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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-18-2009, 11:02 PM   #11 (permalink)
Driving the TurboWeasel
 
Join Date: Mar 2009
Location: Steuben County, NY
Posts: 459
Thanks: 14
Thanked 18 Times in 17 Posts
I went out for a brief drive tonight, and all was well. Tomorrow will tell on my afternoon drive back through downtown, and then on a 2.5 hour drive to the coast.

My car is a lot blunter than yours in the front. I'm not sure how the Cd differs. Mine probably gives up a few hundredths to yours.

__________________
2012 Chevrolet Cruze Eco 6MT
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-18-2009, 11:13 PM   #12 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
I wasnt as concerned with the cd number but rather how the different shapes affect flow. I don't understand why you are having a problem. You still have more open grille area with your blocks than I do with no blocks.. Its a bit of a puzzler. But now you have me glued to this thread LOL.

FYI: The low speed fan relay kicks in at a coolant temp of 215deg and the high speed kicks in around 225. I forget the exact temp on the high speed fans though. They run all the time with the A/C on.
__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Old 06-19-2009, 12:15 AM   #13 (permalink)
Driving the TurboWeasel
 
Join Date: Mar 2009
Location: Steuben County, NY
Posts: 459
Thanks: 14
Thanked 18 Times in 17 Posts
With further reflection, I was blocking the area of the radiator where the upper hose connects to with the full block. So part of the blocked area did have an effect on cooling.

Also, I installed a 180* thermostat and a re-tuned computer that kicks in the fans at 186*, among other things. That had completely slipped my mind that this was the case until seeing the fan settings on your car. Seeing how my car runs at 177*, there's not too much room before the fans kick in. Much less than the same car with a 195* thermostat running at 193-200*, with the fans set at 215*.

Quick, that should make it less puzzling why I'm having issues.
__________________
2012 Chevrolet Cruze Eco 6MT
  Reply With Quote
Old 06-19-2009, 07:53 AM   #14 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
Yep, Those other mods would make all the difference. Makes total sense now. I am glad I brought up the fan temps.
Thanks
__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Old 06-19-2009, 08:29 AM   #15 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,882

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,403
Thanked 2,901 Times in 1,819 Posts
Hi,

I doubt that the way the hoses attach matter very much. How is the area under the chin: is it blocked off, so it can act as a duct to the radiator -- or is it open?

If it is open, I would try enclosing (the majority) of the chin opening, so the air tha is coming in the lower intakes actually goes throughthe radiator?
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
Old 06-19-2009, 11:15 AM   #16 (permalink)
Driving the TurboWeasel
 
Join Date: Mar 2009
Location: Steuben County, NY
Posts: 459
Thanks: 14
Thanked 18 Times in 17 Posts
It's blocked off. The only airflow the radiator gets is through the upper and lower grilles in the car.

A brief test drive through downtown revealed that the car is okay when it's moving above 20 mph.

Onto the highway test!
__________________
2012 Chevrolet Cruze Eco 6MT
  Reply With Quote
Old 06-19-2009, 11:36 AM   #17 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
Do you have fan indicator lights or do you hear them turn on? Your car came with an undertray from the bumoper cover to the radiator support or did you make one? Mine has some holes on the front side of the radiatpr support that seem like they would be used for that but my bumper cover has no way to mount anything. I wonder if thats how they made up the difference in grille sizes
__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Old 06-19-2009, 11:39 AM   #18 (permalink)
Driving the TurboWeasel
 
Join Date: Mar 2009
Location: Steuben County, NY
Posts: 459
Thanks: 14
Thanked 18 Times in 17 Posts
I keep one slot on my ScanGauge to water temp. When it spikes to 186 then quickly drops, I know the fans have kicked in.
__________________
2012 Chevrolet Cruze Eco 6MT
  Reply With Quote
Old 06-19-2009, 11:42 AM   #19 (permalink)
EcoModding Apprentice
 
QuickLTD's Avatar
 
Join Date: Apr 2009
Location: Tampa, Florida
Posts: 188

Flying Brick - '96 Pontiac Bonneville SE
90 day: 23.57 mpg (US)
Thanks: 1
Thanked 15 Times in 8 Posts
Send a message via AIM to QuickLTD Send a message via Yahoo to QuickLTD
Makes sense. LOL I'm still to cheap to buy a ScanGauge but I really should invest. Sorry I edited my last post as you were reading what I originally posted.
__________________
1996 Pontiac Bonneville SE 3.8L V6
  Reply With Quote
Old 06-19-2009, 11:54 AM   #20 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: Earth
Posts: 5,209
Thanks: 225
Thanked 808 Times in 592 Posts
Umm... What's the main object of a grill block? To block the cooling airflow so the engine gets up to operating temperature faster (or in my case, period) in winter, right? So if you're not getting enough cooling in summer, you take it out.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gasoline expected to remain cheap this summer Frank Lee The Lounge 0 04-14-2009 03:43 PM
grille blocks, fan kicks on malibuguy EcoModding Central 12 01-20-2009 01:04 PM
Temperature controlled grille block Piwoslaw Aerodynamics 19 11-09-2008 10:24 PM
Grille block: front or back and top or bottom? 07b2300 Aerodynamics 11 07-07-2008 10:19 PM
Full Grille Block: Upper Grille DifferentPointofView Aerodynamics 12 02-28-2008 10:14 AM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com