Cryo Systems Compared
#1
Ok, sorry guys i've been gone for a WHILE running around the country,
but I am MOST happy to return to the world with some stuff to offer.
Working on seting up a group buy for a company called Cryofuzion.
1st of all. there are 2 main companies that sell the "cryo" products.
the first is the one which has been brought up called Cryo2 or DEI
SITE THAT SELLS DEI CRYO2 STUFF
AND CRYOFUZION CRYOFUZION HOMEPAGE
I was first introduced to both these systems this summer at the
Carlisle, PA show. I talked to both companies about their products and
here is a summary of each of their products, and my own personal
engineering input. This isn't a sales pitch, this is my opinion and my
summary of whats out there.
DEI Cryo2 and Cryofuzion both have mutliple product
solutions to "chill" either the air and/or fuel portions of our
engine. Both companies "cryo" products use CO2 to remove heat.
DEI Product Summary: The Egg: is a spherical "egg" which is inserted
in the intake ducting near the Throttlebody. it is used for chilling
the intake air charge, they are getting ~35 degree intake temperature
drops.
The I/C Sprayer: Similar to a Nitrous Express Intercooler sprayer, it
is a coil with vent holes that is directly mounted to the front of the
I/C to help in heat removal. Not sure as to what the actual numbers
are for temp drops. Much less the detrament to spraying CO2 into the
engine bay (evacuating most of the much needed oxygen in the engine
bay, including near the airbox). See the actual Dyno proven affects
here: I/C SPRAY-BAR DYNO RESULTS
The summary is when using a "Spray Bar" you loose roughly ~5-7hp (from
waht I can see on the dyno graph) just from the introduction of CO2
into the engine bay.
Spraying Nitrous into over the I/C will allow un-metered nitrous into
your engine, giving you uncontrolled and unpredictable results of
leaning out your engine. Das bad man.
The Fuel Block: Pretty simple method of chilling the fuel. It has 2
sets of holes drilled lengthwise (forming channels) through the entire
aluminum block, one channel is for fuel, the other is for CO2. Pretty
simple, run CO2 thru it, and heat is removed from the fuel. No sure as
to what the acutual numbers are for fuel temp drops, and if it
actually affects HP/Torque in a measureable way.
Cryofuzion
Ok, now these stuff is way cool, and way safer than Nitrous on a
motor, and CHEAPER!!!
What an "Interfreezer" looks like:
Interfreezer: This is similar in principle to the beloved Aquamist
systems, lower the temperature of the intake charge. They just go at
it in a different manner. Aquamist systems are getting ~30 degrees F
intake temperature drops from injecting IPA mixed with H2O.
Cryofuzion
is using a CO2 2-chamber liquid to air heat exchanger, and getting
between 100 <-> 150 degrees F intake temperature drop.
They offer 3", 4", 6", 8", 10" (internal pipe diameter equivalent of the honeycomb) interfreezers.
So flow is not an issue. (I will be getting actual flow-bench CFM #'s mid week)
Picture of a VERY VERY VERY cold intake:
Ok, so point 1, significanly lower intake temperatures. Mind you, the
CO2 is kept COMPLETELY isolated from the intake air, it never mixes
with the air/fuel charge.
What a "Flow Enducer" Looks like:
Flow Enducer: Now we all are trying to improve 2 basic systems on our
cars:
1) suck in more air 2) get rid of more exhuast quicker
So, they user their aerodynamic-brains to create this guy. [Technical
blurb] Taking a cross-section of a standard wing-profile you will find
that the point of lowest pressure is the trailing edge (pointy end).
They took this knowledge and exploited it. Since we have ~800psi of
CO2 gas pressure running through the interfreezer sucking out heat,
there is still all of the leftover gas that has to be disposed of.
Instead of just venting it to the atmosphere they did something cool
with it, and used it in conjunction with their Flow-Enducer. By
venting the CO2 gas out the trailing edge of the Flow-Enducer it
creates a large low-pressure area, essentially a vacuum. It is welded
in your exhuast pipe, towards the end about 12-18' from the exhuast
tip.
