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Owner: bs25942
A.J.: 2004 Honda Civic LX
Displacement: 1.7 L
Fuel type: gasoline
Transmission: manual
Curb weight: 2500 lbs
Coefficient of drag: 0.36
Frontal area: 22.5 sq.ft.
Instrumentation: ScanGauge
Description: I changed the EPA to reflect the gas mileage I typically attained before the boattail.
Build Thread:
Current Mods: December, 2008: Buy Civic off Ebay for $4800

February, 2010: Lose control in snow and slam into tree. Car out of commission until June, 2010. Replaced entire front end of car.

Summer, 2010(summer before college)-Summer, 2011:
Magnaflow catback exhaust, K&N hi-flow air filter,window tint


Start researching fluid dynamics and reading Ecomodder.


Start Project(Christmas Break):

Both mirror deletes, pizza pan hub caps, rear wheel skirts, full upper grill block, partial lower grill block, windshield wipers cover, Scangauge II, synthetic engine oil, synthetic M transmission oil, light right foot, small air dam. 42 psi gauge in all tires

edit: 3/25/12
Forgot to replace radiator cap and overheated engine. Almost blew engine in Dallas but no apparent damage done. Radiator developed a stress crack. Replaced 1 month later.

edit: 6/15/12
Added full underbelly(coroplast) and power steering delete. Start design/prototype of Kammback

edit: 7/12/12
Added Catamaran side skirts(like Basjoos) and a 3 inch air dam.

edit: 8/15/12
Car painted all black to blend in mods.

edit: 3/15/13 pizza pan wheel covers replaced with cloth/polyester resin covers to reduce weight, wheel skirts optimized to reduce frontal area and for more security(more bolts), side skirts covered in Al flashing to reduce thermal expansion/contraction, all ABS plastic painted black, flashing on bottom of air dam, rear seat back removed for more space, Kammback currently being designed

edit: 6/5/13 Air dam shortened 1 inch to reduce incline rubbing. Now 6 inches of clearance and much less contact. Both side mirrors bolted in place to end adhesive failure. Bicycle acquired 6/9/13.

edit: 7/13/13 installed kill switch, preparing for insane tank averages finally

edit: 12/31/13 Bolted on Kammback to roof and side of trunk. All mods are now complete. New rear tires.

edit: 5/25/14 Installed rear poly-carbonate window for Kammback to prevent recirculation. Rear seat reinstalled and front passenger seat removed for more space and passenger capability.

edit: 8/24/14 Finish boattail and add partial front wheel skirts

Planned Mods: redo full boat tail
Official Fuel Economy Ratings
EPA city 36 mpg(US)
EPA highway 42 mpg(US)
EPA combined 38 mpg(US)

Actual Fuel Economy Performance
Lifetime 43.26 mpg(US)
Last 3 tanks 41.63 mpg(US)
90 days 41.47 mpg(US)
View Fuel Log
Last updated: Mar 27, 2018

Trip Log
to southmayd 0 mpg (US)

(Created: 2012-01-14 20:36:08 / Modified: 2018-05-20 11:43:05)

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