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high comp. B18C1

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Old Nov 21, 2007 | 10:46 AM
  #1  
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Default high comp. B18C1

i currently own a B18C1 pretty much stock and wanted to know what i need for it to run higher compression? i wanted to take it up to at least something like 13.6 cr. thanks!

have any of you worked with these guys??
http://www.hondamarketplace.co...28087
how good are their procucts?
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Old Nov 21, 2007 | 10:53 AM
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Default Re: high comp. B18C1 (93dagsr)

You'll need a fire extinguisher
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Old Nov 21, 2007 | 10:57 AM
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Default Re: high comp. B18C1 (93dagsr)

Forged pistons is a start
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Old Nov 21, 2007 | 11:08 AM
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Default Re: high comp. B18C1 (93dagsr)

Why do you think you need a 13.6 compression ratio?

Why not use a wiseco 11.5 piston. It will definitely make it easier for you to find gas. Also, it will make it easier to build without having to check piston to valve clearance.

If you are looking for power see the link in my sig.
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Old Nov 21, 2007 | 11:10 AM
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Default Re: high comp. B18C1 (mar778c)

is that a DD ??
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Old Nov 21, 2007 | 11:14 AM
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Default Re: high comp. B18C1 (Lscivic1999)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lscivic1999 &raquo;</TD></TR><TR><TD CLASS="quote">is that a DD ??</TD></TR></TABLE>

currently yes, but i just bought a crx so after rebuild, no

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">Why do you think you need a 13.6 compression ratio?

Why not use a wiseco 11.5 piston. It will definitely make it easier for you to find gas. Also, it will make it easier to build without having to check piston to valve clearance.

If you are looking for power see the link in my sig.</TD></TR></TABLE>

i'll look into that, just throwing ideas out u know?
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Old Nov 21, 2007 | 11:21 AM
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Default

who is right??
https://honda-tech.com/zerothread?id=322046

how much would it bump me if i put in itr pistons in my gsr?? i got confused!
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Old Nov 21, 2007 | 11:22 AM
  #8  
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Default Re: high comp. B18C1 (93dagsr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93dagsr &raquo;</TD></TR><TR><TD CLASS="quote">

currently yes, but i just bought a crx so after rebuild, no
</TD></TR></TABLE>

13.5 compression is high for DD IMO, but since you have another beater, good luck thought..
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Old Nov 21, 2007 | 03:03 PM
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Default Re: (93dagsr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93dagsr &raquo;</TD></TR><TR><TD CLASS="quote">who is right??
https://honda-tech.com/zerothread?id=322046

how much would it bump me if i put in itr pistons in my gsr?? i got confused!</TD></TR></TABLE>


Hello, let me introduce you to a little known secret called LOGIC.

Gsr block =1.8L= ITR block

GSR rods = ITR rods

GSR crank = ITR crank

GSR pistons =different from ITR pistons

GSR compression ratio = 10.0:1
ITR compression ratio = 10.6:1

Simple LOGIC tells you that installing ITR pistons into a similar block will give you the same compression numbers. Another thing searching will do for you is tell you that GSR heads increase compression roughly .2 over the ITR head, so you would add .2 to the 10.6:1 and amazingly enough you somehow get a final ratio of 10.8:1 !!

I know we're getting into Chris Angel "mind freak" territory here but this logic thing I'm talking about is one hell of a secret weapon when used...

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Old Nov 22, 2007 | 03:52 AM
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Default Re: (00Red_SiR)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">


Hello, let me introduce you to a little known secret called LOGIC.

Gsr block =1.8L= ITR block

GSR rods = ITR rods

GSR crank = ITR crank

GSR pistons =different from ITR pistons

GSR compression ratio = 10.0:1
ITR compression ratio = 10.6:1

Simple LOGIC tells you that installing ITR pistons into a similar block will give you the same compression numbers. Another thing searching will do for you is tell you that GSR heads increase compression roughly .2 over the ITR head, so you would add .2 to the 10.6:1 and amazingly enough you somehow get a final ratio of 10.8:1 !!

I know we're getting into Chris Angel "mind freak" territory here but this logic thing I'm talking about is one hell of a secret weapon when used...

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

Nice

Do you know why you want to go with such an outrageously high CR?

What's the rest of your setup look like?

Cuz if you are thinking of running 13.6 CR on a stock motor or even a milllllldly built one...then damn...
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Old Nov 23, 2007 | 07:57 AM
  #11  
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Default Re: (OC Geezer)

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

Nice

Do you know why you want to go with such an outrageously high CR?

What's the rest of your setup look like?