So, the nuts and bolts of it. It sucks your exhuast gas out.
Cool huh? How about that for exhuast flow!!!! When its on, its taking
backpessure and making it non-existant.
I thought so. When I saw it at carlisle this summer it totally
captivated me and I was quite impressed.
Bottom Line: What does it get me? Well, all their numbers are from
Dyno-proven results, not estimates. With naturally aspirated motors
they are gettin ~7%-9% horsepower and torque gains. On a forced
induction motor they are achieving ~12%-20% horsepower and torque
gains. Note these are at the wheel numbers, not crank power gains.
So on a motor that is running 200hp that is a gain of 30hp to 230hp
(assuming a 15% gain). And the other really cool thing is, the warmer and
higher the humidity is, the better this system works.
This is a "shot-basis" system like Nitrous, except that you can run it
through any throttle range and have it triggered by throttle position
or my thumb switch. But an average shot to "freeze" your intake cooler
is T<10 seconds, and then however long you have it on for your "run".
With an average shot length of 10 seconds, and an expected tank usage
life of ~2mins, that is around 12 runs. Now remember, that is with a
10lb bottle, and they sell 15lb, and 20lb (which is what I will be
getting).
The other advantage of CO2 over Nitrous is cost, $4.25/lb by me, vs
<$1/lb for CO2. So, that is a bit more cost effective. CO2 can be
filled at any shop that refills paintball, I like pizza, tanks, dive
shops, beverage stores, etc.
I am in the process of setting up a group buy with Cryofuzion, but I
wanted to see how many people here are interested. They are going to
be selling complete kits which include everything needed to install
it: CO2 Bottle, solenoids, valves, braided stainless steel lines,
interfreezer, 1-cheetah jet, or an option for a Flow-Enducer.
Remember, CO2 bottles can be ordered in any size, 10lb(std.) 15lb, or
20lb. For longer lasting runs.
I am sorry for this being SOOO long, but I like presenting all the
details that I can. If you want any other information, please let me
know, and I'll get it for you. Hopefully you guys will find this as
cool as I did!!!
Priceing right now looks like $450-$500 per kit for a group of 10-15
people.
Enjoy.
Erik
but I am MOST happy to return to the world with some stuff to offer.
Working on seting up a group buy for a company called Cryofuzion.
1st of all. there are 2 main companies that sell the "cryo" products.
the first is the one which has been brought up called Cryo2 or DEI
SITE THAT SELLS DEI CRYO2 STUFF
AND CRYOFUZION CRYOFUZION HOMEPAGE
I was first introduced to both these systems this summer at the
Carlisle, PA show. I talked to both companies about their products and
here is a summary of each of their products, and my own personal
engineering input. This isn't a sales pitch, this is my opinion and my
summary of whats out there.
DEI Cryo2 and Cryofuzion both have mutliple product
solutions to "chill" either the air and/or fuel portions of our
engine. Both companies "cryo" products use CO2 to remove heat.
DEI Product Summary: The Egg: is a spherical "egg" which is inserted
in the intake ducting near the Throttlebody. it is used for chilling
the intake air charge, they are getting ~35 degree intake temperature
drops.
The I/C Sprayer: Similar to a Nitrous Express Intercooler sprayer, it
is a coil with vent holes that is directly mounted to the front of the
I/C to help in heat removal. Not sure as to what the actual numbers
are for temp drops. Much less the detrament to spraying CO2 into the
engine bay (evacuating most of the much needed oxygen in the engine
bay, including near the airbox). See the actual Dyno proven affects
here: I/C SPRAY-BAR DYNO RESULTS
The summary is when using a "Spray Bar" you loose roughly ~5-7hp (from
waht I can see on the dyno graph) just from the introduction of CO2
into the engine bay.
Spraying Nitrous into over the I/C will allow un-metered nitrous into
your engine, giving you uncontrolled and unpredictable results of
leaning out your engine. Das bad man.
