How many of you are running hot air intakes? - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 10-25-2007, 03:21 AM   #1
Registered Member
 
Join Date: Oct 2007
Posts: 89
Country: United States
How many of you are running hot air intakes?

So far I removed the tubing so Im sure its sucking in hot air now, I heard hot air reduces the power but helps fuel economy. Im just going to remove the lid all together I think. Your thoughts on sucking in hot air?

__________________

__________________
1994 Geo Metro

1998 Buick Regal GS

1999 Chevrolet C2500

1998 Corvette
Three6Eight is offline   Reply With Quote
Old 10-25-2007, 04:33 AM   #2
Registered Member
 
Join Date: Sep 2007
Posts: 64
Country: United States
Given the lower MPG i just saw yesterday with rain and a 20 deg lower IAT, I think that the warm air is better for FE. Hard to say for sure, because I was dealing with heavy rains at times too, but the IAT was much lower on the trip were 23.3mpg was had, rather than the previous 26.6 on a sunny day with higher IAT.
__________________

jeffreymccoy is offline   Reply With Quote
Old 10-25-2007, 06:56 AM   #3
Registered Member
 
ZugyNA's Avatar
 
Join Date: May 2006
Posts: 587
Country: United States
I run full hot air in winter only...then I think it helps some.
__________________
Leading the perpetually ignorant and uninformed into the light of scientific knowledge. Did I really say that?

a new policy....I intend to ignore the nescient...a waste of time and energy.
ZugyNA is offline   Reply With Quote
Old 10-25-2007, 10:58 AM   #4
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
Three6Eight -

This would have made a great poll. I am running an HAI. Different drivetrains will have different responses. It has worked for almost all the Saturn S-Series owners (thanks cheapybob!).

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? http://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 10-25-2007, 03:33 PM   #5
Registered Member
 
Mentalic's Avatar
 
Join Date: Jun 2007
Posts: 121
Country: United States
Quote:
Originally Posted by jeffreymccoy View Post
Given the lower MPG i just saw yesterday with rain and a 20 deg lower IAT, I think that the warm air is better for FE. Hard to say for sure, because I was dealing with heavy rains at times too, but the IAT was much lower on the trip were 23.3mpg was had, rather than the previous 26.6 on a sunny day with higher IAT.
Rain really eats into FE so its going to be hard to get a good feel for the 20deg change alone. For me I've seen 3-8mpg loss on heavy rain trips.

I may be seeing an affect from the recent cooler air intake temperatures as well. Although I suspect its something else thats being affected by the 30deg lower temps besides intake air.
__________________
Mentalic is offline   Reply With Quote
Old 10-25-2007, 04:39 PM   #6
Supporting Member
 
lovemysan's Avatar
 
Join Date: Jun 2006
Posts: 595
Country: United States
I'm running the HAI. Saturns like it. I'd say that other GM cars would also. It uses MAP sensor in stead of MAF. My little brother tried the HAI in his nissan altima. It would do well at first and then the ECU would adjust for the hot air and the mileage would stay the same.
__________________
02 Saturn SL
5 speed
for pics click the link below

http://s75.photobucket.com/albums/i3...emysan/saturn/

[SIGPIC][/SIGPIC]
"for best mileage swap in a d15z1"
lovemysan is offline   Reply With Quote
Old 10-25-2007, 08:19 PM   #7
Registered Member
 
kickflipjr's Avatar
 
Join Date: Sep 2005
Posts: 933
Country: United States
I have used hot air before with fairly good results (saturn), but I think it has the best results in the winter.
__________________
2008 EPA adjusted:


Distance traveled by bicycle in 2007= 1,830ish miles
Average commute speed=25mph (yes, that's in a car)
kickflipjr is offline   Reply With Quote
Old 10-25-2007, 08:46 PM   #8
Senior Member
 
CoyoteX's Avatar
 
Join Date: Dec 2012
Posts: 230
Country: United States
Location: Southern WV
Today I did a little test, with the intake hose and lid on driving steady state 55mph the intake temperature was at 31 degrees C. Taking those off and driving for 10 min to get it stable it was reporting 32 degrees C. So on a Metro there isn't much difference in running the stock hose and lid and not running it. There just isn't much heat under the hood normally so it is still getting colder air.

I might try hooking my warm air setup back on there adjusting it trying to get a good temperature going into the intake but I have no idea what ideal air temperature should be. When I was running straight into the mainfold it killed my mileage so I know having it super hot is no good.
CoyoteX is offline   Reply With Quote
Old 10-26-2007, 12:10 AM   #9
Registered Member
 
Join Date: Oct 2007
Posts: 89
Country: United States
Quote:
Originally Posted by Coyote X View Post
Today I did a little test, with the intake hose and lid on driving steady state 55mph the intake temperature was at 31 degrees C. Taking those off and driving for 10 min to get it stable it was reporting 32 degrees C. So on a Metro there isn't much difference in running the stock hose and lid and not running it. There just isn't much heat under the hood normally so it is still getting colder air.

I might try hooking my warm air setup back on there adjusting it trying to get a good temperature going into the intake but I have no idea what ideal air temperature should be. When I was running straight into the mainfold it killed my mileage so I know having it super hot is no good.
Hey man so your the guy who owns that Metro Page. When I got mines its one of the first sites I ran into.

What spark plugs would you reccomend for this car? Wires? Today I was driving and my car felt like it had 10 horsepower and it was idling bad I thought it was ready to hit its death bed I popped the hood and a spark plug wired just disconnected and I put it back on, its on there loose though so Im gonna replace them

I tried joining the swift page I actually tried twice and twice they rejected me. Bunch of elitists or what?

Nice stable you there dude. You got the Z28 and the Metro for the days you wanna save gas. Cool combo
__________________
1994 Geo Metro

1998 Buick Regal GS

1999 Chevrolet C2500

1998 Corvette
Three6Eight is offline   Reply With Quote
Old 10-26-2007, 08:42 AM   #10
Registered Member
 
Danronian's Avatar
 
Join Date: Aug 2007
Posts: 652
Country: United States
On my VX i have a short-ram intake, which in affect is a HAI. I haven't been able to get my old EPA on my car yet so I'm not sure if it really makes a difference.

That being said, this intake is a lot larger than the factory one, and it has a diry k&n filter on the end...so probably not a good comparison
__________________

__________________


On the never-ending quest for better gas mileage...
Danronian is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Incorrect Milage Calcuatlion PatM Fuelly Web Support and Community News 4 07-17-2009 08:21 PM
Gallons per Mile? nerb Fuelly Web Support and Community News 1 11-12-2008 04:33 AM
Throttle spring...pedal vs RPM? ZugyNA General Fuel Topics 17 08-01-2006 05:17 PM
LRR tires PDF info GasSavers_Jack General Fuel Topics 11 06-14-2006 06:21 PM
krousdb & xcel win MPG rally at Tour de Sol MetroMPG General Fuel Topics 32 05-19-2006 03:12 AM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 02:21 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.