Frankenstein L's

[Tom Richardson]

Hi List   During one of #ozdat's late night crackpot ideas sessions we came up with a frankenstein L which sounds surprisingly good.  Its the same as the long rod L18 from Jason Gray's frankenstein page, but with a +2mm overbore to accomodate Z22S pistons.  The long rod big bore L18 was born!  Capacity is 1854cc, rod:stroke ratio is a favourable 1.705:1.  The Z22S pistons sit a further 0.06mm under the deck, slightly lowering the compression ratio.   L18W block +2mm overbore L18 crankshaft L16 conrods Z22S pistons   With a peanut chambered W53 head (39cc chamber) this would give a 9.06:1 compression ratio (super won't be around forever), or with an open chambered U67 head it would give 8.2:1- not toooo bad for low boost turbocharging.  If somebody wants to build this as a race motor, find yourself some flattops and shave the deck for 11:1 :)   It almost sounds too good- reasonable capacity, would rev pretty hard (to 7 or 8k probably), simple head swap for turbo!  Might be expensive getting the whole setup balanced well enough for a 7000rpm screamer though.   Comments?  How hard are Z22S pistons to come by, are they usually okay strength wise?  Errol, Terry, pick holes guys :)   - Tom --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/membersozdat@datascribe.com.au/ ---------------------------------------------------------------------