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Old 11-16-2009, 01:00 AM   #21 (permalink)
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Ryanrpm's Tundra - '05 Toyota Tundra Limited, Double Cab, 4x4
90 day: 17.59 mpg (US)

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The indexing of them probably does more for improved combustion than does the drilled hole. But the purpose of indexing them is to get the open area of the spark plug facing the fuel mixture, and not the ground strap.

Drilling the hole allows the spark to travel through the hole and act like a pencil torch in the combustion chamber. See this link for details...

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Old 11-17-2009, 08:10 AM   #22 (permalink)
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Big Truck - just curious how your other mods are doing? For sure the aero improvements are worthwhile but the biggest contributor is slowing down. When I slowed down just a bit (as you did) it was amazing how much more relaxed I became. If everyone left 5 minutes earlier for their outings and slowed down a wee bit I think we'd see less idiotic behavior on the roads with lower stress levels everywhere.
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Old 11-23-2009, 02:43 PM   #23 (permalink)
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oldscoob - '87 subaru wagon gl/dr
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460 cubic inch. I haven;t seen that since a 1976 ford ltd wagon. Crazy.
then to realize a small block with 10mpg is not only more fun, it does the same job....and then...oh no..the big bad deisel with fuel mileage of a four banger torquing its way with 10000 pounds to talk about.

that engine is done. give up the mods, park it and talk about it like the good ol' days. That is the best ecomod ever for that one...

I started off thinking no replacement for displacement, until I encountered a 3 man boxer engine...who is giggling now?
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Old 11-23-2009, 03:34 PM   #24 (permalink)
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Draco - '89 Ford F150 ext cab shrt bed XLT Lariat
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My Engine Off Coasting is usually 1/3 of my total distance traveled. The way I see it the engine has 1 purpose, Moving the vehicle forward if it isnt doing that It shouldn't be using any gas, so I turn it off.

Thanks to EOC I got 41 mpg on the last trip I took







ok ok it was only 1.66 miles But I coasted .78 miles

Earlier today on a 50+ mile trip I hit 31.42 mpg there and back. 25-55mph
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Old 12-07-2009, 09:24 PM   #25 (permalink)
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Cherokee - '88 Jeep Cherokee
90 day: 19.44 mpg (US)

Ryo-Ohki - '94 Geo Metro Xfi
90 day: 50.15 mpg (US)

Vger 2 - '00 Plymouth Grand Voyager SE

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the main issue with buying a second car is the DISPOSITION of the money needed.

sure a TDI would save me its own cost in fuel over say my cherokee in 1.5 years. (assuming $5000 for the TDI)

Here is the problem. the $5000 for the jeep would NOT BE $5000 at all EVER.

it would be $64 a WEEK. starting to see the difference now?

while the NEW CAR would be $5000 RIGHT NOW. $140 RIGHT NOW (registration title etc..) $300 RIGHT NOW for insurance (and this is for me with very low insurance) and another $85 RIGHT NOW for inspection PLUS if it needs anything to pass inspection.

See what I mean? $5000 is NOT $5000 in this equation. ONE is $5000 right NOW the other is $64 a week for 18 months.

this is the CORE problem people with SUV's and Trucks who do not want them are STUCK WITH THEM. no matter how you play with the numbers the SUV is always CHEAPER because you don't have to pay 100% right now.

Unless you get lucky. I got super lucky. Found a metro for $600 and even that was beyond my means THANK GOD he was willing to take payments! 6 weeks later I had it. put $400 into it over a month (thankfully the cops left me alone past the 10 day mark) and now I am golden. by JANUARY 22 or so the car will have FULLY paid for itself including tax title registration and repairs.

Still would not have matter for spit if he did not take payments as I simply did not have $600 to buy it. ($753 actually with tax and tags etc..)

I have been trying for 3 years now at least to get my hands on a metro.

$700 cars are not $700 cars 99% of the time. you also need the cash to fix them as almost always they need something. If you can do the work yourself MAJOR BONUS.

GREAT JOB so far man on the improvements!! really impressive. Amazing what driving style does ehh?

CoastRider WOW man F150 at 31mpg is astounding!

sadly I can not coast my Cherokee. its an auto and it takes FAR FAR too long to reboot a cherokee. my metro starts in under one second. I stopped EOC'ing until I get a kill switch though. Don't want to rape my ignition or ECU.

whats an acquatune?
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Old 12-08-2009, 09:28 PM   #26 (permalink)
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An Aquatune is a water injection/hydrogen injection device.

See their website for more info...
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Old 12-10-2009, 12:50 PM   #27 (permalink)
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Quote:
Originally Posted by Ryanrpm View Post
An Aquatune is a water injection/hydrogen injection device.

See their website for more info...
Hydrogen injection devices have been shown to gain their efficiency at the cost of robbing your 12VDC Battery/Alternator for power. Ultimately you will just wind up draining your battery faster. Save your money folks.

I have made similar posts about this in the past here and on other forums. Water injection is a waste of money, compared to just running without an alternator and installing extra batteries.
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Old 12-10-2009, 01:03 PM   #28 (permalink)
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Quote:
Originally Posted by Ryanrpm View Post
An Aquatune is a water injection/hydrogen injection device.
That device lost credibility for me with the mention of "hydrogen injection". You can't separate the hydrogen and oxygen bond in water for less energy than it takes to create that bond.
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Old 12-10-2009, 01:17 PM   #29 (permalink)
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90 day: 50.15 mpg (US)

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I agree with you that the aquatune is likely snake oil. but the statement that you can not sperate the H and O for less energy than it takes to create that bond is patently stupid. ie a DUH statement. its called entrophy.

little hint. IT ALSO takes more energy to MAKE gasoline than you will EVER be able to extract from it.
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Old 12-10-2009, 01:21 PM   #30 (permalink)
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Water injection itself is not the snake oil here. It's the 'hydrogen injection'.

Also, the word is "entropy", not "entrophy".

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