Hey locals here is my project... F(d wanna)B
04-03-06, 01:19 AM
#26
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Originally Posted by rotarypower101
I would think it would require a very precise vac gauge to see any change in pressure.
It just seems to me you need to get the air into the channel and get a nice velocity over a surface that will not dump into a sharp transition.
Just a wild guess but I would say the air would dump over the front edge of the ducting in the hood and slam into the air trying to escape rather than create a effective vacuum at speed.
It just seems to me you need to get the air into the channel and get a nice velocity over a surface that will not dump into a sharp transition.
Just a wild guess but I would say the air would dump over the front edge of the ducting in the hood and slam into the air trying to escape rather than create a effective vacuum at speed.
Take your hands and place your left one flexed 90 degess at the knuckes. Now place the second perpendicular to the left hand. Take a large breath and blow air over the left hand. Now roll the left hand forward and backward. As you rotate the left hand forward and backward you will notice the more of an angle you get the less air will hit your right hand. You can also feel the air does not drop as you rotate the hand.
With that fin it should eliminate that dump.
04-03-06, 01:23 AM
#27
I know I know chop skills are better than you have ever seen 
But maybe more like this with the extra material bonded for the lower part of the ducting, and like I said the parent material for the surface.
But maybe more like this with the extra material bonded for the lower part of the ducting, and like I said the parent material for the surface.
Last edited by rotarypower101; 04-03-06 at 01:26 AM.
04-03-06, 01:25 AM
#28
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Originally Posted by rotarypower101
Nothing against setzep I think he has a great head on his shoulders, but I always read that and it doesn’t make any sense at all!
Why would you take a IC and put it at the bottom, when it gets hot and while sitting it could have a chance to let heat radiate up to the radiator there is nothing to stop it.
And I hate it when people say the radiator will do this (I think this is peoples major argument with V mount as it is mentioned so many times)….it has a fan, all air is pulled through the core and out he bottom of the car! Very little if any heat is transferred to the IC while parked and the fans are on. Come to my place I will show you personally if you don’t believe me!
I have inspected this randomly on my car many times and have never noticed it. If I ever got off my lazy azz I would by a infrared temp gun and debunk those statements. (they have a great one on ebay for 300 that is a 50:1 and does like 2000+F IIRC)
Why would you take a IC and put it at the bottom, when it gets hot and while sitting it could have a chance to let heat radiate up to the radiator there is nothing to stop it.
And I hate it when people say the radiator will do this (I think this is peoples major argument with V mount as it is mentioned so many times)….it has a fan, all air is pulled through the core and out he bottom of the car! Very little if any heat is transferred to the IC while parked and the fans are on. Come to my place I will show you personally if you don’t believe me!
I have inspected this randomly on my car many times and have never noticed it. If I ever got off my lazy azz I would by a infrared temp gun and debunk those statements. (they have a great one on ebay for 300 that is a 50:1 and does like 2000+F IIRC)
I wam primarily concerned with heat soak though. I am hoping that with the ducting a little bit of this will be reduced. I plan on taking temp measurements at a few different places.
1. turbo outlet
2. IC inlet
3. IC outlet
4. TB inlet.
5. Ambient Air temperatures
I am curious to see what this setup is capable. The car is not a DD so all testing will be on sunny hot days and in the hottest conditions.
Time and testing will tell
04-03-06, 01:29 AM
#29
I have read that ducting is a favorable option, but from what Chuck at RE says, it really is not necessary and provided little if any benefit while at speed iirc. (FD specific)
To me it makes obvious sense that ducting is favorable, but for me it was not an option.
To me it makes obvious sense that ducting is favorable, but for me it was not an option.
04-03-06, 01:31 AM
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Originally Posted by rotarypower101
I know I know chop skills are better than you have ever seen
But maybe more like this
But maybe more like this
Here is why. As the Air exits the IC I need to make sure that the vent drops directly over the IC. With the setup like that I will have to carry the hood down to mate up. I can always do some testing with my setup like that as well. Might have to...
04-03-06, 01:33 AM
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Originally Posted by rotarypower101
I have read that ducting is a favorable option, but from what Chuck at RE says, it really is not necessary and provided little if any benefit while at speed iirc. (FD specific)
To me it makes obvious sense that ducting is favorable, but for me it was not an option.
To me it makes obvious sense that ducting is favorable, but for me it was not an option.
04-03-06, 01:36 AM
#32
Originally Posted by z-beater
I agree that efficiency is a major issue. Especially when you are dealing with a IC that is as large as mine.
I wam primarily concerned with heat soak though. I am hoping that with the ducting a little bit of this will be reduced. I plan on taking temp measurements at a few different places.
1. turbo outlet
2. IC inlet
3. IC outlet
4. TB inlet.
5. Ambient Air temperatures
I am curious to see what this setup is capable. The car is not a DD so all testing will be on sunny hot days and in the hottest conditions.
Time and testing will tell
I wam primarily concerned with heat soak though. I am hoping that with the ducting a little bit of this will be reduced. I plan on taking temp measurements at a few different places.
1. turbo outlet
2. IC inlet
3. IC outlet
4. TB inlet.
5. Ambient Air temperatures
I am curious to see what this setup is capable. The car is not a DD so all testing will be on sunny hot days and in the hottest conditions.
Time and testing will tell
I mean I would like to know what it is, and that it is all working according to my ideas and designs, but it all seems to work well as a system so I am happy for the moment. I have checked the critical issues I was concerned about, and they all checked out.
Maybe I will someday find the enthusiasm to get it done, but I would probably need a kick in the azz and another RX7 nerd like myself to really nerd it up and find out log and record the findings.
04-03-06, 01:41 AM
#33
Originally Posted by z-beater
Yeah, I forgot that you were not vented... I will do some testing of my own and let you know what I find out. I have a hard time thinking that running all that air over the engine and not exiting out the hood would not be as efficient.
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