The Fuel Block: Pretty simple method of chilling the fuel. It has 2
sets of holes drilled lengthwise (forming channels) through the entire
aluminum block, one channel is for fuel, the other is for CO2. Pretty
simple, run CO2 thru it, and heat is removed from the fuel. No sure as
to what the acutual numbers are for fuel temp drops, and if it
actually affects HP/Torque in a measureable way.
Cryofuzion
Ok, now these stuff is way cool, and way safer than Nitrous on a
motor, and CHEAPER!!!
What an "Interfreezer" looks like:
Interfreezer: This is similar in principle to the beloved Aquamist
systems, lower the temperature of the intake charge. They just go at
it in a different manner. Aquamist systems are getting ~30 degrees F
intake temperature drops from injecting IPA mixed with H2O.
Cryofuzion
is using a CO2 2-chamber liquid to air heat exchanger, and getting
between 100 <-> 150 degrees F intake temperature drop.
They offer 3", 4", 6", 8", 10" (internal pipe diameter equivalent of the honeycomb) interfreezers.
So flow is not an issue. (I will be getting actual flow-bench CFM #'s mid week)
Picture of a VERY VERY VERY cold intake:
Ok, so point 1, significanly lower intake temperatures. Mind you, the
CO2 is kept COMPLETELY isolated from the intake air, it never mixes
with the air/fuel charge.
What a "Flow Enducer" Looks like:
Flow Enducer: Now we all are trying to improve 2 basic systems on our
cars:
1) suck in more air 2) get rid of more exhuast quicker
So, they user their aerodynamic-brains to create this guy. [Technical
blurb] Taking a cross-section of a standard wing-profile you will find
that the point of lowest pressure is the trailing edge (pointy end).
They took this knowledge and exploited it. Since we have ~800psi of
CO2 gas pressure running through the interfreezer sucking out heat,
there is still all of the leftover gas that has to be disposed of.
Instead of just venting it to the atmosphere they did something cool
with it, and used it in conjunction with their Flow-Enducer. By
venting the CO2 gas out the trailing edge of the Flow-Enducer it
creates a large low-pressure area, essentially a vacuum. It is welded
in your exhuast pipe, towards the end about 12-18' from the exhuast
tip.
So, the nuts and bolts of it. It sucks your exhuast gas out.
Cool huh? How about that for exhuast flow!!!! When its on, its taking
backpessure and making it non-existant.
I thought so. When I saw it at carlisle this summer it totally
captivated me and I was quite impressed.
Bottom Line: What does it get me? Well, all their numbers are from
Dyno-proven results, not estimates. With naturally aspirated motors
they are gettin ~7%-9% horsepower and torque gains. On a forced
induction motor they are achieving ~12%-20% horsepower and torque
gains. Note these are at the wheel numbers, not crank power gains.
So on a motor that is running 200hp that is a gain of 30hp to 230hp
(assuming a 15% gain). And the other really cool thing is, the warmer and
higher the humidity is, the better this system works.
This is a "shot-basis" system like Nitrous, except that you can run it
through any throttle range and have it triggered by throttle position
or my thumb switch. But an average shot to "freeze" your intake cooler
is T<10 seconds, and then however long you have it on for your "run".
With an average shot length of 10 seconds, and an expected tank usage
life of ~2mins, that is around 12 runs. Now remember, that is with a
10lb bottle, and they sell 15lb, and 20lb (which is what I will be
getting).
The other advantage of CO2 over Nitrous is cost, $4.25/lb by me, vs
<$1/lb for CO2. So, that is a bit more cost effective. CO2 can be
filled at any shop that refills paintball, I like pizza, tanks, dive
shops, beverage stores, etc.
I am in the process of setting up a group buy with Cryofuzion, but I
wanted to see how many people here are interested. They are going to
be selling complete kits which include everything needed to install
it: CO2 Bottle, solenoids, valves, braided stainless steel lines,
interfreezer, 1-cheetah jet, or an option for a Flow-Enducer.
