Hi all,

I have a JDM EK9 B16B Engine and have recently acquired a bottom end internals from a JDM ITR 98 Spec. I plan on using the ITR internals to stroke my B16B engine to a 1.8

AFAIK it all goes straight in but I'm am curious as to see what you would recommend for pistons. Should I use the ITR P73 pistons or go with the EK9 PCTX Pistons for the higher compression or would I have valve clearance issues?

If anyone has any relevant info on doing this type of swap i'd love to know.
Thanks,
Mark

 

bump... i want to know this aswell...

 

it will go in perfectly just use the itr pistons or the ctr's for added compression. the b16b block is the same as the itr and gsr ( p72 block ). hope this helps

 

Use the ITR pistons...I have a stroked B16b with ITR internals...you will love it

 

i would imagine that if you put the ITR complete(crank,rods, pistons) in the 1.6 block, you basically turn the b16b into a b18cR...or am i wrong

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by projectTeG &raquo;</TD></TR><TR><TD CLASS="quote">i would imagine that if you put the ITR complete(crank,rods, pistons) in the 1.6 block, you basically turn the b16b into a b18cR...or am i wrong</TD></TR></TABLE>

You are correct only slightly more aggresive in my poinion...having driven both motors

 

the B16B and B18C blocks have the same deck height. The B16B is basically a B18C with a B16 crank.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16b-EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">

You are correct only slightly more aggresive in my poinion...having driven both motors</TD></TR></TABLE>

And your opinion is pretty rediculous, because the only thing different about them would be the stamp on the block. I think even the cylinder head is the same between a CTR and JDM ITR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16sedan &raquo;</TD></TR><TR><TD CLASS="quote">

And your opinion is pretty rediculous, because the only thing different about them would be the stamp on the block. I think even the cylinder head is the same between a CTR and JDM ITR.</TD></TR></TABLE>



He can probably feel the extra 3degrees of duration on the CTR intake cam....

JDM ITR pistons is my vote too

 

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

He can probably feel the extra 3degrees of duration on the CTR intake cam....

</TD></TR></TABLE>

 

Hi all,

Thanks for the replys. My main concern is the EK9 PCTX Pistons having the higher compression.

Would I have valve clearance issues?
She is a daily runner so I need to keep her that way.

Would I see much gains by using the PCTX over the P73 or should I pick the in between and go for the P30's?

 

just run the itr pistons and mill the head a bit...maybe use a spoon or mugen 2 layer head gasket as well...if u want more compression.

 

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

He can probably feel the extra 3degrees of duration on the CTR intake cam....

JDM ITR pistons is my vote too </TD></TR></TABLE>

lol big time.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b16sedan &raquo;</TD></TR><TR><TD CLASS="quote">I think even the cylinder head is the same between a CTR and JDM ITR.</TD></TR></TABLE>

you thought right

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Si Jeff &raquo;</TD></TR><TR><TD CLASS="quote">The B16B is basically a B18C with a B16 crank.</TD></TR></TABLE>
ehhh not so much, little more balanceing involved but yeah i guess.

 

would you be able to use just the ITR crank? or would the length of the CTR rods be too much? also I thought the CTR head had a different valve angle than the ITR someone correct me on this

 

b16b and b18c are not the same b16b is like 15-1600cc b18c is like 1797cc two different motor. i would bore it out to 84mm you be like 1.8l and leave in the stock pistons you will gain some tq. build you head like gettin a better head package.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nokturnal_munkeeboy &raquo;</TD></TR><TR><TD CLASS="quote">b16b and b18c are not the same b16b is like 15-1600cc b18c is like 1797cc two different motor. i would bore it out to 84mm you be like 1.8l and leave in the stock pistons you will gain some tq. build you head like gettin a better head package.</TD></TR></TABLE>

the CTR and the ITR use essentially the same block and head, the difference is the b16b uses a different crank,rods, and pistons...you can put the ITR rods, piston and crank in the 16b's block and then you a ITR engine. with a b16b stamp

 

You have no idea what your talking about!

Please sell your car and and all your computer equipment. Then use that money to buy a gun and a bullet. Insert bullet into the gun and then insert the barrel of the gun in your mouth. Pull trigger!


My favorite part of your post was "i would bore it out to 84mm you be like 1.8l and leave in the stock pistons you will gain some tq." HAHAHA lmao

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nokturnal_munkeeboy &raquo;</TD></TR><TR><TD CLASS="quote">b16b and b18c are not the same b16b is like 15-1600cc b18c is like 1797cc two different motor. i would bore it out to 84mm you be like 1.8l and leave in the stock pistons you will gain some tq. build you head like gettin a better head package.</TD></TR></TABLE>

you need to stop talking like, now.

 

show me some proof that b16b and b18c5 have same deck height. then i will agree with you.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nokturnal_munkeeboy &raquo;</TD></TR><TR><TD CLASS="quote">show me some proof that b16b and b18c5 have same deck height. then i will agree with you.</TD></TR></TABLE>

http://www.zealautowerks.com/

2006 noob.

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

you need to stop talking like, now.</TD></TR></TABLE>

QFT

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

the CTR and the ITR use essentially the same block and head, the difference is the b16b uses a different crank,rods, and pistons...you can put the ITR rods, piston and crank in the 16b's block and then you a ITR engine. with a b16b stamp</TD></TR></TABLE>

QFT

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TwinOptiX &raquo;</TD></TR><TR><TD CLASS="quote">You have no idea what your talking about!

Please sell your car and and all your computer equipment. Then use that money to buy a gun and a bullet. Insert bullet into the gun and then insert the barrel of the gun in your mouth. Pull trigger!


My favorite part of your post was "i would bore it out to 84mm you be like 1.8l and leave in the stock pistons you will gain some tq." HAHAHA lmao</TD></TR></TABLE>

QFT

 

The B16B and B18C Type R Blocks are eseentially the same. The pistons, rods & crank are different.

The only difference between the ITR and CTR Head is essentially the cams. Infact I think its just the intake cam on the CTR has more duration.

As such I don't think i'm going to see much gains running the PCTX pistons so I think i'm goin to opt for the P73 and see if I can get my hands on a set of Spoon Pistons.

Any further recommendations?
Has anyone done this swap b4?
I'd love to hear how you went about it and if you ran into any problems.

Thanks.

 

i got some brand new in the box type r pistons for sale if your interested. pm

 

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



He can probably feel the extra 3degrees of duration on the CTR intake cam....

JDM ITR pistons is my vote too </TD></TR></TABLE>

Ha Ha you all got jokes...i said SLIGHTLY more aggressive

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16b-EJ8 &raquo;</TD></TR><TR><TD CLASS="quote">

Ha Ha you all got jokes...i said SLIGHTLY more aggressive</TD></TR></TABLE>

Well given that you could have a 11.7:1 comp ratio with pct pistons versus 11.1:1 with p73-00 pistons the CTR would be more agressive and add the slightly more agressive intake cam and youd probably see around a 3% increase in power over a run of the mill ITR with the standard 3 layer gasket....with a 2 layer your ctr frank would be around 12:1 which would almost be a 5% increase in power.....if we are saying 195 than at least a 5hp difference along with quicker response up to a 10hp advantage (12:1) with even quicker response in comparison

Can you feel a 5-10hp increase in an NA Honda? Some people swear they can....the response is another issue but I think we can all agree there that it will respond quicker than stock

Thats my take on it anyway

 

whats QFT mean?