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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-07-2014, 08:35 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Feb 2014
Location: Virginia
Posts: 41

MyCar - '93 Toyota Camry LE
90 day: 32.35 mpg (US)

Christine - '07 Honda Civic
90 day: 41.47 mpg (US)
Thanks: 0
Thanked 2 Times in 2 Posts
Warm Air Intake Idea

I have an idea here. Not sure I will try it, just curious. Has anyone thought about putting something like a heater core in the air box and splicing it into the coolant system?

I know its more complicated than just running a pipe behind the radiator, but maybe you could get hotter air. Or would the air get too hot coming off the coolant? Maybe someone with a better understanding than me could chime in.

Like I said, just an idea. Maybe if it sounds like a good one I'll give it a try.

__________________

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-07-2014, 09:56 PM   #2 (permalink)
Has two Insights
 
Gasoline Fumes's Avatar
 
Join Date: Oct 2009
Location: New York State
Posts: 1,219

CRXFi - '88 Honda CRX XFi

Insight 256 - '00 Honda Insight
Team Honda
Gen-1 Insights

Insight 5342 - '00 Honda Insight
Team Honda
Gen-1 Insights
90 day: 71.83 mpg (US)
Thanks: 647
Thanked 541 Times in 314 Posts
At least one member here has done it. I've considered it, but need to find a heater core that is small enough to fit in my airbox.
__________________
  Reply With Quote
Old 11-07-2014, 10:37 PM   #3 (permalink)
EcoModding Lurker
 
Join Date: Jul 2014
Location: MI
Posts: 54

grey panther - '02 Mercury Grand Marquis
Team Panther
90 day: 27.15 mpg (US)
Thanks: 9
Thanked 18 Times in 12 Posts
I also installed a heat exchanger I had in the airbox. It was tight but I shoe horned it in with a couple of notches in each side. it was 1" thick and just the size of the rectangular filter element. I installed it jsut below the filter. I had to reroute the intake to the lower corner which was better and allowed the air to flow the max distance over the exchanger. I covered the airbox inside with some real aluminum duct tape also. The tube was 4 passes and 1/4''. I ran 3/8 ID hose from the heater core return line. I used 2 manual ball valves to control the flow and experiment. I can run full bypass, allow full flow to the airbox or partial flow also. I was gong to install a 4 way valve that I could control from in the cabin, but I found this wasn't needed. With the airbox loop wide open and the bypass half opened the exchanger will raise the AIT about 10 to 11 degrees as measured from one side of the airbox to the other as measured with an IR temp tool.
I hung a cheap pool thermometer in front of the inlet to monitor the under hood input.

BTW, the airbox inlet opening is just a 1.25 ID tube near the lower radiator hose and an additional 5/8" hole between the heat exchanger hose inlets.

Didn't need it much in August except for warmup, but am using it all the time now that outside temps are lower. I have a MAF. I guess the theory is 10% less dense air, then 10% less fuel, less horsepower but the v8 has more than enough for ecodriving. No lugging and have run it up to 90mph with no problems. Hard for me to give any direct FE improvement number. I would guess less than .5 mpg though so far. Winter will be interesting.
Also, before I installed it I measured about a 10 degree differential on the cabin heater supply and return line. If I wanted to lower the supply temp to the airbox I could turn on the heater, lol
  Reply With Quote
Old 11-07-2014, 11:50 PM   #4 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 8,271

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 36.73 mpg (US)

Mom's grandmamobile - '06 Toyota Camry SE
Thanks: 5,403
Thanked 1,548 Times in 1,176 Posts
It is supposed to be 89 tomorrow, but 73 next Sunday.

When would I use a WAI?
  Reply With Quote
Old 11-08-2014, 12:13 AM   #5 (permalink)
herp derp Apprentice
 
Join Date: Oct 2008
Location: Lawrence, KS
Posts: 1,026

Saturn-sold - '99 saturn sc1
Team Saturn
90 day: 28.28 mpg (US)

Yukon - '03 GMC Yukon Denali
90 day: 14.43 mpg (US)
Thanks: 42
Thanked 315 Times in 226 Posts
T vago had a heater core in a Dakota? Air box lid http://ecomodder.com/forum/showthrea...ant-21863.html
But all the pics are down, and I think t vago is on hiatus

I'd go with ecotex's route if I had a suitable valve laying around like he did http://ecomodder.com/forum/showthrea...wai-28033.html
  Reply With Quote
Old 11-08-2014, 01:59 AM   #6 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 7,833

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: 124.63 mpg (US)
Thanks: 178
Thanked 2,496 Times in 1,951 Posts
There have been a few very slick heater core in air box mods done and pictured on here.

__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com