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b18c5 or b20 with a type r head...which will produce more power?????

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Old Sep 30, 2002 | 10:37 AM
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Default b18c5 or b20 with a type r head...which will produce more power?????

Can some one who knows give me an answer on what would give more power from a b18c5 or b20 with a type r head??
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Old Sep 30, 2002 | 10:48 AM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (Itr2000)

a B20/R hybrid will make more power ....if tunned right ..in somewere in the area of 220 hp 150 lb/ft of torque ....but it has to be built right ..... http://www.importbuilders.com
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Old Sep 30, 2002 | 12:09 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (Itr2000)

B20/ITR head will walk all over a similarly tuned ITR setup.

no joke.

a B20 GSR setup walked all over my GSR setup with similar mods.... very disturbing
but, it was a good learnig experience that there is not much of a replacement for displacement, so go visit http://www.importbuilders.com !
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Old Sep 30, 2002 | 12:49 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (owen_the_soyboy)

Other than doing a b20vtec swap is there anyway to gain torque in a Honda motor? Oh, Turbo-aaa..........
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Old Sep 30, 2002 | 12:52 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (4-1-1)

Other than doing a b20vtec swap is there anyway to gain torque in a Honda motor? Oh, Turbo-aaa..........
H22a. I got 145 at the wheels stock
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Old Sep 30, 2002 | 02:20 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (4-1-1)

one word....... "blown".

ITR with jrsc is a wicked setup.
I've seen numerous ITR/jrsc setups that are in the 220whp/160ft-lbs realm.
It will be a street terror, with a torque curve similar to that of a medium displacement 6 cylinder. Plus, I've got the install down to about 4 hours, so I can help you drop it in. You just have to pick up the beer
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Old Sep 30, 2002 | 02:47 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (hypa)

one word....... "blown".

ITR with jrsc is a wicked setup.
I've seen numerous ITR/jrsc setups that are in the 220whp/160ft-lbs realm.
It will be a street terror, with a torque curve similar to that of a medium displacement 6 cylinder. Plus, I've got the install down to about 4 hours, so I can help you drop it in. You just have to pick up the beer
Beer for the install, thats what I am talking about!!
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Old Oct 5, 2002 | 02:23 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (Smitdog)

resleeve your b18c5 block.
you have a bad *** crank already that can rev really high
with less worries about reliability.
oh yah..u already got the oil squirters too...
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Old Oct 5, 2002 | 02:27 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (EVOL)

the b20 will give more power like said, but i would rather keep the type r motor itself
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Old Oct 5, 2002 | 02:37 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (paste)

ok so the answer would be. keep the itr block that says b18c5 and the vin numbers match.
resleeve the block stroke it out and you to can have the characteristics of a b20/vtec but with the reliability and the numbers that make it look like a lil b18c5. no one would know since you cant look inside the motor and you will can have both.
hmm sounds like a splendid i dea i think i will.
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Old Oct 5, 2002 | 02:54 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (eviltwin)

A good block for power is a GSR or Type-R block with an LS crank in it...

That is better than CRV block or LS because of the girdle.

But its not nec absolutely. We have taken both to 9500 RPM no problem

Jeff
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Old Oct 5, 2002 | 03:14 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (ImportReview)

when you have stroked one of these wonderful gsr or type r blocks have you ever used a harmonic balancer pulley to absorb any vibration that may cause harm to the oil pump? if not how do you go about spinning these motors to 9500 with out causeing any detrimental vibrations to the crank that can wear an oil pump down?
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Old Oct 5, 2002 | 05:48 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (eviltwin)

lightened and knifed crank. completely balanced rotating assembly including clutch and lightened stock balancer/pulley. probe light weight rods. It will spin out real smooth.

If it was my motor I would not put a ls crank in a b18c the power band is much flatter and longer with the stock crank.
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Old Oct 5, 2002 | 07:25 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (hypa)

hey there's a northern We-Todd-Did.....all he wants is beer!!!

one word....... "blown".

ITR with jrsc is a wicked setup.
I've seen numerous ITR/jrsc setups that are in the 220whp/160ft-lbs realm.
It will be a street terror, with a torque curve similar to that of a medium displacement 6 cylinder. Plus, I've got the install down to about 4 hours, so I can help you drop it in. You just have to pick up the beer
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Old Oct 5, 2002 | 08:05 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (Chad)

i beleive they would be similar.. just buy a b18 and bore it. those b20s are expensive.... oooooh speakin of b18 blocks. i got one for sale
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Old Oct 5, 2002 | 08:11 PM
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Default Re: b18c5 or b20 with a type r head...which will produce more power????? (baonest)

Assuming you rev both to the same RPM, the b20 will make more hp, but not much more.
However, if you rev a b20 to 8,400rpm like its a b18, everything is moving that much faster(due to the stroke), and the stress on components grows exponentially...

The smartest bet would be take wichever block is cheaper, and spend your money in flywheel, cams, header, and compression.

I bored my 289 .060 over and didn't notice a difference.



[Modified by jond, 12:13 AM 10/6/2002]
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