using hood scoop for ram-air?
04-04-03, 11:36 AM
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Ram Air done properly can make a big difference from 60 on up. I am working on a set-up for my car right now. It is actually a big job if done correctly. Remember to put the intake in a high pressure zone. One inch above the hood is a MINIMUM. The best place would be in the front edge of the bumper, but this is a lot of work.
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04-04-03, 01:11 PM
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hood scoop...
The hood scoop doesn't pass enough air to make "RAM AIR" effective anyways...
The actual design of the hood scoop doesn't allow enough air through...by the time the air has reached the hood scoop after being "cut" into by the front end of the car, the majority of the air flow is already over top the hood scoop...
I remember someone had posted an aerodynamics chart of the FC on here at one point, it really showed how uneffective the hood scoop really is.
If it was 1" higher, then it would be worthwhile.
The actual design of the hood scoop doesn't allow enough air through...by the time the air has reached the hood scoop after being "cut" into by the front end of the car, the majority of the air flow is already over top the hood scoop...
I remember someone had posted an aerodynamics chart of the FC on here at one point, it really showed how uneffective the hood scoop really is.
If it was 1" higher, then it would be worthwhile.
04-04-03, 06:24 PM
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Originally posted by skyypilot
Ram Air done properly . . . is actually a big job if done correctly. The best place would be in the front edge of the bumper, but this is a lot of work.
Ram Air done properly . . . is actually a big job if done correctly. The best place would be in the front edge of the bumper, but this is a lot of work.
04-09-03, 10:45 AM
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A few more words about Ram Air. I made an excellent setup for a car I had long ago. To prove to you guys that it can have major effect, I will tell you that I installed a boost gage in my intake and at 60 mph I had 1 PSI. Don't laugh, even that much makes a difference. At 100 MPH, I had 3 PSI. DO I have your attention now? At 140 MPH. I had almost 5 PSI, right when the car needed it most. When I finish mine, I will post picks and boost numbers for you........
04-09-03, 10:52 AM
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A few more words about Ram Air. I made an excellent setup for a car I had long ago. To prove to you guys that it can have major effect, I will tell you that I installed a boost gage in my intake and at 60 mph I had 1 PSI. Don't laugh, even that much makes a difference. At 100 MPH, I had 3 PSI. DO I have your attention now? At 140 MPH. I had almost 4 PSI, right when the car needed it most. It is like having a FREE turbocharger. As I said before, it must be mounted in a high-pressure area. That dinky scoop on the TII hood is trapped in boundary layer air and I seriously doubt it does anything at all to boost performance and it has a small drag penalty. It is way to low to be effective. When I finish mine, I will post pics and 'boost' numbers for you........
04-09-03, 06:33 PM
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Oh hell yeah, I knew it would make a difference but I never thought it would exceed one psi. I'll have to get a boost guage on mine when it is done and put up some pics of my own. 
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