Birty Dastards Jeep Club
Tech Forum => Workshop => Topic started by: ferretjuggler on June 07, 2010, 02:49:47 PM
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Who has had experience of AMCs V8s on LPG?
I know Kev has, and reckoned about a 25% power loss.
I'm just wondering if there have been other issues, like lack of upper cylinder lubrication, or detonation, on LPG?
I have a long term plan forming.
AMC 360 with single point fuel injection and single point LPG injection.
Dunno how to get there yet, just thinking about it.
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nah go multi point injection much easier and no power loss, as for valve seat lubrication, most heads come with hardened valve seats and since US cars have been running unleaded since the mid/early 70's most engine from that era are equiped with hardened valve seats that should deal with lpg.
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I think it's Edelbrock who do a tuned port injection system (multi point injection) for AMC V8s
About $2400 (ish) might get some discount for cash :icon_eek:
Then you gotta find an LPG multi point injection system suitable to piggyback onto the edelbrock.
(Guessing) $1500 extra maybe more?
You got $4000 to lend me Rob?......errrrrrr plus shipping, duty and VAT that is.
I think I'll stick to plan "A" thanks. :greggmo:
Also, some engines designed to run on unleaded gas can't seem to cope on LPG, no matter how hard their valve seats are :017:
Jeep/Chrysler 4.7 V8 for a start.
Steady trickle on eBay with cylinder head issues, all LPG converted
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yup but probably not set up properly in the first place otherwise they would last a little longer but I am not sure, You can use a standard manifold as long as you can drill and tap it safely, you don't have to go running off for some tuned port manifold. Its how they fit all multi- point over here mind you, for you simple shire folk single point would probably work out best.
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Hmmmm.........
16 different fuel/LPG injectors in holes drilled/tapped into the inlet manifold?
I think I'd better leave that to the engineering skills of you Black Country Bodgers :icon_eek:
Sounds like a sorta fools paradise to me, after all I'm not building a race car.
Seriously, I don't think ya need it on a 6 litre V8 putting out just 200-250 BHP and I'm not really interested in making big horsepower figures.
Having said that, good throttle response is very important to me.
All the TBI conversion threads on the IFSJA mention instant improvements in throttle response, driveability, and torque over a carb set up.
It would be very nice to try each set up in turn, but realistically, this ain't never gonna happen :010:
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king CJ has been running it for years and on a 6 and now his monster 360 ...... Goes well no probs and has some trick bits megajolt etc....
best to ask him...... starts and runs LPG no petrol stuff :icon_super:
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go all gas or leave the hell alone
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fools gold dood :jpshakehead:
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I think it's Edelbrock who do a tuned port injection system (multi point injection) for AMC V8s
About $2400 (ish) might get some discount for cash :icon_eek:
Then you gotta find an LPG multi point injection system suitable to piggyback onto the edelbrock.
(Guessing) $1500 extra maybe more?
You got $4000 to lend me Rob?......errrrrrr plus shipping, duty and VAT that is.
I think I'll stick to plan "A" thanks. :greggmo:
Also, some engines designed to run on unleaded gas can't seem to cope on LPG, no matter how hard their valve seats are :017:
Jeep/Chrysler 4.7 V8 for a start.
Steady trickle on eBay with cylinder head issues, all LPG converted
And that is Birtys very useful post of the night...Cheers Mr FJ
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gas is for cooking
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Its not for BBQ either..
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Bloody is too :hysterical:
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Its not for BBQ either..
:imwitstupid: :003:
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Is so :hysterical:
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I'm with Gaz on this one.
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you all going a bit Hank Hill?
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I'm with Tim and Gaz, BBQ is a style and flavouring - the cooking is actually done on a grill, preferably Weber :003:
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It is not a Barbeque. It is a Braai. And you do not use gas. Gas is for Rooinecks.
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:iagree: :icon_super:
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To my knowledge, we speak English not Afrikaans, so grill seems more relevant. I'm with James,
barbeque is a style of food done on a grill. Doesn't really matter whether the grill is charcoal,
gas or electric, the flavour comes from the seasoning. To get proper flavour from the cooking process,
you use a smoker, in which you burn wood.
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two words.......mega squirt! anybody heard off it?
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Yup, the parts are on the way to megasquirt my 360. Just cannot decide which manifold to mutilate.
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how much were the bits for the kit?
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Got the kit and all the bits for about $350. Still researching everything, but ordered the kit while the exchange rate is ok. There is a bloke in this country who builds them, so may send the components to him to build into a working unit for me.
AMC 360 with twin T3/T4 turbos. :100:
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sweet :greggmo: ya gonna drag Panics hummer all over cheapfest at ya tow off :icon_super:
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had gas on my 360 for 5 years now and have a gas carb in place of a holly 4 barrel. performance is great, the engine has mega jolt on it so the ignition curve is set up for lpg. perfomance off road is better than a petrol carb because angles dont bother it, and you cant get watyer in the fuel tank.
you hear allsorts of crap about burned valve seats etc.. which may be true on some engines but cast iron heads couldnt give a toss.
there are alot of crap conversions out there so beware. impco stuff is pretty good for carb sytems or you could go fancy pants multipoint injection (which i would recomend megasquirting to run it then you can use 2 ignition maps for both fuels, and not needing to buy the lpg software would help with the cost).
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Yup, the parts are on the way to megasquirt my 360. Just cannot decide which manifold to mutilate.
you goint to let us know how you get on with the conversion?
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I know a young lady who has megasquirt!!!
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tell us more mr isle of man...but dont be too rude.