Remember, CO2 bottles can be ordered in any size, 10lb(std.) 15lb, or
20lb. For longer lasting runs.
I am sorry for this being SOOO long, but I like presenting all the
details that I can. If you want any other information, please let me
know, and I'll get it for you. Hopefully you guys will find this as
cool as I did!!!
Priceing right now looks like $450-$500 per kit for a group of 10-15
people.
Enjoy.
Erik
#3
As I promised, here are the measured flow rates. These are not theoretical, they are right off the flow-bench:
(Remember, this is ONLY for the 3.5" version, there are 4", 6", 8", and 10" freezers.)
At 15 psi. above atmospheric pressure, the maximum flow rates are as follows...
3.5" street interfreezer
5.5" core (2 port) - 861 cfm
7.2" core (3 port) - 844 cfm
9.0" core (4 port) - 826 cfm
So, that will dispell ANY fear that these things are even remotely going to be a restrictive part.
Just for you to get a rough idea of flow comarisions, a 15G turbo flows ~400cfm, so an interfreezer is roughly double the flow rate that our turbo.
Happy now?
(Remember, this is ONLY for the 3.5" version, there are 4", 6", 8", and 10" freezers.)
At 15 psi. above atmospheric pressure, the maximum flow rates are as follows...
3.5" street interfreezer
5.5" core (2 port) - 861 cfm
7.2" core (3 port) - 844 cfm
9.0" core (4 port) - 826 cfm
So, that will dispell ANY fear that these things are even remotely going to be a restrictive part.
Just for you to get a rough idea of flow comarisions, a 15G turbo flows ~400cfm, so an interfreezer is roughly double the flow rate that our turbo.
Happy now?
#7
Don't kid yourself w/ these so-called performance items. If these items were so great, you would see it in major forms of motorsport, offered by the OEMs, and used on the space shuttle.
Regarding the DEI Cryo 2 product, you stick that "egg" like object in your intake. That alone will cause some restriction. Assuming this product REALLY does get the air super cold,....you end up freezing the air, causing ice to gather at the "egg" and thus eventually blocking the intake.
Also, regarding the colder temps. Take your standard aftermarket intake pipe (like Injen). I take a relatively piece of metal and bend it into a v-shape. I weld the piece of metal inside the pipe, so that the incoming air gets split by my "v-shaped" piece of metal. Now, take a temperature probe and measure the air before and after the "V-shape" piece of metal. What will happen? Wow...a temperature drop! Why? Simple physics. The incoming air will run along the surface of the piece of metal,...thus cooling it.
Regarding the Cryofuzion, the example from their website shows an NA motor. Okay, fair enough.
The Stage 3 area of the diagram. It runs their "Fuel Interfreezer". If you want to keep your fuel cooler, run a heat exchanger similar to an oil cooler, except you have fuel flowing through it. Also, keep in mind that any professional racing organization (and track officials) probably will not allow you to use this product on the track. If you modify your fuel lines to run into this "Fuel Interfreezer", you might as well just use a fuel cooler.
In the Stage 2 setion, you see the hot gases from the pistons move to the exhaust area. Well, why do you want to place those cooling devices IN the exhaust? This ONLY creates backpressure in your exhaust.
Do you want to know why that device that gets placed in the intake tract is roughly 6 - 12 inches long? Because the more surface area, the more cooling effect you will have. Same concept as brakes.
Don't be fooled into spending your hard earned cash into this junk.
You'll be happier spending it on some gas, a tuneup, and a day at the track.
Regarding the DEI Cryo 2 product, you stick that "egg" like object in your intake. That alone will cause some restriction. Assuming this product REALLY does get the air super cold,....you end up freezing the air, causing ice to gather at the "egg" and thus eventually blocking the intake.
Also, regarding the colder temps. Take your standard aftermarket intake pipe (like Injen). I take a relatively piece of metal and bend it into a v-shape. I weld the piece of metal inside the pipe, so that the incoming air gets split by my "v-shaped" piece of metal. Now, take a temperature probe and measure the air before and after the "V-shape" piece of metal. What will happen? Wow...a temperature drop! Why? Simple physics. The incoming air will run along the surface of the piece of metal,...thus cooling it.
