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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-07-2009, 09:39 PM   #1 (permalink)
My Goal: 35 MPG All Day
 
RandomFact314's Avatar
 
Join Date: Mar 2009
Location: South Carolina
Posts: 684

1NZ-FE (Year 1) - '05 Scion xA RS 2.0
Team Toyota
Last 3: 34.02 mpg (US)

1NZ-FE (Year 2) - '05 Scion xA RS 2.0
90 day: 33.32 mpg (US)

1NZ-FE (Year 3) - '05 Scion xA RS 2.0
90 day: 35.32 mpg (US)

1NZ-FE (Year 4) - '05 Scion xA RS 2.0
90 day: 34 mpg (US)

1NZ-FE (Year 5) - '05 Scion xA RS 2.0
90 day: 26.87 mpg (US)

1NZ-FE (Years 6,7,8) - '05 Scion xA RS 2.0
90 day: 28.6 mpg (US)

1NZ-FE (Years 9,10,11) - '05 Scion xA RS 2.0
90 day: 27.8 mpg (US)

1NZ-FE (Years 12,13,14) - '05 Scion xA RS 2.0
90 day: 33.99 mpg (US)
Thanks: 39
Thanked 36 Times in 25 Posts
Car loosing weight

Do you think a car can be too light weight? A crx stripped is like 1900 pounds and you can get carbon fiber hoods, hatches, fenders, rims, and tons of other stuff. Is there ever a point where you think your car is just too light to get on the highway safely? *not that I ever expect to spend all that money on c/f for a crx )

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-07-2009, 10:18 PM   #2 (permalink)
Relevance is irrelevant!
 
bluetwo's Avatar
 
Join Date: Jul 2009
Location: Augusta, GA
Posts: 130

CR-EX - '12 Honda CR-Z EX
Thanks: 13
Thanked 3 Times in 3 Posts
Send a message via Yahoo to bluetwo
Too light?.... I think the only potential danger is in having less protection, not that a CRX came with that much to start with. There's certainly very little danger of the car taking flight even at the highest speeds. Lol....
  Reply With Quote
Old 08-07-2009, 10:45 PM   #3 (permalink)
Master EcoModder
 
Join Date: Nov 2008
Location: Madison AL
Posts: 1,123

The Geo - '93 Geo Metro
Team Metro
90 day: 45.16 mpg (US)
Thanks: 30
Thanked 40 Times in 37 Posts
Short answer, no.

Last edited by MadisonMPG; 08-07-2009 at 10:52 PM..
  Reply With Quote
Old 08-07-2009, 11:36 PM   #4 (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
Yeah, it can be too light if you don't do something about the power/weight ratio.

You don't want a 1400 lb CRX (It's been done) with 200 HP on the street (The obvious B-swaps only have 160 at most, stock... H's go into the 200's easily, K's start higher.)

I'd honestly be wary of anything that light with even a 10:1 PWR. (That's 140HP and 1400 lbs.) The lighter the car is, the less grip (comparatively) the tires have, all else equal. That's not saying that the car has to be heavy to drive well, because we all know that's not true, but you have to re-learn how to drive within your means if you go too light. With my 4th Gen down to ~1700 and with 130 HP at the crank, it was kinda squirrely at times, not wanting to keep traction with high-RPM downshifts. Brake bias became an issue as well, as the car became lighter. The rears wanted to lock up under hard braking.

Frankly, the car was actually faster before I pulled all the weight, or started making more torque. It had enough torque to keep the tires spinning through 2nd gear, and high RPM 2nd gear pulls out of corners would inevitably understeer like crazy, whereas with the stock engine, I could walk the throttle through all but the tightest turns, and never lose traction.

