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Owner: Talos Woten
Champrius v3.2: 2009 Toyota Prius
Displacement: 1.5 L
Fuel type: gas/electric hybrid
Transmission: CVT
Curb weight: 2932 lbs
Coefficient of drag: 0.26
Frontal area: 23.7836 sq.ft.
Instrumentation: Torque app
Description: Old Prius given new life and 66 mpg
Build Thread: 66 mpg 2009 Totoya Prius, Champrius 4.0 Under Construction now
Current Mods: DELETE: +% mpg gain [cost, time]
1.5% Rear and Passenger seats [$10, 2 hrs]
1.0% ~1/3 of the interior, spare wheel, jack, etc. [$10, 4 hrs]
1.0% Antenna [$0, 1 hr]
1.0% Rear Windshield Wipers [$10, 2 hrs]
0.5% Rear spoiler [$0, 2 hrs]

REPLACE:
4.0% Tiny side mirrors, added vortex generators [$40, 4 hrs]
3.5% Smooth moon hubcaps from pizza pans [$100, 6 hrs]
2.0% Low rolling resistance tires [$400/80k, 2 hrs]
0.0% Max tire pressure 44 psi [$0, 10 min] (safer to say we lose FE for underinflated)
0.5%+ Hood insulation (better colder / short trips) [$50, 2 hrs]
0.5% Gas Cap, Radiator Cap [$30/100k, 20 mins]
0.5% Air Filter [$20/30k, 15 mins]
0.5% Synthetic oil [$80/10k, 2 hrs] with oil catch can [$40, 4 hrs]
0.?% LED lighting (inside, headlights, etc.) [$70, 2 hrs]

ADD:
15.0% Full 42" boat tail with tail box [$450+, 18 hrs]
3.0% Windshield wiper deflectors [$40, 2 hrs]
3.0% Dual Cat Shields [$300, 8 hrs]
2.5% Wheel fairings (partial skirts for easy maintenance) [$50, 4 hrs]
2.5% Mid pan [$50, 8 hrs] + Rear Diffuser [$75, 6 hrs]
0.0% Shrouded ceiling vent + signal booster [$200, 4 hrs]
0.0% Solar Panel as partial Kammback (superceded by tail) [$500, 6 hrs]

NOTE:
This is my camping vehicle, so when loaded it has +900 lbs of batteries, bed, fridge with food, camping gear, etc. All real world mpg figures include that.

Planned Mods: REPLACE:
Nose with radiator ducting
Air curtains, integrate with wheel fairings
4.0% Tuneup [$600/100k, 4 hrs]

ADD:
Engine Splash Shield
Official Fuel Economy Ratings
EPA city 48 mpg(US)
EPA highway 45 mpg(US)
EPA combined 46 mpg(US)

Actual Fuel Economy Performance
Lifetime 58.73 mpg(US)
Last 3 tanks 58.73 mpg(US)
90 days 58.73 mpg(US)
View Fuel Log
Last updated: Mar 25, 2022

(Created: 2022-06-07 10:40:42 / Modified: 2022-07-06 14:55:24)


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