Is it worth it...i mean buying a type r head????

my set up will be....

SKUNK2 valve springs, retainers
SKUNK2 Stage 2's
REV valves
SKUNK2 Intake mani

ctr pistons in a b16 block for now
untill im finish building my b18c1 block

misc..
obd2 to obd1
p28 mugen chip
V.2 vfac

AEM v2 cold air

HIGH tech headers 2.5

apexi N1 exhaust ????

 

You can pick up a brand new bare jdm itr head from city-speed.com. They are only 579.00. I bought one for my ls/vtec setup and am running almost the exact same valvetrain,ect. The itr head was ported by honda from the factory. It flows better than the other b18/b16 heads, so it should make more power. Plus honda ported and polished it a little from the factory, and did so to specs than optimize airflow, ect. Since your upgrading everything in your valve train, you may as well buy a bare head or one with just the rockers,ect.

Also, ctr pistons will give you a rather high compression ratio, so buying a new head will help you out b/c you won't have to mill it any. If you buy one used you will need to mil it .10-.20 or so to ensure a good seal. This will increase your compression even more.

 

ok thanx for the info...any more posts??

 

I would say buy another b series head (depending on IM setup) and have it ported with the money you save
<------looking for another head b/c I didnt make enough power with the ITR head and dont want to tear down a ITR head with 40K

 

go with city-speed they r nice guys, they will work with u and have respectable prices.

 

b16 is same as itr head but used more for racing

 

if you are already replacing the valve springs and retainers then just get a pr3 b16 head.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brol1k &raquo;</TD></TR><TR><TD CLASS="quote">b16 is same as itr head but used more for racing</TD></TR></TABLE>
B16 head is not the same as an ITR head

Go share youR STI knowledge to a Subaru site insted of sharing wrong info here

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brol1k &raquo;</TD></TR><TR><TD CLASS="quote">b16 is same as itr head but used more for racing</TD></TR></TABLE>

the casting is the same but the ports on teh itr make the air flow more free.

 

maybe if this helps you

https://honda-tech.com/zerothread?id=1026405

 

Both PR3 heads, ITR factory port and polished.

You should just get a GSR/B16 head and send it out for real headwork.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NewRocB21 &raquo;</TD></TR><TR><TD CLASS="quote">
B16 head is not the same as an ITR head

Go share youR STI knowledge to a Subaru site insted of sharing wrong info here </TD></TR></TABLE>

omg.... Retard.

B16 and ITR heads are almost identical as far as i know. As people metioned a slight port job.

Some of the valvetrain components are slightly different as well..

Correct me if i'm wrong

 

You are correct, the old B16 heads have slightly different LMA's aslo.

 

some of the valvetrain components? how bout all of them except the retainers....

 

so is it worth it or no????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NewRocB21 &raquo;</TD></TR><TR><TD CLASS="quote">
B16 head is not the same as an ITR head

Go share youR STI knowledge to a Subaru site insted of sharing wrong info here </TD></TR></TABLE>
the casting is the same but the ports on teh itr make the air flow more free.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NewRocB21 &raquo;</TD></TR><TR><TD CLASS="quote">
B16 head is not the same as an ITR head

Go share youR STI knowledge to a Subaru site insted of sharing wrong info here </TD></TR></TABLE>
3 against 1 i guess im not the only one who thinks they are the same.you and your comments are just like your avatar 1 big jacka#$.i recommend you should step.oh and check your spelling i recommend hooked on phonics bro

 

calling the b18c5 head the "same" as a b16 is like calling a b18c5 block the same as a b18c1. it may look the same at first but its really a whole lot different.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H.A.R.T B16a2 &raquo;</TD></TR><TR><TD CLASS="quote">so is it worth it or no????</TD></TR></TABLE>

No.. Get a B16 head and have it ported.

DONT USE SKUNK 2 SPRINGS, go with Crower or Ferrea.

https://honda-tech.com/zerothread?id=984792 &lt;--

 

defenitly worth it

 

Bert-O posted pics of the ITR head... and from what i know, i can tell you that the Factory 'Port-Polish' isn't really a port and polish at all. Porting refers to the opening up of the port to an enlarged size... and polishing is, well, polishing.

The only thing the factory did was clean up the short side radius and the bowl area around the back side of the valve; and from the looks of it, they only went up as much as necesary (about 3/4")

So... is it worth it? In MY opinion... no. But thats just me... i've been porting cylinder heads for about 5 years now, and i would never pay anyone to do my work.

I think you should buy a cheap b16 head... send it to PortFlow, and have them do one of the competition port jobs... you'll love it.

 

Itr's have blended seats and a mild bowl port... Different springs and Lma's...as welol as different intake valves. If you plan on any aftermarket porting then dont buy another itr head as it will be a waste of extra money..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Micro &raquo;</TD></TR><TR><TD CLASS="quote">Bert-O posted pics of the ITR head... and from what i know, i can tell you that the Factory 'Port-Polish' isn't really a port and polish at all. Porting refers to the opening up of the port to an enlarged size... and polishing is, well, polishing.

The only thing the factory did was clean up the short side radius and the bowl area around the back side of the valve; and from the looks of it, they only went up as much as necesary (about 3/4")

So... is it worth it? In MY opinion... no. But thats just me... i've been porting cylinder heads for about 5 years now, and i would never pay anyone to do my work.

I think you should buy a cheap b16 head... send it to PortFlow, and have them do one of the competition port jobs... you'll love it. </TD></TR></TABLE>


he is correct!

As those pics I took and made a thread, it clearly shows what comes from factory is very minimal. As Tbone mention, only benifits being that you get a new head, new LMAs, new INT valves, ITR valvetrain. Basically all new rather than gettting a B16 that has a unknown history.

However, if you are planning on having port work, or run stiffer valvetrain, it would be idealy to just to purchase a used head.

Agian, its your decision and based on the info that was given here. You choose what you feel comfortable with.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tbone &raquo;</TD></TR><TR><TD CLASS="quote">Itr's have blended seats and a mild bowl port... Different springs and Lma's...as welol as different intake valves. If you plan on any aftermarket porting then dont buy another itr head as it will be a waste of extra money..</TD></TR></TABLE>
totally agree, if you are going with an aftermarket valvetrain and/or an aftermarker port job it is not worth it, just save your money and get a b16...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CRXDelSol! &raquo;</TD></TR><TR><TD CLASS="quote">

omg.... Retard.

B16 and ITR heads are almost identical as far as i know. As people metioned a slight port job.

Some of the valvetrain components are slightly different as well..

Correct me if i'm wrong</TD></TR></TABLE>

hey ******* slightly different and being the exact same is two different things.OK FUCKTARD

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by brol1k &raquo;</TD></TR><TR><TD CLASS="quote">
3 against 1 i guess im not the only one who thinks they are the same.you and your comments are just like your avatar 1 big jacka#$.i recommend you should step.oh and check your spelling i recommend hooked on phonics bro</TD></TR></TABLE>

And for you Bro-whatever see your previous posts you can't ******* spell-(see his other posts) and you seem like a jerk thats just out to make trouble. As i stated before sice you are so interested in your STI subaru go to a subaru website.