Added an Airiad &...
Thread Starter
Pro
Joined: Nov 2010
Posts: 622
Likes: 23
From: MA
Added an Airiad &...
I saw absolutly no gain!
Actally, I saw a 10 ft/lb drop while HP stayed the same.
This is on a bone stock 13 coupe.
The Airiad was on the car 3 weeks before redynoing it, which should not have made a difference.
Looks like a waste of $250 at this point.
Anyone got any ideas?
Headers & a tune are due shortly (waiting on the headers to arrive then the work begins).
Think that's when the Airaid will "wake up" & make a difference, or, just tune with the stock air cleaner then put on the Airaid to see if gains are to be had?
Actally, I saw a 10 ft/lb drop while HP stayed the same.
This is on a bone stock 13 coupe.
The Airiad was on the car 3 weeks before redynoing it, which should not have made a difference.
Looks like a waste of $250 at this point.
Anyone got any ideas?
Headers & a tune are due shortly (waiting on the headers to arrive then the work begins).
Think that's when the Airaid will "wake up" & make a difference, or, just tune with the stock air cleaner then put on the Airaid to see if gains are to be had?
Burning Brakes
Joined: Feb 2013
Posts: 831
Likes: 1
From: N Jury
This might be your cause and or solution. This worked for me.....not sure about your situation but it could so here's the info....
Here is some good infomation I have come across for you all. This was discovered by them while testing thier intake for the 5th generation Camaros and hence the same issue has been reported on several Corvettes with either the LS3, LS7 or LS9, mainly after the install of a intake because of the increased airflow. There have been reports from serveral people of hesitations without a intake install and this has been known to fix those cars as well. I have these available if you check and find you have a "weak" one. They are all double verified once when new stock is recieved then again once it is shiped.
This was from Vararams web site.
The Air Meter
During our testing we discovered a disparity between identical Camaros in terms of there reaction to changes in airflow and weather conditions.
We noticed that one car would be finicky at cold start and the MAF would scale "weak" while others would be strong and clean.
What we discovered was that the 'WEAK" meters were reading 1560-1670HZ at idle with the A/C off (OEM is 1800MHZ+)
During on road, light throttle input the MHZ would be slow and weak to respond to throttle changes (hesitation)
Wide open throttle showed 120-170MHZ lower than OEM stock (OEM is about 8600MHZ) on the same car.
Weak Meter Fuel trims-
The fuel trims would go to -15% using a VR -3% for a panel filter and -5-8% for other intakes. MHZ would drop as would the idle. When the MAF scaled in at WOT each would richen up accordingly.
Test 2 we pulled the filter from the VR completely, this resulted in fuel trims dropping down from -15% to -24%, MHZ dropped another 70-90MHZ. The car would drive fine but WOT operation was basically weak/flat and timing was low etc...
Now with one simple meter swap which takes about 1min the car immediately corrected, went back to 0% fuel trim MHZ jumped back to 1800+ all within 30 seconds! The car drove like a Rocket!
We began final confirmation by swapping air meters in cars and doing volt meter testing in static conditions. 30 meters, 3 cars = the same exact result every time. We confirmed this with VR customers tuners around the US.
The Result is that these 'weak" meters are not showing the same resistance levels as the majority of OEM meters.
This lead us to contact the GM rep and the actual manufacturer of the meters (its not Dephi) They confirmed the factory which allow us to identify each meter.
These numbers and letters are located on the back of the meter as shown.
(WHAT TO LOOK FOR) The factory code.
The suspect meters have all consistantly had a single letter located in this area VS a number with a letter.
Here is the catch 22
If the airflow is not changed by a substantial amount (our flow testing verifies that most of the aftermarket boxes do not) over OEM then the meter will be within OEM Tolerance but will always be "weak"
you cannot tune this out, its a fundamental issue with the resistance of the meter. It needs to be replaced. This is why some cars are finiky and some are not.
Price is 70.07 ea.
To order simply give us a call shoot me an email at patrick@gmpartshouse.com or here is a link to order online
http://store.gmpartshouse.com/partlo...catalogid=8669
To order simply give us a call shoot me an email at patrick@gmpartshouse.com or here is a link to order online
http://store.gmpartshouse.com/partlo...catalogid=8669
This was from Vararams web site.
The Air Meter
During our testing we discovered a disparity between identical Camaros in terms of there reaction to changes in airflow and weather conditions.
We noticed that one car would be finicky at cold start and the MAF would scale "weak" while others would be strong and clean.
What we discovered was that the 'WEAK" meters were reading 1560-1670HZ at idle with the A/C off (OEM is 1800MHZ+)
During on road, light throttle input the MHZ would be slow and weak to respond to throttle changes (hesitation)
Wide open throttle showed 120-170MHZ lower than OEM stock (OEM is about 8600MHZ) on the same car.
Weak Meter Fuel trims-
The fuel trims would go to -15% using a VR -3% for a panel filter and -5-8% for other intakes. MHZ would drop as would the idle. When the MAF scaled in at WOT each would richen up accordingly.
