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Nissan4Eva
Building A Monster L20b
#1
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Whats the best way(s) to get all u can from a L20b??

for rallying and circuit racing.

thanks.

Posted on: 2005/6/13 19:15
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pro-240c
Re: Building A Monster L20b
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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.

Posted on: 2005/6/14 2:46
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Nissan4Eva
Re: Building A Monster L20b
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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.


It Will be N/A.

Will that set up get it to a 2400cc. what sort of hp and lb/ft shouold that produce???

Posted on: 2005/6/14 4:27
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Nissan4Eva
Re: Building A Monster L20b
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z24 crank........What cars(year of car etc) Can i find the engine to obtain the crankshaft.

thanks alot.

Posted on: 2005/6/14 4:48
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matbighat
Re: Building A Monster L20b
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Better to use a z22 crank, especially if your on a budget, since it don't need no special machining.

Check out this.

Posted on: 2005/6/14 5:34
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killer1200
Re: Building A Monster L20b
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At the end of the day it all comes down to how much you want to spend.So its hard for people to give you ideas with out know the $$'s you want to pay.

Posted on: 2005/6/15 17:54
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Nissan4Eva
Re: Building A Monster L20b
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well i dont know actually how much i will spend..

lightened crank 150(standard crank)
rods lightened and balanced 150
pistons 400

All that is in US$$....thats all i know 4 sure im doing on the L20b.

But i would like about 220bhp wid plenty torque to spare.

Thanks.

Ps...lets us deal with building a good 2000cc then i can think about the 2.4.

Posted on: 2005/6/16 1:23
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pro-240c
Re: Building A Monster L20b
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nissan only "just"managed 200hp out of their L20Bs in their racing years - ford only managed 185hp out of their 2.0L escorts!

so with a stroker and their lesser ability to rev, you prob won't be able to get more than 200hp - but the power and torque under redline will be more than enough to compensate

Posted on: 2005/6/16 2:36
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Nissan4Eva
Re: Building A Monster L20b
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Quote:
nissan only "just"managed 200hp out of their L20Bs in their racing years - ford only managed 185hp out of their 2.0L escorts!


Only 200hp so what sort of torque will the motor have???

2l pinto escorts make around 200-220bhp now wid a good set of torque.

Posted on: 2005/6/16 3:06
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pro-240c
Re: Building A Monster L20b
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yeah - 200hp NOW - not 30years ago when it mattered!

i have no idea on the torque available sorry - i have only just started to look into building an engine like this, let alone having driven with one or a few.

i dare say it would be impressive for an NA engine - but still be less than a good turbo/super setup (carby or injection).

Posted on: 2005/6/16 4:02
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