yes just like topic title states.

noticed all of them were using gsr head.
why not b16/ITR?

 

the reason that they are all using gsr heads is because that is what was supplied to all the builders by the magazine company.... the company supplied every1 with a dealer issue gsr long block...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flow-zilla &raquo;</TD></TR><TR><TD CLASS="quote">the reason that they are all using gsr heads is because that is what was supplied to all the builders by the magazine company.... the company supplied every1 with a dealer issue gsr long block... </TD></TR></TABLE>
good stuff
always wondered why they didn't use the b16 head.

i also noticed dynamic autosports opened up the chambers to 84.5... started a thread about that awhile ago...just about everyone said it was a no no...better off not doing it..wonder how it'll work for their setup.

 

PROB. NOT THAT GOOD THE THEORY OF OPENINGTHE CHAMBER IS GOOD BUT WITHOUT PROPER PISTONS ITS POINTLESS UNLESS ITS TURBO

 

Yeah i noticed that too, i was like what the hell, thanks for the clarification.

 

hmmm. interesting.
good info omni

 

ive heard the stock porting on the b16 and itr made it hard to acheive the same hp results with the gs-r like stock they messed up but with the gs-r you can port it correctly or something like that meaning you put out some more powaA with the gs-r

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zad5 &raquo;</TD></TR><TR><TD CLASS="quote">ive heard the stock porting on the b16 and itr made it hard to acheive the same hp results with the gs-r like stock they messed up but with the gs-r you can port it correctly or something like that meaning you put out some more powaA with the gs-r</TD></TR></TABLE>

i also heard that the b16 has no stock porting and the itr has stock porting but the gsr does not have any stock porting and the gsr has pentroof chambers while the b16 and type r head do not but i also hear you can make more power out of an itr or b16 head so who's right

 

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

i also heard that the b16 has no stock porting and the itr has stock porting but the gsr does not have any stock porting and the gsr has pentroof chambers while the b16 and type r head do not but i also hear you can make more power out of an itr or b16 head so who's right</TD></TR></TABLE>

Well this tread is now headed into a major debate

 

The chamber was opened to unshroud the valves, and still keep a nice compression...you gotta realize that these are pumpgas engines...11.5:1 or so.


Modified by Suprdave at 10:46 AM 8/26/2004

 

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

Well this tread is now headed into a major debate </TD></TR></TABLE> hot damn keep em coming...

 

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

Actually import tuner only supplied a new gsr short block (no cylinder head) to every contestant. all other parts have to be supplied by the builders. just to clarify.

it seems everyone has optioned for the GSR head. </TD></TR></TABLE>


im not sure if i missed it.
omni, wernt you in the b series competittion?
i saw you in the first issue of the shootout, but then in the current months issue
you were not in it.

 

EVOL yea sheyat i honestly dont know which head is better when both are ported. there are many different way of porting and ive read a big article saying how cfm numbers dont really mean much when comparing because it doesnt have the same situation as a running engine like too much variables in there. the port job people do is highly dependent on the cams and other stuff so you know im not really sure lol. like you said i think its because of how the pentroof chamber in teh gs-r but im not too sure everyone is using the gs-r head in the test for a reason maybe omniman could come in and explain some more on why he chose the gs-r head. i always knew nothing can beat teh gs-aaaR

 

The GSR is said to have a slightly smaller chamber, and ports designed for more midrange than the PR3.

 

What i like about gsr heads is that the casting is alot cleaner especially where the seat meets the head. But one thing i dont like about gsr heads is that hole in #1 or #4 exaust port.


Modified by Rusty Shackleferd at 7:10 PM 8/26/2004

 

lazy port...high port...blah blah


haven't caught the magizene yet..guess i mgiht just go pick it up on the way to the shop tonight.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rusty Shackleferd &raquo;</TD></TR><TR><TD CLASS="quote">Want i like about gsr heads is that the casting is alot cleaner especially where the seat meets the head. </TD></TR></TABLE>
can you machine the b16 head or something or mill it to fix this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EVOL &raquo;</TD></TR><TR><TD CLASS="quote">
can you machine the b16 head or something or mill it to fix this?</TD></TR></TABLE>

Yes, when you get the head ported it will get reshaped and blended in so there wont be any imperfections. Pretty much the same thing that honda does to the type r heads.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flow-zilla &raquo;</TD></TR><TR><TD CLASS="quote">the reason that they are all using gsr heads is because that is what was supplied to all the builders by the magazine company.... the company supplied every1 with a dealer issue gsr long block... </TD></TR></TABLE>

omni is right it was just a short block and the reason that rs was using the gsr the gsr was because of the quench pads have shown to help aid against detonation

 

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

i also heard that the b16 has no stock porting and the itr has stock porting but the gsr does not have any stock porting and the gsr has pentroof chambers while the b16 and type r head do not but i also hear you can make more power out of an itr or b16 head so who's right</TD></TR></TABLE>
its not that gsr's arent good heads its just that most head porters preffer early casting b16 heads becasue for one reason is that there is a casting shift that allows for alot of widening of the short turn and since the b16 has a high port it also allows for short turn work which can be a blessing when stretching for extra ponies..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by flow-zilla &raquo;</TD></TR><TR><TD CLASS="quote">
since the b16 has a high port it also allows for short turn work which can be a blessing when stretching for extra ponies..</TD></TR></TABLE>

i thought the GSR had the higher port... i have heard though that people prefer the old 1g castings the uglier the better even cause theres more material there for re shaping

 

Omni: What is happening to the motors after the comp?