Sorry but that's actually incorrect, it's 145.9mm and 31.6mm / 13cc dish from factory.
- Tom David Costello wrote: >the L20B rods are 145.70mm the Z20E pistons are 32mm and an 8cc dish >L20B rods and Z20E pistons together sit 1.75mm below deck in an L20B block >using an 86mm bore and 2mm headgasket you get 8.4:1 >then mark's made his a 13cc dish which gives 7.9:1 > >Dave >----- Original Message ----- >From: "andrew smith" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Sent: Friday, June 28, 2002 9:01 AM >Subject: Re: Tuning Cars (off topic) > > >>Mark, >>With those figures it does work out at 6.7:1.But i dont know how you get >> >40cc > >>for a deck down measurement.If your using z24 crank,L20 rods and Z20e >> >pistons > >>then they should sit no further down than 1.5mm from the deck in an >> >untouched > >>L20 block.I thought those pistons were around 13cc's and 1.5mm below >> >should give > >>a further 8.7cc Which would give around 8:1,maybe a little less if the >> >dish is > >>larger that 13cc. >> >>mark krawczuk wrote: >> >>> my bore is 86 mm, the gasket hole is a little bigger , so i reckon >>> >that it > >>>would be a hole of about 87mm. >>>my head cc is 45 >>>bore 86 >>>stroke 96 >>> 2mm head gasket approx 11.76 cc >>> >>>the volume with dished pistons that havent been machined , and the >>>piston at tdc is 40 cc. (fluid level with top of block) >>> >>>what do you mean 32mm z20e pistons, mine pistons are 86 mm ( 1 mm >>>oversize) >>> >>> i have been plugging these figures in a comp ratio calc and seem to be >>>getting about 6.7:1 comp can any body double check these figures? >>> i know before i said it was about 7.8 :1 but this is what i was >>> >pretty > >>>sure it was... which was of the top of my head. >>>the figures above are actually what i have written down. >>> >>>mark k >>> >>>----- Original Message ----- >>>From: "David Costello" <[EMAIL PROTECTED]> >>>To: <[EMAIL PROTECTED]> >>>Sent: Thursday, June 27, 2002 6:56 PM >>>Subject: Re: Tuning Cars (off topic) >>> >>>>shit, how'd you get the compression that low? >>>>the dish on the pistons must be huge >>>>using Z24 crank, L20B rods, 2mm copper gasket and the 32mm Z20E >>>> >pistons it > >>>>gives a comp ratio of 11:1 >>>>and you said you were running 87mm bore...that's around 11.4:1 >>>> >>>>Dave >>>> >>>>----- Original Message ----- >>>>From: "mark krawczuk" <[EMAIL PROTECTED]> >>>>To: <[EMAIL PROTECTED]> >>>>Sent: Thursday, June 27, 2002 8:08 AM >>>>Subject: Re: Tuning Cars (off topic) >>>> >>>> >>>>>hi, i have dished z20 ( you can get flat or dished), which i got >>>>> >>>machined >>> >>>>>out a bit more, then when i had to redo he engine i just put the >>>>> >dish > >>>>type >>>> >>>>>back in withoutt geting them machined out more. i can work it out >>>>> >more > >>>>>exact if ya want me to but i think i ended up with about 7.8:1 or >>>>> >>>7.9:1 >>> >>>>>and yes, z20 pistons on l20b rods. >>>>> >>>>> mark k >>>>>----- Original Message ----- >>>>>From: "David Costello" <[EMAIL PROTECTED]> >>>>>To: <[EMAIL PROTECTED]> >>>>>Sent: Thursday, June 27, 2002 12:41 AM >>>>>Subject: Re: Tuning Cars (off topic) >>>>> >>>>> >>>>>>hey mark, slightly off this threads topic here, but what >>>>>> >compression > >>>>ratio >>>> >>>>>>did your L/Z combo end up with? >>>>>>you used Z20E pistons and L20B rods didn't you? >>>>>> >>>>>>Dave >>>>>>----- Original Message ----- >>>>>>From: "mark krawczuk" <[EMAIL PROTECTED]> >>>>>>To: <[EMAIL PROTECTED]> >>>>>>Sent: Thursday, June 27, 2002 1:07 AM >>>>>>Subject: Re: Tuning Cars (off topic) >>>>>> >>>>>> >>>>>>>i have pics of the body, and engine but non of the internals of >>>>>>> >the > >>>>>>>engine. i did have some internal engine film on a handycam >>>>>>> >tape > >>>but >>> >>>>>it >>>>> >>>>>>>got chewed up, when i get the energy i might see if i can >>>>>>> >salvage > >>>>>>something >>>>>> >>>>>>>of it. >>>>>>>if you want i can burn u a cd with some pics of my datsun. >>>>>>> >email me > >>>>: >>>> >>>>>>>[EMAIL PROTECTED] >>>>>>> witth a postal addresif you want them .. for free !!!! >>>>>>> >>>>>>> mark k >>>>>>>----- Original Message ----- >>>>>>>From: "Paul Stanley" <[EMAIL PROTECTED]> >>>>>>>To: <[EMAIL PROTECTED]> >>>>>>>Sent: Wednesday, June 26, 2002 11:01 PM >>>>>>>Subject: Re: Tuning Cars (off topic) >>>>>>> >>>>>>> >>>>>>>>Do you have pictures? >>>>>>>> >>>>>>>>From: Paul Stanley >>>>>>>> [EMAIL PROTECTED] >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>----- Original Message ----- >>>>>>>>From: mark krawczuk <[EMAIL PROTECTED]> >>>>>>>>To: <[EMAIL PROTECTED]> >>>>>>>>Sent: Wednesday, June 26, 2002 4:47 PM >>>>>>>>Subject: Re: Tuning Cars (off topic) >>>>>>>> >>>>>>>> >>>>>>>>>l20 b block (4cyl), with navara 2.4 crank,z18 efi head, T3 >>>>>>>>> >>>>>turbo@10 >>>>> >>>>>>>psi, >>>>>>> >>>>>>>>>ivan ttighe cam,boost retard dizzy,v8 commodore throttle >>>>>>>>> >body > >>>and >>> >>>>>>>toyota >>>>>>> >>>>>>>>>7mgte injectors.......... >>>>>>>>> >>>>>>>>> mark k >>>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>>> >>>> >> > > --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]/ ---------------------------------------------------------------------
