Drivetrain M7 DFIC
Waiting for more numbers is likely the best solution.
But you are beginning to grasp the complexity of the problem. It's much, much worse than throwing an equation at the data and expecting the answer to be the "it".
the point I was making there is that the increased speed and volume of air over the cooling surfaces of the intercooler over a given amount of time will carry away more heat than the conventional solution because it's in one end, and out the other, at speed. In vertical IC's, the air goes in, comes to a relative standstill while it waits to be pressurized through the intercooler. The pressurization, as you've correctly asserted, heats the air, so the actual ambient temperature moving through the stock intercooler is potentially higher by degrees than the true ambient temperature. With less pressurization, the M7 DFIC is cooled by a much truer ambient temp.
But you are beginning to grasp the complexity of the problem. It's much, much worse than throwing an equation at the data and expecting the answer to be the "it".
the point I was making there is that the increased speed and volume of air over the cooling surfaces of the intercooler over a given amount of time will carry away more heat than the conventional solution because it's in one end, and out the other, at speed. In vertical IC's, the air goes in, comes to a relative standstill while it waits to be pressurized through the intercooler. The pressurization, as you've correctly asserted, heats the air, so the actual ambient temperature moving through the stock intercooler is potentially higher by degrees than the true ambient temperature. With less pressurization, the M7 DFIC is cooled by a much truer ambient temp.
Originally Posted by Barnabas
Ok so...it's not what I thought it was. Basically you're saying that because of the increased flow it gives better thermal efficiency right? That makes sense, but doesn't account for temps lower than ambient.
I was under the impression a compression took place somewhere, and expanded on exit, which is accompanied by decrease in temperature. One part I didn't understand w/ this was where the heat from the compression went
I just chalked that up to the "magic" of the design and figured it'd explain itself later. But now after your post I'm confused.
If the gains are made just by increasing the volume of air through the IC, the outlet temps cannot be lower than ambient. Not for air to air anyways like macncheese explained...
I think I'll shut up now and just wait for more #'s to come in.
I was under the impression a compression took place somewhere, and expanded on exit, which is accompanied by decrease in temperature. One part I didn't understand w/ this was where the heat from the compression went
I just chalked that up to the "magic" of the design and figured it'd explain itself later. But now after your post I'm confused.If the gains are made just by increasing the volume of air through the IC, the outlet temps cannot be lower than ambient. Not for air to air anyways like macncheese explained...
I think I'll shut up now and just wait for more #'s to come in.

Originally Posted by Will @ M7 Tuning
Just wait until I break out the flux capacitor. Then we'll really have a show! 


"Mom-my head hurts, physics is tough!"
Man, I hold an "advanced" degree and all this stuff makes my head spin.
Oh.... that's right...
it's an MD, not a PhD
Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??
Man, I hold an "advanced" degree and all this stuff makes my head spin.
Oh.... that's right...
it's an MD, not a PhD
Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??
Originally Posted by jfunkmd
"Mom-my head hurts, physics is tough!"
Man, I hold an "advanced" degree and all this stuff makes my head spin.
Oh.... that's right...
it's an MD, not a PhD
Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??
Man, I hold an "advanced" degree and all this stuff makes my head spin.
Oh.... that's right...
it's an MD, not a PhD
Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??

Originally Posted by jfunkmd
"Mom-my head hurts, physics is tough!"
Man, I hold an "advanced" degree and all this stuff makes my head spin.
Oh.... that's right...
it's an MD, not a PhD
Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??
Man, I hold an "advanced" degree and all this stuff makes my head spin.
Oh.... that's right...
it's an MD, not a PhD
Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??
Originally Posted by Will @ M7 Tuning
Oh, so now you want to add in extra variables, hmm? Well, that changes the efficiency calculations just a bit, now doesn't it?
If the intercooler does indeed work similar to a front mount, it will gain some of the benefits of a front mount. I think what your saying about pressure has something to do with the fact that top mount intercoolers require the air to turn 90 degrees in order to hit the intercooler at a perpendicular angle. Front mount intercoolers don't have this drawback so air flows more easily through the core, increasing its low speed effectiveness.
What it doesnt explain is how you're getting extra heat transfer. Heat transfer relies on a difference of temperature of two objects, otherwise you'll have thermal equilibrium. When the intercooler's temp reaches the ambient air temp, there is no incentive for the energy to transfer to the air to be carried away. At least thats how I learned it. Let me know what Im doing wrong.
Originally Posted by Will @ M7 Tuning
Just wait until I break out the flux capacitor. Then we'll really have a show! 

