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Owner: mpg_numbers_guy
Insight: 2006 Honda Insight MT
Displacement: 1 L
Fuel type: gas/electric hybrid
Transmission: manual
Curb weight: 1881 lbs
Coefficient of drag: 0.25
Frontal area: 20 sq.ft.
Description: IMA battery completely deleted, gasoline only. Current weight is right around 1800lbs.

Bought with 254K miles for $1500. Mechanically perfect. 99% rust free for being a Michigan car. 1 owner except for the guy I bought it from owned it for 1 week and didn't like it. Has none of the common issues with Insights - no oil leak, no transmission grind, no wet seatbelt issue, almost no rust, rear hatch works, power locks and windows work. Body needed a little bit of work - a little bit of the paint in some areas was scuffed and needed retouching (mostly fixed). Driver's mirror was bondoed on (since removed). Front pumper is pitted and I am hoping to repaint or replace it eventually (partially touched up).

254,800 - valves adjusted, new 12V battery installed
255,000 - ground straps replaced
255,500 - brighter reverse LEDs installed
256,000 - panoramic rear view mirror installed
256,100 - passenger mirror deleted
256,200 - smaller driver's side mirror installed
256,300 - license plate light replaced with LED
256,400 - Regen switch wired up and rear belly pan installed
256,500 - Car detailed and paint touched up
256,600 - Scott's belly pan installed
257,500 - LED brake lights & running lights installed
258,500 - Oil and filter changed, front-mid belly pan installed (connects Scott's to mid area panels), LED headlights installed, custom center armrest & console installed
259,300 - WHITE/GREEN wire on DC-DC cut to keep 12V fully charged
260,500 - Added additional underbody paneling to the rear of the car
260,900 - Fixed rear hatch not locking, replaced front speakers with Polk DB652s, and replaced upstream catalytic converter and all surrounding hardware.
261,700 - Deleted IMA battery along with computers and wiring. Bypassed starter relay.
261,900 - Deleted DC-DC converter, MDM, and heat sink. Replaced with Meanwell HRP-600-15 pseudo-alternator
263,400 - Replaced driver's side parking brake lever and cable, and installed 8" subwoofer.
264,000 - LED flasher relay and LED turn signals installed.
264,200 - Finished rebuilding rear post-IMA delete.
264,300 - Oil and filter changed, tires rotated

Best full tank: 93.39 MPG (882.2 miles, filled on 8/9/2019).
Best partial tank *: 111.87 MPG (178.6 miles, filled on 7/24/2019). **
Best long trip (>100 miles): 98.4 MPG (128.0 miles, 8/16/2019).
Best short trip on level ground (<100 miles): 128.5 MPG (6.5 miles, 8/3/2019).

* Partial tanks are full tank fill ups, but mileage does not include pizza delivery driving, which is logged separately.
** This complete tank was 918.7 miles at 92.12 MPG.
Build Thread: 2006 Honda Insight MT Build Thread
Current Mods: Fuel Economy:
  • Bridgestone Potenzas @ 80 PSI.
  • Lower grille block
  • Hot air intake w/ intake resonator deleted
  • Rear wiper and motor delete w/ plug, -3lbs (link to buy)
  • Passenger mirror delete, -3lbs
  • Smaller driver's side mirror, -2lbs
  • Scott's belly pan (link to buy)
  • Coroplast front-to-mid belly pan (connects Scott's to mid area panels)
  • Coroplast rear belly pans
  • Brake reduction clips (link to buy)
  • K&N air filter
  • Full synthetic oil (0w20, Honda recommended)
  • IMA deleted along with computers and wiring, -72lbs
  • Arduino bypass for off road use only. Lean burn code used with leanburnminactivationspeed set to 27 (22 mph)
  • DC-DC converter deleted along with MDM and heat sink, -32lbs
  • Meanwell HRP-600-15 PSU pseudo-alternator and hardware, +4lbs
  • SQL 100A Amp 3 Phase Diode Metal Case Bridge Rectifier (link to buy)
  • Aluminum bar from IMA compartment repurposed as a heat sink for the Meanwell PSU.
  • Bypassed starter relay for instant 12v starting
  • Two (2) Scythe Kaze Flex Sealed Precision FBD 120mm fans as intake and exhaust fans for the Meanwell compartment (89.3 CFM, 2000 RPM fixed, 38 dbA) (link to buy)
  • Honeycomb fan grilles to protect Meanwell compartment cooling fans (link to buy)
  • Switch to manually control operation of Meanwell compartment cooling fans
  • LED flasher relay for LED turn signals (link to buy)
Comfort & Convenience
  • Rubber floor mats, +3lbs
  • Panoramic rear view mirror, removes blind spots (link to buy)
  • Paint touched up with OEM Honda Rally Red (Civic SI coupe OEM color). Very close match to the Insight's New Formula Red
  • Ecomodder window sticker
  • Modified center console from 6th gen Civic w/ custom armrest
  • Replaced front speakers with Polk DB652s, +2lbs
  • Shift knob from 8th gen Civic (2006-2011)
  • Rockville RW8CA 8" 600 Watts Peak 150 Watts RMS Under-Seat Slim Amplified Car Subwoofer (link to buy)
  • 1" rear and 1/2" front seat risers
  • Rear speakers delete with rear rebuild
  • Rear rebuilt for more storage space after IMA delete
  • Rear carpet done with near-perfect matching Medium Dark Pewter Superflex Ozite Automotive Carpet
Lighting:Instrumentation (besides factory):
  • Scangauge II (curtesy of Ecomodder & Linear Logic: Ecomodder 11th Anniversary Contest)
  • Torque Lite app as an altimeter (hypermiling tool for hilly and mountainous driving)

Planned Mods: Comfort & Convenience
  • Redo mirror deletes with aluminum
  • S2000 e-brake handle
  • Steering wheel from 8th gen Civic (2006-2011)
  • Polk DB652 rear speakers in custom boxes
  • Interior LED lighting


Future Mod Ideas
  • 12V Battery & Charging Mod:
    • Two 20ah deep cycle batteries in parallel
    • Kill switch to manually control Meanwell PSU operation
    • Solar trickle charger for batteries
    Idea is to use one battery for alternator-less driving while charging the other one via solar. Meanwell PSU would operate as necessary to keep batteries charged during higher operation demands.
  • Insight space saver rims powdercoated and mounted on my next set of RE92s.
Official Fuel Economy Ratings
EPA city 48 mpg(US)
EPA highway 58 mpg(US)
EPA combined 52 mpg(US)

Actual Fuel Economy Performance
Lifetime 84.81 mpg(US)
Last 3 tanks 97.46 mpg(US)
90 days 99.33 mpg(US)
View Fuel Log
Last updated: Aug 17, 2019

(Created: 2018-11-22 15:18:42 / Modified: 2019-08-17 16:46:01)

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