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General Fuel Economy Discussion Ask the gas gurus about increasing fuel economy. Post ideas and ask for advice. For testing help, use the "Experiments" forum.

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Old 05-12-2006, 11:07 AM   #1
95metro
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What mods/fixes are you planning?

Anyone care to share what are in the future plans for your vehicle(s)? Just list anything - common repairs and/or modifications.

I'm mostly posting so I can make a list for myself :lol:

- Tune up/fluids change/lube
- Brakes (all four wheels)
- Onboard diagnostic system (building it this weekend)
- Body work/rust removal
- Exhaust replacement
- Engine rebuild (maybe next year)
- Grill blocking/air deflectors
- Debating with myself about wheel skirts, but I do have some drawn up
- RWED (Rear-Wheel-Electric-Drive)...need to find an old Chevette/Acadian to experiment on
- Turbo (low boost - mostly to run a generator)
- Lightweight rims
- Smaller and/or lightweight gas tank

I'm certain that I'll think of more stuff as I go.
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Old 05-12-2006, 03:29 PM   #2
SVOboy
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I've been thinking of

I've been thinking of posting this list myself, too lazy.

-Driver side CV boot torn
-Change oil
-Plug wires
-CX exhaust
-HAI
-Manual
-d15b8
-Finish the interior up
-Do something with the back
-Finish painting my rimzzz
-Rear skirts
-Block up the front
-Fix my light buzzer
-Wire the fuse box crap up properly
-Rear sway bar
-Rear camber
-Front camber damn kit stuff
-Final drop
-Align it at the shop
-Have Wes weld me some extended top hats
-Brakes esp. drums in back
-Kill that little rust from the dent
-Lightweight flywheel
-HF gas tank
-EGR
-Clean up my d15b8
-Paint my valve cover
-Replace front rotors
-Paint trim
-All lights LED

Done:

-<A href=http://www.gassavers.org/forum_topic/diy_supermid_m_1_mpg_computer_installation.html target=_blank>SuperMID</a>

This'll be my do **** area, if I do some ****, I'll put it in done and link to it, and add when I remember crap that's wrong or needing done.
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Old 05-12-2006, 03:56 PM   #3
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Re: I've been thinking of

Quote:
Originally Posted by SVOboy
This'll be my do **** area, if I do some ****, I'll put it in done and link to it, and add when I remember crap that's wrong or needing done.
Good plan...we'll all push each other to get stuff done.

HAI...intake, that's right, I have to modify my intake...
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Old 05-12-2006, 04:40 PM   #4
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Re: What mods/fixes are you planning?

Quote:
Originally Posted by 95metro
Anyone care to share what are in the future plans for your vehicle(s)? Just list anything - common repairs and/or modifications.

I'm mostly posting so I can make a list for myself :lol:

- Tune up/fluids change/lube
- Brakes (all four wheels)
- Onboard diagnostic system (building it this weekend)
- Body work/rust removal
- Exhaust replacement
- Engine rebuild (maybe next year)
- Grill blocking/air deflectors
- Debating with myself about wheel skirts, but I do have some drawn up
- RWED (Rear-Wheel-Electric-Drive)...need to find an old Chevette/Acadian to experiment on
- Turbo (low boost - mostly to run a generator)
- Lightweight rims
- Smaller and/or lightweight gas tank

I'm certain that I'll think of more stuff as I go.
We've been trying to figure out the effect of free-flow exhaust vs. a more restrictive one. I think your car may be a good experiment since it has a straight pipe. If you do the exhaust on a separate tank, could you report the results on economy? I'm curious. Thanks!
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Old 05-12-2006, 04:49 PM   #5
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No problem...that's been my

No problem...that's been my plan all along actually. There may be some temperature variance involved, but I will fill up just before I do the exhaust and see what kind of difference I find after.

Sorry that my gaslog on this site is not complete at all - I've just been too lazy to repost all the data here. I have a pdf version on my car's website:

http://www3.telus.net/metro/log/jan2106.htm

We should be able to extrapolate the straight-pipe vs. exhaust figures pretty easily.

