2018-08-28 112.47 1.32 85.2 "cheap eBay headers, extension exhaust pipe enlarged from 1.75 to 2.25 diameter, lighter wheels, low rolling resistance tires OEM standard size."
2018-09-01 127.32 5.02 25.36 ""
2018-09-01 112.47 2.75 40.9 ""
2018-09-12 170.81 5.59 30.56 ""
2018-09-20 188.03 6.64 28.32 "Annual hilly area trip"
2018-09-25 177.15 5.57 31.8 ""
2018-09-28 47.35 1.68 28.18 ""
2018-10-16 341.44 7.17 47.62 ""
2018-10-30 121.79 5.82 20.93 ""
2018-11-06 185.79 5.31 34.99 "Last fill before the car goes to storage for the winter"
2019-05-06 428.25 8.36 51.23 "Out of winter storage: Intake manifold ports polished, throttle body polished, air intake mouth moved to front dead zone, smooth air tube between air box and throttle body instead of rubber corrugated unit, air conditioner controlled by throttle demand (Julian Edgar), cabin air conditioner thermostat bypass to automatically limit temperature"
2019-05-17 202.75 7.54 26.89 ""
2019-05-22 307.21 8.2 37.46 "Lawn edging air dam installed. Vinyl building board used to fabricate side skirts."
2019-05-27 288.75 6.78 42.59 ""
2019-06-01 129.74 3.51 36.96 ""
2019-06-01 111.85 2.27 49.27 ""
2019-06-08 218.91 6.5 33.68 "117 km/h average speed"
2019-06-13 192.69 5.48 35.16 "Hilly area trip up and down from sea level to about 2500 feet with no excess load."
2019-06-27 309.5 5.87 52.73 "New front spoiler under the bumper cover. Probably acts as an air dam in front of the wheels and block air from going under the car. The spoiler is sloped up at about 45 degrees like newer Toyota Corolla, Camry and else. My intent is also do direct air to the intake mouth located at the front of the car."
2019-06-28 89.3 1.83 48.8 ""
2019-07-16 268.62 7.33 36.65 ""
2019-07-27 78.54 4.83 16.26 ""
2019-07-28 324.73 6.55 49.58 "AERO: rear under belly diffuser from the wheels back, rear trunk lid low profile spoiler from 8th gen Civic model, custom front diffuser allowing for front wheel deflectors."
2019-08-16 175.85 6.1 28.83 "City driving"
2019-08-18 285.33 7.73 36.91 ""
2019-08-20 115.82 4.16 27.84 ""
2019-09-01 63.81 2.96 21.56 ""
2019-09-03 294.03 7.7 38.19 ""
2019-09-18 119.3 4.23 28.2 "Hilly area trip up and down from sea level to about 2500 feet with excess load of at least 110 Kg (250 lbs)"
2019-09-26 180.51 5.43 33.24 ""
2019-10-07 421.54 8.84 47.69 ""
2019-10-25 87.61 4.49 19.51 ""
2019-10-26 248.92 6.37 39.08 ""
2019-11-11 344.74 9.86 34.96 ""
2019-11-18 144.34 4.89 29.52 ""
2020-05-18 61.89 2.39 25.9 "Out of the garage for 2020 summer: Maintenance: oil & filter change 0W20, disc brakes lubrication, front disc brakes flexible hoses replacement, front hard brake lines partly replaced, tires rotation. Lots of engine idling and car moving around and road testing of repairs. AERO: full belly pan but some room for the engine heat to leave under the car and the exhaust system; upper grille block (invisible), side skirts, rear wheel deflectors (in front of wheel).Mileage testing: tires at 45 psi, headwinds half way at 40 km sustained.

Before test, gas tank fill up not to filler tube mouth; after test fill up same gas pump but car tank filled to the mouth. 1 to 2 litres of gas may be due to difference in filling method (then more like 7 L/100 Km). To lower variance from tank fills will now always fill to tank tube mouth."
2020-05-20 145.15 1.33 109.14 "Low tail winds and only one way; gas tank filled up to mouth before and after. AERO : tires pumped up à 45 psi, SPECIAL ADD-ON: mock up wheel covers (3 out of 4 lost for shoddy fixing work)"
2020-05-22 56.92 1.15 49.5 "Mileage testing 2 way drive: tires pumped up at 45 psi"
2020-05-28 200.7 5.57 36.03 ""
2020-05-31 367.11 10.76 34.12 "Tire pressure at 32 psi (OEM spec), front windshield left and right gutters smoothed; some 55 km city driving, 20 Km head wind one way 230 km, speed average over 115 km/h; 60 km country driving varied speed, back home way 230 Km in heavy rain, side winds, water running on pavement with strong aquaplaning risk, varied speed around 100 Km/h."
2020-06-01 332.81 8.05 41.34 "Tire pressure at 32 PSI - 2 way trip - 3/4 head wind, speed average in excess of 110 Km/h"
2020-06-03 143.85 2.48 58 ""
2020-06-13 280.24 7.09 39.53 "Not normal driving. Many tests including frequent accelerations, speed in excess or around 120 Km/h, throttle blocked tests. Some city driving."
