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Old 03-24-2008, 12:51 PM   #1 (permalink)
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Question Natural Gas Tacoma????

Has anyone looked into converting their truck to natural gas. Pro/Cons? I was just looking on the internet and it look like you can get a 6 cylinder conversion kit for around 2k. Any thoughts? I'm just curious as to what everyone else thinks.
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Old 03-24-2008, 01:11 PM   #2 (permalink)
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How long would it take to recoup your costs before you actually start saving money? That's the only concern I would have.
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Old 03-24-2008, 01:14 PM   #3 (permalink)
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Once I hear of somebody making their vehicle run off of flatulence I shall let you know.
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Old 03-24-2008, 01:42 PM   #4 (permalink)
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BBQ gas? That's very 1965. HHO is where it's at man. Hydroxy or whatever you want to call it... It's very simple to produce from tap water, baking soda, and 12V. Check youtube, I built an HHO generator for $1.65 that puts out 1 liter of HHO a minute, that's equal to 3.8 Liters of gas, pretty much for free. Yeah it costs me 6 amps to run it, but my stereo draws twice that and I don't get anything but deaf from that. Plus, it cleans up your emissions and the only waste is water. I'm still doing some long term testing to see what the temp is like after running it for a while, but at 38F ambient temp the electrolyte is hanging around 85F, not too good, but acceptable. I'm going to run it under high engine load only (open loop)because the oxygen from the water fucks with the o2 sensors and the ECU adds more fuel in closed loop, negating any gains in mileage. Btw, I'm running it off the ACIS valve which kicks vacuum from 2000-4500 rpms when the throttle is depressed over 60%. That means I'll be running on HHO pretty much all the time at autobahn speeds...
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Old 03-24-2008, 01:49 PM   #5 (permalink)
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Quote:
Originally Posted by WilsonTheDog View Post
How long would it take to recoup your costs before you actually start saving money? That's the only concern I would have.
A year or two would be all, I am spending $65 a week to fill up right now, a tank of CNG runs about $4-$10 depending on what size cylinder so it would not take long to recoup the cost of the kit.
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Old 03-24-2008, 02:08 PM   #6 (permalink)
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why not just get a commuter, there are plenty of used cars' out there that can get up to 40 mpg. I got a tercel since i was filling up almost every 3 days and yeah 500 a month in gas is a lot. Now i only pay 27-30 dollars a tank to fill up almost every 2 weeks.
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Old 03-24-2008, 02:16 PM   #7 (permalink)
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I have thought about that too. Just kicking around an idea here to see what people think.
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Old 03-24-2008, 02:18 PM   #8 (permalink)
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Compressed Natural Gas (CNG)

Even though this is a wikipedia page it seems to have good info.

http://en.wikipedia.org/wiki/Compres..._gas#Drawbacks

And the price you quoted is really low to me. What size cylinders are you quoting? Are they selling it in a 20lb size and a 100lb size?

And are you getting said CNG from an industrial gas supplier like Praxair?

I do know for a fact that ford made a propane/gasoline engine for the F150 because a truck came through the furniture store i worked at while in college. It looked like a 1995 F150 and had two fuel doors one marked propane and the other was unmarked for gasoline. Guy said that he did pretty well as far as millage goes.

But from my experience as a Biochemist I would say water is where its at. Dennis Klein, the guy that invented the process that differs from Yull Brown's (electric arc) to make and use HHO from water runs a 1994 Ford Escort I believe, and made a pretty sweet cutting torch that will cut through just about anything. Just my 2 cents.

Here is a link to that if your interested:

http://www.rexresearch.com/klein/klein1.htm

Hope this info helps
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Old 03-24-2008, 02:35 PM   #9 (permalink)
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That is a very interesting article. Thanks!
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Old 03-24-2008, 02:56 PM   #10 (permalink)
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no problem, glad I could help
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Old 03-24-2008, 03:05 PM   #11 (permalink)
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I thought about doing an LPG conversion to a VW motor on my old rail buggy one time. I have a few friends that are forklift mechanics that gathered up enough stuff to do it. I chickened out though. Something about riding through the woods and catching a limb just right....then BM
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Old 03-24-2008, 03:32 PM   #12 (permalink)
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Bah, lpg is safer than gasoline because it's lighter than air, so there are no spills, it just floats away.
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Old 03-24-2008, 04:15 PM   #13 (permalink)
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Besides the mileage, the natural gas won't run down the cylinder walls contaminating oil etc... and it burns cleaner

So you get less wear, cleaner oil, and cleaner air.


Good luck, sounds like an interesting project and if you think you can make it work, go for it!



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Old 03-25-2008, 07:58 PM   #14 (permalink)
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Quote:
Originally Posted by tacogrande View Post
BBQ gas? That's very 1965. HHO is where it's at man. Hydroxy or whatever you want to call it... It's very simple to produce from tap water, baking soda, and 12V. Check youtube, I built an HHO generator for $1.65 that puts out 1 liter of HHO a minute, that's equal to 3.8 Liters of gas, pretty much for free. Yeah it costs me 6 amps to run it, but my stereo draws twice that and I don't get anything but deaf from that. Plus, it cleans up your emissions and the only waste is water. I'm still doing some long term testing to see what the temp is like after running it for a while, but at 38F ambient temp the electrolyte is hanging around 85F, not too good, but acceptable. I'm going to run it under high engine load only (open loop)because the oxygen from the water fucks with the o2 sensors and the ECU adds more fuel in closed loop, negating any gains in mileage. Btw, I'm running it off the ACIS valve which kicks vacuum from 2000-4500 rpms when the throttle is depressed over 60%. That means I'll be running on HHO pretty much all the time at autobahn speeds...
r u actually trying that on ur tacoma? when i think of water in an engine, i think of hydrolock.. lol. i saw a few youtube vids, sounds very interesting, but i have no idea wtf they are talking about at all. haha
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Old 12-23-2011, 04:21 PM   #15 (permalink)
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I know this was an old thread, but I wanted to bring it back to life since I just bought a CNG conversion kit that I'm going to put on my 2004 Tacoma or 99 Accord. I bought it from a friend for $500, but new it would run about $1000 (the kit in this video is the same one I got
) My bottles are 6 gallon equivalent and expire in 2016.

Anyway, Utah is a great place to run CNG because there are new CNG filling stations popping up all over the place and it costs about $1.25 a gallon. So, if I spend $100 a month on gas normally, I'll only spend about $40 a month with CNG. So for me i'll recoup the costs in less than a year.

I only got the conversion kit today so I haven't installed it yet, but I do have some questions already so if anyone has converted a Tacoma I'd like to talk to them.
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