Drivetrain CryO2 for non S
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3rd Gear
Joined: Mar 2003
Posts: 163
Likes: 0
From: Riverton,UT
I'm almost done with this and since I'm not looking to make money from it, I thought I would share my design. I'm in process of fabricating but my calcs say it should cool the intake air from an estimated 180 to around 40. The problem is the potential condensation created in the tube but I'm working on it.
So... If you are interested in trying this out yourself read on...
First: Move yur battery to the trunk. Not too hard to do with the "bucket" and wiring coutesy of your friendly Mini dealer
2: Look at a friends S intake (like the Alta or mini madness or whatever and have a machine shop build one just like it out of 3" aluminum pie. Doesn't need to look good since it will be covered.Have a polished aluminum 4" pipe created to the exact same bends. With a bit of work you can fit one inside the other.
3: Purchase 1/4" copper or aluminum tubing and create a coil around the 3" aluminum pipe. make sure the end closest to where the filter will live is parrallel with the direction of flow in the pipe.
4: Cut 1/4" tub 2" from where the silicone boot from the throttle body lives.
5: Slide the 3" tube out of the center of the coil carefully. and drill holes in the tube every3-4" along the tube using progressively larger diameter bits (start very small)
6: At the end cut near the silicone boot put a closed ferrul fiyying and tighten down.
7: Cut from Polished Aluminum circular end pices with a 4" diameter outer ring and a 3" diamter inner ring. Reposition the coil backon the 3" pipe wiggle it into the 4" pipe and weld the end peices on.make sure you put a pass through fitting through the hole you drill in the filter end. Fitt the coil to the pass through fiting and tighten up. remember to make sure the 4" pipe is 3" shorter on both ends.
8: It should look like a resonator that has 3" pipe and a pass through fitting on the filter side. On the end piece near the throttle body drill 2 1/8" holes to releive pressure and allow the CO2 to escape.
9: Here's the trick. Buy one of those tonado things they sold on TV. They will fit perfectly into the 3" pipe on the filter end. I put two in (one halfway down the pipe and spot welded it from the outside to keep it in place. I really think one would work)
10: Hook everything up and buy yourself a CryO2 system or some other cryogenic system and hook it to the pas through fitting. Go real fast.
Theory: Basically I created a insulated 3" pipe that can contain a cryogenic liquid and cooled gas for a period of time. As th egas flows from the filter side towards the throttle body, the progressively larger holes insure gas/liquid reaches all the way down to the throttle body. The 4" pipe keeps the chilly gas around the 3" pipe. the vortex thingy's provide turbulent flow which strips the laminar boundary off the the wall. This causes the walls of the 3" tube to act as a relatively efficient heat exchanger. Air temp cools and viola cool air. The vortex thingy's also act as a heat exchanger which is why I have two in mine.
Its almost ready to try out and I will post the pics as soon as its done. It actually looks nice albeit HUGE
So... If you are interested in trying this out yourself read on...
First: Move yur battery to the trunk. Not too hard to do with the "bucket" and wiring coutesy of your friendly Mini dealer
2: Look at a friends S intake (like the Alta or mini madness or whatever and have a machine shop build one just like it out of 3" aluminum pie. Doesn't need to look good since it will be covered.Have a polished aluminum 4" pipe created to the exact same bends. With a bit of work you can fit one inside the other.
3: Purchase 1/4" copper or aluminum tubing and create a coil around the 3" aluminum pipe. make sure the end closest to where the filter will live is parrallel with the direction of flow in the pipe.
4: Cut 1/4" tub 2" from where the silicone boot from the throttle body lives.
5: Slide the 3" tube out of the center of the coil carefully. and drill holes in the tube every3-4" along the tube using progressively larger diameter bits (start very small)
6: At the end cut near the silicone boot put a closed ferrul fiyying and tighten down.
7: Cut from Polished Aluminum circular end pices with a 4" diameter outer ring and a 3" diamter inner ring. Reposition the coil backon the 3" pipe wiggle it into the 4" pipe and weld the end peices on.make sure you put a pass through fitting through the hole you drill in the filter end. Fitt the coil to the pass through fiting and tighten up. remember to make sure the 4" pipe is 3" shorter on both ends.
8: It should look like a resonator that has 3" pipe and a pass through fitting on the filter side. On the end piece near the throttle body drill 2 1/8" holes to releive pressure and allow the CO2 to escape.
9: Here's the trick. Buy one of those tonado things they sold on TV. They will fit perfectly into the 3" pipe on the filter end. I put two in (one halfway down the pipe and spot welded it from the outside to keep it in place. I really think one would work)
10: Hook everything up and buy yourself a CryO2 system or some other cryogenic system and hook it to the pas through fitting. Go real fast.
Theory: Basically I created a insulated 3" pipe that can contain a cryogenic liquid and cooled gas for a period of time. As th egas flows from the filter side towards the throttle body, the progressively larger holes insure gas/liquid reaches all the way down to the throttle body. The 4" pipe keeps the chilly gas around the 3" pipe. the vortex thingy's provide turbulent flow which strips the laminar boundary off the the wall. This causes the walls of the 3" tube to act as a relatively efficient heat exchanger. Air temp cools and viola cool air. The vortex thingy's also act as a heat exchanger which is why I have two in mine.
Its almost ready to try out and I will post the pics as soon as its done. It actually looks nice albeit HUGE
2nd Gear
Joined: Nov 2002
Posts: 120
Likes: 0
From: tallahassee florida
sounds great....but um, can you really chill the exterior duct of the intake to a point where it will actually have a worthwhile effect on the performance?? I'm not so sure about that, but I could of course be very wrong, who knows. let us know
_________________
so ya...I now live in Norfolk, eh!
_________________
so ya...I now live in Norfolk, eh!
Banned
Joined: Apr 2002
Posts: 1,805
Likes: 0
From: Los Angeles, Ca
Cry02 to cool a pipe????
How many bottles of Cry02 are you planning to put in?
Sounds crazy.
You would be better off with a slow steady fog of cry02 flowing withing like this....
It seems a lot simpler and would seem to have the same effect...
without all the extra do-dads
How many bottles of Cry02 are you planning to put in?
Sounds crazy.
You would be better off with a slow steady fog of cry02 flowing withing like this....
It seems a lot simpler and would seem to have the same effect...
without all the extra do-dads
Banned
Joined: Apr 2002
Posts: 1,805
Likes: 0
From: Los Angeles, Ca
>>sounds great....but um, can you really chill the exterior duct of the intake to a point where it will actually have a worthwhile effect on the performance?? I'm not so sure about that, but I could of course be very wrong, who knows. let us know
>>
>>_________________
>>so ya...I now live in Norfolk, eh!
I think that would actually create a moisture problem.... hot air flowing through a chilled tube.
moisture would build up on the inside of the intake tube... I would imagine. Look at a soda can when you pull it outta the fridge on a hot summer day.... drip drip
>>
>>_________________
>>so ya...I now live in Norfolk, eh!
I think that would actually create a moisture problem.... hot air flowing through a chilled tube.
moisture would build up on the inside of the intake tube... I would imagine. Look at a soda can when you pull it outta the fridge on a hot summer day.... drip drip
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