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C6 Corvette ZR1 & Z06General info about GM’s Corvette Supercar, LS9 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track
Has anyone had a vent installed in the back underside of their hood? I understand I can put a louvered insert in, but I really do like the window. That being said, something to help vent heat out would be ideal and I don't think I would have to worry near as much about water getting in. On the rare occasion I catch rain.
Has anyone had a vent installed in the back underside of their hood? I understand I can put a louvered insert in, but I really do like the window. That being said, something to help vent heat out would be ideal and I don't think I would have to worry near as much about water getting in. On the rare occasion I catch rain.
I replaced my window hood a few years ago with the louver insert because the super charger is not attractive. I track the car & a lot of the heat is removed from the engine bay. I didn't log the coolant temp but my oil temp went down. When I was running at the track, my buddy's Z06 windshield had lots of bugs & mine was clear. You can actually see the heat escaping through the louver. My option (only) is that I would never go back to the oem window.
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Windshield is a high pressure area - at speed air will go INTO your engine bay instead of out. Bad idea. There is a reason it’s sealed.
The Callaway hood bulge is vented on the top & open in the rear & I haven’t experienced any issues at speed or otherwise. You can definitely see all the heat escaping.
I can go over the physics all day for you but you probably won’t believe me anyways lol. Try it yourself - tape some string tufts there and see what they do and at what speed it starts going the wrong way. They were called cowl INDUCTION hoods for a reason.
I can go over the physics all day for you but you probably won’t believe me anyways lol. Try it yourself - tape some string tufts there and see what they do and at what speed it starts going the wrong way. They were called cowl INDUCTION hoods for a reason.
Quite the smug response for simply pointing out that one of the most well-known names in modified Corvettes put an open hood bulge on their supercharged cars & that I, personally, have not experienced any issues driving my vehicle at high speeds.
Perhaps you shouldn’t assume what others know, don’t know, or their ability to understand information
Quite the smug response for simply pointing out that one of the most well-known names in modified Corvettes put an open hood bulge on their supercharged cars & that I, personally, have not experienced any issues driving my vehicle at high speeds.
Perhaps you shouldn’t assume what others know, don’t know, or their ability to understand information
You can see where the rubber seal/weatherstrip was removed. Cure all - no, but anything to let more heat out of engine bay IMO is a plus, also have a Halltech DRED hood that I had the vented insert installed in.
I can go over the physics all day for you but you probably won’t believe me anyways lol. Try it yourself - tape some string tufts there and see what they do and at what speed it starts going the wrong way. They were called cowl INDUCTION hoods for a reason.
Well, I've actually seen photos of Callaway testing at VIR with the pieces of nylon tape testing the vents on top of the carbon bulge. Ive never see a cowl induction hood with the reliefs cut in it that the Callaway carbon bulge has. They did their homework.
I can go over the physics all day for you but you probably won’t believe me anyways lol. Try it yourself - tape some string tufts there and see what they do and at what speed it starts going the wrong way. They were called cowl INDUCTION hoods for a reason.
I like physics and R&D, much better than putting vents in without testing.
The base of the windshield is a hi pressure area. With a cowl induction type hood the only opening is to the air cleaner and so the air goes into the air cleaner. Now if you consider the rest of the base of the hood or a non cowl induction hood and remove the seal between the hood and the base of the windshield or cowl the air could go either way . It all depends on how much pressure there is at the windshield base and the engine compartment. Back in the sixties windshields were more vertical and created more pressure so cowl induction worked great. Today windshields are more laid back and don't create as much pressure. But engine compartments today are more packed and may create higher underhood pressure. You see more louvered hoods today. You hafta test to see what your particular vehicle does. Do the string test.
11-14-2020, 01:47 PM
C6 Hood venting
