HI im new to this board b/c i owned an eg for about 4 years but i finally got an integra! and love it!!! but to my question im putting all new gaskets in my car also a skunk2 intake mannifold and i also got some eagle rods but im looking at putting ctr pistons im my b18c1 motor w/ stock head gasket and the head isnt milled! after that im getting the car tuned w/ uberdata! do you think this would be a good set up and SHOULD i do anything else or different pistons mabey ITR? PLEASE i need some help b/c i dont know much! thanks!

 

also what kind of power am i looking @ with this set up! sorry for the NOOPIE questions!

 

check the all motor forum, there is a lot of info about ctr pistons in a gsr

 

bump!

 

bump

 

Why are you bumping your thread? I can't even count the number of threads I've seen on this exact topic.

Try searching.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by arw321 &raquo;</TD></TR><TR><TD CLASS="quote">Why are you bumping your thread? I can't even count the number of threads I've seen on this exact topic.

Try searching.</TD></TR></TABLE>
YES I DID SEARCH for about 1 hour!!! and i did get a lot of useful information BUT my question is WHICH one should i get itt or ctr?

 

Neither, sell that POS

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmjeff &raquo;</TD></TR><TR><TD CLASS="quote">
YES I DID SEARCH for about 1 hour!!! and i did get a lot of useful information BUT my question is WHICH one should i get itt or ctr?</TD></TR></TABLE>

call jay, he can answer your questions , but you should be ok with CTR pistons.. but if you got eagles you might as well buy aftermarket pistons other than the OEM piston... if you plan to spray or anything..

 

my homie pyitr821 put ctr pistons in his gsr..... no problem what so ever. If you dont have a lot of funds, then get the p30, CTR, or JDM ITR standard bore pistons. If you have some money to spend, then screw the oem pistons and get some higher compression pistons!

 

ok thanks guys, im looking at some usdm itr pistons! but what is the difference between the usdm and the jdm pistons? But im going w/ oem bc im on a budget! also Shaun Im me jays # k man!

 

jdm itr pistons have a little more compression than usdm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmjeff &raquo;</TD></TR><TR><TD CLASS="quote">ok thanks guys, im looking at some usdm itr pistons! but what is the difference between the usdm and the jdm pistons? But im going w/ oem bc im on a budget! also Shaun Im me jays # k man!</TD></TR></TABLE>

if your on a budget than sell the eagles and you can get oem rods and pistons and still have money left (depending on where you find em)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by juggernaut &raquo;</TD></TR><TR><TD CLASS="quote">if your on a budget than sell the eagles and you can get oem rods and pistons and still have money left (depending on where you find em)</TD></TR></TABLE>
thanks man. yeah i think im going w/ CTR's and stock gsr rods but do you know anyone that needs/ want some eagle rods for cheep?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmjeff &raquo;</TD></TR><TR><TD CLASS="quote">
thanks man. yeah i think im going w/ CTR's and stock gsr rods but do you know anyone that needs/ want some eagle rods for cheep? </TD></TR></TABLE>

johnathan!!! , work something out with the mani

 

https://honda-tech.com/zerothread?id=717928

Compression ratio #'s for PCT/CTR pistons.

https://honda-tech.com/zerothread?id=1088178

Rod/Stroke ratio

I highly advise reading through these threads. Best info I have found to date. P30's will make a little more compression/power in a GSR block compared to the ITR's. That includes the JDM ITR pistons as well. The GSR's make close to 13:1 compression. That calls for at least Hondata and some solid tuning for safety in my opinion. I don't doubt that it would run fine with a VAFC and some tuning though. It's all about how much power you want to make with your setup, and if you want it to be daily driveable or barely streetable. 13:1 compression is almost asking to use higher than 93 octane.

 

Rod/Stroke ratio

I highly advise reading through these threads. Best info I have found to date. P30's will make a little more compression/power in a GSR block compared to the ITR's. That includes the JDM ITR pistons as well. The GSR's make close to 13:1 compression. That calls for at least Hondata and some solid tuning for safety in my opinion. I don't doubt that it would run fine with a VAFC and some tuning though. It's all about how much power you want to make with your setup, and if you want it to be daily driveable or barely streetable. 13:1 compression is almost asking to use higher than 93 octane.[/QUOTE]
thanks for the excellent info! but what kind of compression am i looking at w/ gsr head and block, stock oem gasket, CTR pistons and gsr rods? THANKS

 

hey man i just put ctr pistons in my gsr and everything is going good. people on here were saying that it run right or id have to run racing fuel and now look at my car. its running great on 93 octane. it is tuned with hondata but thats all i would consider.
before i put them in i was scared and now i'm more than satified.

 

excellent, thanks man. yeah im going CTR's w/ skunk2 manifold and uberdata... i just have to find some CTR's

 

cool cool good luck with setup.

 

[/QUOTE]
thanks for the excellent info! but what kind of compression am i looking at w/ gsr head and block, stock oem gasket, CTR pistons and gsr rods? THANKS[/QUOTE]

PR3 head/B16 Block
STD = 11.643438609136867
25 OS = 11.703231023151065

PR3 head/B17 Block
STD = 12.193487116069006
.25 OS = 12.256369577319077

PR3 head/B18C Block
STD = 12.58636786521145
.25 OS = 12.649248792586258

P72 head/B18C Block
STD = 12.924594026551906
.25 OS = 12.989047869209281

PR3 head/B18A/B Block
STD = 12.825536009218106
.25 OS = 12.88971493738735

P72 head/B18A/B Block
STD = 13.170743903246784
25 OS = 13.236528215133324
All calculated using OEM 3 layer gasket @ .026 and the compression height provided by Omniman

The P72 head and B18C block is about on the money. If you are good with math, they had the formula to calculate out the EXACT compression somewhere in one of those 2 threads I sent you.

 

Go with the jdm itr pistons, ctr's compression is really high, but depends on what kinda set up ur going with. Good luck

 

12.9 compression is very high... probably a little too high! how would this run on pump gas. And im investing is hondata.... by the way where is a good place to purchase hondata?

 

12:9 and im running fine on pump gas. everything is good. u'll like th power u 'll get out of the ctr's so if i were u id go with the ctr's. im satisfied and my car is running good. just get tuned and u'll be alright.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aron0903 &raquo;</TD></TR><TR><TD CLASS="quote">12:9 and im running fine on pump gas. everything is good. u'll like th power u 'll get out of the ctr's so if i were u id go with the ctr's. im satisfied and my car is running good. just get tuned and u'll be alright. </TD></TR></TABLE>

I would only run CTR's with Hondata and tuning. Do you ever feel like you may be close to the threshold of knocking? What kind of whp gains did you see from the install? What stage Hondata are you running? Where did you get it? Sorry for the questions, but you have once again sparked my interest in CTR pistons in a GSR block.