Regarding the Cryofuzion, the example from their website shows an NA motor. Okay, fair enough.
The Stage 3 area of the diagram. It runs their "Fuel Interfreezer". If you want to keep your fuel cooler, run a heat exchanger similar to an oil cooler, except you have fuel flowing through it. Also, keep in mind that any professional racing organization (and track officials) probably will not allow you to use this product on the track. If you modify your fuel lines to run into this "Fuel Interfreezer", you might as well just use a fuel cooler.
In the Stage 2 setion, you see the hot gases from the pistons move to the exhaust area. Well, why do you want to place those cooling devices IN the exhaust? This ONLY creates backpressure in your exhaust.
Do you want to know why that device that gets placed in the intake tract is roughly 6 - 12 inches long? Because the more surface area, the more cooling effect you will have. Same concept as brakes.
Don't be fooled into spending your hard earned cash into this junk.
You'll be happier spending it on some gas, a tuneup, and a day at the track.
#8
I also forgot.
What happens when you run out of CO2? Are there any quick and convenient refill stations nearby? And how much is it for an expected full tank of CO2 each time? So that means that when you run out, you can't cool the fuel or the intake tract.
And w/ the non-working devices both in the intake and the exhaust (causing a restriction and increased backpressure), you're only making things WORSE when you don't have a supply of CO2.
Take a simple physics and chemistry course and you'll understand. Hell, if you're in high school, ask your teachers.
What happens when you run out of CO2? Are there any quick and convenient refill stations nearby? And how much is it for an expected full tank of CO2 each time? So that means that when you run out, you can't cool the fuel or the intake tract.
And w/ the non-working devices both in the intake and the exhaust (causing a restriction and increased backpressure), you're only making things WORSE when you don't have a supply of CO2.
Take a simple physics and chemistry course and you'll understand. Hell, if you're in high school, ask your teachers.
#9
This is going to be fun.
so, we wait until we are TOLD to buy something or when a perticular
product "cool" to buy? Sorry, I think on my own and don't buy into
magazine-hype. The products that are hot in magazines are cold air
intakes and nitrous. Cold air works, but its nothing great, it just
improves the restrictive OEM airbox, and nitrous is just distructive
to engines unless done properly, and properly = expensively, so
properly is usually the not-chosen method.
I am looking for a performance enhancement other than nitrous and to
work in addition to normal bolt-on performance upgrades i.e. chip,
intake, exhuast, fuel, and ignition.
I agree. I don't perticularly like the "egg". It is very large, and
the surface area is relatively small. They are only getting ~30 degree
intake tempertature drops, which is the same as using aquamist and
methanol injection.
Personally, I don't care about the "egg", I am not supporting Cryo2
products, Cryofuzion I do.
Correct and Incorrect. Yes, you do take the moisture in the ambient
air and freeze it and it will collect as a thin layer on the tubes,
but it reaches a "steady-state" of freezing and thawing. So, the
moisture in the intake air charge is dried as the moisture freezes to
the sidewalls, but then it melts from the air still being above
freezing, but it melts in droplet form... so, its acting like a
miniature version of aquamist injection (just a lot less water). But
there is never anything more than a ~0.025" worth of ice that forms,
so its quite insignificant. Remember the flow rates of their most
RETRICTIVE interfreezer is 826CFM, does your intake path flow anything
near that? I know mine doesn't. I am running a 2.3L Volvo, which at
the MOST will flow 435CFM, so I'm fine.
The only way for air
to change temperature is for one of two ways. For uncontrolled
expansion of a pressurized gas, or for heat to be removed by some
mechanical means of heat transfer (heat exchanger).
Ok, IF by using your "magical V" you happen to be compressing
the air (and adding heat) and then after the V allowing it to expand.
