Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Emblempros
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

Reply
 
Thread Tools
Old 01-14-2012, 04:45 PM   #1
bilydean
 
bilydean's Avatar
 
Drives: One of the rare ABM camaros
Join Date: Apr 2009
Location: San Jose, CA
Posts: 417
CAI vs OEM air box

Can someone explain why the different cold air intakes supposedly give more power and mpg over the oem air box? When I look at the oem box, it pulls air from outside of the engine bay, so should be cooler air. If I put a different air filter in the stock housing, I would reduce the restriction, so why are they significantly different? (on the fence about getting one)

Dean
__________________
1100 4/28
2000 5/23
3000 5/27
3400 6/20 TPW of 6/29
3800 7/3
4D00 7/8 interned at QC
4B00 7/16 Released from QC
4200 7/20

8/5 We picked up the car
bilydean is offline   Reply With Quote
Old 01-14-2012, 04:49 PM   #2
blufin

 
blufin's Avatar
 
Drives: 2010 2SS/RS CGM M6
Join Date: Oct 2008
Location: WPB, Florida
Posts: 1,334
The aftermarket intakes eliminate the funky stock intake tube that is mainly to quiet the engine noise, but its also a major restriction.
__________________
12.618 @ 110.75 Bone Stock 1/4 mile
8.165 @ 86.52 Bone Stock 1/8 mile
11.189 @ 124.44 on a 1.73 60' TVS2300 3.4 pulley, JRE tuned, Kooks LT headers and HF cats, MBRP catback exhaust, CAI intake, ADM scoop. Stock wheels/tires
blufin is offline   Reply With Quote
Old 01-14-2012, 05:03 PM   #3
Apex Chase

 
Apex Chase's Avatar
 
Drives: 2000 Camaro SS
Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 22,859
Vehicle engineers have many factors other than maximum performance to consider when they design OEM intake systems (noise level, fuel economy, emissions, etc.) and in the process leave plenty of room for improvement. Aftermarket air intake systems replace the factory air box and tubing with more efficient components designed to create more power. The two big things that aftermarket air intakes systems strive to do are:

1) Draw in larger amounts of cool dense air from outside the hot engine compartment. The more air your engine can suck in and push out the more power it will make. One example of how this is done is the filter. A cone filter has a much larger surface area than a stock panel filter. This means more air can pass through.

2) Reduce the restriction in the intake system. This is done by increasing the diameter of the tubing, smoothing out the interior of the intake, eliminating baffles and muffling devices, and limiting the number and severity of any bends in the tubing.


The tone of your post seems to indicate that you are suspicious of claimed performance improvements, and you should be. Some manufacturers do inflate their numbers but there is plenty of evidence out there in the form of customer dyno results and even third party tests to prove which systems perform and which ones are decorative.

Here are a couple of links to posts on our blog with some good technical info about intake and filter design. If you have any questions feel free to hit me up.

What Is The Best Air Intake System For The Camaro SS?

Choosing a Dry or Oiled Media Filter for Your Vehicle
__________________
Apex Chase is offline   Reply With Quote
Old 01-14-2012, 05:55 PM   #4
sschevybear11
 
sschevybear11's Avatar
 
Drives: 2011 Black 1SS
Join Date: Jun 2011
Location: moline,il
Posts: 504
Well, I tried a intake system and after the required learn time it lost maybe a 10th at the track. It felt as tho the throttle response was noticeable but I sold it upon having other quality issues and really, with no gain why have it. I now have a rotor-fab and jannetty tune for after hibernation.
__________________
2011 Black 1SS M6 12.75@110.91 bone stock
Now: Coated Dynatech LT's/!Cats/Hurst Shifter/Roto-fab/SLP SS badges/JRE 415HP Tune, Scoop & Washer Relocation Bottle,Hurst Stunner 20X9 Wheels, Moroso Catch Can, ASP pulley, Magnaflow X-pipe, GTO remote clutch reservoir
1989 Silver 5.0 Mustang LX Coupe
1999 Pewter Tahoe LT
2011 Blue Camry SE
sschevybear11 is offline   Reply With Quote
Old 01-14-2012, 07:06 PM   #5
bilydean
 
bilydean's Avatar
 
Drives: One of the rare ABM camaros
Join Date: Apr 2009
Location: San Jose, CA
Posts: 417
Lets assume the funky intake tube is not there any more and replaced by a 4" tube. Are the aftermarkets getting the better performance because they replace the OEM tube?
__________________
1100 4/28
2000 5/23
3000 5/27
3400 6/20 TPW of 6/29
3800 7/3
4D00 7/8 interned at QC
4B00 7/16 Released from QC
4200 7/20

