CNG Conversion

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CNG Conversion - 5/6/2008 11:21:52 AM    davidshaw291   Posts: 17 Joined: 10/10/2007 Status: offline Has anyone ever been involved in converting a Blazer to CNG(compressed natural gas)? I couldn't help but notice that there were several companies that offered CNG retro-conversion kits for Chevy Blazers. Just curious about it. Cost? Hassle? Performance..? Post #: 1

RE: CNG Conversion - 5/6/2008 11:34:09 AM    WolfPack Posts: 2071 Joined: 10/30/2007 From: Raleigh, NC Status: online Biggest problem would be fuel source. I know Utah has a wholleee lot of CNG stations....but as for me in Raleigh, NC, we've got one station.  _____________________________ 2000 Blazer 4d LS 4x4 - 265/70/15 General Grabber AT2s - Hunter Brush Guard - Surco Roof Rack with IPF 868s - 1.5'' Shackle + Tbar - 2'' BL (in reply to davidshaw291) Post #: 2

RE: CNG Conversion - 5/7/2008 9:44:38 AM    davidshaw291   Posts: 17 Joined: 10/10/2007 Status: offline Yeah but you can fill up at your house(assuming you have NG) so probably 90% of your fill-ups will be at $1.75 per gallon. Ching! And I think the easiest conversion is a Duplex arrangement, where you simply add-on the CNG components and you can switch from gasoline to CNG with the flick of a switch. It really seems cost-effective, too: $35K for a new Hybrid SUV or $4K for a CNG conversion? The hardest part of converting is finding room for the tank. Blazers have plenty of that and also, it solves one of their biggest problems: The Dreaded Fuel Sending Unit Failure And it's supposedly better for the environment, car runs better, bla-bla-blah....but this and everything I've said is all theory and I'd like to hear it from someone with actual experience. Anyone? (in reply to WolfPack) Post #: 3

RE: CNG Conversion - 5/7/2008 11:06:30 AM    972DRBLAZER Posts: 415 Joined: 10/30/2007 From: polk, fl. Status: offline i havent heard of it. how does it affect horsepower? _____________________________ 97 BLAZER 4.3 2WD. HEADERS, CHERRY BOMB, 3.73 POSI, PORTED THROTTLE BODY, CAI, TBS, 3.5 MAF, ELECTRIC FANS, WAIT4ME TUNE, B&M STAGE 2 SHIFT KIT, HOLLEY IGNITION BOX & COIL, 160 THERMO, AND MORE. (in reply to davidshaw291) Post #: 4

RE: CNG Conversion - 5/7/2008 11:41:50 AM    otnietdehoooo The Chop Shop Moderator Posts: 1518 Joined: 5/25/2007 From: Ft. Worth, TX Status: offline Here is a Dept of Energy page that shows where to find alternative fuel sources http://afdcmap2.nrel.gov/locator/ _____________________________ Matt - 98 4DR 4WD _____________________________ (in reply to 972DRBLAZER) Post #: 5

RE: CNG Conversion - 5/7/2008 1:38:53 PM    davidshaw291   Posts: 17 Joined: 10/10/2007 Status: offline Again, a duplex conversion would let you keep both fuel sources(gasoline & CNG) if case you wanted to go on long trips or weren't going to be home in time to fill up. However, I would be nervous relying upon a gas and gas pump that has sat, unused, for weeks in a pinch. Not to mention, your fuel economy would not be optimal hauling two tanks around in your vehicle. I've read that you should expect a 10% drop in horsepower. Range should be the same. Engine life is supposed to be increased as NG burns much cleaner than gasoline. Suppose to be safer in an accident, in theory... (in reply to otnietdehoooo) Post #: 6

RE: CNG Conversion - 5/7/2008 2:49:45 PM    WolfPack Posts: 2071 Joined: 10/30/2007 From: Raleigh, NC Status: online I've heard the CNG/Hydrogen is safer in a wreck theory....they cite that the hydrogen/CNG goes upwards and dissappates, whereas the gasoline falls and pools on the ground.  I still feel like explosive decompression is much more dangerous than a gas leak, but that's just me And is it really 4k?  What all has to be done as far as feeding the fuel to the engine?  I would guess that's most of the cost, or maybe a high pressure storage tank is more expensive than I thought. (I'm curious to see if a half/half setup could be done?) _____________________________ 2000 Blazer 4d LS 4x4 - 265/70/15 General Grabber AT2s - Hunter Brush Guard - Surco Roof Rack with IPF 868s - 1.5'' Shackle + Tbar - 2'' BL (in reply to davidshaw291) Post #: 7

RE: CNG Conversion - 5/7/2008 8:23:35 PM    davidshaw291   Posts: 17 Joined: 10/10/2007 Status: offline Actually, it appears that the half/half set-up is the standard: http://www.mycngkit.com/Buy_CNG_Natural_Gas_Bi-Fuel_Conversion_Kit_For_Any_Ford_CNG,_Chevy_CNG,_GM_CNG,_Nissan_CNG,_Toyota_CNG.html And you were right, kit costs $950, the tank costs $2K! You know, numerous people on these forums have sought some "magic modification" that will somehow boost their Blazer's mileage by 50%. Well, I think this is about as close as you're ever going to get... (in reply to WolfPack) Post #: 8

RE: CNG Conversion - 5/8/2008 2:51:54 AM    kiwiblazer Posts: 336 Joined: 3/6/2008 Status: offline This is the lpg options available in New Zealand. They have been using this since the 1980's. Interesting reading.  Conversions on my Blazer will cost me about NZ$5,000.00 http://www.gasuup.co.nz/page.php?16 http://www.rockgas.co.nz/pdf/4wd-aug-LPG-article.pdf  - New Zealand 4wd magazine report. _____________________________ '99 Blazer LS 4 door 4x4 Auto RHD, Euro smoked tails & bumper lights, custom roof lights. Blacked out chrome on billet grille, red & black billet grille emblem & cold air intake. http://s292.photobucket.com/albums/mm7/kiwiblazer/ (in reply to davidshaw291) Post #: 9

RE: CNG Conversion - 5/25/2008 9:42:53 AM    burak sozer   Posts: 86 Joined: 10/28/2007 Status: offline Its very common her ein Turkey too, most cabs are running by CNG or LPG. But it smells :( Conversion costs 1000$ only here, but I dont like some reason. Istill keep the gasoline. _____________________________ 1996 Blazer LT 4door 4WD 1996 Corvette Coupe LT1 1974 Camaro Z28/Type LT 2007 Fiat Palio :) (in reply to kiwiblazer) Post #: 10

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