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| Alex_EL |
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ive been doing some research on extractors and it seems the major brands such as Genie and Pacemakers i think give a considerabley lower warrenty to cars that have dual fuels or maybe cars just on LPG...
i could be mistaken though, just wandering cheers
_________________ 1997 EL Fairmont [EHELL] Mods: 2.5" straight through Redback Mandrel Bent Exhaust from cat back, BA XR8 18" Replica's, LPG conversion, Kingspring Superlows - front and rear, Monroe GT lowered shocks all round, Clear side repetors, FPV front floor mats.. |
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| dddp! |
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reason being LPG exhaust gases have a much higher water vapour content so the potential is there for higher corrosion rates
stainless extractors would be the best way around this - i have mild steel ceramic coated extractors on mine ... they're only about a year old tho |
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| Waggin |
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Interestingly LPG bodies say that a pro of using LPG is that exhaust systems last longer. I wondered how they came to that conclusion with the fact of higher water vapour. It's extremely noticable on my car, in winter it blows alot more steam while idling (compared to petrol).
_________________ WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build] |
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| Alex_EL |
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thanks for that guys
what is the average life span of performance extractors on a regular 6 cyl engine that just uses unleaded? be more than 7-8 years surely?
_________________ 1997 EL Fairmont [EHELL] Mods: 2.5" straight through Redback Mandrel Bent Exhaust from cat back, BA XR8 18" Replica's, LPG conversion, Kingspring Superlows - front and rear, Monroe GT lowered shocks all round, Clear side repetors, FPV front floor mats.. |
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| gryph |
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My car looks like a bloody steam train atm especially on those 6am mornings.........
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| Alex_EL |
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gryph wrote: My car looks like a bloody steam train atm especially on those 6am mornings.........
haha u make me laugh... which isnt a good thing since my lips are filled with stiches atm..... but thats funny
_________________ 1997 EL Fairmont [EHELL] Mods: 2.5" straight through Redback Mandrel Bent Exhaust from cat back, BA XR8 18" Replica's, LPG conversion, Kingspring Superlows - front and rear, Monroe GT lowered shocks all round, Clear side repetors, FPV front floor mats.. |
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| snap0964 |
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dddp! wrote: reason being LPG exhaust gases have a much higher water vapour content so the potential is there for higher corrosion rates Waggin wrote: Interestingly LPG bodies say that a pro of using LPG is that exhaust systems last longer. I wondered how they came to that conclusion with the fact of higher water vapour. It's extremely noticable on my car, in winter it blows alot more steam while idling (compared to petrol). I think you'll find that LPG has very little impurities in it's exhaust gas compared to ULP - so not a lot mixes/combines with condensation(water).
ULP on the other hand has a fair few - carbon monoxide/nitric oxide/hydrogen sulphide(rotten egg gas) - given the right conditions, heat, etc, IIRC rotten egg gas can combine with water molecules to create a weak sulphuric acid solution. Some budding chemists may be able to confirm this.
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| Waggin |
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Makes sense! But we're right in saying that our BBQ powered cars do steam more, yeah ?
_________________ WAG363: AUII LTD Supercharged 363 Dart Stroker [Supercharged 363 LTD Build] |
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| snap0964 |
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Yeah Yeah - more steam than a locomotive.
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| Alex_EL |
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snap0964 wrote: dddp! wrote: reason being LPG exhaust gases have a much higher water vapour content so the potential is there for higher corrosion rates Waggin wrote: Interestingly LPG bodies say that a pro of using LPG is that exhaust systems last longer. I wondered how they came to that conclusion with the fact of higher water vapour. It's extremely noticable on my car, in winter it blows alot more steam while idling (compared to petrol). I think you'll find that LPG has very little impurities in it's exhaust gas compared to ULP - so not a lot mixes/combines with condensation(water).ULP on the other hand has a fair few - carbon monoxide/nitric oxide/hydrogen sulphide(rotten egg gas) - given the right conditions, heat, etc, IIRC rotten egg gas can combine with water molecules to create a weak sulphuric acid solution. Some budding chemists may be able to confirm this. so how does this effect the extractors... i got lost
_________________ 1997 EL Fairmont [EHELL] Mods: 2.5" straight through Redback Mandrel Bent Exhaust from cat back, BA XR8 18" Replica's, LPG conversion, Kingspring Superlows - front and rear, Monroe GT lowered shocks all round, Clear side repetors, FPV front floor mats.. |
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| snap0964 |
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FPV GT Alex wrote: so how does this effect the extractors... i got lost So read it through again.
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| ge2589 |
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nah you lost me too i think its cause of the higher water vapor in the lpg that the tractors wont have a higher warranty
_________________ Fairlaine XR, it’s the James Bond of Fords |
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| snap0964 |
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I know over many years the cars I've had with LPG have had the exhaust systems last a fair bit longer than my petrol cars, so the higher impurities in petrol exhaust mixing with water must have a bearing, obviously water stagnant in the pipes will have an effect, but this is also dependent on whether you drive short or long trips.
You'll probably find that extractors will have a longer life than perhaps a rear pipe or muffler. I'd suggest you go to a couple of exhaust places, and pose the question, and tell us what their opinions are.
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| hans hartman |
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i find lpg exhausts last longer,hotter gas dries out the exhaust.most exhausts only have a 2 year warranty,i get up to 5-7 years before i have to replace sections,i drive a min. of 30 ks on a start up and hit 80-100ks in 3 minutes,the exhausts dry in less than 5 minutes,a daily driver.
_________________ R.I.P HANS HARTMAN |
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| Alex_EL |
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snap0964 wrote: I know over many years the cars I've had with LPG have had the exhaust systems last a fair bit longer than my petrol cars, so the higher impurities in petrol exhaust mixing with water must have a bearing, obviously water stagnant in the pipes will have an effect, but this is also dependent on whether you drive short or long trips.
You'll probably find that extractors will have a longer life than perhaps a rear pipe or muffler. I'd suggest you go to a couple of exhaust places, and pose the question, and tell us what their opinions are. yeah thats what im gona start doing, but my mouth is full of stiches atm so cant really talk 
i saw a car this morning while waiting for the tram, and it was like as some one posted earlier ^ "a steam train" im guessing it was on gas cos the air was quite cold, and the amount of steam comming out of their... omg... and there was watter dripping from the tip of the exhaust too, like one big drop every 5-8 seconds... lmao, talk about errosion...
_________________ 1997 EL Fairmont [EHELL] Mods: 2.5" straight through Redback Mandrel Bent Exhaust from cat back, BA XR8 18" Replica's, LPG conversion, Kingspring Superlows - front and rear, Monroe GT lowered shocks all round, Clear side repetors, FPV front floor mats.. |
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