8/5 We picked up the car
bilydean is offline   Reply With Quote
Old 01-14-2012, 07:22 PM   #6
bilydean
 
bilydean's Avatar
 
Drives: One of the rare ABM camaros
Join Date: Apr 2009
Location: San Jose, CA
Posts: 417
Quote:
Originally Posted by Apex Chase View Post
Vehicle engineers have many factors other than maximum performance to consider when they design OEM intake systems (noise level, fuel economy, emissions, etc.) and in the process leave plenty of room for improvement. Aftermarket air intake systems replace the factory air box and tubing with more efficient components designed to create more power. The two big things that aftermarket air intakes systems strive to do are:

1) Draw in larger amounts of cool dense air from outside the hot engine compartment. The more air your engine can suck in and push out the more power it will make. One example of how this is done is the filter. A cone filter has a much larger surface area than a stock panel filter. This means more air can pass through.

2) Reduce the restriction in the intake system. This is done by increasing the diameter of the tubing, smoothing out the interior of the intake, eliminating baffles and muffling devices, and limiting the number and severity of any bends in the tubing.


The tone of your post seems to indicate that you are suspicious of claimed performance improvements, and you should be. Some manufacturers do inflate their numbers but there is plenty of evidence out there in the form of customer dyno results and even third party tests to prove which systems perform and which ones are decorative.

Here are a couple of links to posts on our blog with some good technical info about intake and filter design. If you have any questions feel free to hit me up.

What Is The Best Air Intake System For The Camaro SS?

Choosing a Dry or Oiled Media Filter for Your Vehicle
Not suspicious, more curious. If the 3 main improvements are:
1. the intake tube - easily replaced
2. drawing cool air- the stock air box does that already
3. more surface area on the filter & less restriction - currently using a Green reusable filter. Surface area maybe smaller, but if they flow the same rate as say a K&N, then the restriction is still the 4" tube.

Just trying to get a better understanding.
__________________
1100 4/28
2000 5/23
3000 5/27
3400 6/20 TPW of 6/29
3800 7/3
4D00 7/8 interned at QC
4B00 7/16 Released from QC
4200 7/20

8/5 We picked up the car
bilydean is offline   Reply With Quote
Old 01-14-2012, 07:46 PM   #7
SSGUNNER
Chu no guat a hasa is?
 
SSGUNNER's Avatar
 
Drives: 14 Jeep G Cherokee Overland HEMI
Join Date: Jun 2011
Location: Some where in So Cal
Posts: 4,163
__________________
11 2SS/RSL99No Longer Stock (Sold) 6/19/14:AAC Plasma DRL's | Plug n play harness | Elite CC | Tint: 35% & 5% | LED Dome light | Show-N-Go Plate Holder | Flowmaster AT | C.A.I. Intake | VMAX CNC Spiral Ported TB | Husky Splash Guards
SSGUNNER is offline   Reply With Quote
Old 01-14-2012, 08:06 PM   #8
VR Baron
SoCal Camaro5 Race Team
 
VR Baron's Avatar
 
Drives: 2012 VR 2SS RS M6
Join Date: Mar 2010
Location: SO CAL
Posts: 12,644
They do make more dyno power, but how much really translates to what you would notice on the street ? SLP has there own but also they offer a filter and just the better tube, not the whole thing, so maybe not a whole cai needed, for the street anyway
__________________
#1 car 2010 Black 2LTRS 1/28/10-10/15/11, 17900 miles
#2 car 2012 Red 2SSRS 10/15/11-
Mods: Outlaw Axelback & J Pipes /Magnaflow resonated X Pipe/Heritage&Stillen Grill/Halltech CAI/Apex Scoop,Washer Bottle/OEM Strut Tower Brace/VMax T/B/ G.M. Blade Spoiler/SLP Splitter/TSW Nurburgring wheels & Michelin Super Sport tires/JBA Shorty Headers,HiFlow cats & tune/Remote Clutch resovoir/ Pedders Supercar coilovers and Pedders 27mm/32mm ZL1 Spec sway bars / Whiteline craddle Inserts & Upper rear arm bushes/ 416/414 RW HP/TQ
VR Baron is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Supercharger / Turbocharger Results (INFO) Thread radz28 Forced Induction - V8 230 04-17-2014 05:27 PM
Unofficial 1/4 Mile (V8) 2010+ Camaro Fast List Merc Dragstrip and Launch Techniques Discussion 250 04-01-2014 10:40 AM
2012 V6 C.A.I. Inc. | Camaro 3.6L Cold Air Inductions Intake System! | Plus Packages! AutoAgenda V6 Bolt-Ons & Tunes 87 08-25-2013 05:22 PM
Anyone cutout the mail slot? Wasp 5th Gen Camaro SS LS LT General Discussions 26 10-01-2011 07:15 PM
CEL - P1682 PSU SS Tuning / Diagnostics -- engine and transmission 4 09-29-2011 07:27 PM


All times are GMT -5. The time now is 12:06 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.