Cuz if you are thinking of running 13.6 CR on a stock motor or even a milllllldly built one...then damn... </TD></TR></TABLE>


yea nvm i wasn't thinking right. i'm pretty sure that the type r compression ratio will be enough to suffice right now with a mild build.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00Red_SiR &raquo;</TD></TR><TR><TD CLASS="quote">


Hello, let me introduce you to a little known secret called LOGIC.

Gsr block =1.8L= ITR block

GSR rods = ITR rods

GSR crank = ITR crank

GSR pistons =different from ITR pistons

GSR compression ratio = 10.0:1
ITR compression ratio = 10.6:1

Simple LOGIC tells you that installing ITR pistons into a similar block will give you the same compression numbers. Another thing searching will do for you is tell you that GSR heads increase compression roughly .2 over the ITR head, so you would add .2 to the 10.6:1 and amazingly enough you somehow get a final ratio of 10.8:1 !!

I know we're getting into Chris Angel "mind freak" territory here but this logic thing I'm talking about is one hell of a secret weapon when used...

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


i never knew that the type r and the gsr were sooooo similar?! if so then why don't people just buy a gsr and drop itr pistons in?? thats crazy!!! i guess people just like buying the name huh?? well then im convinced all i want is the type r slugs and a mild build and tune. for now. well thanks for the help and sarcasm!! lol
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Old Nov 23, 2007 | 01:56 PM
  #12  
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Default Re: (93dagsr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93dagsr &raquo;</TD></TR><TR><TD CLASS="quote">
i never knew that the type r and the gsr were sooooo similar?! if so then why don't people just buy a gsr and drop itr pistons in?? </TD></TR></TABLE>


They do and they call that "the poor mans type R"
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Old Nov 23, 2007 | 04:05 PM
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Default Re: (93dagsr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">i never knew that the type r and the gsr were sooooo similar?! if so then why don't people just buy a gsr and drop itr pistons in?? thats crazy!!! i guess people just like buying the name huh?? well then im convinced all i want is the type r slugs and a mild build and tune. for now. well thanks for the help and sarcasm!! lol </TD></TR></TABLE>
itr also comes with a different transmission and head fyi
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Old Nov 23, 2007 | 04:18 PM
  #14  
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Default

me and my friend just finish putting a similar set up together but we used ctr pistons instead, clearence is so close its scary.. (but it was within range)
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Old Nov 25, 2007 | 02:20 PM
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Default JDM itr pistons!

im new to ht , i just built my gsr i used the jdm itr pistons they have a higher compresion my comp. is 11:36:1 i made 204whp 148ft lbs.
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Old Nov 25, 2007 | 07:35 PM
  #16  
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Default Re: JDM itr pistons! (wunfstgsr)

How did you get that compression ratio, gsr with JDM p73 pistons usually run more like 11.6:1 with a stock head gasket and without milling or decking.
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Old Nov 25, 2007 | 07:57 PM
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itr rods are balanced and the crank is a few pounds heavier. similar, but, not the same
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Old Nov 25, 2007 | 09:28 PM
  #18  
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Default Re: (Rollo Lawson)

I thought ITR crank was lighter?
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Old Nov 26, 2007 | 02:59 PM
  #19  
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Default Re: JDM itr pistons! (all-mtr-teg)

<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">How did you get that compression ratio, gsr with JDM p73 pistons usually run more like 11.6:1 with a stock head gasket and without milling or decking.</TD></TR></TABLE>

If you take JDM ITR pistons and put them into a 1.8L block with the same stroke, you end up with JDM ITR compression which is 11.1:1. He's using a GSR head which bumps comp by approx .2 so there's your 11.3:1 range.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rollo Lawson &raquo;</TD></TR><TR><TD CLASS="quote">itr rods are balanced and the crank is a few pounds heavier. similar, but, not the same</TD></TR></TABLE>

ITR rods are GSR rods, nothing special about them, not balanced, same part number, just stronger rod bolts, only difference. Crank might be slightly more balanced.

<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">I thought ITR crank was lighter?</TD></TR></TABLE>

no.
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Old Nov 26, 2007 | 04:24 PM
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Default Re: high comp. B18C1 (93dagsr)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93dagsr &raquo;</TD></TR><TR><TD CLASS="quote">i currently own a B18C1 pretty much stock and wanted to know what i need for it to run higher compression? i wanted to take it up to at least something like 13.6 cr. thanks!

have any of you worked with these guys??
http://www.hondamarketplace.co...28087
how good are their procucts? </TD></TR></TABLE>


13.6 is real high compression...... like race gas only...... the most ive seen with tuning on a street car is 12.5to1...... get pistons ...deck ur block... mill ur head...go with flat faced intake and exhaust valves... and a thin head gasket... all little ways to bump compression up
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