or Liquid Propane. I'm curious if anyone has tried it. I was intriqued by someone mentioning they were thinking about it, but all the searches I do on it talk about converting small motors.

Its the metering I'm curious about, I'm wondering how difficult/easy it would be to get this to work in a turbo'd application.

 

vapour carb, liquid injection or vapour injection?? are you talking about using it as a primary fuel or like propane injection on a diesel?

heaps of people run LPG turbo cars in OZ, most would be a vapour carb system.

the vapour and liquid injection systems are starting to take off now too, some of our new falcons over here have factory fitted LPG injection systems, most aftermarket injection systems are kinda pricey, but should soon drop once the market grows.

I am building a vapour carbed turbo SBF, using two 440cfm Gas Research Australia mixers, and four GRA B2's, four electronic lockoffs, four feed lines, and eventually two 80-90lt tanks.

You guys have 100% propane over there so the octane should be fairly high, we get a mixture of butane/propane.

Runs fine under boost but you just need a boost refference line from the intake pipe to the vent on the converter, so that under boost it doesn't get blown shut.

LPG is not as sensitive to tune as gasoline, you have much leeway with the mixtures.

PM me if you want some more info.

 

A lot of viper guys are using propane as the additional fuel for the Nitrous system.

 

ooh...sounds pretty expensive. I was just thinking it would be a cool thing to convert a drag car/bike to. Cheap high octane, still capable of driving it on the street....plenty of stations around here...

I just like being different I guess

I would love to hear more info on it, but who knows, others might find this interesting....please post it!

 

I am in parts collecting mode

have;
the turbo stuff except for hat
rotating assembly

need;
700cfm Technocarb mixer, or dual OHG 450
heads

http://www3.telus.net/mjmillar/turbo/

changed plan to a 383 stroker in midstride

 

its not that expensive, over here plenty of second hand tanks to use, the impco and GRA parts are more commonly used over here, more so the GRA on the performance stuff.

one example of its potential is an XE falcon, full street trim, 250cube six cylinder, big garret(I think gt42), single 520cfm GRA mixer, two B2 converters, two lock offs, one 80lt tank, 2800stall, 3.25 gear, un-tubbed, no transbrake, C9 trans, runs 10.2 at about 130ish MPH. Street legal emmisions legal and half the price of petrol.

You guys have it lucky with 100% propane.

Some of the GRA parts I used:
440mixer-450$ each(two)
B2 converter-176$ each(four)
lockoffs-maybe 150$(four)
lines-about 350$
fittings-150$

900 for mixers, 700 for converters, 650 for other.

All up it would end up costing about 3000AU if I use two tanks.
I already had two mixers and two converters off a car I bought.

Not bad as that should flow a continuous 1100+HP, with a peak flow somewhere in the range of 1500+++HP. Thats assuming two tanks can keep up. Its deffinetaly overkill but I would rather more fuel than less.

#ad

 

i read somewhere that its still better to go with regular old gas here in the states.. gas is so cheap here compaired to propane plus there is more energy in gas..

although i bet you get awsome intake temps with that constant phase change cooling eh?

 

propane is nearly half the price of regular gas
when you compare the octane 100 vs 87 it looks even better

there is no charge cooling in most propane conversions as the phase cooling is absorbed by the coolant in the convertor

I have been collecting OHG and Impco 425 kits from the wreckers for about $100cdn each

bought a beater Bronco for a daily driver and converted it the next day with a wrecking yard kit.

http://www3.telus.net/mjmillar/4x4/78BroncoLPG/

also did my brothers Bronco last month

http://www3.telus.net/mjmillar/4x4/78BroncoLPGx2/

my Chevy is getting the 383 T-70 with Technocarb mixer

 

the amazing part of that post is that you were able to get to talk to anyone at Technocarb.
I am local to them and it seems to me they hate customers.

 

Where are all you guys located?? I am not seeing locations, what is the price of LPG in the us?? IS the mileage better witht he LPG or is 1gallpg=1gal fossil fuel for mileage comparisons??

I have a big 454 BBC in my Suburban and if I can get maybe a little better mileage or at least pay less per mile due to cheaper fuel it would be nice... it is a TBI set-up now, and by the looks of thos epictures should be an easy conversion...

 

the conversion is easy, but your 454 probably has very low compression.
timing requirements are a bit different as well.

 

Just found this thread, so I thought I would continue it. I too am going to be using a turbo/propane conversion. Should have everything up and running this spring. It's a bit of an oddball in that I am using a 1980 Mustang (mini-tubbed/caged/ladder bar rear) for my body, but will have a big block Mopar engine (451). For starters I'll be using 2 425 Impco mixers(mounted on a tunnel ram) along with 2 model E converters and two fuel locks. Boost probably won't go over 6-8 pounds initially, so I figure on not needing any extra converters and locks for a while. Impco parts are plentiful here, so even though it's older technology, it's cheap. What sort of butane/propane mixture do you fellows have down under? And what's the octane rating? Seems like there are way more people using propane down under for performance than there are in North America. Where propane has become popular is with the rock crawlers and hill climbers. No worries about fuel draining out of the bowls at extreme angles.
Hopefully this thread will continue, as there is simply not enough discussion on propane/LPG.
Tom