Test 2 we pulled the filter from the VR completely, this resulted in fuel trims dropping down from -15% to -24%, MHZ dropped another 70-90MHZ. The car would drive fine but WOT operation was basically weak/flat and timing was low etc...
Now with one simple meter swap which takes about 1min the car immediately corrected, went back to 0% fuel trim MHZ jumped back to 1800+ all within 30 seconds! The car drove like a Rocket!
We began final confirmation by swapping air meters in cars and doing volt meter testing in static conditions. 30 meters, 3 cars = the same exact result every time. We confirmed this with VR customers tuners around the US.
The Result is that these 'weak" meters are not showing the same resistance levels as the majority of OEM meters.
This lead us to contact the GM rep and the actual manufacturer of the meters (its not Dephi) They confirmed the factory which allow us to identify each meter.
These numbers and letters are located on the back of the meter as shown.
(WHAT TO LOOK FOR) The factory code.
The suspect meters have all consistantly had a single letter located in this area VS a number with a letter.
Here is the catch 22
If the airflow is not changed by a substantial amount (our flow testing verifies that most of the aftermarket boxes do not) over OEM then the meter will be within OEM Tolerance but will always be "weak"
you cannot tune this out, its a fundamental issue with the resistance of the meter. It needs to be replaced. This is why some cars are finiky and some are not.
Le Mans Master
Joined: Apr 2013
Posts: 5,376
Likes: 1,118
This is interesting. But what I don't get from the post is whether both pictures are of the "weak" MAFs or not and how do you ensure that you can order a new one thats not weak as well??
Race Director
Joined: Mar 2007
Posts: 11,331
Likes: 18
From: Missouri City Texas
Was this done on the same dyno?
The LS3 intake is already VERY good. On an LS2 you would've seen gains. You need to feed it some cool air. I'd just prop open the shroud, personally
That's definitely not an accurate statement, but it is accurate that those are two of the true cold air intakes.
The LS3 intake is already VERY good. On an LS2 you would've seen gains. You need to feed it some cool air. I'd just prop open the shroud, personally
That's definitely not an accurate statement, but it is accurate that those are two of the true cold air intakes.
Safety Car
Joined: Jul 2009
Posts: 3,755
Likes: 190
From: Baton Rouge LA
St. Jude Donor '14, '16
Burning Brakes
Joined: Feb 2013
Posts: 831
Likes: 1
From: N Jury
I strongly believe it's a smart change to make. This was a great move on my part.
I originally thought I had a bad 02 sensor or bad spark plug wire...it was like dragging an anchor when the car was warm...
Now the car is very responsive.
Good luck if you move forward with this ridiculously inexpensive and yet (for me) effective move.
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Burning Brakes
Joined: Mar 2013
Posts: 1,187
Likes: 237
From: Colorado
I agree that the LS3 intake is far better than the LS2 I had. On that, I propped open the shroud and used a K&N Aircharger which I felt was the best solution. I was thinking AirRaid, still with the shroud propped or cutouts at the bottom to let cold air in. Now, I think I may still make the cuts, but will keep the stock filter. Cooler air is what is key, irrespective of the route it takes to get to the intake. You add in this $70 meter, and it's not much of a bargain anymore, at least imo. Great post guys! You saved me some money!
Le Mans Master
Joined: Apr 2013
Posts: 5,376
Likes: 1,118
If you look at the weak MAF and it just has a letter then according to the thread replace the MAF with their replacement and thier MAF has an alphabet letter and a number which is a strong one..
I strongly believe it's a smart change to make. This was a great move on my part.
I originally thought I had a bad 02 sensor or bad spark plug wire...it was like dragging an anchor when the car was warm...
Now the car is very responsive.
Good luck if you move forward with this ridiculously inexpensive and yet (for me) effective move.
I strongly believe it's a smart change to make. This was a great move on my part.
I originally thought I had a bad 02 sensor or bad spark plug wire...it was like dragging an anchor when the car was warm...
Now the car is very responsive.
Good luck if you move forward with this ridiculously inexpensive and yet (for me) effective move.
Team Owner
Joined: Sep 1999
Posts: 41,732
Likes: 1,718
From: Springfield MO
Safety Car
Joined: Oct 2003
Posts: 3,597
Likes: 101
From: TN PA
CI 5-6-7-8-9-10-11 Vet
The loss of power sounds about right to me. On both my non-tuned 08 Vette and 11 Camaro SS adding aftermarket CAI's made the cars run slower at the drag strip.
The Camaro ran best with the so called weak MAF and the stock intake. Adding the CAI and then afterwards the strong MAF still couldn't match the stock times.
The CAI's were removed from both cars but I modified the Beehive to fit the stock intake on the Vette..
The Camaro ran best with the so called weak MAF and the stock intake. Adding the CAI and then afterwards the strong MAF still couldn't match the stock times.
The CAI's were removed from both cars but I modified the Beehive to fit the stock intake on the Vette..