When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
i have a few propane places within 25-30 miles of me, and if i end up moving to this farm house that my dad owns, i might just get a couple hundred gallon tank to keep on the property. trust me, i've thought it out a bit. and in a pinch they sell transfer lines so that you can stop at a gas station and buy a grill tank to fill yours back up.
i haven't read up on it in a while, but last i knew they only offered kits for up to like 360 hp, which i'm sure even the mildest 521 or 545 would surpass. maybe i'll do some reading tonight.
If 350hp is your target Id forget about a stroker. Its too easy to do with a basically stock engine and a cam change.
Better yet... if all you want is 350hp an EFI 460 would be the way to go.
you misunderstood me kris. i didn't mention any goal hp. i was just stating that the biggest propane kit i have seen was only suited for 360hp, and i was stating that even the mildest stroker would need way more fuel and air than that kit could provide.
while it's on my mind and we're bsing, do you know of any decent 2x4 460 intakes if i did go the propane route? the only one i know off the top of my head is a tunnelram, and i'm thinking more along the lines of just a short simple dual quad intake so i could still close my damn hood. i'm not much on motor talk compared to some of you guys, and i don't search much about them.
EDIT: thanks for nothing kris. found some info about a blue thunder dual quad intake, but i don't think they are still in business. other than that it just looks like tunnel rams.
Holy crap! Real advice on the FTE forum?! ... I hadn't done any research on propane yet. Can you explain why there is such a power loss? Is propane less combustible?
"A gallon of diesel weighs 7 lbs and produces around 128,000 BTU (LHV) or usable. A gallon of LP weighs 5 lbs. and produces around 84,000 BTU (LHV). A cubic FT of Natural produces 880 BTU (LHV). Gasoline is slightly lower than Diesel. A Diesel takes around 7000 btu to deliver 1 HP. A gas engine uses over 10,000 BTU to make1 HP. For stationary power a diesel is the most efficient and will generally use 40% less fuel than a gas engine. Natural costs presently around $11.00 / Decatherm (1,000,000 BTU). LP is near $22.00 /Decatherm, and diesel is around $17.00 /Decatherm. This places diesel and Natural fuelled engines close on fuel cost, but natural gas is not portable. Gasoline is both a pain in the butt and deadly, and LP although the perfect fuel, is grossely overpriced. It is a byproduct of the distillation process and therefore should be free (at least cheap), but with all the marketing and convenience claims the OC's are able to sell it higher than the distillate fuels. Diesel engines are by far a more hearty breed and with the new bio fuels are less environmentally harmful. "
Personally with a serious off-road rig I would stay away from propane, unless it's built like a tank Also, I would love to put a diesel in but the conversion is too expensive.
On the other hand, with all the BS in this thread we should be able to contain some of it for some real purpose such as methane fuel.
and kirby i'll bs where ever the hell i feel like because it was on topic. you brought up propane, and i was talking about propane. you really are a big ****ing cry baby. what makes your thread so g/d important? are off road scholars going to use it for future reference later down the road because you are so crafty and knowledgeable ? nope, didn't think so.
Personally with a serious off-road rig I would stay away from propane, unless it's built like a tank Also, I would love to put a diesel in but the conversion is too expensive.
On the other hand, with all the BS in this thread we should be able to contain some of it for some real purpose such as methane fuel.
what's the big fear of propane? i'm more scared of gasoline catching me(it's happened) or my truck on fire. a properly built propane system is safer than a gas setup any day imho. i've seen the tank get shot on tv shows and they either just get a dent or the bullet goes right through without anything bad happening.
and what's with the newbs coming around acting funny lately?
10-20%. Why build a propane motor when you could take that motor and run some other fuel and get 10-20% more power.
Originally Posted by Proeliator
On second thought, you lazy baboons will never take the time to go to a library, so I googled just out of curiosity and heres the first link: http://www.naftc.wvu.edu/NAFTC/data/...h/LPG/LPG.html to further your education.
edit: Interesting now that I've scanned the article. You know that @4% power loss I was claiming? Here is a direct quote pulled from those statistics: "Most engines converted to burn LPG or CNG suffer an additional 10-20 % power loss". Now, I feel that is due to a less than efficient conversion system...which most of them are. Realistically, most guys converting to propane ARE seeing at least a 10% reduction in horsepower. However, having never analyzed or run "Propane"s system, I'm just operating on the assumption that "Propane"s system is SO good, its only power reduction is that required by the laws of physics....thus the 4%. Is it probably more than that? I'll let you guys do the math. But you should see why I was 100% confident that I would have won that bet.
Bottem line: My statments of powerloss are based on the laws of physics regarding the volumetric efficiency of gasoline versus propane. His statements of powerloss are based on his "seat of the pants" opinion. That said, I think if your are interested in an LPG "Propane" is a good guy with a great system. There you have it
10-20%. Why build a propane motor when you could take that motor and run some other fuel and get 10-20% more power.
if i remember right that quote you had there was from a pretty interesting thread on pirate. Link? Anyways yes the attraction to propane is it isnt effected by angles and rough offroadin but you do have a powerloss its better to just run a cheap injection system if thats what you want.
I think it may have been from a recent thread I started on the topic on NWU, though a lot of the information from that thread came from another thread on pirate where Seth basically called out a guy that was selling kits and claiming no power loss, though rather tactfully for Seth and/or pirate.
I got my saginaw steering pump bolted up today. I couldn't find a bracket in the junk yards I liked so I modified the original. It turned out great.
I also started making gussets for the front spring bushing mounts. **** canned the first set because they looked like something that damn yankee, paul would have rigged up.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.