!!!
Old Sep 26, 2003 | 05:21 AM
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Originally Posted by awsm66
Here you got...old school snorkle scoop.

I got this scoop for my chevelle years ago (15 or so) and never used it. I found it around Christmas time when I was digging the Christmas lights out. Stuck it on the car for a joke.
Mike, you spend WAAAAAY too much time in the garage with the door closed. Get a little air, and you'll feel better, bro! (and I say that in the most sarcastic way I can - youknowhowWEroll)
Old Sep 26, 2003 | 05:27 AM
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Originally Posted by Red92MaxSE
Then you would have an "IROC" maxima...

At least do something a little less "80s musclecar."

Maybe a scoop from a WRX or something.

BTW -- I love shaker hoods! My uncle has a 70 Torino Cobra Jet w/ a shaker. Kicks A$$!!!
HEY , I like Camaros!
Besides the naca duct if properly designed does not change the aerodynamic properties of the car and does not affect the overall look of the hood the same way any sort of "scoop" would.
I am looking for functionality rather than form.
I like the stock look. Besides it'll make it easier if I ever decide to add a turbo
Old Sep 26, 2003 | 06:29 AM
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Originally Posted by internetautomar
HEY , I like Camaros!
Besides the naca duct if properly designed does not change the aerodynamic properties of the car and does not affect the overall look of the hood the same way any sort of "scoop" would.
I am looking for functionality rather than form.
I like the stock look. Besides it'll make it easier if I ever decide to add a turbo
Well, don't start thinkin' turbo 'til I get a chance to get up to Chicago and hang out with ya....

I don't wanna feel like a moron with my slow-@$$ VE!
Old Sep 26, 2003 | 06:37 AM
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ain't no such thing as a SLOW VE. Even on 3 cylinders it hauled out (once I spun it over 4K)
She feels much better now.
3 reman injectors
Lower control arm bushings
2 rear window regulators
Front Pads w/ Hardware

still 2 be done:
Exhaust.
Stereo
Fog lamps
Remote Start/ keyless entry
Turbo orSupercharger ( Way off for now)
Old Sep 26, 2003 | 11:57 AM
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Originally Posted by RMAX54
If I could stand the way the hood scoops look on the Maxima, I wouldn't be busting my tail trying to make a cold air box and ducting ram air from the front grill to it. Don't think I haven't been tempted; it would be so much easier.... I think I've looked at evey hood scoop on the internet and couldn't stand any of them on a Maxima - just ruins the style.
I already made an air tight ram air box for my VE. It was ghettofied, but it was for testing purposes to see if it worked.

My conclusion was, from 0-70, the motor felt slightly deprived of air. After 70mph, it started feeling peppier under very low rpm. The ONLY way it made my car faster was do do 80+mph on the highway with OD on. It was forcing more air than the motor wanted. So the initial throttle response at that low of an rpm was much better. But as soon as I went WOT at any speed, the motor sucked in the air it wanted and i still couldn't give it the air it needed.

The only way I see this ram air idea working on the VE is to have a HUGE hood scoop and several ducts all over the front of the car. Have you seen how big the ram air ports are on the new SS Silverado? They will have to be atleast that size in order for this ram air system not to hurt your performance.

So I yanked that ram air project out and I'm just going with my back up idea. Which is a regular WSP CAI with a custom made ram air inlet underneath the front bumper. All it will do is help direct more cold air on the filter behind the bumper.

I live in Las Vegas, so I'm not too concerned about water.

*edit* Oh yeah, I have pics of my ram air project. Involves a Tupperware container. The idea was taken from this website:

http://www.thumper300zx.com/modifica...hairintake.htm

This is my car:



Old Sep 26, 2003 | 12:17 PM
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As you said it is Ghettoized and like most things done Ghettoized they won't wotk as well as A properly designed one will.
Flexible Ducting kills airflow. it causes way too much turbulence under mild air speeds. and the tupperware container probably creates even more air buffeting to once again help slow down the incoming air charge which is the last thing you want to do.

"All of the above is just my opinion Feel free to disagree"
Old Sep 26, 2003 | 12:41 PM
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Originally Posted by internetautomar
As you said it is Ghettoized and like most things done Ghettoized they won't wotk as well as A properly designed one will.
Flexible Ducting kills airflow. it causes way too much turbulence under mild air speeds. and the tupperware container probably creates even more air buffeting to once again help slow down the incoming air charge which is the last thing you want to do.

"All of the above is just my opinion Feel free to disagree"
Oh no, all the things you said were perfectly accurate. I've done a LOT of research about custom Ram Air and other stuff. I have some good reading for you. Let me find it.

