Project: 'Vent my Hood!'
#77
The Shadetree Project
iTrader: (40)
yes, yes and no. The venturi effect relies on the fact that the fast moving air is lower pressure then the, for example, fuel in the flat bowl. It's the fast moving low pressure aire that draws the fuel out of the higher pressure float bowl. And correction those aren't stock mirrors, but also Anniversary racing mirrors.
#79
The Shadetree Project
iTrader: (40)
The faster moving air is lower pressure than the pressure in the can.
After the choke the air is moving faster through the tube and therefore lower pressure. You can see the pressure differences working against the incompressible fluid in the tube below.
As air speeds up the pressure drops like on a wing.
After the choke the air is moving faster through the tube and therefore lower pressure. You can see the pressure differences working against the incompressible fluid in the tube below.
As air speeds up the pressure drops like on a wing.
#81
Registered shy guy
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make a metal frame ie square out of flat bar stock 3/16 thick 1.25 wide. stitch weld it to the under side of you hood then cut out the center this will keep the hood from warping.
#82
Rotary Freak
iTrader: (1)
Been a Long Time . . .
Can't believe it's been almost 2 years since this thread was last commented on! I was waiting for DS to do his hood, but I gave up and did it without benefiting from his experiment
What I wanted was vents in the center of the hood, but couldn't figure out a good way to do it that didn't involve a ton of welding (I don't weld very well). So I decided to go fiberglass. I got a hood from Fibremaz and some louvers from Tiger Racing. I married the two, and achieved what I wanted. I put some SS screen behind the large center vent, and I think it'll flow a good amount of air.
My primary goal was to move more air through the radiator to cool my turbo engine during track days. I haven't had an overheating problem yet, but I want to take every precaution because motors are expensive.
The nice thing is that the Fibremaz hood has all the original hardware, so this thing latches just like the OEM hood. I removed the rubber seal at the rear of the hood, and now it doesn't flutter at all.
It's in primer right now. Should I paint it Black or Red?
What I wanted was vents in the center of the hood, but couldn't figure out a good way to do it that didn't involve a ton of welding (I don't weld very well). So I decided to go fiberglass. I got a hood from Fibremaz and some louvers from Tiger Racing. I married the two, and achieved what I wanted. I put some SS screen behind the large center vent, and I think it'll flow a good amount of air.
My primary goal was to move more air through the radiator to cool my turbo engine during track days. I haven't had an overheating problem yet, but I want to take every precaution because motors are expensive.
The nice thing is that the Fibremaz hood has all the original hardware, so this thing latches just like the OEM hood. I removed the rubber seal at the rear of the hood, and now it doesn't flutter at all.
It's in primer right now. Should I paint it Black or Red?
#83
Wrkn Toyota, Rootn Wankel
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Yeah, well... the project went on hold when my car got wrecked, but yeah the hood is still on my new frame in its half finished, rusted glory.
I like how yours came out! I lack the fiberglass skill to make it like you did so I have to use my recently learned TiG welding skills, that is when my car is running again. Sorry to leave you hanging... was sure I posted a comment that this project got put on hold because of my old RX7 getting wrecked.
I like how yours came out! I lack the fiberglass skill to make it like you did so I have to use my recently learned TiG welding skills, that is when my car is running again. Sorry to leave you hanging... was sure I posted a comment that this project got put on hold because of my old RX7 getting wrecked.
#85
Rotary Freak
iTrader: (1)
Yeah, well... the project went on hold when my car got wrecked, but yeah the hood is still on my new frame in its half finished, rusted glory.
I like how yours came out! I lack the fiberglass skill to make it like you did so I have to use my recently learned TiG welding skills, that is when my car is running again. Sorry to leave you hanging... was sure I posted a comment that this project got put on hold because of my old RX7 getting wrecked.
I like how yours came out! I lack the fiberglass skill to make it like you did so I have to use my recently learned TiG welding skills, that is when my car is running again. Sorry to leave you hanging... was sure I posted a comment that this project got put on hold because of my old RX7 getting wrecked.
As for the fiberglass skill -- I'm no wizard -- I just have a lot of patience.
#87
Wrkn Toyota, Rootn Wankel
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Here is the progress on rebuilding her, its the main reason this project and my sleepy eye project went on hold. https://www.rx7club.com/build-threads-293/rising-ashes-pics-warned-812400/
Hey where you live, maybe you can make me one of them hoods!
#88
Rotary Freak
iTrader: (1)
Is the thread I posted when I wrecked her, https://www.rx7club.com/showthread.ph...light=its+dead.
Here is the progress on rebuilding her, its the main reason this project and my sleepy eye project went on hold. https://www.rx7club.com/showthread.php?t=812400
Hey where you live, maybe you can make me one of them hoods!
Here is the progress on rebuilding her, its the main reason this project and my sleepy eye project went on hold. https://www.rx7club.com/showthread.php?t=812400
Hey where you live, maybe you can make me one of them hoods!
I live in MI, so I'm 2000 miles away. If you're interested in a fiberglass hood, contact Fibremaz. His stuff is top notch. The shipping from Australia is expensive, but his prices are fairly low. If you decide to go that route and want to modify it, I'll walk you though it step-by-step.
Good luck.
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