It became a large issue of balance when I started losing serious weight and getting more power. Hitting the gas too hard put the front end straight, and hitting the brakes too hard brought the rear end around... couldn't win.
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

  Reply With Quote
Old 08-07-2009, 11:37 PM   #5 (permalink)
Just cruisin’ along
 
jcp123's Avatar
 
Join Date: Jul 2009
Location: Rochester, NY
Posts: 1,183

Beater Echo - '00 Toyota Echo
90 day: 42.67 mpg (US)

Hondizzle - '97 Honda Civic DX
Team Honda
90 day: 46.55 mpg (US)

Shaggin Waggin - '14 Chrysler Town + Country
90 day: 22.56 mpg (US)
Thanks: 66
Thanked 200 Times in 170 Posts
I don't think so. When I get around to building my Model T hot rod, we're talking probably a 1000lb car stripped down (curb weight was ~1200lbs with the 20hp 177" 'Banger), and that's with a heavy cast iron motor out front, and they don't seem to have any trouble staying on the road even with stupid amounts of HP being sent to the back wheels.
__________________



'97 Honda Civic DX Coupe 5MT - dead 2/23
'00 Echo - dead 2/17
'14 Chrysler Town + Country - My DD, for now
'67 Mustang Convertible - gone 1/17
  Reply With Quote
Old 08-08-2009, 12:29 AM   #6 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
My cars are all loosssing weight. It's called the Rust Belt.
__________________


  Reply With Quote
Old 08-08-2009, 01:02 AM   #7 (permalink)
Master EcoModder
 
McTimson's Avatar
 
Join Date: Sep 2008
Location: Nyack, NY
Posts: 310

Maverick - '22 Ford Maverick XLT
90 day: 41.19 mpg (US)
Thanks: 1
Thanked 5 Times in 5 Posts
There's not much to worry about as far as stability and staying on the road, but structural integrity and safety come into play when you start removing too much stuff from the car. But if you're only removing or replacing the 'visual' things, then there's not much to worry about.

When you start drilling holes in the frame of the car trying to save weight, then you might need to worry.
__________________
  Reply With Quote
Old 08-09-2009, 01:11 AM   #8 (permalink)
EcoModding Apprentice
 
Join Date: Jun 2009
Location: French Louisiana
Posts: 123

Yaris - '07 Toyota Yaris Liftback
Thanks: 0
Thanked 0 Times in 0 Posts
*loose = to unbind
*lose = to own something and then fail to keep its possession

Sure. A car that the wind could blow into the air would be too light.
  Reply With Quote
Old 08-09-2009, 01:28 AM   #9 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
__________________


  Reply With Quote
Old 08-09-2009, 02:43 AM   #10 (permalink)
My Goal: 35 MPG All Day
 
RandomFact314's Avatar
 
Join Date: Mar 2009
Location: South Carolina
Posts: 684

1NZ-FE (Year 1) - '05 Scion xA RS 2.0
Team Toyota
Last 3: 34.02 mpg (US)

1NZ-FE (Year 2) - '05 Scion xA RS 2.0
90 day: 33.32 mpg (US)

1NZ-FE (Year 3) - '05 Scion xA RS 2.0
90 day: 35.32 mpg (US)

1NZ-FE (Year 4) - '05 Scion xA RS 2.0
90 day: 34 mpg (US)

1NZ-FE (Year 5) - '05 Scion xA RS 2.0
90 day: 26.87 mpg (US)

1NZ-FE (Years 6,7,8) - '05 Scion xA RS 2.0
90 day: 28.6 mpg (US)

1NZ-FE (Years 9,10,11) - '05 Scion xA RS 2.0
90 day: 27.8 mpg (US)

1NZ-FE (Years 12,13,14) - '05 Scion xA RS 2.0
90 day: 33.99 mpg (US)
Thanks: 39
Thanked 36 Times in 25 Posts
Quote:
Originally Posted by Frank Lee View Post
....
Lol frank lee, I have never seen that video before, funny

  Reply With Quote
Reply  Post New Thread


Tags
carbon fiber, crx, honda, pounds, weight



Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric car conversion: Project ForkenSwift MetroMPG Fossil Fuel Free 1049 Yesterday 04:17 PM
EcoModding for Beginners: Getting great gas mileage. SVOboy EcoModding Central 55 08-21-2012 12:34 AM
Win $100.00 in Free Gas! Design Contest: Ecomod my Ride XFi EcoModding Central 127 02-17-2011 01:07 AM
Magazine: Green Car Journal cfg83 General Efficiency Discussion 5 09-28-2010 01:18 PM
CRX vtec weight reduction !? chipX EcoModding Central 24 09-05-2008 09:17 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