2020-06-20 124.27 5.02 24.75 "lots of aerodynamics trials with the throttle stop method from Julian Edgar. Many loop drives with heavy accelerations to merge in highway traffic."
2020-06-25 143.47 4.14 34.65 "Some testing but mostly running errands, wheel covers removed until better securing method"
2020-06-26 215.12 5.79 37.15 "Mainly highway driving against headwind. Speed around 100 km/h on cruise control with occasional acceleration to pass in traffic, wheel covers removed until better securing method, extra load of 120 Kg (250 lbs) and continuous use of air conditioner as outside temperature is at 28 C, in excess of 82 F under bright shining sun."
2020-07-04 268.43 6.98 38.46 "Running errands, some throttle stop testing on highway, some dust tests on gravel road"
2020-07-09 222.58 6.2 35.9 "Lots of dust testing for separation edges and throttle stop testing to build database related to modifications, also had to reset the ECU twice because of some irregular RPM (disconnect battery): fuel economy not as good as should be while ECU relearns its curves."
2020-07-16 330.13 8.56 38.57 "Highway drive go-return with 125 kg extra load - Go leg: Go Leg: 27-29 C, 35 Km/h North-West -
Return leg: 24 C, E 9 Km/h, 65 % H.R., 102,30 KPa - cross wind both legs"
2020-07-20 130.49 3.64 35.85 "Test, test and test: short drives with frequent accelerations."
2020-07-22 167.15 4.36 38.34 "Mountain roads:Hilly area trip up and down from sea level to about 2500 feet no excess load."
2020-08-02 305.71 8.45 36.18 "Some city and traffic lights, some low speed country road, load greater than usual by 300 lbs, lots of tests with frequent accelerations"
2020-08-22 242.96 8.98 27.06 "Knock sensor and fuel filter defectives: car sputters and hesitates. Probably a situation where the fuel economy is not that good."
2020-08-27 117.44 2.89 40.64 "Knock sensor and fuel filter still defective. Some city driving but more highway driving."
2020-08-31 353.19 7.82 45.16 "Highway driving, North East tail wind 13 -21 Km/h, new gas filter and knock sensor installed that required the ECM reset and return to the factory consumption table (negative battery pole unplug while installing the Knock sensor and fuel filter). The ECM has to relearn by ""experience"" the driver usual table for fuel injection."
2020-09-01 163.17 5.81 28.08 "Highway drive about 100 km/h, tail wind 10-13 km/h. Mileage should have been better but the ECU (ECM) has been reset less than 500 km away. It takes time for ECU to relearn, adjust and close in to the driving conditions. Hope next fill is clearly better. Car is in the same shape, state and load than the previous fill that got 5,21 L/100 Km."
2020-09-09 122.04 2.29 53.29 "Finally! Wheels aligned today after the 4 struts. Various drives: some city driving, some highway driving, some country road. Encouraging result"
2020-09-27 219.28 6.12 35.83 "Filled up to the gas cap before and after. About 150 km on country winding roads and various speed limits. The rest, about 200 Km on highway at 100 Km/h average. All the season mods in effect including wheel covers but for one lost (bad epoxy bond though)."
2020-10-16 256.75 6.44 39.87 "Large part with 4 wheel covers."
2020-11-11 386.62 6.84 56.52 "Yeah! New wheel covers ""covering"" the 4 alloy wheels. Also, grille blocking added to maintain engine coolant temperature between 92 and 98 Celsius as outside temperature is below 18 Celsius. Mostly highway driving and the nut behind the steering wheel was under control."
2020-11-30 196.04 4.37 44.86 "Last fill for 2020. The car goes in storage for the winter. Wheel covers. Mostly highway and some country road driving."
2022-04-13 147.89 4.23 $1.695 34.96 "2022 season start: 0w20 motor oil, new 195-70R15 tires, 34 psi. average speed 102 km/h. New undertray under the front end (aluminum). Atmospheric pressure 101,2-101,3 Kpa, temperature 16 C, wind 17 Km/h from west, back sideways. Engine warm-up included on this tank to prepare for oil change. Car loaded with various stuff, books and tools. Engine running while waiting in line at Costco to fill up. Filled to the mouth."
2022-04-15 190.89 5.28 36.15 "135 lbs passenger onboard. Facing wind 25 kph and gusts 45+kph. Engine misfires and CEL. 100 kph average speed on cruise control."
2022-04-15 120.92 2.87 42.13 "Average speed 90 kph tail wind 25 kph and gusts 45 kph, driver 135 lbs instead of regular 190 lbs but cargo 40 lbs."
2022-04-28 328.27 9.02 36.39 "Wheel covers removed, mock-up belly pan coroplast, 5 to 7 degree Celsius, strong side wind gusts, average speed 100 KPH, oversize diameter tires inflated 40 PSI."