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#61 Re: Building A Monster L20b
Nissan4Eva Posted on: 2005/10/27 0:01
Quote:

pro-240c wrote:
turbo or NA?

Z24 crank with machined counterweights, 89mm bore, i think KA24DE pistons and i'm not sure which rods.

ported A87 head or V91 (200B gas) with double valve springs, 76degree cam and twin 45s on a twin SU manifold to keep with class regs. nice big valves too (L26 or L28 turbo) and datsport headers.


now i have access too all those things...r the N/a L28 vavles the same size?
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#62 Re: Building A Monster L20b
dattoman_1000 Posted on: 2005/10/27 13:27
Why build one when they pop up for sale from time to time
This car used to be fast before it dropped a balljoint and speared off into the trees
Some nice parts for sale though

FOR SALE:
Datsun competition components ex 180B.
Datrally Developments L20B Engine approx 205HP+ at flywheel $3,500. Nismo option 1 gearbox $3,000. Nismo R180 LSD $1,500. Fully adjustable, rose jointed, disc brake rear end complete $1000 (suit most IRS Datsuns) . Front struts with 4 spot callipers $500 (pair).
Tom van Kann
Phone wk (08) 9244 2404
Email tom@supplysolutions.com.au


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#63 Re: Building A Monster L20b
matbighat Posted on: 2005/10/28 1:32
Quote:

pro-240c wrote:
turbo or NA?

Z24 crank with machined counterweights, 89mm bore, i think KA24DE pistons and i'm not sure which rods.


This LZ hybrid has become legendary thanks to the web: lots of people refer to it or claim to be building one, but I only know of one guy (aside from a baja race team) who actually built it, and that guy sold that motor to me, so I know what it's about, and I can tell you it's best suited for an baja race truck which it was originally conceived.
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#64 Re: Building A Monster L20b
Nissan4Eva Posted on: 2005/10/28 2:36
why is that?? to much torque
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#65 Re: and unicorns and other mythical creatures...
pro-240c Posted on: 2005/10/28 4:57
Quote:

Nissan4Eva wrote:

Q
why do ppl put the Z24 crank in the L20b block, why just not use the L series head on the Z24 block??

Is the Z24 crank a direct fit into the L20b block???


you need to machine the counterweights down to make it all fit - but yes, same bearing spacing i;m led to believe.

i did a ton of research on this before i went with a turbo L18 instead.

most people don;t put the L20B head on the Z24 because class regs stipulate orginal block and head.

that said, i rememebr Baz saying something about a worked L20B being quicker than the 2.4L...
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#66 Re: and unicorns and other mythical creatures...
matbighat Posted on: 2005/10/28 8:26
It's got torque no question. But it's a slow revver that runs out of steam leaving you without a wide powerband. But hey, it does do okay in the autox where throttle response is more important than revability.
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