Show off your hood vents, For your 914's with radiators |
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Show off your hood vents, For your 914's with radiators |
Corkus |
Oct 28 2010, 11:21 PM
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#1
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Newbie Group: Members Posts: 22 Joined: 14-June 10 From: N. Calif & S. AZ Member No.: 11,834 Region Association: None |
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Andyrew |
Oct 29 2010, 12:13 AM
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#2
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
(IMG:http://www.914world.com/bbs2/uploads/post-2-1095696092.jpg)
(IMG:http://www.914world.com/bbs2/uploads/post-2-1095695993.jpg) Old pic. From experience I dont think that little vent is going to be enough. You need 2x your inlet size on your outlet. |
Andyrew |
Oct 29 2010, 12:29 AM
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#3
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California |
FYI, Im changing my hood to stock and cutting the wheel wells. Its just not smart for a DD to have an exposed radiator/ exposed trunk.
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shoguneagle |
Oct 29 2010, 03:10 AM
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#4
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shoguneagle Group: Members Posts: 1,180 Joined: 3-January 03 From: CA, OR, AZ (CAZOR); New Mexico Member No.: 84 Region Association: Northern California |
I have not completed my air/oil cooler inlet/outlet yet but I am going to use a 996 air diffuser inlet to the cooler. Currently building outlet box twice the size of the inlet which I will either duct up through the hood, or out the wheel area. Although it is not a radiator coolant type, the principles are still the same. Roughly 1:2 (inlet to outlet)
Sorry I do not have any pictures yet but what I hope to see on this thread are different types of hood outlets available. Andyrew, I am surprised to see you still using the old hood outlet. Great to see that you are still involved and hopefully going to school. Sorry to hijack the thread. Steve Hurt |
jmmotorsports |
Oct 29 2010, 07:16 AM
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#5
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Member Group: Members Posts: 308 Joined: 15-August 06 From: Kelso,Wa. Member No.: 6,658 Region Association: Pacific Northwest |
I built these for my V8 this summer.
Jerry |
ripper911 |
Oct 29 2010, 07:41 AM
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#6
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corde pulsum tangite Group: Members Posts: 2,920 Joined: 25-April 10 From: Powder Springs, GA Member No.: 11,654 Region Association: South East States |
Radiator on a 914? (IMG:style_emoticons/default/WTF.gif) (IMG:style_emoticons/default/stirthepot.gif)
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d914 |
Oct 29 2010, 07:47 AM
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#7
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Advanced Member Group: Members Posts: 2,337 Joined: 12-July 03 From: Atlanta, ga Member No.: 904 Region Association: South East States |
still in process
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JRust |
Oct 29 2010, 07:48 AM
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#8
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914 Guru Group: Members Posts: 6,310 Joined: 10-January 03 From: Corvallis Oregon Member No.: 129 Region Association: Pacific Northwest |
I built these for my V8 this summer. Jerry That is nicely done Jerry! Are you goung to have a shroud forcing the air up through the opening? I like it (IMG:style_emoticons/default/drooley.gif) |
pcar916 |
Oct 29 2010, 08:01 AM
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#9
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None |
Under construction |
pcar916 |
Oct 29 2010, 08:06 AM
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#10
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None |
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andys |
Oct 29 2010, 10:01 AM
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#11
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None |
I don't have any recent photos. Radiator is ducted to this vent, and there's a foam gasket that seals the duct to the underside of the hood.
Andys Attached thumbnail(s) |
Rleog |
Oct 29 2010, 04:03 PM
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#12
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Senior Member Group: Members Posts: 609 Joined: 12-October 03 From: Middleton, MA Member No.: 1,239 Region Association: North East States |
Beautifully done, Pcar916!
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pcar916 |
Oct 29 2010, 08:37 PM
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#13
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Is that a Lola? Group: Members Posts: 1,523 Joined: 2-June 05 From: Little Rock, AR Member No.: 4,188 Region Association: None |
Beautifully done, Pcar916! Thanks! It was an adventure since I'm not a sheet metal guy. But my first attempt with the same cooler vented under the car and weakly-ventilated (even with two big fans) was not enough. The 993 motor doesn't have an on-board cooler behind cylinder number 6, so external is all there is unless you dump the second filter console and put back a cooler in that location. There are more elegant sheet-metal craftsmen out there but this has worked for 10 years (with a small additional cooler in the high pressure circuit during the summer months) so I'm happy with it... zero-maintenance. There are great examples in this thread. Hopefully they'll give enough ideas to build something functional. Hood exit rules: Functional 1st - The closer to the front of the car the better. It's a low pressure zone. Pressure gets higher farther back on the hood peaking at the bottom of the windshield, which is why cars have a vent there that forces air into the interior. - The cooler intake must be sealed. Intake air WILL escape if not forced to go through the cooler fins. - Don't make you exit the same shape as mine. I included those little tabs because of the 917 cooler-exit I modeled it after (my all-time favorite Porsche race car). But they're always in the way when I have to use a gas jug and are all bent up because of it. Simple is gooder. - I should've used -16AN rather than -12AN. The cooler IS -16. I suspect with -16 I wouldn't have had to add another auxilliary cooler. Class rules: Check 'em. The SCCA regards hood exits as an aero-improvement. If the car didn't come with one it's usually illegal in road racing. I don't think it matters in AX. It's fun to build stuff. (IMG:style_emoticons/default/welder.gif) (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/smash.gif) (IMG:style_emoticons/default/beerchug.gif) |
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