CRX VX Mileage Experiments - Fuelly Forums

Click here to see important news regarding the aCar App

Reply
 
Thread Tools Display Modes
 
Old 03-24-2008, 12:05 PM   #1
Registered Member
 
Join Date: Jan 2008
Posts: 96
Country: United States
CRX VX Mileage Experiments

All tests were complete loops starting and ending at the same gas station and the same pump. The fill included fuel viewed at the flapper door. At each fill I waited until all air bubbles dissipated (including rocking the car). Every trip was real world driving. All conditions and all speed limits were duplicated. There were no one-way long downhill runs. If we went down, we came back up the hill. The seven trips averaged 398.589 miles each, for a total of 2,790.124 miles. Tire air pressure is 40 psi front, and 32 psi rear.

The wet weight of the original HF was 1,780 lbs with a 10 gal gas tank; its best on a 417.3 mile trip was 51.7 mpg, no luggage, no tools, but it regularly averaged 42 mpg and had to use premium gas to nullify the pinging.

The wet weight of the CRX HF/VX/CX is 1,833 lbs with a 12 gal gas tank. The as tested weight, including two adults, two dogs, tools, drinks, food for all, jackets, blankets and pillows (for dogs). Who said a CRX only fits two? The total as tested weight 2,441 lbs, wet. And, it runs on regular.

The L02 four-wire ECU was used during the first four trips. The lowest mileage recorded was 48.2 mpg. The highest mileage was 51.452 mpg. This was for a total of 1,446.294 miles.

The L00 CA five-wire had only one test. It showed 49.597 mpg for 417.1 miles driven. This trip was identical to one of the trips using the L02 ECU.
(The L02 previous trip was 49.63 mpg at 417.4 miles.) Additional tests with this ECU did not seem warranted. The total non-lean burn average for the L02 and the L00 was 49.544 mpg.

The A00 lean-burn five-wire has had two tests, to date. The first: 408.62 miles traveled, produced 55.477 mpg. The second: 509.49 miles traveled, produced 58.455 mpg. At that mileage the 12 gal tank will travel 701.46 miles. It is an awsome feeling to travel 350 miles and only use a half-tank of gas. The average lean-burn capable A00 mileage increase (7.422 mpg) over the L00 and L02 non lean-burn ECUs is 14.98%.

The vehicle has not been altered from its original exterior excepting deterioration of the 23+ year-old plastic front end. It's missing a tooth and one eyebrow that blew off during the first road trip. (Plastic cracks in the sun, don'cha know? This car was from Southern California.)

In the future it will have aerodynamic modifications (and repairs ).

I still am shooting for a 70 mpg average (just 13 mpg to go ).
__________________

soletek is offline   Reply With Quote
Old 03-24-2008, 12:23 PM   #2
Registered Member
 
Join Date: Mar 2008
Posts: 22
Country: United States
Nice!!!!!!!
__________________

__________________
Drag Limited is offline   Reply With Quote
Old 03-25-2008, 05:11 AM   #3
Registered Member
 
Join Date: Jan 2008
Posts: 9
Country: United States
Very cool and thanks for sharing. I'm going to do this swap just need to find a clean CRX w/o rust.
oline897 is offline   Reply With Quote
Old 03-25-2008, 11:24 AM   #4
Registered Member
 
Join Date: Jan 2008
Posts: 96
Country: United States
Quote:
Originally Posted by oline897 View Post
Very cool and thanks for sharing. I'm going to do this swap just need to find a clean CRX w/o rust.
Cool! Hope you find the CRX you're looking for soon. Are you looking for a 1st gen or 2nd gen? I'll keep my eye open if you let me know which one. I run across them from time to time. 1st gen is a lighter car, 2nd gen more plug and play (though not entirely). What state do you live in? I'm in CA not much rust out here. Recently I found an '86 Si, factory black with moon-roof, at a local pic-n-pull for sale as a whole car. It had been hit in the left front corner (looked like all cosmetic damage). I didn't look very hard at it since I wasn't in the market. They were asking $999. Just something I saw recently. Anyway, the best of luck on your project.
soletek is offline   Reply With Quote
Old 03-29-2008, 06:10 PM   #5
Registered Member
 
Join Date: Jan 2008
Posts: 9
Country: United States
I think I want a 2nd gen. I'm from Minnesota but will pick a clean CRX up anywhere. Everything around here is completely rusted out. Thanks a lot!
oline897 is offline   Reply With Quote
Old 04-03-2008, 01:51 AM   #6
Registered Member
 
Join Date: Mar 2008
Posts: 8
Country: United States
It's a real pleasure to hear the real world results of your brave experiment! I can't wait to see what you do for aero-mods!
dresp is offline   Reply With Quote
Old 05-31-2008, 03:53 PM   #7
Registered Member
 
Join Date: May 2008
Posts: 10
Country: United States
what's the A00 lean-burn five-wire ecu?
GasSavers_kermit is offline   Reply With Quote
Old 05-31-2008, 04:02 PM   #8
Registered Member
 
GasSavers_Binary's Avatar
 
Join Date: May 2008
Posts: 16
Country: United States
Quote:
Originally Posted by kermit View Post
what's the A00 lean-burn five-wire ecu?
This is the first version of the P07 computer used in the Civic VX model. The Civic VX uses a 5 wire o2 sensor to monitor the lean burn and works in conjunction with the P07 A00 computer.
__________________

__________________
Big oil execs making 32mil a year and we're paying upwards of $4 a gallon.. Hubberts peak you say? Oh ok, I believe you.
GasSavers_Binary is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Ethanol and Cylinder Deactivation: '08 Impala rh77 Car Reviews 5 12-10-2007 11:16 AM
Is there a OBDI or OBDII conversion for older vehicles? kozaz General Fuel Topics 3 11-13-2007 07:32 PM
US Forest chief: Use trees to make ethanol repete86 Automotive News, Articles and Products 3 09-13-2007 05:36 PM
XFi mirror caps? baddog671 General Fuel Topics 4 07-10-2007 02:51 PM
The great news about the EPA's new tests repete86 General Fuel Topics 8 02-07-2007 06:01 AM

» Fuelly iOS Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 05:15 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.