----- Original Message -----
Sent: Wednesday, January 16, 2002 2:10
AM
Subject: Re: stroke mathematics
hi , look your thinking tooo
hard , like i said, you will need z series pistons and l20b rods
if u want to put a z24 crank in a l20b. (z series pistons to whatever size
takes your fancy)
----- Original Message -----
Sent: Tuesday, January 15, 2002 8:18
PM
Subject: stroke mathematics
guys I'm trying to teach myself how to do all
the mathematics involved in deciding what internal parts to use
and I seem to be stuck
Z24 crank is 96mm stroke
Z20 block is 227.45mm height
and most people use the L20 rods for this
combo, they're 145.9mm
when I wanna work out what height pistons
I need is it rod mm plus piston mm should equal block height, or does the
stroke of the crank come into it some where
I was doing 96mm + 145.9mm and coming up with
241.9mm which was way above deck height even without adding pistons on top
of that, then I realised the 96mm stroke of the crank is from the centreline
of the crank to the centre of the part where the con rod bolts onto the
crank (HAHAHA forget the name) so if I add that in I'd have to subtract 96mm
from the deck height anyways, hmmmm I really should have thought about this
some more before writing this email hahahaha it's all sorta coming clear as
I'm typing it.
I'm assuming therefore block height is
measued from centreline of the crank to the deck height, so when working out
what combo of parts I need I just add rod + pistons and try to get a combo
that is equal to the block height?
Dave
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