Has anyone ever tried to mate a b18c1 head on to a b18c5 block (usdm) with a 2 layer head gasket? What if the head is milled .012"?

 

But...why? And if it's "to be different"

 

You should have no problems , a friend of mine has a B18C5 head on a B18C1 block and he didn`t had any problems , so you should be fine .

 

I would clay it. /thread

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sscguy &raquo;</TD></TR><TR><TD CLASS="quote">But...why? And if it's "to be different" </TD></TR></TABLE>


Straighter shot for incoming air/ fuel (stock), and raises compression due to smaller combustion chamber.....

 

Straighter shot? Are the intake ports straighter or something?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sscguy &raquo;</TD></TR><TR><TD CLASS="quote">Straighter shot? Are the intake ports straighter or something?</TD></TR></TABLE>


.....better angle, iirc.

 

How about that, I never knew that. I was under the assumption the GSR head was inferior to the ITR/B16 head. on me for being a jerk then.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sscguy &raquo;</TD></TR><TR><TD CLASS="quote">How about that, I never knew that. I was under the assumption the GSR head was inferior to the ITR/B16 head. on me for being a jerk then.</TD></TR></TABLE>

Hmm yea. why did you think that though?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by greasemonkee &raquo;</TD></TR><TR><TD CLASS="quote">Has anyone ever tried to mate a b18c1 head on to a b18c5 block (usdm) with a 2 layer head gasket? What if the head is milled .012"?</TD></TR></TABLE>

There will be no problems, it's been done numerous times in the past with much more milling.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sscguy &raquo;</TD></TR><TR><TD CLASS="quote">I was under the assumption the GSR head was inferior to the ITR/B16 head.</TD></TR></TABLE>

P72 intake runners &gt; PR3 intake runners
PR3 combustion chamber &gt; P72 combustion chamber

 

The head is fully reworked. From c-speed, i'm getting around a 11.4 ish CR. So exactly how much more could you go? I doubt I would mill the head more, but I'm just curious. I was under the impression that combination would be getting extremely close.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall &raquo;</TD></TR><TR><TD CLASS="quote">P72 intake runners &gt; PR3 intake runners
PR3 combustion chamber &gt; P72 combustion chamber</TD></TR></TABLE>

I'll remember that. I must've been getting something screwed up in the ol' memory bank there. Maybe potential for machining/porting/polishing?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sscguy &raquo;</TD></TR><TR><TD CLASS="quote">I'll remember that. I must've been getting something screwed up in the ol' memory bank there. Maybe potential for machining/porting/polishing?</TD></TR></TABLE>


.....fully ported/ polished, etc there really isn't much of a difference.

fwiw, most of the pro guys use b16/ itr head..... but erick aguilar was using a gsr head iirc for a while..... with a majorly hogged out gsr IM.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eva01 &raquo;</TD></TR><TR><TD CLASS="quote">I would clay it. /thread</TD></TR></TABLE>

Clay, who said anything about clay? Bitch you playing with Playdough?

I vote for checking clearances yourself for your particular setup.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Marlon88 &raquo;</TD></TR><TR><TD CLASS="quote">You should have no problems , a friend of mine has a B18C5 head on a B18C1 block and he didn`t had any problems , so you should be fine .</TD></TR></TABLE> this is a different setup. yes it will bolt up and everything...just have to worry about timing, and compression issues with fuel...thats all. this setup actually works pretty good. also a b16 block with a gs-r head...veeeerrrryyy interesting haha.

 

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


Straighter shot for incoming air/ fuel (stock), and raises compression due to smaller combustion chamber..... </TD></TR></TABLE> yup..due the the squareness of it

 

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

There will be no problems, it's been done numerous times in the past with much more milling.

P72 intake runners &gt; PR3 intake runners
PR3 combustion chamber &gt; P72 combustion chamber</TD></TR></TABLE>

How exactly is the PR3 combustion chamber&gt;P72? The P72 has .2 higher compression hence more power potential. I do agree with your other point.

As for clearance issues with stock ITR cams i'm sure he'll be fine. If he decides to switch to Jun or Toda cam's i'd definitely check the clearances.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GZR4DR &raquo;</TD></TR><TR><TD CLASS="quote"> If he decides to switch to Jun or Toda cam's i'd definitely check the clearances.</TD></TR></TABLE>

 

meaning more room.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GZR4DR &raquo;</TD></TR><TR><TD CLASS="quote">

How exactly is the PR3 combustion chamber&gt;P72?</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote">meaning more room.
</TD></TR></TABLE>
for what?...room there isnt needed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TodaFiend &raquo;</TD></TR><TR><TD CLASS="quote">
for what?...room there isnt needed. </TD></TR></TABLE>

more room inside combustion chamber

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vtec.dc2 &raquo;</TD></TR><TR><TD CLASS="quote">

more room inside combustion chamber</TD></TR></TABLE> fooorrr?? more mice, and farriswheels?

 

Gotta tighten that quench.