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LPG & Compression.

 
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maDGeMvAN
tinkerer


Joined: 06 Oct 2001
Posts: 452

PostPosted: Sat Oct 12, 2002 4:23 pm    Post subject: LPG & Compression. Reply with quote

This is out of curiosity.

If running straight LPG, what compression ratio would you be capable of running?
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rob_w
tinkerer


Joined: 19 Feb 2002
Posts: 395

PostPosted: Sat Oct 12, 2002 11:51 pm    Post subject: Re: LPG & Compression. Reply with quote

Adrian,
as lpg can be use in a diesel motor [or so i have been told], compression should not be an issue with lpg...
[just work out the equivalent compression of eggy's turbo at 18 psi...]
i ran a high comp 2ltr for a few days [then killed the bottom end Sad ] but that was not cos of the gas....

hope this helps some
rob.
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Birko
tinkerer


Joined: 03 Apr 2002
Posts: 180

PostPosted: Sun Oct 13, 2002 8:40 pm    Post subject: Re: LPG & Compression. Reply with quote

when i was considering lpg 4 my engine i was told 10.5:1 , or maybe even 11.0:1
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TG 1985
backyard mechanic


Joined: 08 Jan 2002
Posts: 550

PostPosted: Sun Oct 13, 2002 10:12 pm    Post subject: Re: LPG & Compression. Reply with quote

how can u fuk up a bottom end in a few days? that i just don't get.

Chris.
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rob_w
tinkerer


Joined: 19 Feb 2002
Posts: 395

PostPosted: Mon Oct 14, 2002 11:44 am    Post subject: Re: LPG & Compression. Reply with quote

well, its like this,

buy a second hand g200,
reco the top end, check pistons, bores, change timing chain,
re-assemble, install, do a burnout [or 10] then realise you should have done the bottom end bearings while you had the chance, spun a bearing, ripped out g200, started again.

rob.
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