Rarity- Accord V6 6MT Hypermile/Build Thread

[mcrews]

Originally Posted by Daschicken

I've decided that i'll save mileage-posting for when i have both halves of the commute, so here they ar

There is a newish thread on mounting the scangauge.
might want to review it.
IMHO, the gauge is WAY too low. Takes your eyes too far down to read it.
especially if you are pushing any of the functions while driving.

[Daschicken]

Mileage is going up! I think the undertray is doing its job, and so is the sun, its finally warming up. First trip after the undertray was 39 mpg, today's trip was 40.6 mpg!


I got stopped at a few more stoplights than usual but was still able to pull off 40 mpg, thats awesome!

[Daschicken]

Originally Posted by mcrews

There is a newish thread on mounting the scangauge.
might want to review it.
IMHO, the gauge is WAY too low. Takes your eyes too far down to read it.
especially if you are pushing any of the functions while driving.

I'll try pulling the wires out more and putting some velcro on top of the steering column next week. As is, I don't need to move my head to see it, just my eyes. It can be improved though.

[jedi_sol]

Nice work on the underbelly! Lets hope that the zip ties hold up to the abuse of daily driving.

I've had at least 3 different mounting version of undertrays on my WRX Sti..and all have fallen apart, lol.



My latest v4.0 mounting has held up well for the past 9 months of my daily 100mile commute in Los Angeles Traffic.

[Daschicken]

Tuft tested the accord yesterday, filmed with camera car and passenger after camera car footage was a letdown. Will edit out personal information when I get back home, and will post link here after.

Tested areas: Hood, windshield, front bumper before wheel, all along side of car, mirrow and areas after, rear glass, rear of car, and THE MUFFLER TIP.

The hood was actually awesome, flow stayed nice and straight without much turbulence (laminar?).
I put tufts right behind the wipers and further up the windshield. Tufts at wipers did not move, tufts further up were turbulent.
Front bumper looked good, air after wheel was turbulent. It didn't seem like air was coming up from underneath the car, so that is good.
The mirror caused some nasty turbulence, and it looked like it got worse when I folded it in. Drivers side folds in less than passenger side (untested airflow)
Air towards the rear quarter panel seemed to be going UP towards the roof. The rear glass was turbulent on the sides, and it separated in the middle ;(. I'll have to look over the footage to see if it reconnected nicely on the trunk. There is a less than optimally shaped antennae hump right before the rear glass in the middle, maybe it is causing the separation. Rear bumper did not get good footage so I don't know what was going on there, but there did seem to be attached flow on my wheel boattails. Yay!

[jedi_sol]

Originally Posted by Daschicken

Tuft tested the accord yesterday, filmed with camera car and passenger after camera car footage was a letdown. Will edit out personal information when I get back home, and will post link here after.

Tested areas: Hood, windshield, front bumper before wheel, all along side of car, mirrow and areas after, rear glass, rear of car, and THE MUFFLER TIP.

The hood was actually awesome, flow stayed nice and straight without much turbulence (laminar?).
I put tufts right behind the wipers and further up the windshield. Tufts at wipers did not move, tufts further up were turbulent.
Front bumper looked good, air after wheel was turbulent. It didn't seem like air was coming up from underneath the car, so that is good.
The mirror caused some nasty turbulence, and it looked like it got worse when I folded it in. Drivers side folds in less than passenger side (untested airflow) Fixed with a mirror delete
Air towards the rear quarter panel seemed to be going UP towards the roof. Fixed with Rear Wheel SkirtsThe rear glass was turbulent on the sides, and it separated in the middle ;( Fixed with a kammback or boattail. I'll have to look over the footage to see if it reconnected nicely on the trunk. There is a less than optimally shaped antennae hump right before the rear glass in the middle, maybe it is causing the separation. Rear bumper did not get good footage so I don't know what was going on there, but there did seem to be attached flow on my wheel boattails. Yay!

...

[Daschicken]

I am approaching the limit of parent-tolerated modding. My dad was pretty suspicious with my idea of a tuft test because it would likely mean more mods in the future. I have considered the idea of a mirror delete, Checked Georgia law and it seems legal to remove both exterior mirrors. I may go through with it eventually, but would need some interior mirrors to replace them. Rear wheel skirts and kammback are most likely outside of parental acceptance. I want to try out clear tape wheel covers though, and see if they help.

[Daschicken]

Sorry for the crappy focus, apparently iphone cameras can't focus on the fly. Watch to the end for some naughty fuel consumption.

Scangauge relocated to instrument cluster.

[jedi_sol]

Originally Posted by Daschicken

I am approaching the limit of parent-tolerated modding.

I know how you feel. My fiance wouldn't let me go crazy with aero mods on my Sti, however, she agreed that if i made the mods look "presentable," then she'd allow it.

However, to make mods look presentable takes a lot of time, effort, and money, which reduces your return on investment. At which point, ecomodding becomes more of a hobby instead of a way to save money.

So it's up to you, i guess.

[Daschicken]

Decided to get off my lazy butt and rig up a mid tray today. I took out my brand new sheet of coroplast, and out popped one of my old mid trays for my previous accord! I thought I had used it already! Slapped that on with some screws and velcro. Made the other side and attached it as well. I overlapped the mid tray with the front tray so the airflow is more smooth there, and air does not go in between them. Sealed off a gap at the wheel wells that would have ducted air in between the floor and the mid pan. Here it is!



I also cut out a piece of posterboard(thick paper) to stuff in between the front bumper and radiator. It should prevent air from going underneath the radiator.


Took it for a drive after the mid trays were put on and noticed two things: 1. It didn't catch on fire. 2. IT COASTED BETTER! WOOHOO!

I wanted to make a rear pan as well, but couldn't lift the back to a workable height so I gave up for now. Instead I extended my rear diffuser. It will help to compare it to the picture of when I got it back on page 3(?) so you can see where I added material.