I don't know either but if the air:fuel ratio is correct on the LPG conversion then there should be significantly lower carbon monoxide and unburned hydrocarbon engine-out emissions. That would suggest that the oxidation catalyst should run cooler.
----- Original Message ----- From: "John Giddy" <[EMAIL PROTECTED]> To: "Discussion of issues relating to Soaring in Australia." <aus-soaring@lists.internode.on.net> Sent: Sunday, September 09, 2007 4:49 PM Subject: Re: [Aus-soaring] Family Tow Car > Catalytic converters get hot from the exothermal reaction. Don't know > what happens with LPG conversion though. > John G. > > Richard Gynes wrote: >> Hi, >> >> Thanks to all who replied on and off list. >> >> The budget for the family car is flexible - what does not go on the car >> goes >> towards the glider +/or caravan. Or more expensive car means enforced >> cheaper glider/syndicate. So it is probably a used vehicle in question. >> >> Do catalytic converters get hot when a car is converted to LPG and >> running >> on LPG? ie is the catalytic reaction exothermic? Or are they hot because >> of >> the exhaust gasses? >> >> Regards >> >> Richard >> >> On 9/9/07 11:25, "Terry Neumann" <[EMAIL PROTECTED]> wrote: >> >>> G'day Richard, >>> >>> Whatever you get - and there has been plenty of advice so far - look >>> for a >>> vehicle with sufficient weight (and this probably means size) to able to >>> remain the dominant influence in the towing combination. I know of >>> several >>> road dramas with gliding trailers where the towing car had the >>> horsepower - >>> but not the weight - to allow the driver to be in totally charge of what >>> was >>> happening all of the time, and things went badly wrong when the trailer >>> took >>> over. There were probably other factors in the instances I recall, >>> but the >>> common question in those mentioned was a towing vehicle which on >>> reflection, >>> was probably on the smaller (lighter) side of what perhaps should have >>> been >>> used. >>> >>> The downward force on the hitch is a function of how the trailer is >>> loaded. >>> Most vehicles have a section in the manual about towing limitations and >>> suggested weights for both the trailer itself, and the load at the >>> coupling. >>> All of these things are important in managing the stability and >>> therefore the >>> safety of the combination. An incorrectly loaded trailer appears to >>> have been >>> the major factor in one mishap with an otherwise reasonable combination >>> of >>> vehicle and glider trailer some years ago. >>> >>> Diesel engines are worth considering, especially in recent years. They >>> provide plenty of lugging power for towing, and a turbocharger assists >>> considerably in providing better performance and fuel economy. There is >>> another worthwhile benefit in having a diesel vehicle. Unlike their >>> modern >>> petrol engine counterparts, diesel vehicles usually do not have a >>> catalytic >>> converter in the exhaust system. This means that as a general rule >>> they are >>> much less likely to start a fire when driven into standing stubble or >>> long >>> grass, a potentially useful feature when retrieving in the fire danger >>> season. >>> The obvious downside is that the fuel is more expensive and does not >>> seem to >>> be subject to discounting wars to the same degree as ULP. In New >>> Zealand >>> diesel fuel is considerably cheaper than petrol. The reason why is >>> something >>> of a mystery. >>> >>> As in most situations, the final choice of vehicle may well be something >>> of a >>> compromise. >>> >>> Regards, >>> Terry >>> >>> >>> >>> >>> >>> _______________________________________________ >>> Aus-soaring mailing list >>> Aus-soaring@lists.internode.on.net >>> To check or change subscription details, visit: >>> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> _______________________________________________ >> Aus-soaring mailing list >> Aus-soaring@lists.internode.on.net >> To check or change subscription details, visit: >> http://lists.internode.on.net/mailman/listinfo/aus-soaring >> > _______________________________________________ > Aus-soaring mailing list > Aus-soaring@lists.internode.on.net > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring _______________________________________________ Aus-soaring mailing list Aus-soaring@lists.internode.on.net To check or change subscription details, visit: http://lists.internode.on.net/mailman/listinfo/aus-soaring
