CAI vs drop in filter - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

Reply
 
 
 
Thread Tools Search this Thread
Old 03-31-2006, 11:08 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2006
Location: Monroe, MI
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Ritchey is on a distinguished road
Default CAI vs drop in filter

What are the diffrences hp wise between a CAI and a drop in air hog? or would it be possible to run a ricepipe directly into a stock air box with a performance filter?
Ritchey is offline   Reply With Quote
Old 03-31-2006, 11:15 PM   #2
Senior Member
Posts like a Corvette
 
Join Date: Jul 2004
Location: Bolingbrook, IL Location: Clarkston, MI
Posts: 1,256
Thanks: 0
Thanked 0 Times in 0 Posts
llBlazin_llLo is on a distinguished road
Default

Usually a cone air filter will have more surface area then a performance 'drop in' air filter. But that isn't the whole story... If you look at your old filter, their are areas that are really dirty and other areas that look brand new. A cone air filter is more efficient at using the whole air filter.
llBlazin_llLo is offline   Reply With Quote
Old 03-31-2006, 11:21 PM   #3
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2006
Location: Monroe, MI
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Ritchey is on a distinguished road
Default

so what if you took off the front part of the stock box, and expose the front of the filter? just a thought .
Ritchey is offline   Reply With Quote
Old 04-01-2006, 02:03 AM   #4
Senior Member
Certified Car Nut
 
Join Date: Oct 2003
Posts: 19,756
Thanks: 0
Thanked 0 Times in 0 Posts
1993 SLE is on a distinguished road
Default

Quote:
Originally Posted by Ritchey
so what if you took off the front part of the stock box, and expose the front of the filter? just a thought .

i would not advise that....the accordian tube is not designed for optimal laminar flow, and the filter will just suck in hot air also not a optimal design...best bet would be a rice pipe Cone filter and a a good heatshield to draw in the cool air
1993 SLE is offline   Reply With Quote
Old 04-01-2006, 02:16 AM   #5
Senior Member
Certified GM nut
 
Join Date: May 2005
Location: Wickliffe, Ohio
Posts: 2,155
Thanks: 0
Thanked 0 Times in 0 Posts
McGrath is on a distinguished road
Default

Having a gutted airbox and drop in K&N myself.... I have noticed that since the front of my airbox isn't completly open I noticed a small square dirties very fast compared to the rest of the filter; restriction in it'* self there. Also the according tube I'm sure isn't close to being the best for airflow. Drop in K&N with a gutted airbox will give you a nice increase even with the butt dyno; but a CAI has to have a slight edge over a OEM airbox.

Ed
McGrath is offline   Reply With Quote
Old 04-01-2006, 11:26 AM   #6
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Laminar flow through the filter and whole intake setup translates into velocity (very much desired for power).

The cone filter is round, and air enters evenly distributed around it'* circumference. A drop in filter cannot achieve this, as the air comes in to the rectangular filter, passes through, and has to fight to get to a hole that is usually offset to one side of the other, then bump along through an accordian flex-tube.
willwren is offline   Reply With Quote
Old 04-01-2006, 12:34 PM   #7
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Mar 2006
Location: Monroe, MI
Posts: 17
Thanks: 0
Thanked 0 Times in 0 Posts
Ritchey is on a distinguished road
Default

That answers my questions, thank'* again you guy'* for this valuable info. It'* nice to be able to ask these questions without you guy'* making me feel stupid!
Ritchey is offline   Reply With Quote
Old 04-02-2006, 06:39 PM   #8
Senior Member
Posts like a 4 Banger
 
Join Date: May 2004
Posts: 124
Thanks: 0
Thanked 0 Times in 0 Posts
T-Keith is on a distinguished road
Default

First of all 92+ H-bodies have a very good airbox compared to many cars. Secondly most cone filters I've seen do not have much more surface area then the stock one. A square patch of dirty filter near the opening actually PROVES that the filter is not being a restriction, otherwise the air would spread out more evenly. As for flow advanges of a cone filter, they are so tiny compared to all the other factors, that you shouldn't worry about it.
T-Keith is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
K&N issue drop in filter ptrfair Performance, Brainstorming & Tuning 4 01-19-2008 07:42 PM
K&N Drop in filter fitting uber-man Performance, Brainstorming & Tuning 12 04-20-2007 03:52 PM
4T65E, drop pan, change filter; questions... agrazela 1992-1999 17 01-13-2007 01:40 PM
CAI FILTER brandon4545 Performance, Brainstorming & Tuning 8 04-10-2005 06:28 PM
I want to drop some weight Blk_Bonneville Performance, Brainstorming & Tuning 9 12-31-1969 08:00 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:03 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.