Drivetrain M7 Hood Scoop... deltas
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Former Vendor
Joined: Jul 2003
Posts: 1,594
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From: los angeles
M7 Hood Scoop... deltas
Here's some findings that some of you will find very informative and to a certain
extent eye opening......
As we were doing research for our new hood scoop, one of the criterias were the temperature Deltas between the stock unit and the M7 scoop.
As you can see there's a substantial difference between both units, producing
denser/cooler air in to the engine ie. producing more horse power.
price: M7 scoop $199.95
We can also offer the scoop prepainted to your color of choice for $120.
peter
Team M7
562-608-8123
extent eye opening......
As we were doing research for our new hood scoop, one of the criterias were the temperature Deltas between the stock unit and the M7 scoop.
As you can see there's a substantial difference between both units, producing
denser/cooler air in to the engine ie. producing more horse power.
price: M7 scoop $199.95
We can also offer the scoop prepainted to your color of choice for $120.
peter
Team M7
562-608-8123
Last edited by M7; Apr 8, 2005 at 05:11 PM.
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Former Vendor
Joined: Jul 2003
Posts: 1,594
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From: los angeles
Originally Posted by andy@ross-tech.com
What was the ambient temperature?
It was approx 70ºF.. a balmy California afternoon.
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6th Gear
Joined: Oct 2002
Posts: 3,652
Likes: 6
From: Lansdale, PA
According to my calculations, your efficiency with the stock intercooler scoop is 24% and with the M7 scoop it is 37%. Both of these are incredibly poor results, much worse than I have seen any of my testing.
https://www.northamericanmotoring.co...ad.php?t=23248
What was your test method and where, when, and how are you taking these measurements?
https://www.northamericanmotoring.co...ad.php?t=23248
What was your test method and where, when, and how are you taking these measurements?
6th Gear
Joined: Oct 2002
Posts: 3,652
Likes: 6
From: Lansdale, PA
It does look much nicer than the other scoop add-on out there.
By knowing ambient temp, and the conditions that existed when the runs were made, you can calculate efficiency over a range of conditions:
By knowing ambient temp, and the conditions that existed when the runs were made, you can calculate efficiency over a range of conditions:
You've been withholdn from me
6th Gear
Joined: Jul 2004
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From: Orlando, FL
Originally Posted by macncheese
Is this at a particular vehicle speed?
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Former Vendor
Joined: Jul 2003
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From: los angeles
Andy thank you for the vote of confidence.....
Insead of complaining first about the poor efficency, would it not be more
productive to ask how it was done first....
I meassured the temps accross the core with an IR thermometer which shows
opposite to your findings a very dramatic improvement...wouldn't you agree.
As for speeds, I drove at mixed speeds (5 mile loop) 0-90mph city/hwy.
peter
Team M7
562-608-8123
www.m7tuning.com
Insead of complaining first about the poor efficency, would it not be more
productive to ask how it was done first....
I meassured the temps accross the core with an IR thermometer which shows
opposite to your findings a very dramatic improvement...wouldn't you agree.
As for speeds, I drove at mixed speeds (5 mile loop) 0-90mph city/hwy.
peter
Team M7
562-608-8123
www.m7tuning.com
Last edited by M7; Apr 8, 2005 at 08:30 AM.
6th Gear
Joined: Oct 2002
Posts: 3,652
Likes: 6
From: Lansdale, PA
Were you measuring the temperature of the air or the temperature of the metal? What speed and load conditions were there when you did the testing? I have never seen results that low under any load or speed conditions, hence my comment.
I don't understand that sentence. 
I meassured the temps accross the core with an IR thermometer wich shows opposite to your findings a very dramatic improvement...wouldn't you agree.
6th Gear
Joined: Jul 2004
Posts: 3,054
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Hmmmm... I don't think Andy said there wasn't improvement (24% stock vs. 37% w/ scoop), I think he said they were both 'poor results'. A 54% increase in efficiency sounds good to me... It sounds like Andy's beef is with a poor performing stock intercooler...
Coordinator :: Sin City MINI Club & AMVIV
Joined: Aug 2002
Posts: 4,587
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From: Las Vegas
Going from 24% to 37% is a 50% increase, certainly a significant increase. I think Andy was concerned that the efficiency numbers were much lower than he's been getting, especially with the stock scoop.
6th Gear
Joined: Oct 2002
Posts: 3,652
Likes: 6
From: Lansdale, PA
Originally Posted by M7
Andy thank you for the vote of confidence.....
Insead of complaining first about the poor efficency, would it not be more
productive to ask how it was done first....
I meassured the temps accross the core with an IR thermometer which shows
opposite to your findings a very dramatic improvement...wouldn't you agree.
As for speeds, I drove at mixed speeds (5 mile loop) 0-90mph city/hwy.
peter
Team M7
562-608-8123
www.m7tuning.com
Insead of complaining first about the poor efficency, would it not be more
productive to ask how it was done first....
I meassured the temps accross the core with an IR thermometer which shows
opposite to your findings a very dramatic improvement...wouldn't you agree.
As for speeds, I drove at mixed speeds (5 mile loop) 0-90mph city/hwy.
peter
Team M7
562-608-8123
www.m7tuning.com
So the numbers show the temperature of the IC, inlet/middle/outlet? If so, what do the two numbers on either side represent vs. only one in the middle?
on another note, is it me, or in profile does it look like the 'Afrin' nose on the hood? :smile: Looks clean from the front, though!
on another note, is it me, or in profile does it look like the 'Afrin' nose on the hood? :smile: Looks clean from the front, though!
6th Gear
Joined: Apr 2004
Posts: 1,179
Likes: 0
From: San Francisco Ca.
Peter, you HAVE been holding out!!! 
Is there any noticable wind noise at higher speeds? It needs to be on my car, looks kinda funny in that electric blue
. Can you send me one to check out?
James
Is there any noticable wind noise at higher speeds? It needs to be on my car, looks kinda funny in that electric blue
. Can you send me one to check out? James
6th Gear
Joined: Apr 2004
Posts: 1,179
Likes: 0
From: San Francisco Ca.
Originally Posted by Eric_Rowland
on another note, is it me, or in profile does it look like the 'Afrin' nose on the hood? :smile: Looks clean from the front, though!
I think it's just the pic. or the color.