I have to save up for the exhaust since I want a brand new OEM replacement. Should be able to do it in July or August I think.
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Old 05-12-2006, 04:52 PM   #6
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So you're putting the same

So you're putting the same exhaust on?
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Old 05-12-2006, 04:56 PM   #7
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Re: So you're putting the same

Quote:
Originally Posted by SVOboy
So you're putting the same exhaust on?
What is currently on is the original 11-year-old cat, solid pipe, and a rusted out resonator tip. Ugly as hell and buzzes like mad.

I'm going to replace the entire system with an OEM Walker replacement exhaust - cat, resonator, muffler.
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Old 05-12-2006, 04:59 PM   #8
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Boo, Just kidding. Take it

Boo,

Just kidding. Take it to my shop and we'll get you a deal.
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Old 05-12-2006, 05:02 PM   #9
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Re: Boo, Just kidding. Take it

Boo to the Walker exhaust or the OEM setup? :lol:
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Old 05-12-2006, 05:42 PM   #10
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OEM Since we're all

OEM

Since we're all wondering about exhaust mods OEM is kinda boring.
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Old 05-12-2006, 05:49 PM   #11
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Re: OEMSince we're all

Quote:
Originally Posted by SVOboy
OEM is kinda boring.
But it's a Metro...how exciting can it get? I'd have to mod WAY more than the exhaust and then lose all my great mpg. :shocked:

Besides, picture a stock Metro with a 4" exhaust... :lol:
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Old 05-12-2006, 06:17 PM   #12
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I'm not talking bigger, I'm

I'm not talking bigger, I'm talking anything. I dunno if bigger or smaller or lots of bends or what does anything to MPG, no one really does.
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Old 05-12-2006, 06:25 PM   #13
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Well, we know that a plugged

Well, we know that a plugged exhaust would be bad for the car, FE, and for emissions.

A large exhaust allows free flow at high rpm, but high rpm is generally bad for FE and burning more fuel obviously bad for emissions.

A little backpressure is good for low rpm torque - good for pulling away from a dead stop.

The OEM setup is sort of the ultimate balance between FE, performance, and emissions control from what I understand.

An exhaust test for FE would be, pardon the pun, a fairly exhausting experience I think.
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Old 05-12-2006, 06:52 PM   #14
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There have been a few

There have been a few serious mpg people to claim a 2 or 2.25 pipe up from a 1.23 or 1.5 to increase FE.
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Old 05-12-2006, 08:38 PM   #15
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i'm afraid to start a list

i'm afraid to start a list of planned mods. i don't want to get carried away. but let's start with this:

- get the deep-cycle battery in the car before i damage my starting battery with the alternator-optional mod

- finish permanent grille block

- belly pan experiment/permanent belly pan

- clean up my kill-switch installation. it's duct-taped to my shifter and the 80F temps a couple of days this week had the inside of the car cooking - the adhesive got gummy and the switch nearly fell off.
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Old 05-12-2006, 09:22 PM   #16
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Re: I've been thinking of

Quote:
Originally Posted by 95metro
Good plan...we'll all push each other to get stuff done.
SVO has already told me to "get off my old lady" and get on my 5-speed conversion. Perhaps I'll do that in the next few weeks.
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Old 05-12-2006, 09:42 PM   #17
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lets see... -wheel

lets see...

-wheel allignment/balancing
-Get a hotter HAI
-rear sturts
-GET A DIFFERENT CAR (my tranny has been slipping and is starting to scare me)
-coroplast underbelly at the rear
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Old 05-12-2006, 10:27 PM   #18
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Quote:SVO has already told

Quote:
SVO has already told me to "get off my old lady" and get on my 5-speed conversion. Perhaps I'll do that in the next few weeks.
It'll be a race. Hopefully I can do mine at the shop after hours,
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Old 05-12-2006, 10:41 PM   #19
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The "List"

Well, to achieve 40 mpg in the Automatic:

-Grille and partial engine bay / undercarriage block (not entirely for aero, but to trap heat mostly)
-New tires when these get down to near-zero tread, or when I scare the crap out of myself on a rainy roadway (thinking Michelin Harmony)
-Perfecting the driving style and coasting
-Maybe some aero mods, but my FE losses are the most in city driving
-Wait until this car wears-out and get a much more efficient one (could be years...stay tuned)
-Advanced: A controlled split cold or hot air intake system for emergency power on-demand or autocross
-For the TL: fix the CAT, trick the ECU or sell it (sorry :-()
-Buy a "ForkenSwift" from The MetroMPG Company ;-)

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Old 05-14-2006, 11:08 AM   #20
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Re: What mods/fixes are you planning?

