Need some opinions, for this.... |
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Need some opinions, for this.... |
toon1 |
Jun 30 2008, 08:20 PM
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#1
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
I am creating a mold for an air intake scoop that will mount on the B pilliar.
My intention is to keep things close as possible to the stock look. I also wanted something that I could remove if need be( that's why I decided not to go with fender scoops). With this preliminary setup( pictured), I am not sure if it will scoop enough air. it stands off about 2" from the pilliar. The other option is to make the outside somewhat round, similar to the top scoops of a Bugatti. I'm also open to all other ideas. Thank's, Keith Attached image(s) |
r_towle |
Jun 30 2008, 08:22 PM
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#2
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Try naca ducts in the rear of the rocker panel with a hose running up through the tin.
Rich |
SirAndy |
Jun 30 2008, 08:23 PM
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#3
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Resident German Group: Admin Posts: 41,625 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
how are you going to get the air to the engine? (IMG:style_emoticons/default/idea.gif)
you know that the sail panels are a structural part of your rollbar, right? (IMG:style_emoticons/default/shades.gif) Andy |
Rusty |
Jun 30 2008, 08:26 PM
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#4
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Wanted: Engine case GA003709 Group: Admin Posts: 7,941 Joined: 24-December 02 From: North Alabama Member No.: 6 Region Association: Galt's Gulch |
Hi Keith,
This idea has been tried before, with some success. Check out this link: http://members.rennlist.com/chuxter/TempTests.htm -Rusty (IMG:style_emoticons/default/smoke.gif) |
toon1 |
Jun 30 2008, 08:50 PM
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#5
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
Try naca ducts in the rear of the rocker panel with a hose running up through the tin. Rich how are you going to get the air to the engine? (IMG:style_emoticons/default/idea.gif) you know that the sail panels are a structural part of your rollbar, right? (IMG:style_emoticons/default/shades.gif) Andy Hi Keith, This idea has been tried before, with some success. Check out this link: http://members.rennlist.com/chuxter/TempTests.htm -Rusty (IMG:style_emoticons/default/smoke.gif) I have seen the NACA ducts on the rockers . I thought this may be more and cleaner air. I have also seen that article, that's where I got the idea (IMG:style_emoticons/default/biggrin.gif) . The scoops in the article seem to stick out quite a bit. I wanted something a bit more inconspicuous. Andy, My original idea was to cut the pilliar and form a duct with sheet metal and pass the air through the pilliar into the engine bay. Taking Your advice with others, I decided against it. This will be a FG duct that will be added onto the outside and routed into the holes on either side of the rain tray. |
Dr. Roger |
Jul 1 2008, 01:43 AM
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#6
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
finally found a pic similar to what we were talking about earlier....
and links http://www.garagegt.com/shop/scripts/prodL...?idCategory=586 and http://bomexaero.com/zencart/index.php?mai...products_id=541 (IMG:http://image.automotive.com/f/images/9605651/turp_0406_01_z%20toyota_mr2_targa%20front_view.jpg) (IMG:http://bomexaero.com/zencart/images/uad1823.jpg) |
tdgray |
Jul 1 2008, 10:35 AM
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#7
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Thank God Nemo is not here to see this Group: Members Posts: 9,705 Joined: 5-August 03 From: Akron, OH Member No.: 984 Region Association: None |
My .02.... don't do it... looks like (IMG:style_emoticons/default/stromberg.gif)
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toon1 |
Jul 1 2008, 12:51 PM
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#8
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
What does? Scoops in general or the layout I have? |
URY914 |
Jul 1 2008, 01:02 PM
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#9
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,466 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
What is the intent here?
-To add cooling to the engine? The scoops won't do a thing to help that. -To look like a MR2 ricer? Done. Sorry, but I don't think much of the idea. |
toon1 |
Jul 1 2008, 01:11 PM
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#10
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
What is the intent here? -To add cooling to the engine? The scoops won't do a thing to help that. -To look like a MR2 ricer? Done. Sorry, but I don't think much of the idea. To look as much as a ricer as possible! I will eventually have gigantic graphics on the side and a muffler the size of a garbage can! I love it! (IMG:style_emoticons/default/biggrin.gif) I kidd of course. The real intention is to get air into the engine bay. I have only seen one of these done. I am not sure if it will work or not. The person who did it( in the link above) said that it helped with the oil temps. he also had it plumbed to the air cleaner. My thought is, if it only gets 25% more air forced into the engine bay, that's 25% more than before. Couldn't hurt Is there any data showing that this won't help? |
ericread |
Jul 1 2008, 01:16 PM
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#11
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
I'm not really sure if I like the looks or not. My real question is how much air you expect to move into the engine compartment? And I guess, why? I follow Jake Raby's threads pretty close, and his experience seems to demonstrate that a properly running 914 really shouldn't have a cooling problem. Are you trying to correct some cooling problem, or is this more of a project you thought would be cool?
