This might be in the wrong section as I believe it should be under funnies, but have a read of these people and there stories. I think the Police should re-think there ideas about using new WRX's and Astra TD's and consider going green with these 'ball tearers'. RogerCordia was said to be hiding in fear of being pwned by one hahaha.
http://priuschat.com/index.php?showtopic=16201&st=0

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No more GC8, sad face.
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Thats sad...

"Yeah i was dragging some guy, then i flipped into petrol mode - He didn't know what hit him"

WOW 1/4 mile in 17 seconds! Forum for electric car nerds is funny as!

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Funny looking German Subaru

lol...wow, same deal with LPG taxis mate...fark they are quick coz of that petrol switch!!

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Member of the 18-35 club and proud of it! (For another 5 years...getting old)

New toy has arrived, 1/4 mile in 11.2 sec and only 114hp!

funnily enough, lpg is higher octane then petrol, so you should be able to make more power with it, hence go quicker

there is also a hpi story from last year with a 180sx on batteries doing 12's in California.

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I am only an asshole on the internet :)

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that's what i heard...anyone know lpg's octane level (i heard 96 but not sure if thats true), you'd need to tune the car for lpg to gain any benefit

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Member of the 18-35 club and proud of it! (For another 5 years...getting old)

New toy has arrived, 1/4 mile in 11.2 sec and only 114hp!

Although it has a higher octane number, that is not quite the end of the story.

A lower octane fuel is actually more explosive and has more energy, but tends to be more unpredictable when the A/F ratio is changed. The ECU is not quick enough to respond to compensate and knocking occurs, therefore a 'safe' tune is generally used and less engine power is produced.

When the octane number is higher, the fuel burns more predictable and smoother, but with less energy. The benefit for the engine though is the tune can be more agressive (i.e. closer to the lean limits) without the risk of knocking, hence more engine power is achieved.

On to LPG vs Petrol, you are right that in certain scenarios LPG performs better. I've heard that LPG will actually perform better in the lower RPM region and I have a feeling it is due to its better vaporisation in the engine, hence better air/fuel mixing when the engine is a bit asthmatic. Petrol performs better in the higher RPM due to its higher energy content and is being vaporised more efficiently.

My mate has a fiat 124 with a lancia delta integrale head, some other fiat 2L bottom end and the turbo off the nissan RB25 @ 12psi. It actually runs on LPG and the above seems to hold true. It is real gutsy down low but flattens out significantly in the high revs. He is still working on getting the petrol working, but it will be interesting to compare.

On another note the prius forum is just plain funny!

They can be quick.




But only if you drop em off a cliff.

They do have lots of torque for that type of car, but 0-60mph in 9.8 seconds isnt great. Shouldnt these dudes being trying to out perform each others economy, I thought that was what those cars are all about?

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betty banger