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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-02-2017, 10:47 AM   #11 (permalink)
Rat Racer
 
Fat Charlie's Avatar
 
Join Date: May 2011
Location: Route 16
Posts: 4,150

Al the Third, year four - '13 Honda Fit Base
Team Honda
90 day: 42.9 mpg (US)
Thanks: 1,784
Thanked 1,919 Times in 1,246 Posts
Look underneath it, you may already have one.

The parts catalog shows that the BU platform has underbody shields, although your particular one may have been a package that doesn't have them. They can't be all that heavy, as it looks like they're held on with plastic push pins.

If you don't have them, you can do up a good replica out of coroplast.

__________________

Quote:
Originally Posted by sheepdog44 View Post
Transmission type Efficiency
Manual neutral engine off.100% @MPG <----- Fun Fact.
Manual 1:1 gear ratio .......98%
CVT belt ............................88%
Automatic .........................86%

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-02-2017, 01:12 PM   #12 (permalink)
Master Novice
 
elhigh's Avatar
 
Join Date: Jan 2008
Location: SE USA - East Tennessee
Posts: 2,310

Josie - '87 Toyota Pickup
90 day: 27.96 mpg (US)

Felicia - '09 Toyota Prius Base
90 day: 48.81 mpg (US)
Thanks: 422
Thanked 609 Times in 447 Posts
Is it worth it to do the belly pan: absolutely. The manufacturers - except in a few isolated cases - don't spend much time on the underside of the car. You, the buyer, don't see it and therefore are not expected to care how it looks. So it's full of nooks and crannies and aerodynamic nightmare fuel. Some cars have a pan under the engine to improve engine cooling; if you take your car somewhere to get the oil changed, be damned sure they put that thing back. It's about 30/70 they'll just pull it off and toss it.

The typical ecomodder, however, is quite interested in how air flows over every bit of his car, which includes the underside. Belly pans work.

HOWEVER, and this is a big one, you can get nearly belly pan level results with a deeper air dam. The rule of thumb is to get your air dam as low as your lowest hanging underbody part, and to take it out to the edges of your tires. That's faster, easier and cheaper to do while coming close to yielding the same results. Adding side skirts makes the air dam's contribution that much more effective, and like I said, improves the engine's cooling system performance by creating a low pressure zone under the car.

Suggested reading:
http://ecomodder.com/forum/showthrea...ehicle-83.html
Belly pan - EcoModder
http://ecomodder.com/forum/showthrea...how-15026.html
http://ecomodder.com/forum/showthrea...ect-29902.html
http://ecomodder.com/forum/showthrea...ess-23604.html

Anything Aerohead tells you to do aerodynamics-wise, he's probably right. I think the guy is an actual rocket scientist and Knows People in the aero world. Advice from him won't point you wrong. He's converted a Toyota T100 into something that closely resembles a suppository, it's very sleek and a little disturbing.

Reading other stuff from Aerohead and others (this was years ago so if I misremember, my apologies to everyone) what came out of it was that virtually any attention spent on reducing air drag, on anything, pays off. It may never pay itself off, but it always pays.

UltArc has taken a 300-hp Mustang and teased Corolla-worthy numbers out of it. That required some mods but to look at his car, you wouldn't guess they were there. IIRC there's a belly pan under his ride, too.
__________________




Lead or follow. Either is fine.
  Reply With Quote
Old 06-06-2017, 01:23 AM   #13 (permalink)
EcoModding Lurker
 
Join Date: May 2017
Location: Peoria, Arizona
Posts: 12
Thanks: 0
Thanked 3 Times in 3 Posts
Took the snorkel off the air box and it did seem to help to some degree. Revs up easier. Did get better mpg on the highway today. Topped at 32.
  Reply With Quote
The Following User Says Thank You to GKRenegade For This Useful Post:
Fingie (06-06-2017)
Old 06-06-2017, 12:22 PM   #14 (permalink)
Volvo-driving MachYeen
 
Fingie's Avatar
 
Join Date: Jan 2015
Location: Finland
Posts: 789

Neo Volvo - '98 Volvo S70 10V
90 day: 24.98 mpg (US)
Thanks: 298
Thanked 82 Times in 68 Posts
the resonator often sips mileage
__________________
If you don't make any mistakes in your life,
life itself will be a f*ckup.



With Volvo to Valhalla and back!
  Reply With Quote
Old 06-10-2017, 02:50 AM   #15 (permalink)
EcoModding Lurker
 
Join Date: May 2017
Location: Peoria, Arizona
Posts: 12
Thanks: 0
Thanked 3 Times in 3 Posts
I'm looking at how they do skid plates for idea on a full belly pan. I am shying away from just using coroplast because I know over time it can and will droop in the AZ heat and getting hit and whatnot will break it. If I used a fair gauge of aluminum where it's strong and sturdy but not heavy, would cutting holes in it completely defeat the purpose? Only reason I'd drill holes in it would be to save weight. I am also looking at how I can trim weight from the vehicle. Might do a cat back exhaust and save some weight there. I think I can do rear wheel skirts pretty nicely.
  Reply With Quote
Old 06-10-2017, 05:40 AM   #16 (permalink)
Volvo-driving MachYeen
 
Fingie's Avatar
 
Join Date: Jan 2015
Location: Finland
Posts: 789

Neo Volvo - '98 Volvo S70 10V
90 day: 24.98 mpg (US)
Thanks: 298
Thanked 82 Times in 68 Posts
on even highway, weight is less of a concern than aerodynamics.

__________________
If you don't make any mistakes in your life,
life itself will be a f*ckup.



With Volvo to Valhalla and back!
  Reply With Quote
Reply  Post New Thread


Thread Tools




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