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Article in the age about HSVs new generation LPG injection system,
the gas is injected as a liquid not as vapour as on other EFI gas systems.
But more important than this is the status and prestige/fashion of semi sports car maker like HSV.......this will greatly enhance LPG's status and therefore acceptance in to the mainstream motoring public.
Although system is still in development stage. drive.com.au/hsv
watch the video.
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You can buy aftermarket liquid LPG injection kits. And theyre not just hokey backyard jobs. They seem to work well. Its good to see HSV taking these steps. But then, diesels dominate endurance racing in the premier classes. Does that mean diesel premium sports cars like Mercedes and BMW are suddenly the hot ticket? Not last time i checked.
Be interesting to see how it goes. |
"Silly modern cars" |
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yes injection kits like jtg here in melb.
Diesel premium cars like BMW and merecs.....? I think Audi has won the LeMans race for a number of years in a row in its V12 twin turbos, this year though first and second was Peugot.
The superior torque and fuel consumption of the diesels is the advantage....it would be even more if it was diesel/lpg (20%)
This is what Bathurst needs....!!
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its called a sequential gas system and uses only 5% more gas to fuel with no power loss. compare that to the old gas hat style which uses between 20-40% more gas then fuel with major power loss.
there were guys i knew with propane injection in there chevy big block diesel pick ups in canada when i lived there in 2003-4. boasting up to 200hp gains with better milage. one run a 14 second quarter mile and massive dual wheel burn out. |
Havent you learnt anything from that guy that gives sermons at church?...Captain whats his name. |
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I know Audi dominated previously, but in the new car market, specifically "sporty" diesels, BMW and Merc lead the way, so my reference was about diesels in racing and diesels on road. Not brand specific.
Although, Audi have a diesel R8 varient i believe. Not too shabby.
If you look to the states, the amount of people doing performance diesel work is quite astounding. Guys punting big dual-cab pickups down the 1/4 in 12s, single cab pickups in 10s!
Theres also set to be a TD (Top Diesel) class, which is basically for fuel chassis with diesel engines. Why? im not sure. Fuel economy isnt an issue in drag racing. |
"Silly modern cars" |
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quote:
Originally posted by bundybluedog
its called a sequential gas system and uses only 5% more gas to fuel with no power loss. compare that to the old gas hat style which uses between 20-40% more gas then fuel with major power loss.
there were guys i knew with propane injection in there chevy big block diesel pick ups in canada when i lived there in 2003-4. boasting up to 200hp gains with better milage. one run a 14 second quarter mile and massive dual wheel burn out.
There appears to be some confusion over the two different types of LPG injection systems. On the market at the moment there are several companies offering very good sequential LPG systems, but they are injecting vapour not liquid LPG into the manifold. They have been easily available for several years now. Ive fitted many of these & what you say is true, no performance loss with only a minimal increase in litres of fuel used. The increase in fuel usage is unavoidable because while LPG has a higher octane number it has less heat energy by volume. But at 45c/litre versus $1.20/litre (current average Sydney prices) there is no contest there. The system that HSV is testing is using liquid injection, which is apparently even more efficient. AFAIK there arent too many of this type of system currently available on the retail market. I would think that it is a little more involved than the bolt-on vapour injection systems. Dr Terry |
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