hello everyone. Got a rod knock so i decided to make a thread about my bottom end rebuild. Im not gonna do a step by step guide or nothin just showing you what im doing to the car. the rebuilds on a 95 integra gsr motor. bottom block.

 

Subscribed!

 

Nice!

 

Aha thanks nick

 

picked up some ctr nippon high compression pistons.

 

**** yeah Jason.

 

if i dont party tonight i think i might work on the car. haha.

 

Why on earth, would you waste money on ctr pistons.. when you could have got a set of a p30's or even a set of RS's or supertechs for that price..

ctr pistons are garbage..goodluck with your 13.3CR build, thats assuming you take nothing off the head/block and use a 3 layer GE.. not to mention what type of valves / cams your using and if it will bleed off compression or not..

I'd suggest turn around and selling those pistons and picking up a set of another, if you need suggestions be more then happy to help.

 

head has crower stage 1 cams. buddyclub cam gears. buddyclub valve springs and retainers. i prefer ctr compared to the itr because of the compression. i appreciate your food for thought but its not needed thanks. keep it movin.

 

It'll be needed when you make a thread on why you melted a spark plug / piston and why you had to pull a crap load of timing just to drive it to work and it runs like a slug.
I dont just post in threads w/o having information to back up a claim, your already going to tear down your motor, might as well do it right.. CTR pistons are the worst choice ever..Just trying to look out.
Good luck.

 

Compression is part of an equation to make power, it is not the absolute answer for it like so many incorrectly think. Do a search on here regarding the use of CTR pistons and you should start to see why ITR would have been a far better choice. 12.9:1 is what I've calculated you out to be https://honda-tech.com/forums/all-motor-naturally-aspirated-44/pct-ctr-piston-compression-ratio-717928/ .

It's been proven on here that a car can make more power on less compression when built and tuned right. Anything over 12:1 on the street is a waste IMO. A car that's running the small cams you have doesn't need anywhere near the compression ratio those CTR pistons will provide. Search some of OMNI's threads and you'll learn a lot about piston design.

 

OP, its your car, build it how you want. Though I will never tell anyone to not listen to someone else's advice, because sometimes it does help, build the car the way you want it and the way you'll be the happiest with.

 

but he wont be happy. that be nice to everyone BS about cars doesnt apply when it means his motor WILL fail and run like ****

 

this is why i dont go on forums. let me do my build and you guys can do yours. keep it movin people.if anything happens ill just tear the motor apart again not a big deal.

 

If that's the case, then you should really be posting this in the regular Integra section where people like the "ooooh ...ahhhhh factor". This is the TECHNICAL section where we strive to build motors that will last and perform, based on proven information, knowledge and part combinations. To post a build such as yours and not want any feedback as to the decisions you're making, in this forum, isn't going to happen. To say that you don't care what anyone has to say and if you screw up, you'll just build it all over again says to me that you have more money/pride, than brains.

 

i do have pride in my car that i built. im a college student living on my own. im working my *** off to make this build and if u dnt like the build thats fine with me.

 

If you really do have pride in the car that you built and you're a college student living on your own, working your *** off to make this build, can you please explain why you wouldn't want to only do it once and do it right?

 

i know people that run ctr pistons as a daily with no problem. quarter mile running high 12s low 13s at sac raceway with no problem. going on 9000 miles on a rebuilt motor with nippon ctr compression pistons with no problem. i understand the specs you guys are giving me but this is MY build not yours. i know what im doing with my build and what i want todo. i understand that a 11:1 compression would be better. it would be a less headache down the road. i wouldnt have to worry about pinging. i know for afact im still gonna pump 91 not 93. is the ctr pistons going to be reliable yes..as reliable as itr possibly not. but we shall see how good of a build it turns out after its done, tuned, dynoed, and tracked. does anyone else have a mod list close to mine with itr pistons and a track time/dyno chart?

 

Difference is, people pay me to go fast.. not you.. We deal with this every day just about, we're not saying we know everything, we're saying we know what we're talking about..

00red_si is right, and in every aspect, as well as you.. It is your build, we just want to see it succeed and last..
Subforum users are ignorant and have no idea whats going on half the time..

but your right.. if your working your *** off and its your build sure.. i'd hate to see you spend 2500 on a build and have to tear it down a month or so later because you melted something, then it'd be the thread.. "i'm on a college budget and i can't fix this, what can i do"..

But like we've said, goodluck..
if you think ctr pistons will work fine and you have this insane amount of CR, take advantage of it, go with bigger cams, better i/h/e setup ...stage 1 cams would be squat on this motor.. go with some pro1's or pro2's or some crower stage 3's..

 

Those CTR piston's dome looks mean & scary. Nice build BTW.

 

people pay you for them to go fast because they cant do the work themselves. and i dont know what your talking about 2500 build? im on a low budget build. if i had 2500 id just turbo the bitch and throw the peace sign to any n/a build

 

oh and your right on the cams i plan on changing it. i had buddyclub sp2s but they started to chip on the lobes so i traded them for the stage 1 crowers. i plan on getting stage 2s in the near future.

 

wow is this a false statment with 2500 u def wouldnt beat half the decent n/a builds in this n/a forum just because someone has a turbo dosent mean they are fast lets remember that most of the 10 sec n/a cars are hardly making over 300+ whp and i doubt you would run 10 sec with a 2500 dollar turbo setup

 

what are you running?

 

goodluck, with research you would have found the gsr head doesnt like the pct pistons. they sit out of the hole abit and the gsr head isnt chambered like the b16 head.

i would say ditch them, pull the block and throw a flatter piston in the with a overbore to unshroud the valves. p30s or itrs would yeild you high compression and not have the issue with the heavier pistons.



BTW im running a 12.5 compression ls/vtec with 82mm ITR pistons and a b16 head. that traps 100mph on stock cams in a stock weight integra.

also i hope your not running the shitty npr brown box rings, i would atleast upgrade to the better grade npr (gnh) ring.