If it's a project for fun, then it's nobody's damn business how it looks (but then again, you did ask (IMG:style_emoticons/default/idea.gif) . That's your decision. But if it is to correct a cooling problem, I would be very interested in learning more about your perceived problems. Eric Read |
toon1 |
Jul 1 2008, 01:45 PM
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#12
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
I'm not really sure if I like the looks or not. My real question is how much air you expect to move into the engine compartment? And I guess, why? I follow Jake Raby's threads pretty close, and his experience seems to demonstrate that a properly running 914 really shouldn't have a cooling problem. Are you trying to correct some cooling problem, or is this more of a project you thought would be cool? If it's a project for fun, then it's nobody's damn business how it looks (but then again, you did ask (IMG:style_emoticons/default/idea.gif) . That's your decision. But if it is to correct a cooling problem, I would be very interested in learning more about your perceived problems. Eric Read I don't have any cooling related issues. I thought it would be a neat project to see if it helps to stablize the temps under load. I do see the CHT's rise on occasion under certain conditions. I thought this might help. Yes I did ask, so I opened myself up to critisizm. Fire away! Unless I hear solid evidence that it doesn't help, I will make them dispite what people think. If they don't help, they will be easy to remove, nothing lost nothing gained. I posted this incase there where other people with the same idea but haven't done it yet. |
Dr. Roger |
Jul 1 2008, 03:14 PM
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#13
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
Another thought. Instead of bring the entire sail panel out, maybe making the duct convex kinda' like .... a Porsche Bedouin 996 Turbo (2003)
http://www.netcarshow.com/rinspeed/2003-po...ouin_996_turbo/ |
ericread |
Jul 1 2008, 03:21 PM
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#14
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The Viper Blue 914 Group: Members Posts: 2,177 Joined: 7-December 07 From: Irvine, CA (The OC) Member No.: 8,432 Region Association: Southern California |
I don't have any cooling related issues. I thought it would be a neat project to see if it helps to stablize the temps under load. I do see the CHT's rise on occasion under certain conditions. I thought this might help. Yes I did ask, so I opened myself up to critisizm. Fire away! Unless I hear solid evidence that it doesn't help, I will make them dispite what people think. If they don't help, they will be easy to remove, nothing lost nothing gained. I posted this incase there where other people with the same idea but haven't done it yet. Cool! I'm interested in what you find out. Obviously, air will only be directed to the engine at speed. With the tin in place, I wonder how you will direct the air stream to be efficient. Without the tin, I believe you will have a cooling problem at any speed. The again. if you just direct the air stream to the engine compartment, then I don't see it being as a help. Inject the air into the tin on both sides of the engine? What are your thoughts? Eric |
carr914 |
Jul 1 2008, 03:28 PM
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#15
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Racer from Birth Group: Members Posts: 118,490 Joined: 2-February 04 From: Tampa,FL Member No.: 1,623 Region Association: South East States |
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tdgray |
Jul 1 2008, 03:44 PM
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#16
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Thank God Nemo is not here to see this Group: Members Posts: 9,705 Joined: 5-August 03 From: Akron, OH Member No.: 984 Region Association: None |
Looks wise ... hate it.
Functionality wise... I doubt that you will see any measureable difference in piping air that way. I'm no expert but I just don't see how it would. |
toon1 |
Jul 1 2008, 04:41 PM
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#17
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Senior Member Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 |
Another thought. Instead of bring the entire sail panel out, maybe making the duct convex kinda' like .... a Porsche Bedouin 996 Turbo (2003) http://www.netcarshow.com/rinspeed/2003-po...ouin_996_turbo/ (IMG:http://img2.netcarshow.com/Rinspeed-Porsche_Bedouin_996_Turbo_2003_800x600_wallpaper_1b.jpg) Looks wise ... hate it. Functionality wise... I doubt that you will see any measureable difference in piping air that way. I'm no expert but I just don't see how it would. I thought about Boxster fender scoops. But if i didn't like them they would be hard to remove and cover up. With these, If I don't like them I will take them off. Right now the engine has to pull air into the bay. It also has to fight for that same air with what the engie intake needs. The area behind the window is a low pressure area, there is nothing to force air in. the engine bay temps stay in the 140* range. If air could be forced into the bay by the ducts it might be possible the lower the bay temps. or at the least supply the engine with a little more air than it normally sees. I have seen race cars with ducts to the engine bay and Boxsters use them. It must have some validity. I would probably only see a difference at higher speeds but that's what I am looking for. I like the way the copper colored car has the ducts done. I thought of that also but didn't want to cut throught the sail panel. I am going to Tape some flexable ducts to the sail panels tonight for my ride home to see if it helps. I will have 2 points of data. the IAT on the MS system and a CHT gauge. we'll see what happens. is there anyone who knows what CFM the engine cooling fan draws at, say, 3000rpm? |
Dr. Roger |
Jul 1 2008, 04:43 PM
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#18
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
but I've got to admit, with that big vacuum just behind the cockpit, it makes sense to route air back there. seems a row of diffusers along the top and a couple of vents would make a big difference in aerodynamics. putting air where there is normally a vacuum.
but that vacuum, combined with the air flaps underneath, produces cooling air coming up from below and out the top. let us know the results. (IMG:style_emoticons/default/beerchug.gif) |
Zardozz |
Jul 1 2008, 05:43 PM
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#19
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Member Group: Members Posts: 107 Joined: 31-March 08 From: Orange County, CA Member No.: 8,874 Region Association: None |
I've been kicking around an idea like this for some time. With my draw-through turbo set up there's a lot of heat generated on the top of the engine bay because of how the pipes are run. I wasn't worried about it before because of having to remove the decklid, poor planning on my part when I put the thing together. So there's lots of outside air to be drawn in.
I should have my car back soon with a much lower profile set up but still on top of the engine. I will be installing a pop-off style of deck lid but the heat issues will still be there. I was thinking of some kind of scoop plumbed directly into the carb to draw in cooler outside air. I'm not sure if this will do anything but I'm interested in reading about what you discover in your trials. |
SirAndy |
Jul 1 2008, 06:13 PM
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#20
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Resident German Group: Admin Posts: 41,625 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
with that big vacuum just behind the cockpit, that vacuum, combined with the air flaps underneath, produces cooling air coming up from below and out the top. is that so? (IMG:style_emoticons/default/idea.gif) got any proof for that pudding of yours? (IMG:style_emoticons/default/confused24.gif) Andy |
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