The temperature of the gas was raised becuase work was required to
compress the gas and then as it expands the temperature drops, but
you're net change in temperature is >0 b/c it is not a perfect
adiabadic cycle (no heat flows into or out of the system, deltaQ = 0).
So, unless you just created something new that breaks some laws of
physics, maybe YOU should make your "magical V" intake get in the
magazines and sell it, instead of shooting from the hip.
Some are N/A, some are turbo
engines, and some are superchaged engines
No idea,
but I dont run track, i run street. But that is a very good point to
bring up. Although I see no reason why it would be banned from track
use, since you aren't adding anything to the fuel. But that is out of
my realm, ask someone who knows.
There is no cooling device that is placed in the
exhuast system. There is a standard wing profile (one that does not
develop lift) shaped device that is welded at the end of your exhaust
system to create conditions for better exhaust flow. Once again, back
to my explaination earlier. At the trailing edge of a standard wing
profile at subsonic flow rates is the region of lowest pressure, and
when a gas is discharged at a pressure of ~800 psi (At a room
temperature of 80 F, the vapor pressure is ~ 880 psia, so its actually
a bit higher in the exhuast stream) it will create an enhanced effect
of low pressure. Result? Lowering your backpressure significantly if
not approaching a point of vacuum if you're engine exhaust flow is
small enough. Either way, it is helping to increase turbo spool up in
addition to helping the motor expell its exhuast gases by drawing them
out from the low pressure region created.
Exactly. That is how you can cool the intake temperature.
That is you're opinion, and are quite entitled to have
it. I'm just offering this to the others who dont happen to think as
you do.
What happens when
you run out of gas?
I don't know, do you have any sporting goods, beverage
centers, scuba shops, welding shops or industrial gas supply houses? I
know those are all very scarce and hard to find, so you're probably
right, why even consider it.
How about nitrous? Now that is an inconvenient gas to try and refill.
Those tanks last even less ~3-4 shots/tank. Cryo ~15-20 chill and
shots/tank. Also, nitrous is $4/lb to refil vs. ~$15/tank for CO2.
Like I stated before, their WORST flowing interfreezer flows 826CFM
(4port 3.5" x 9.0" core) and goes higher from there.
How about 4 years of Mechanical Engineering?
I'm sorry, I guess I wasnt paying attention in class.
If these items were so great, you would see it in major forms
of motorsport, offered by the OEMs, and used on the space shuttle.
of motorsport, offered by the OEMs, and used on the space shuttle.
so, we wait until we are TOLD to buy something or when a perticular
product "cool" to buy? Sorry, I think on my own and don't buy into
magazine-hype. The products that are hot in magazines are cold air
intakes and nitrous. Cold air works, but its nothing great, it just
improves the restrictive OEM airbox, and nitrous is just distructive
to engines unless done properly, and properly = expensively, so
properly is usually the not-chosen method.
I am looking for a performance enhancement other than nitrous and to
work in addition to normal bolt-on performance upgrades i.e. chip,
intake, exhuast, fuel, and ignition.
Regarding the DEI Cryo 2 product, you stick that "egg" like
object in your intake. That alone will cause some restriction.
object in your intake. That alone will cause some restriction.
the surface area is relatively small. They are only getting ~30 degree
intake tempertature drops, which is the same as using aquamist and
methanol injection.
you end up freezing the air, causing ice to gather at the "egg"
and thus eventually blocking the intake.
and thus eventually blocking the intake.
Personally, I don't care about the "egg", I am not supporting Cryo2
products, Cryofuzion I do.
Correct and Incorrect. Yes, you do take the moisture in the ambient
air and freeze it and it will collect as a thin layer on the tubes,
but it reaches a "steady-state" of freezing and thawing. So, the
moisture in the intake air charge is dried as the moisture freezes to
the sidewalls, but then it melts from the air still being above
freezing, but it melts in droplet form... so, its acting like a
miniature version of aquamist injection (just a lot less water). But
there is never anything more than a ~0.025" worth of ice that forms,
so its quite insignificant. Remember the flow rates of their most
RETRICTIVE interfreezer is 826CFM, does your intake path flow anything
near that? I know mine doesn't. I am running a 2.3L Volvo, which at
the MOST will flow 435CFM, so I'm fine.
