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Drivetrain M7 DFIC

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Old Mar 29, 2006 | 07:40 PM
  #176  
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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.

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.
 
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Old Mar 29, 2006 | 07:40 PM
  #177  
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Originally Posted by obehave
Magic, physics, relativity, pseudo science all in one thread.

Wow!!
Just wait until I break out the flux capacitor. Then we'll really have a show!
 
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Old Mar 29, 2006 | 07:43 PM
  #178  
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Originally Posted by Will @ M7 Tuning
Just wait until I break out the flux capacitor. Then we'll really have a show!
Show off. Why I oughta kick yer *** for even suggesting that there showboatin' nonsense, William!
 
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Old Mar 29, 2006 | 07:51 PM
  #179  
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"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??
 
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Old Mar 29, 2006 | 07:56 PM
  #180  
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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??
Hey! There's nothing wrong with MDs! I am myself a candidate for just such a piece of paper! You should hold it with pride.
 
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Old Mar 29, 2006 | 07:57 PM
  #181  
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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??
Only if the car is moving
 
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Old Mar 29, 2006 | 08:15 PM
  #182  
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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?
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.
 
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Old Mar 29, 2006 | 08:22 PM
  #183  
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Your post makes perfect sense! But my issue is with the outlet temp being lower than ambient. Or was that a fluke?

I'm delrious!!

obehave, only on NAM
 
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Old Mar 29, 2006 | 08:24 PM
  #184  
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Originally Posted by Will @ M7 Tuning
Just wait until I break out the flux capacitor. Then we'll really have a show!
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?
 
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Old Mar 29, 2006 | 08:31 PM
  #185  
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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??
On how much money you have, and what else you have on your car. Depending on how the M7 and the production Alta flow through test out, I'd say spend the money on other stuff. ICs aren't cheap. If you have lots of mods on your car, go for one, but if you're just starting the mods, I'd spend the money elsewhere first.

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.
 
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Old Mar 29, 2006 | 08:52 PM
  #186  
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Take a look here......

https://www.northamericanmotoring.co...ad.php?t=46268

This is old and needs updating, but you get the idea....

Matt
 
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Old Mar 30, 2006 | 03:44 AM
  #187  
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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.

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.
 
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Old Mar 30, 2006 | 05:05 AM
  #188  
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Whats the patent #?
 
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Old Mar 30, 2006 | 06:37 AM
  #189  
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I hold the key.....lol
 
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Old Mar 30, 2006 | 06:43 AM
  #190  
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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?
Don't know but it would definitely help your ET.

Trap speed 15MPH, ET .000000000000000001 Sec.
 
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Old Mar 30, 2006 | 06:50 AM
  #191  
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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.
I think I've got it.
The hood is the heat sink and the IC is a giant Peltier device.
 
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Old Mar 30, 2006 | 06:51 AM
  #192  
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Originally Posted by obehave
Don't know but it would definitely help your ET.

Trap speed 15MPH, ET .000000000000000001 Sec.
Nah, man, you have to reach the coveted 88 mph, remember?
 
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Old Mar 30, 2006 | 06:52 AM
  #193  
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Originally Posted by obehave
I think I've got it.
The hood is the heat sink and the IC is a giant Peltier device.
hmmmmmmmmm.....


 
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Old Mar 30, 2006 | 07:15 AM
  #194  
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Originally Posted by obehave
I think I've got it.
The hood is the heat sink and the IC is a giant Peltier device.
I'd pay big money for a huge thermoelectric heat pump that's tough enough to handle the vibration from an automobile engine!
 
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Old Mar 30, 2006 | 04:29 PM
  #195  
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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
 
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Old Mar 30, 2006 | 05:01 PM
  #196  
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hahaha
 
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Old Mar 30, 2006 | 05:02 PM
  #197  
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Originally Posted by Will @ M7 Tuning
Now you're starting to do it right! The extra variable you added is "constant mass flow"
How is constant mass a "variable" ?

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.
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.
 
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Old Mar 30, 2006 | 05:49 PM
  #198  
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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)...
You should be able to find these pretty easily by searching the US Patent and Trademark Office database at http://www.uspto.gov/patft/index.html
There is access to both issued patents and published applications
 
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Old Mar 30, 2006 | 05:51 PM
  #199  
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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 already gave up.

Good luck
 
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Old Mar 30, 2006 | 05:54 PM
  #200  
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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.
 
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