Ventilation ideas???
10-09-2007, 08:08 AM
#62
Rennlist Member
Thread Starter
You reckon a couple of these little naca's would do all that?
10-09-2007, 02:40 PM
#66
Rennlist Member
Crawford Composites, here in NC, makes bodies and carbon fiber components for the Rolex DP series. When we ran thier chassis, the louvers we used over the front "fenders" for downforce etc. looks just like what you are looking for. Google Crawford Composites. Should be able to get a phone number or maybe some pics on the web site of all the things they fabricate.
Or just click here.... http://www.crawfordcomposites.com/
Or just click here.... http://www.crawfordcomposites.com/
10-09-2007, 04:40 PM
#67
Nordschleife Master
Hmm it's easy to forget that you don't want to have inlets with the same size as the FULL face of the radiator (may it be an IC, water radiator or oil cooler).
The inlet area should be around 50% of the frontal area of an intercooler. Remember that half the area for an ic is used for the channels to transport the air inside the intercooler and will block the cooling flow through the core. So for maximum flow through the core you should ONLY let in the same amount of air that will actually flow through the core.
Bigger isn't always better.
The inlet area should be around 50% of the frontal area of an intercooler. Remember that half the area for an ic is used for the channels to transport the air inside the intercooler and will block the cooling flow through the core. So for maximum flow through the core you should ONLY let in the same amount of air that will actually flow through the core.
Bigger isn't always better.
10-09-2007, 05:24 PM
#68
Rennlist Member
Thread Starter
If this is the case just where do you allocate the openings? What do you think of Corleone's front piece then?
10-09-2007, 05:30 PM
#69
Rennlist Member
Thread Starter
Crawford Composites, here in NC, makes bodies and carbon fiber components for the Rolex DP series. When we ran thier chassis, the louvers we used over the front "fenders" for downforce etc. looks just like what you are looking for. Google Crawford Composites. Should be able to get a phone number or maybe some pics on the web site of all the things they fabricate.
Or just click here.... http://www.crawfordcomposites.com/
Or just click here.... http://www.crawfordcomposites.com/
10-09-2007, 05:32 PM
#70
Rennlist Member
Thread Starter
It would seem that the general consensus is for no intakes on the hood? Even the 968rs had a couple of the NACA's...
10-09-2007, 06:25 PM
#71
Burning Brakes
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Don't know much about much but if you get more air in than you can get out won't the car tend to lift anyway? Or does the under body tray help stop that?
And if you remove too much of the front areodynamics (big hole in front) won't that also increase drag?
I like the idea of louvering the hood in the correct places to help evacuate all that air you pushed in through the front.... especially since the batwing and underbody tray will block some of the exiting air (at least in appearance to me)....
Perhaps fender exits might be usefull too?? I am going to look at all those pictures of those "trick" 951's and see what they did... I did see lots of metal work to "direct" air where they wanted it in the front....
https://rennlist.com/forums/showthre...ight=trick+951
check post #9 Hood louvers
Cramming all that air in there is great for cooling but I think your on the right track if there is no place for it to exit easily it will just sit there...
And if you remove too much of the front areodynamics (big hole in front) won't that also increase drag?
I like the idea of louvering the hood in the correct places to help evacuate all that air you pushed in through the front.... especially since the batwing and underbody tray will block some of the exiting air (at least in appearance to me)....
Perhaps fender exits might be usefull too?? I am going to look at all those pictures of those "trick" 951's and see what they did... I did see lots of metal work to "direct" air where they wanted it in the front....
https://rennlist.com/forums/showthre...ight=trick+951
check post #9 Hood louvers
Cramming all that air in there is great for cooling but I think your on the right track if there is no place for it to exit easily it will just sit there...
10-09-2007, 07:54 PM
#72
Drifting
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hey nice one duke and if you have a good expanding duct the air cools as it expands and slows to fill the space and drops in pressure. just check out all the NASCARs and V8 supercars
10-10-2007, 12:34 AM
#73
Race Car
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Opening up the duct for the radiator and IC (if the IC is in front of the radiator) is great only if you have the V setup or with the coolers slanted forwards to avoid air stall.
Most important thing to remember is that you want to have an expanding plenum, and if you can't get that, at least don't face a radiator perpindicular to the air flow as you'll lose flow. So if you can't move the radiator like that, you're better off not venting the nose panel or the center of the bumper. Just DUCT DUCT DUCT!
I know the below are two different bumpers, but the setup is basically the same but with different bodywork. They vented the center panel for airflow, but also ramped the IC forwards. Sure they have two radiators with air from the fog lights and turn signals, but at the same time...they were pushing 700bhp. So if you reduce the power and stack the IC/Rad you're looking at a similar situation. Hope this helps.
Most important thing to remember is that you want to have an expanding plenum, and if you can't get that, at least don't face a radiator perpindicular to the air flow as you'll lose flow. So if you can't move the radiator like that, you're better off not venting the nose panel or the center of the bumper. Just DUCT DUCT DUCT!
I know the below are two different bumpers, but the setup is basically the same but with different bodywork. They vented the center panel for airflow, but also ramped the IC forwards. Sure they have two radiators with air from the fog lights and turn signals, but at the same time...they were pushing 700bhp. So if you reduce the power and stack the IC/Rad you're looking at a similar situation. Hope this helps.
10-10-2007, 02:18 AM
#74
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Ok! heres a better design.
Open the inlet on bumper to radiator and create ducts that direct air up towards the intercooler without cutting the nose panel. Block off the turn signals and foglight buckets. Then use the hood to make the extracter for exit from intercooler and top of radiator. with louvers tward the rear of hood.
Open the inlet on bumper to radiator and create ducts that direct air up towards the intercooler without cutting the nose panel. Block off the turn signals and foglight buckets. Then use the hood to make the extracter for exit from intercooler and top of radiator. with louvers tward the rear of hood.