85mm block 95mm stroke....11:5:1 comp pistons....which would be more productive....this setup with a b16 head or a gsr head

 

the gsr head has a smaller combustion chamber which will bump your compression ratio up.

 

the smaller cc on the gsr head will bump your CR .3...other than that the only diffrence is the selection of intake manifolds

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hisproduct &raquo;</TD></TR><TR><TD CLASS="quote">85mm block 95mm stroke....11:5:1 comp pistons....which would be more productive....this setup with a b16 head or a gsr head</TD></TR></TABLE>

95mm stoke huh? thats pretty big..

it depends on your setup.. there is not right or wrong, I would say gsr..
it flows more anyway..

and to who those who wanna say im wrong put it on a flowbench. then you will see

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bthereforyou18 &raquo;</TD></TR><TR><TD CLASS="quote">
and to who those who wanna say im wrong put it on a flowbench. then you will see</TD></TR></TABLE>

I have. The difference is neglible, at best. Theres more to cylinder head potential than raw CFM flow numbers.

 

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

I have. The difference is neglible, at best. Theres more to cylinder head potential than raw CFM flow numbers.</TD></TR></TABLE>

Fank you. If you're thinking about doing ANY headwork at all, any minuscule difference between the two will be eliminated anyways. In one of the last honda-tuning issues, the one with the 150 hp/L build, Larry Widmer of Endyn even admitted that he changes his mind on which head he likes better more often than he changes his socks.

 

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

I have. The difference is neglible, at best. Theres more to cylinder head potential than raw CFM flow numbers.</TD></TR></TABLE>

exactly, but to many many people on H-T they think the si head flows more but really it doesn't.. I was just making the point

to the OP: search there is plenty of **** on this subject

 

If you have both heads to choose from in the same condition and any manifold, I would say gsr as I feel it has a slight advantage on the port shape for low r/s engines. As every one else stated though: It is a miniscule difference

 

If you plan on porting the head which I would hope you'll do considering 85x95, I'd go B16 just because of you selection of intake manifolds.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kpowerdhatch &raquo;</TD></TR><TR><TD CLASS="quote">If you plan on porting the head which I would hope you'll do considering 85x95, I'd go B16 just because of you selection of intake manifolds. </TD></TR></TABLE>

i couldnt agree with that more.

 

B16 is better with ______________ and P72 is better with _____________.

Insert top secret Honda engine builder knowledge above.

Cosworht Engineering

No PM's re this please unless you are willing to cough up some serious dough.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Master of the Universe &raquo;</TD></TR><TR><TD CLASS="quote">B16 is better with <FONT COLOR="red">sharp inlet dividers</FONT> and P72 is better with <FONT COLOR="red">variable flow bench room ceiling height</FONT>. </TD></TR></TABLE>

 

This question is bogus. Why would you go thru the expensive of a 95 mm build and use a stock head?

If you are building the head up it still does not matter.

 

Contrapted Combustion

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">This question is bogus. Why would you go thru the expensive of a 95 mm build and use a stock head?

If you are building the head up it still does not matter.</TD></TR></TABLE>

Yeah seems pretty hypothetical.

In an "ideal" world I would be able to guess the next winning Mega Lotto numbers and then buy a couple CNC machines and buy some K motors and trick those out to 600+bhp NA and then fly DonF out here to build them and then give one of them away to a worthy H-T All Motor member, preferably one that is "open minded" and does need a big name brand.

 

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

In an "ideal" world I would be able to guess the next winning Mega Lotto numbers and then buy a couple CNC machines and buy some K motors and trick those out to 600+bhp NA and then fly DonF out here to build them and then give one of them away to a worthy H-T All Motor member, preferably one that is "open minded" and does need a big name brand. </TD></TR></TABLE>

LOL

 

thanx alot for all the help guys

 

I was under the impression that the GSR head didnt begin to surpass the B16 flow until some rediculous amount lift.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by smileycvc &raquo;</TD></TR><TR><TD CLASS="quote">I was under the impression that the GSR head didnt begin to surpass the B16 flow until some rediculous amount lift.</TD></TR></TABLE>

gsr for the the quench pads and LMA's.

 

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

gsr for the the quench pads and LMA's.
</TD></TR></TABLE>

B16's got the LMA update the same time the GSR's did