OK, just so I understand this right, the intake temp after the SC but before the IC (Pre-Core) was 182° and AFTER the IC it was 63°

Anyone know off the top of their heads what the average drop is for the std IC?

 

This is from WMS website from Randy's testing:

Stock Intercooler
Boost - 10.8 PSI
Inlet temp -262F
Outlet temp - 120F
Ambient temp - 83F

GRS Intercooler
Boost - 10.3 PSI
Inlet temp - 270F
Outlet temp - 114F
Ambient - 83F


From Peter's post:

M7 DFIC testing
70mph
5th Gear
3400 rpm
11.7:1 air fuel ratio
Pre core 182˚
Post core 63˚


As you can see the M7 peice is kicking butt! I might have a GRS IC for sale soon.

 

:impatient

holy crap those are awesome numbers!,

Oh Man,
just when I though I could relax a bit
my wallet is getting ansty yet again,

regards,
Charles

 

Would it be possible to lengthen the IC inlet and shorten the "horn" that bolts to the intake to move this unit a little to the drivers side for the guys that have the Ram Air scoop? Just a thought.

 

It is??

I guess i must be reading the numbers wrong. the GRS and Stock done on a dyno at WOT, Full boost and unknown speed of fan is any blowing air across it with 90deg hotter pre core yet only 50deg hotter post core. VS the DFIC on a moving road (more air) with unknown throttle (anywhere from 0-20 percent) and possible no boost whats so ever. Not to mention Ambient temp and humidity. To me thats not Kicking Butt comparision.

But hey that IMHO. Now if its done in a simular test (dyno, fan and near same ambient) and puts out better numbers then ill say its kicking butt

 

CNC milled top plate and CF Ram Intake V3.0...

 

I ordered one last night....... it just makes too much intuitive sense...... there is no room for the Alta and the GRS to evacuate hot air...... the M7 solves that problem....I know core length/density/eddy currents etc, etc..... this is very promising and the best design air 2 air, I have seen so far

 

that looks cool Sid. Glad to see you having an opportunity to flex your design muscle over at M7. I think its a good fit, congrats.

 

 

I understand where your coming from. A similar test would have to be run to be able to compare this data side by side.

 

Good Morning....

I wan't to appologize for a small number eff-up.....
THe foncusion.... come from a set of numbers that was non printable
as of now.....heheheh.

Pre-core 121 degrees

Post-core 63 degrees

These numbers are still incredibly good, proving that our design is
the best in the MINI universe.

peter
Team M7
562-608-8123

 

And the ambient temperature was 70F Magic

Peter...check with Will and ask him about the "XTREME" core design I sent him for CFD testing

 

No magic, just physics! I'm still formulating my theory, but soon I should be able to explain what we're seeing.

And the proper term is "Xtreme", Sid. We no longer require the E, just ask MTV.

 

I stand corrected...but I'm not hip enough for MTV

 

You're only as hip as you feel!

 

Disclaimer: I think M7s IC design is a great innovation, and much needed for our cars.
Question: From the data supplied above I calculated the temperature drop across the IC:

Stock = 142 degF (ambient 83)
GRS = 165 degF (ambient 83)
M7 = 119 degF (ambient 70 ?)
M7b = 58 degF (see post #86)

Isn't the M7 the worst performer here?

Just asking...
phil

Stock Intercooler
Boost - 10.8 PSI
Inlet temp -262F
Outlet temp - 120F
Ambient temp - 83F

GRS Intercooler
Boost - 10.3 PSI
Inlet temp - 270F
Outlet temp - 114F
Ambient - 83F


From Peter's post:

M7 DFIC testing
70mph
5th Gear
3400 rpm
11.7:1 air fuel ratio
Pre core 182˚
Post core 63˚

 

but incomplete. They will be "filled in" as testing completes.

FWIW, the stock IC has WOT thermal efficiencies at redline (2nd gear) of 60%-70%. Cruising at 75 or so it can reach over 80% (not that it really matters).

Let's just call Peter and Randy's initial numbers that, initial numbers.

Matt

 

You can't just subtract like that. The equation for efficiency is:

(inlet - outlet)/(inlet - ambient)

You can find more info here:
http://www.nissanperformancemag.com/april05/nerds/

So, plugging in numbers:

stock: (262-120)/(262-83) = 79%
GRS: (270-114)/(270-83) = 83%
M7: (182-63)/(182-70) = 106%

The M7 has MORE THAN 100% efficiency!!!! That, guys, is SICK.

 

Matt, I think the responses are going to be this way when Peter says its the best ever without all of the info attached.

 

Where does it say ambient was 70º?

Given that temp this would make this IC 113% efficient. That I'd really like to see




Please check my math

 

What about post #86 from Peter which revises the M7 figures? These say tempIN=121 and tempOUT=63, so the equation gives you (121-63)/(121-70) = 58/51 = 1.14.
It's MSFITOYs post that says the ambient was 70. It must have been pretty cool given those in and out temperatures, or the M7 AGS is working really well too, these days.

PS--I know these are all *preliminary* and not test bed numbers, but come on, all us guys with PhDs will take anything and run with it, that's how we're taught...

phil

 

oooops...you didn't hear that...I know nuuuuuuthing

 

Just remember that everyone is entitled to their opinion, and our opinion is that ours is the best!

Yes, these are preliminary numbers, and we know that we need independent verification, which is why Matt will also be testing the DFIC.

 

Those are the numbers I used. Rounded down to be conservative.
Using your 1.14 equals 114% efficiency.
To the best of my limited knowledge that is impossible.

If this was accomplished maybe room temperature fusion is on the horizon. That is something I'd buy for sure.

 

I am gald you all are having as much fun with this information as we were yesterday when we were recording them. I can confirm that the ambient was 70 degrees . We took readings at several speeds including as low as 30 MPH which would put us in a disadvantage with some of the other units dyno results and the drop percentages were still VERY good . As for we , M7 , saying it is the best I do not recall seeing that anywhere and if we did then I apologize. It will be up to you all once the final numbers are in to decide that. Our feeling is that you will

Randy
M7 tuning