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Propane super duties?

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Old Sep 16, 2007 | 01:40 PM
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Propane super duties?

So I can't help noticing the engine codes in the thread at the top of this forum, where they had propane versions availiable of the 5.4 and 6.8. The difference in gas and propane could be driving my truck daily and get ird of the honda civic....
 
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Old Sep 16, 2007 | 01:57 PM
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There are many 6.8l in generator applications running on Natural Gas and LP. It can be done.

I read an article about Ford developing several supercharged 6.8l running on hydrogen to power E-series busses for mass transit.

The downside to fuel other than gasoline is reduced power output.

The supercharged 6.8l on hydrogen was making way less hp and tq than a nat. aspirated 2v 6.8l on gas.

Technology has a was to go before certain fuels are viable.
 
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Old Sep 16, 2007 | 02:04 PM
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Propane is viable and actually more efficent, but requires far more agressive timing curves and preferably higher compression ratios or turbocharging. I know some of the buses in the Seattle area are runing CNG and Propane turbocharged engines that were just regular gas motors. Keeping the vehicle dual fuel is the hardest part, we need a real electronics nerd that can setup a ECU with 2 different programs and a switch to go back and forth.
 
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Old Sep 16, 2007 | 04:51 PM
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the conservation district I worked for started buying all there SD's with gas motors and retrofitting the propane systems. theyve had em in service now for 4 years
 
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Old Sep 16, 2007 | 05:11 PM
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Yes, propane is not a fuel that reduces power if the engine is set up correctly.

The only major downside to propane (other than the fuel tank is a bit bulky) is cold starts aren't the greatest.
 
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Old Sep 16, 2007 | 05:49 PM
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PSE&G in NJ have several vans,GM and fords that run on propane and lp gas
also NJ transit busses.
 
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Old Sep 16, 2007 | 05:59 PM
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It's not that hard to do propane by itself, you can buy all kinds of stuff off ebay or where-ever. I'm after a switch on the fly gas/propane setup, I can handle everything except the computer part. Basically I'd need one of these programmers you see like the superchips or something that would ramp up timing and kill-yes turn off the injectors-when I switch to propane. I was jsut reading online a shop in UK that piggybacks an additional chip into the factory ecu like we do tuning the honda ECU's, if it's similiar I just need someone with the software to burn the chip.
 
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