Simple physics. The incoming air will run along the surface of
the piece of metal,...thus cooling it.
the piece of metal,...thus cooling it.
to change temperature is for one of two ways. For uncontrolled
expansion of a pressurized gas, or for heat to be removed by some
mechanical means of heat transfer (heat exchanger).
Ok, IF by using your "magical V" you happen to be compressing
the air (and adding heat) and then after the V allowing it to expand.
The temperature of the gas was raised becuase work was required to
compress the gas and then as it expands the temperature drops, but
you're net change in temperature is >0 b/c it is not a perfect
adiabadic cycle (no heat flows into or out of the system, deltaQ = 0).
So, unless you just created something new that breaks some laws of
physics, maybe YOU should make your "magical V" intake get in the
magazines and sell it, instead of shooting from the hip.
Regarding the Cryofuzion, the example from their website shows
an NA motor. Okay, fair enough.
an NA motor. Okay, fair enough.
engines, and some are superchaged engines
professional racing organization (and track officials) probably
will not allow you to use this product on the track.
will not allow you to use this product on the track.
but I dont run track, i run street. But that is a very good point to
bring up. Although I see no reason why it would be banned from track
use, since you aren't adding anything to the fuel. But that is out of
my realm, ask someone who knows.
why do you want to place those cooling devices IN the
exhaust?
exhaust?
exhuast system. There is a standard wing profile (one that does not
develop lift) shaped device that is welded at the end of your exhaust
system to create conditions for better exhaust flow. Once again, back
to my explaination earlier. At the trailing edge of a standard wing
profile at subsonic flow rates is the region of lowest pressure, and
when a gas is discharged at a pressure of ~800 psi (At a room
temperature of 80 F, the vapor pressure is ~ 880 psia, so its actually
a bit higher in the exhuast stream) it will create an enhanced effect
of low pressure. Result? Lowering your backpressure significantly if
not approaching a point of vacuum if you're engine exhaust flow is
small enough. Either way, it is helping to increase turbo spool up in
addition to helping the motor expell its exhuast gases by drawing them
out from the low pressure region created.
Do you want to know why that device that gets placed in the
intake tract is roughly 6 - 12 inches long? Because the more surface
area, the more cooling effect you will have. Same concept as brakes.
intake tract is roughly 6 - 12 inches long? Because the more surface
area, the more cooling effect you will have. Same concept as brakes.
Don't be fooled into spending your hard earned cash into this
junk.
junk.
it. I'm just offering this to the others who dont happen to think as
you do.
What happens when you run out of CO2?
you run out of gas?
Are there any quick and convenient refill stations nearby?
centers, scuba shops, welding shops or industrial gas supply houses? I
know those are all very scarce and hard to find, so you're probably
right, why even consider it.
How about nitrous? Now that is an inconvenient gas to try and refill.
Those tanks last even less ~3-4 shots/tank. Cryo ~15-20 chill and
shots/tank. Also, nitrous is $4/lb to refil vs. ~$15/tank for CO2.
And w/ the non-working devices both in the intake and the
exhaust (causing a restriction and increased backpressure),
exhaust (causing a restriction and increased backpressure),
(4port 3.5" x 9.0" core) and goes higher from there.
Take a simple physics and chemistry course and you'll
understand.
understand.
How about 4 years of Mechanical Engineering?
I'm sorry, I guess I wasnt paying attention in class.
#10
The Stage 3 area of the diagram. It runs their "Fuel Interfreezer". If you want to keep your fuel cooler, run a heat exchanger similar to an oil cooler, except you have fuel flowing through it. Also, keep in mind that any professional racing organization (and track officials) probably will not allow you to use this product on the track. If you modify your fuel lines to run into this "Fuel Interfreezer", you might as well just use a fuel cooler.
fuel cooling has been around for a while in the domestic scene......... if you look up edelbrook, they have these setups