This first link is the best:

http://www.karlsnet.com/mopar/ramair.shtml

Here are some others partaining to intakes:

http://www.tcnj.edu/~sysant2/CAI.htm

http://www.teamdelsol.com/technical/...ke/default.asp

http://www.iroc-zpostforum.com/Tech/TechRamAir.htm
Old Sep 27, 2003 | 07:51 AM
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Originally Posted by Aaron92SE
The only way I see this ram air idea working on the VE is to have a HUGE hood scoop and several ducts all over the front of the car. Have you seen how big the ram air ports are on the new SS Silverado? They will have to be at least that size in order for this ram air system not to hurt your performance.
I'm not surprised at your performance hit from your air box. I already spotted the intake air starvation problem without even trying it. Air velocities going into the cone filter of my Hybrid short ram intake are already high enough to tear pieces of hood insulation off and suck them into the filter. No way that tupperware rig could even come close to supplying enough air to the cone filter. There needs to be a fairly large plenum around the cone filter. And that's also been the problem with other cold air boxes shown in this forum also - 'way 'way too small. I agree about the intake air size - It's going to have to be either large or multiple feeds or both. I note that the 300zx guy's box used two air feeds - and I bet he was still starved for air with a plenum that small.

Accordingly, what I'm looking at now is a fiberglass partition that will make the whole driver's side of the engine compartment outboard of the engine a 'cold air zone'. The easiest way to feed it would be a hood scoop, but anything large enought to feed the air would probably look like cr**p. It would have to be offset from the hood center, and little to the left of the driver. So I'm looking at the multiple air feed problem now, and might even employ one feed from underneath. One question is whether it will be worth it to relocate the battery to the trunk to make air flow better in the 'cold air zone'. Either way, it's going to be a PIA to get one that works. Nice thing about the partition idea, is that it will work for both VG and VE cars if I can work out the problems.

If I get there, this will be the 6th or 7th Ram Air system I've worked with. My first was back in about 1970 on a friend's car; a huge dual snorkel air cleaner on a 1967 GTO fed by dual plastic scoopes under the front bumper and huge 6" hoses. Worked great until we had some flood problems that same year. Got to help him dry it out after it stalled in deep water.
Old Sep 27, 2003 | 08:18 AM
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Originally Posted by internetautomar
Flexible Ducting kills airflow. it causes way too much turbulence under mild air speeds.
I Agree. Ya gotta get away from the ghetto HVAC stuff from the hardware stores for a workable Ram Air Setup. But there's far better flex hose alternatives out there. One is 3" ID flex hose made for industrial solids transfer - the best looking is FDA certified. Slick as glass on the ID. The other (but very expensive) is something called Spiral Flex - a 304SS flex tubing that claims to flow 20% better than mandrel bent tubing. Here's a link to the Spiral Flex:

Hyptertuned Air Intakes
Old Sep 27, 2003 | 09:18 AM
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Originally Posted by DA-MAX
go look up sarcasm in the dictionary
sarcasm = A form of wit that is marked by the use of sarcastic language and is intended to make its victim the butt of contempt or ridicule.
Old Sep 27, 2003 | 01:22 PM
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Originally Posted by RMAX54
I'm not surprised at your performance hit from your air box. I already spotted the intake air starvation problem without even trying it. Air velocities going into the cone filter of my Hybrid short ram intake are already high enough to tear pieces of hood insulation off and suck them into the filter. No way that tupperware rig could even come close to supplying enough air to the cone filter. There needs to be a fairly large plenum around the cone filter. And that's also been the problem with other cold air boxes shown in this forum also - 'way 'way too small. I agree about the intake air size - It's going to have to be either large or multiple feeds or both. I note that the 300zx guy's box used two air feeds - and I bet he was still starved for air with a plenum that small.

Accordingly, what I'm looking at now is a fiberglass partition that will make the whole driver's side of the engine compartment outboard of the engine a 'cold air zone'. The easiest way to feed it would be a hood scoop, but anything large enought to feed the air would probably look like cr**p. It would have to be offset from the hood center, and little to the left of the driver. So I'm looking at the multiple air feed problem now, and might even employ one feed from underneath. One question is whether it will be worth it to relocate the battery to the trunk to make air flow better in the 'cold air zone'. Either way, it's going to be a PIA to get one that works. Nice thing about the partition idea, is that it will work for both VG and VE cars if I can work out the problems.

