There are a lot of considerations to be taken into account Nat. Using L18 rods will result in poor angulation causing scuff. Eliminate this problem by using long rods and short pin heights. L20 crank can be used as mains can be ground down to fit.
I personally think you are better off using an L18 crank and sroking it 4mm per throw, and boring the L18 block to get 1999cc. Need an L18W block though to handle the 89mm bore or use sleeves. Remember that stroke is 4mm on throw meaning 8mm stroke increase. Combine all this with long 240K rods and short pin height forgies and you have a reliable revver. 4mm can be welded on saving you money on metal spraying. Make sure you get it all balanced and nitrided though. Cheers Brad -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of nat P. Sent: Tuesday, 18 March 2003 12:19 PM To: [EMAIL PROTECTED] Subject: Re: L20 crank into L18? Good, bad or ugly? But is that the only concern! What about revs? Crank to piston angle? I dont know what are good figures and what are bad? Anyone? --- Kristian Walsham <[EMAIL PROTECTED]> wrote: > Nat, > The L20B crank has a main bearing journal of > 59.95mm compared to > L16/L18 of 54.95mm. > > I think it`s possible to use a Z20 crank but not > sure. > > Kris. > ----- Original Message ----- > From: "nat P." <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, March 18, 2003 11:50 AM > Subject: L20 crank into L18? Good, bad or ugly? > > > > Mornin all!! > > > > Has anybody put a L20 crank into a L18? I'm > thinking > > about doing for my rally car! Which will give me > the > > most out of my 3 litre class! BUT I've heard > different > > things, Can someone tell me the pro and cons of > such > > an act! > > Cheers NAT > > > > http://mobile.yahoo.com.au - Yahoo! Mobile > > - Check & compose your email via SMS on your > Telstra or Vodafone mobile. > > > > > > > --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/[EMAIL PROTECTED]/ > --------------------------------------------------------------------- http://mobile.yahoo.com.au - Yahoo! Mobile - Check & compose your email via SMS on your Telstra or Vodafone mobile. --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/[EMAIL PROTECTED]/ --------------------------------------------------------------------- --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/[EMAIL PROTECTED]/ ---------------------------------------------------------------------
