b18c head

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Originally Posted by tinkerbell

why?

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i've been told this by several people who's opinions i actually trust. something to do with it being a down-draft design...
i'll be tacking on of them on the b20.

angle of the ports?

yeah, that is what i thought, thanks for confirming...

does it need to be ported to take advantage of this, or is it 'better' stock?

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Originally Posted by spardikis

look at the civic delsol gen2 (b16a2) head as it has pretty good (nearly the same as type-r) flow properties but a little less comp than the b18c. Also with the poor mans type-r look at your bottom end reliability....
balancing internals, different rod bolts and rods, oil reliefe valves, etc etc.... It's pretty hyped up and good if done properly, but look at the negatives as well. Its probably cheaper and more reliable just to go for the vtir bottom end with civic del sol head-combo. then thin gasket to rais comp.

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whats a civic del sol gen 2

american name for EG CRX

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Originally Posted by tinkerbell

american name for EG CRX

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Um, i think he was referring ot teh generation 2 statement.

AS there wasnt a gen 2 del sol

well corect me if im wrong, but im sure they are a 2nd gen engine??? thats what i have been led to believe... but any way its the pr3-2 head i was refering to


and i meant 'CRX' del sol not civic! my bad...

yeah, the wording was bad, but you did say "gen2 head"

which, for the record, is exactly the same casting as a gen1 B16A head...

the basic diff., between gen 1 and gen 2 B16A engines is pistons and valvetrain...

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Originally Posted by rainy dayz

ok yes i am new here but before you flame me and tell me to search i tried and i didnt find anything helpful

basically i have been reading on the 'poor mans type r' with b18c head on b16a and i was thinking of doing this on my EK.

how much would i be looking at for the head?
would i need to change the intake manifold?

thanks for yor help guys :thumbsup:

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all parts need to work harmoniously together. imho, it is better off getting a used type r engine.

sure doing and assembling yourself is a lot of fun but if you dont know what you are doing and dont know much abt internals and doing all the prep work, you might cost you more in the end.

intake manifold? why do people change it? becos it effect the peak torque of your engine. the shorter it is (as in type r IM vs B16A), it placed the peak torque at higher band of the rpm.

is it useful? yes if you spend a lot of time at high end esp if you racing. when u race, ure always almost at red line so it is good for you that you are at your peak torque band.

having said that, you need a matching gearbox that will support engine characteristic.

so imho if you dont know whats happening, just get a used type r engine and fit it with proper gearbox and save you a lot of headache.

open to comment. :D

B18C2 + B16A cylinder head with no piston change = low compression slug.

yes, a masssive 9.8:1 cr slug, lol!

but a B18C2 + B16A head with B16A pistons = high compression "poor man's Type R" @ 11:1 cr

have a play here kiddies : http://www.bojangs.com/calculator/

http://www.c-speedracing.com/howto/c...c/compcalc.php

heres annother one as well...

Yep - down draft design + rpm > 10k (think about ignition lag time and what happens past 10k - theres a good SAE paper on it) added with the extra tumble of the B18 head and you have a winner.

Less than 10k and the B16 head has better flow/turblence characteristics.