is there a big difference between itr and gsr pistons i need your opinions is this a good way to go if rebuilding a b18c block all motor which way is the best to go

 

http://www.zealautowerks.com/

it will change compression ratio. for all motor you will want a higher CR.

 

ITR pistons will give basically an ITR block
Since you have a gsr head, your compression ratio will actually be a bit higher than a stock ITR engine.

Since you are new, take my advice, use the read 'search' button at the top right hand of the screen to search for answers before you post a question. I promise, 90% of the time, the question has already been answered and sometimes they have great listings of their mods and dyno charts to prove their builds success. Make sure when you're in the search feature you check both the "recent" box" and if no listings come up, then try the "archived" box. Good luck on the build

 

ITR all the way,if it ant a type r it ant a tight car!

 

gsr have higher bottom block compression then type r's? i was plannin to put type r pistons on with my gsr bottom block with stock rods..will it directly slapp on or what do i need to make it work.let me know .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2_916 &raquo;</TD></TR><TR><TD CLASS="quote">gsr have higher bottom block compression then type r's? i was plannin to put type r pistons on with my gsr bottom block with stock rods..will it directly slapp on or what do i need to make it work.let me know .</TD></TR></TABLE>

wtf are you talking about, only difference worth noting for CR between the GSR and ITR block is the higher compression pistons of the ITR block. no modification is needed to run ITR pistons on GSR rods, although i'd suggest getting .25 or .50 (mm) over pistons and honing the block to get a fresh sleeve surface for best breakin.

 

[freak] u [pejorative]g !!!thats wat i wanna kno .. ^mr all teg said that gsr have higher CR then type r stock.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2_916 &raquo;</TD></TR><TR><TD CLASS="quote">[freak] u [pejorative]g !!!thats wat i wanna kno .. ^mr all teg said that gsr have higher CR then type r stock. </TD></TR></TABLE>

Read it again, that is not what he said.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dc2_916 &raquo;</TD></TR><TR><TD CLASS="quote">[freak] u [pejorative]g !!!thats wat i wanna kno .. ^mr all teg said that gsr have higher CR then type r stock. </TD></TR></TABLE>

What I mean is that a gsr head on a gsr block with itr pistons (which is basically an itr block) will give you a higher cr than a itr block with an itr head because a gsr head has smaller combustion chambers, therefore .2 or so higher cr over itr.

 

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

What I mean is that a gsr head on a gsr block with itr pistons (which is basically an itr block) will give you a higher cr than a itr block with an itr head because a gsr head has smaller combustion chambers, therefore .2 or so higher cr over itr.</TD></TR></TABLE>

not really close, different crank rods, and block. it will be similar but its not basiclly an itr block, if your running all motor just get some b16 pistions, from RS machine. depends on what your plans are really.

 

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

not really close, different crank rods, and block. it will be similar but its not basiclly an itr block, if your running all motor just get some b16 pistions, from RS machine. depends on what your plans are really.</TD></TR></TABLE>

I think he means in terms of power, in which case I would agree. Cranks rods don't show up on the dyno.

 

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

not really close, different crank rods, and block. it will be similar but its not basiclly an itr block, if your running all motor just get some b16 pistions, from RS machine. depends on what your plans are really.</TD></TR></TABLE>

What is the MAJOR difference between GSR and Hype R rods, cranks, and the blocks that makes the Hype R so much better than a GSR bottom end?

 

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

What is the MAJOR difference between GSR and Hype R rods, cranks, and the blocks that makes the Hype R so much better than a GSR bottom end? </TD></TR></TABLE>
OH OH OH I KNOW *raises hand*........ its a trick question! all you need is the red type aww valve cover!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rebo0t &raquo;</TD></TR><TR><TD CLASS="quote">
OH OH OH I KNOW *raises hand*........ its a trick question! all you need is the red type aww valve cover! </TD></TR></TABLE>

Damn, you ruined it

 

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

Damn, you ruined it

</TD></TR></TABLE>
aww sorry.. here is a bunny. ouuu everybody look at the bunny.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rebo0t &raquo;</TD></TR><TR><TD CLASS="quote">
aww sorry.. here is a bunny. ouuu everybody look at the bunny. </TD></TR></TABLE>

That bunny totally makes up for it

 

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

What is the MAJOR difference between GSR and Hype R rods, cranks, and the blocks that makes the Hype R so much better than a GSR bottom end? </TD></TR></TABLE>

there is no major difference, the rods are a little lighter and the crank has counterweights to make it more stable at higher RPM's. thats about it, not a big deal. thats why i always hate to see someone swap their GSR swap for a ITR.

 

i did ctr and i love it ctr is the way to go in b18c1

 

what's your CR? What's the highest octane you have available to you at the pump? Here in cali, we only got 91.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">

there is no major difference, the rods are a little lighter and the crank has counterweights to make it more stable at higher RPM's. thats about it, not a big deal. thats why i always hate to see someone swap their GSR swap for a ITR.</TD></TR></TABLE>

Exactly, and when doing a build or specially when instally pistons, you should have the rotating assembly balanced so that makes up for the hype r crank being better balanced than a gsr. I hate it when these fools get all but hurt when I say a gsr with itr pistons is basically a hype r.

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

not really close, different crank rods, and block. it will be similar but its not basiclly an itr block, if your running all motor just get some b16 pistions, from RS machine. depends on what your plans are really.</TD></TR></TABLE>

 

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

Exactly, and when doing a build or specially when instally pistons, you should have the rotating assembly balanced so that makes up for the hype r crank being better balanced than a gsr. I hate it when these fools get all but hurt when I say a gsr with itr pistons is basically a hype r.
</TD></TR></TABLE>
You pay a higher price for p73/ITR, that's why people get butt hurt

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SlammedDC2 &raquo;</TD></TR><TR><TD CLASS="quote">
You pay a higher price for p73/ITR, that's why people get butt hurt</TD></TR></TABLE>

Don't get me wrong, there's nothing wrong with buying a realiable, oem itr block. But a gsr block with itr slugs, is basically an itr block in my opinion. For an all motor build, the stock gsr rods, and crank are just as good as itr's.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nate_2k5 &raquo;</TD></TR><TR><TD CLASS="quote">

there is no major difference, the rods are a little lighter and the crank has counterweights to make it more stable at higher RPM's. thats about it, not a big deal. thats why i always hate to see someone swap their GSR swap for a ITR.</TD></TR></TABLE>

my thoughts exactly.

 

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

Don't get me wrong, there's nothing wrong with buying a realiable, oem itr block. But a gsr block with itr slugs, is basically an itr block in my opinion. For an all motor build, the stock gsr rods, and crank are just as good as itr's. </TD></TR></TABLE>

Just for reference, the ITR pistons will press directly onto gsr rods and drop into the block with no problems (just to make that 100% perfectly clear....its hard to tell with all the pointless BS babble going on in this thread).

For another reference, my GSR block/crank/rods w/ JDM ITR Pistons spun up to 9k with no problems what-so-ever. That was using stock rod bolts and OEM bearings as well....obviously larger cams, upgraded valvetrain and the normal bolt-ons to go with that added rpm band.

 

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

Don't get me wrong, there's nothing wrong with buying a realiable, oem itr block. But a gsr block with itr slugs, is basically an itr block in my opinion. For an all motor build, the stock gsr rods, and crank are just as good as itr's. </TD></TR></TABLE>
I wasn't implying anythign like that. But some people will buy anything if they think it come off an ITR vs a gsr.
I don't get why people want oem itr mufflers and are willing to pay so much. Are they really that much better than gsr?
Some parts yes (ie; seats), but somethings are fine the way they are.