Quote:
Originally Posted by 95metro
- RWED (Rear-Wheel-Electric-Drive)...need to find an old Chevette/Acadian to experiment on
Horah for the chevette, I have 3.
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Old 05-14-2006, 11:13 AM   #21
SVOboy
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Edited my list to include my

Edited my list to include my MID DIY, this list certainly is nice, I wish it were somewhere more convienent. *shrug*
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Old 05-15-2006, 11:29 AM   #22
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Re: What mods/fixes are you planning?

Quote:
Originally Posted by nathan
Horah for the chevette, I have 3.
Aaah! I'm jealous! Can I have one?

Seriously though, I may be contacting you and asking for some vehicle measurements and such one of these days. I have this crazy idea about transplanting the RWD from a Chevette into the Metro for low-speed EV power.

On a different note I built an OBD1 to computer interface cable on the weekend. Still have to test it to make certain I don't fry anything though.
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Old 05-16-2006, 06:22 PM   #23
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Re: What mods/fixes are you planning?

Quote:
Originally Posted by 95metro

Aaah! I'm jealous! Can I have one?

Seriously though, I may be contacting you and asking for some vehicle measurements and such one of these days. I have this crazy idea about transplanting the RWD from a Chevette into the Metro for low-speed EV power.
Id be happy to help in any way i can
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Old 05-16-2006, 07:22 PM   #24
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DX to CX tranny swap.

DX to CX tranny swap. Hopefully I can get SVOboy to stop by soon and help me install it. Actually, I would be handing him wrenches and lemonade while he installs it.
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Old 05-16-2006, 07:55 PM   #25
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Quote:DX to CX tranny swap.

Quote:
DX to CX tranny swap. Hopefully I can get SVOboy to stop by soon and help me install it. Actually, I would be handing him wrenches and lemonade while he installs it.
You can always come here, , that sure would make it quicker, at least.
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Old 05-16-2006, 08:05 PM   #26
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After the Tour De Sol, my

After the Tour De Sol, my wife informed me that I have already spent enough time gallivanting around the country for awhile. I would have to get permission from her to drive clear across tarnation to NJ. And then, if something went wrong and I needed to wait a few days to get a critical part, well I would be in a world of hurt.

Looks like you coming here would be easier. But we will just have to see about that. It seems like not a day goes by when I try to shift from third to fifth, but I am bummed when I figure out that I am already in fifth.
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Old 05-16-2006, 08:07 PM   #27
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Haha, shifting, I miss

Haha, shifting, I miss that.

I had to drive a jeep at the shop today that was stick and the dog stench was so disorienting I missed the park brake light and killed it, I was made fun of.
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Old 05-17-2006, 01:50 AM   #28
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maybe when i decide on a

maybe when i decide on a tool kit and a thing to lift your car off the ground I can do my first oil change!

but i heard changing the manual tranny fluid is tough hmmmmmm i really want to put the synthetic fluids and see the boost!!!
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Old 05-17-2006, 07:14 AM   #29
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Manual trannyu fluid

Manual trannyu fluid shouldn't be hard. Just get a good long funnel. I did my friend's auto with you car and all I needed to complete the easiness was a big *** funnel (2 foot long or so).
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Old 05-17-2006, 11:27 AM   #30
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Re: Manual trannyu fluid

Quote:
Originally Posted by SVOboy
Manual trannyu fluid shouldn't be hard. Just get a good long funnel. I did my friend's auto with you car and all I needed to complete the easiness was a big *** funnel (2 foot long or so).
I just used a regular funnel with 3/8" fuel hose attached to the end. Luckily I used 0W-20 because it took 1/2 hr to get the 2 quarts in. It might take hours for 30W.
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