Also where do you expect us normal folks to get 1.21GW to power that sucker?
And more interesting-ly, does going forward in time add infinite whp?
It all depends...
Originally Posted by jfunkmd
"Matt- Just tell me if living in the dry AZ desert a "bigger" IC is a good choice for moi'. If so which one??
Just think, for $1800, you can get a Webb head!
Or for just under $1900, you can get the M7/Cosworth head.
Or for $300, you can get one of the scoops, and improve the stock unit.
Or for <$100, you can get the stock one coated, and get a bit of a gain....
Matt
ps, we should all keep in mind the benefit per dollar spent. None of the ICs I've seen or tested are the best bang for the buck. That's why in the MC Squared article, I didn't reccomend it as an early mod.
Take a look here......
https://www.northamericanmotoring.co...ad.php?t=46268
This is old and needs updating, but you get the idea....
Matt
This is old and needs updating, but you get the idea....
Matt
Now you're starting to do it right! The extra variable you added is "constant mass flow"
Look at every efficiency calculation on this site. They use one condition to determine efficiency: heat!
So now we need to redefine how we want to calculate efficiency. You can achieve higher than 100% thermal efficiency fairly easily.
Look at every efficiency calculation on this site. They use one condition to determine efficiency: heat!
So now we need to redefine how we want to calculate efficiency. You can achieve higher than 100% thermal efficiency fairly easily.
Originally Posted by macncheese
Im not sure I understand. What "extra variables" did I add?
If the intercooler does indeed work similar to a front mount, it will gain some of the benefits of a front mount. I think what your saying about pressure has something to do with the fact that top mount intercoolers require the air to turn 90 degrees in order to hit the intercooler at a perpendicular angle. Front mount intercoolers don't have this drawback so air flows more easily through the core, increasing its low speed effectiveness.
What it doesnt explain is how you're getting extra heat transfer. Heat transfer relies on a difference of temperature of two objects, otherwise you'll have thermal equilibrium. When the intercooler's temp reaches the ambient air temp, there is no incentive for the energy to transfer to the air to be carried away. At least thats how I learned it. Let me know what Im doing wrong.
If the intercooler does indeed work similar to a front mount, it will gain some of the benefits of a front mount. I think what your saying about pressure has something to do with the fact that top mount intercoolers require the air to turn 90 degrees in order to hit the intercooler at a perpendicular angle. Front mount intercoolers don't have this drawback so air flows more easily through the core, increasing its low speed effectiveness.
What it doesnt explain is how you're getting extra heat transfer. Heat transfer relies on a difference of temperature of two objects, otherwise you'll have thermal equilibrium. When the intercooler's temp reaches the ambient air temp, there is no incentive for the energy to transfer to the air to be carried away. At least thats how I learned it. Let me know what Im doing wrong.
Originally Posted by Barnabas
Does it lay down some flaming rubber? That has to be a must.
Also where do you expect us normal folks to get 1.21GW to power that sucker?
And more interesting-ly, does going forward in time add infinite whp?
Also where do you expect us normal folks to get 1.21GW to power that sucker?
And more interesting-ly, does going forward in time add infinite whp?
Trap speed 15MPH, ET .000000000000000001 Sec.
Originally Posted by macncheese
Im not sure I understand. What "extra variables" did I add?
If the intercooler does indeed work similar to a front mount, it will gain some of the benefits of a front mount. I think what your saying about pressure has something to do with the fact that top mount intercoolers require the air to turn 90 degrees in order to hit the intercooler at a perpendicular angle. Front mount intercoolers don't have this drawback so air flows more easily through the core, increasing its low speed effectiveness.
What it doesnt explain is how you're getting extra heat transfer. Heat transfer relies on a difference of temperature of two objects, otherwise you'll have thermal equilibrium. When the intercooler's temp reaches the ambient air temp, there is no incentive for the energy to transfer to the air to be carried away. At least thats how I learned it. Let me know what Im doing wrong.
If the intercooler does indeed work similar to a front mount, it will gain some of the benefits of a front mount. I think what your saying about pressure has something to do with the fact that top mount intercoolers require the air to turn 90 degrees in order to hit the intercooler at a perpendicular angle. Front mount intercoolers don't have this drawback so air flows more easily through the core, increasing its low speed effectiveness.
What it doesnt explain is how you're getting extra heat transfer. Heat transfer relies on a difference of temperature of two objects, otherwise you'll have thermal equilibrium. When the intercooler's temp reaches the ambient air temp, there is no incentive for the energy to transfer to the air to be carried away. At least thats how I learned it. Let me know what Im doing wrong.
The hood is the heat sink and the IC is a giant Peltier device.
Originally Posted by obehave
I think I've got it.
The hood is the heat sink and the IC is a giant Peltier device.
The hood is the heat sink and the IC is a giant Peltier device.
Not trying to get off topic
Peter, Will, and Randy
Originally we were going to send you this message privately but we thought that other members would be interested in the information.
It would appear that our companies have been developing a similar top mount intercooler. Before we finalize our design can you publish your patent number(s) so that we make sure not to infringe on your patent.
Also please specify your AGS tube patent number(s) as we are continuing to develop new silicone products for the MINI. I don’t think that anything we have in the works is similar to your tubes(s), but its always nice to double check.
Hope everyone can learn a bit about patent from these quick questions.
Thanks
Jeff
To refresh you on the ALTA Sidedraft
https://www.northamericanmotoring.co...ad.php?t=56802
Originally we were going to send you this message privately but we thought that other members would be interested in the information.
It would appear that our companies have been developing a similar top mount intercooler. Before we finalize our design can you publish your patent number(s) so that we make sure not to infringe on your patent.
Also please specify your AGS tube patent number(s) as we are continuing to develop new silicone products for the MINI. I don’t think that anything we have in the works is similar to your tubes(s), but its always nice to double check.

