Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-08-2011, 12:38 PM   #141 (permalink)
EcoModding Apprentice
 
Join Date: May 2011
Location: Oregon
Posts: 106
Thanks: 0
Thanked 26 Times in 22 Posts
Pardon the newb question, but if a warm air intake is a good idea, why do cars with turbos have intercoolers? Should we do a partial block of intercoolers to raise the charge temp? I understand the need to reduce the risk of detonation...

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-08-2011, 12:43 PM   #142 (permalink)
Moderate your Moderation.
 
Join Date: Nov 2008
Location: Troy, Pa.
Posts: 8,919

Pasta - '96 Volkswagen Passat TDi
90 day: 45.22 mpg (US)
Thanks: 1,369
Thanked 430 Times in 353 Posts
A turbo can quickly reach 1300°... Hot.

Put a temp sensor in the intake stream before and after the intercooler, and you'll see why its there. For low boost, they're not always necessary.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 05-08-2011, 01:03 PM   #143 (permalink)
Renaissance Man
 
Formula413's Avatar
 
Join Date: Jan 2008
Location: In the Northeast dreaming of the Southwest
Posts: 596

Aegean C - '17 Honda Civic LX
90 day: 42.21 mpg (US)
Thanks: 20
Thanked 31 Times in 24 Posts
Quote:
Originally Posted by Christ View Post
A turbo can quickly reach 1300°... Hot.

Put a temp sensor in the intake stream before and after the intercooler, and you'll see why its there. For low boost, they're not always necessary.
What he said. Boost creates a LOT of heat. Air gets hot when you compress it. Naturally aspirated cars are not heating the incoming air in any way, except possibly a small amount of heat soak in the intake tubing under the hood.
__________________

  Reply With Quote
Old 08-14-2011, 08:15 PM   #144 (permalink)
Corporate imperialist
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,266

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 273
Thanked 3,569 Times in 2,833 Posts
Quote:
Originally Posted by Formula413 View Post
What he said. Boost creates a LOT of heat. Air gets hot when you compress it. Naturally aspirated cars are not heating the incoming air in any way, except possibly a small amount of heat soak in the intake tubing under the hood.
The only people I know that widely use a non-intercooled turbo are the 6.5L chevy diesel guys. I have read posts where they say 160-180'F is a normal IAT for them when rolling down the highway. A few have seen IATs peak at 300'F on hot days while towing on a hill climb.

Also I noticed the wiki had barely been up dated in the last 6 months, until I got ahold of it.
  Reply With Quote
Old 08-14-2011, 08:39 PM   #145 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
...when air is compressed, it rises in temperature, so 100ºF incoming air (before the turbo or compressor) can exit at much HIGHER (10X) temperature.

...the purpose of the "intercooler" it to remove as much of that "increased" air temperature as possible before the air is "stuffed" into the cylinders.
  Reply With Quote
Old 08-15-2011, 08:29 AM   #146 (permalink)
Corporate imperialist
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,266

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 273
Thanked 3,569 Times in 2,833 Posts
In a diesel you want to get as much air mass stuffed into the cylinder as possible to run efficiently at any speed.
That is why I plan to run an intercooler and water injection on my diesel.
Water injection will be my next wiki after the articles printed in this months in "dieselpower magazine" become free for viewing on the internet. That one article is going to be my main "external link".
  Reply With Quote
Old 10-16-2011, 03:16 AM   #147 (permalink)
In hypermiler central
 
Join Date: Jul 2008
Location: UC Berkeley
Posts: 230

[SOLD] Highway Warrior - '00 Mazda Protege LX 1.6L Manual
90 day: 35.93 mpg (US)

Basic Miata - '06 Mazda Miata Touring
90 day: 30.93 mpg (US)
Thanks: 55
Thanked 6 Times in 3 Posts
Send a message via AIM to 1337
Question Thinner differential oil?

From the "65+ Efficiency Mods" page:

Quote:
Originally Posted by MetroMPG View Post
Synthetic transmission/differential oil
Reduces friction between gears leading to less energy being absorbed as heat into the oil. Also increases parts life. Again, most effective for vehicles in cold climates, since the viscosity of conventional lubricants increases as ambient temperature drops.

There are a few threads that discuss synthetic or lower-weight transmission oil. Has anyone experimented with thinner oil in the differential of a RWD car?
__________________
  Reply With Quote
Old 11-17-2011, 08:17 AM   #148 (permalink)
EcoModding Lurker
 
Join Date: Apr 2009
Location: WNY
Posts: 9
Thanks: 5
Thanked 0 Times in 0 Posts
I have; I every case, I found it made the vehicle quieter and in my informal coastdown tests it showed an improvement in mileage.
  Reply With Quote
Old 12-26-2011, 10:42 PM   #149 (permalink)
EcoModding Lurker
 
Join Date: Dec 2011
Location: New York
Posts: 8
Thanks: 0
Thanked 1 Time in 1 Post
Great Compilation!
  Reply With Quote
Old 12-26-2011, 10:50 PM   #150 (permalink)
Master EcoModder
 
Join Date: Dec 2011
Location: Boise Idaho
Posts: 842
Thanks: 39
Thanked 89 Times in 69 Posts
super stock drag racers run ATF in their rear differential. It EATS bearings and ring and pinions.

5-30 engine oil is the minimum I would run, and I sure would not run even that if I were towing with the vehicle.

  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
List of aero mods you can do to your vehicle MetroMPG Aerodynamics 148 08-12-2021 11:53 PM
Experiment: smooth wheel discs tested A-B-A - 4.6% mpg improvement @ 65 mph Concrete Aerodynamics 318 01-19-2015 12:37 PM
Pulse&Glide, and aero mods, big mpg increase. Sulfuric Success Stories 3 01-15-2009 12:57 PM
2006 in review: mods vs. technique. And the winner is... MetroMPG Hypermiling / EcoDriver's Ed 16 12-10-2007 08:46 AM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com