If I get there, this will be the 6th or 7th Ram Air system I've worked with. My first was back in about 1970 on a friend's car; a huge dual snorkel air cleaner on a 1967 GTO fed by dual plastic scoopes under the front bumper and huge 6" hoses. Worked great until we had some flood problems that same year. Got to help him dry it out after it stalled in deep water.
So you know what it will take to get a ram air system working on ANY motor. It's does take a LOT of air. And probably, the higher the motor revs, the more air it needs.

Oh yeah, my track setup is removed headlight and put the cone filter in place. I went to Home Depot and got the 3" flexible aluminum duct that's really cheap and will fall part after being roughed up a while. It's not the best, but it's $5 and it lasts about 30 races or so.

I need something better for my next track visit and I'm not spending $50 plus shipping on this spiral flex tubing.

Can you tell me where I can get the 3" ID flexible hose made for solids transfer? That might be what I need.

Also, at AutoZone, the largest flexible exhaust tubing is 2.5". I wish they made 3". Thanks for the help.
Old Sep 28, 2003 | 01:58 PM
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Originally Posted by Aaron92SE
I need something better for my next track visit and I'm not spending $50 plus shipping on this spiral flex tubing. Can you tell me where I can get the 3" ID flexible hose made for solids transfer? That might be what I need.
$50 for 2 ft on that Spiral Flex is too rich for my blood also - Just wanted to show it, and the fact that all flextubing is not created equal - not by a long stretch. The only source I have at the moment on the solids transfer tubing is McMaster-Carr. They also have a 'EPDM 3" ID Chemical Acid Transfer Hose'. I can't point you to the particular web page due to the way their web site is structured. Go to http://www.mcmaster.com and search for "FDA Tubing". Note that 3"ID will be good to slip over 3" OD mandrel bends or MAF adapters.

The McMaster-Carr stuff is not the best and they are relatively expensive; there are others better, but are only sold through distributors that you have to call for pricing and availability. You'll get lots of hits if you do a Google search on -'Bulk transfer hose' or 'Solids transfer hose'. Goodyear, Gates, and Masterflex are among the manufacturer's that make hose like this.

I haven't attempted to run down the bulk transfer tubing any further at this point: I won't need it until after I've worked out problems with the 'cold air partition' and how to feed it. I'll get cold air induction from that without any tubing at all - it will breath cold air from the same place the stock intake tube did. 'Phase II' will be getting it plumbed to Ram Air, and only then will I need the hose. This stuff won't be as cheap as the HVAC stuff either; say $7-$8 per foot - still far better than $25 per foot for that stainless Spiral Flex.

If I get better specifics on the hose, I'll post them. But won't happen until if and/or when I actually need to get some.
Old Sep 28, 2003 | 03:04 PM
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Originally Posted by RMAX54
$50 for 2 ft on that Spiral Flex is too rich for my blood also - Just wanted to show it, and the fact that all flextubing is not created equal - not by a long stretch. The only source I have at the moment on the solids transfer tubing is McMaster-Carr. They also have a 'EPDM 3" ID Chemical Acid Transfer Hose'. I can't point you to the particular web page due to the way their web site is structured. Go to http://www.mcmaster.com and search for "FDA Tubing".......
I am searching right now. I'm sure I can find it. But it's not as easy as searching for fda tubing. Well, I KNOW that gates makes a 3" ID hose. That's what WSP uses for their CAI connectors. I need 2 feet of this hose and I think it should be better than my ram air track setup. Do you know where I need to search for this hose? I think it's heater hose? But this site wants over $15 per foot. OH yeah, here's a pic of my track ram air with the home depot 3" alum flex duct:

Old Sep 28, 2003 | 03:31 PM
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Originally Posted by Aaron92SE
I am searching right now. I'm sure I can find it. But it's not as easy as searching for fda tubing. Well, I KNOW that gates makes a 3" ID hose. That's what WSP uses for their CAI connectors.
I'm not talking about anything even remotely resembling radiator hose. The bulk transfer hoses are for industrial use in pneumatic conveyers - or for suction and discharge in industrial equipment. Many are made of urethane or polyethelene (not rubber), and have a different material yet for an slick abraisive resistant liner. That also why you can't buy most of them over the Internet - stuffs not intended for home/backyard use, but is bought primarily by major contractors for large industrial installations. I was looking at one particular abrasive resistant hose with a rating of 250 degr F, but can't find the link right now.

Here's one example of several Goodyear products from a distributor call SealFast. SealFast Goodyear Suction Hose . Sealfast has others from Goodyear here also.

Here's another distributor

JB Enterprises

There's lots of products out there to look at; and many will do for a ram air setup. I'm just not going to spend more research time at present until I'm sure I'm going to need it.
Old Sep 28, 2003 | 03:41 PM
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Thanks for the help.
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