Hope everyone can learn a bit about patent from these quick questions.
Thanks
Jeff
To refresh you on the ALTA Sidedraft
https://www.northamericanmotoring.co...ad.php?t=56802
Originally Posted by Will @ M7 Tuning
Now you're starting to do it right! The extra variable you added is "constant mass flow"
Originally Posted by Will @ M7 Tuning
Look at every efficiency calculation on this site. They use one condition to determine efficiency: heat!
So now we need to redefine how we want to calculate efficiency. You can achieve higher than 100% thermal efficiency fairly easily.
So now we need to redefine how we want to calculate efficiency. You can achieve higher than 100% thermal efficiency fairly easily.
Originally Posted by ALTA2
... publish your patent number(s) so that we make sure not to infringe on your patent.
Also please specify your AGS tube patent number(s)...
Also please specify your AGS tube patent number(s)...
There is access to both issued patents and published applications
Originally Posted by macncheese
How is constant mass a "variable" ?
I think you mean temperature and not heat, but yes, we're looking at a thermal efficiency. I still dont understand over 100% thermal efficiency without some 3rd party energy source.
I think you mean temperature and not heat, but yes, we're looking at a thermal efficiency. I still dont understand over 100% thermal efficiency without some 3rd party energy source.
I already gave up.
Good luck
The silence is deafening
Been following the thread with interest. Was hoping for more discussion, but after the Alta posting its dried up.
This thread has the vibe of a fun poker game suddenly gone serious... someone just threw thier keys on the table.
This thread has the vibe of a fun poker game suddenly gone serious... someone just threw thier keys on the table.



