jdm-gsr

hey guyz, in th eprocess of a turbo build:

jdm 94 integra gsr
ge sleeved b18c1 with jdm b18c5 crank
crower billet rods
acl duraglide main and rod bearings
arp main and heag studs
b16a head with super tech valves, springs and retainers
skunk pro 2 turbo cams
cometic mls gasket 1.5mm
jdm itr intake mani

turbo kit:
ebay mani and dp (temporarily)
gt35r .63 exhaust housing
apexi fmic custom piping

warlboro pump
fuel rail (dont know brand but its high volume)
1000cc precision injectors
apexi powerfc (ap engineering version)

i just wanted an opinion on which pistons should i go with:
je or cp and what compression ratio 9:1 or 8.3:1 ......
we have 98 octane pump gas here and target is around 26-28 psi on pump gas
with je i can get 8.3:1 with my head and gasket thickness and 9 with cps...

plus would innovate red mounts hold up ??? its a daily driven car ....


help would be much appreciated.........

RCautoworks

Between JE or CP ?

Go with JE, I have seen way to many problems with the CP pistons. I myself would look into wiseco or aries.

kuja

i've had great luck with CP, my current set is 81.5 9:1 .

any reason why u want the powerfc?

KillAHonDa

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RCautoworks &raquo;</TD></TR><TR><TD CLASS="quote">Between JE or CP ?

Go with JE, I have seen way to many problems with the CP pistons. I myself would look into wiseco or aries. </TD></TR></TABLE>correct me if im wrong,but dosnt je make cp?..i myself have only heared good things about cp

Schister66

If you have access to such high octane pump gas, why in the world would you run an 8.3:1 compression?? Higher octane fuels like that would allow you to run a higher static compression while still running a good amount of boost. With something as low as 8.3:1, you'd have crappy off-boost response especially with a larger turbo like the GT35r. I wouldn't be as concerned with the brand as i would the compression ratio.

nitroice40

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KillAHonDa &raquo;</TD></TR><TR><TD CLASS="quote">correct me if im wrong,but dosnt je make cp?..i myself have only heared good things about cp</TD></TR></TABLE>

The guy who ownes CP use to work for JE. He left and started his own Co.

zex_cool

what about the endyne pistons ? anyone run those ?

op, sorry if this seems like a thread jack.

Schister66

Brand really doesn't play a huge role. If i were any of you guys, i'd be more concerned with getting the correct compression ratio.

BTW, the Endyne's are nice because they're factory coated.

zex_cool

you are correct to an extant i guess.


i was jst looking around and noticed that everyone else's pistons look alike but not the endyne once.

here is an example;



and




reason it got me thinking was b/c i saw green's setup is uses his pistons and makes like 800+whp.

Schister66

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zex_cool &raquo;</TD></TR><TR><TD CLASS="quote">reason it got me thinking was b/c i saw green's setup is uses his pistons and makes like 800+whp. </TD></TR></TABLE>

If you look on the Evans Tuning website, the ONLY piston they recommend is CP. That goes for any build from a simple 400whp build to a 900+whp build. Any good piston company (CP, JE, Endyne) is going to work for that kind of power...at that point, its all preference and tuning. Again, i would be less concerned with the particular brand and more concerned with picking the correct compression ratio for your goals. Couple a good compression, proper fuel and a competent tuner and you wont have any problems.

DownShiftPerformDC2

if your going to run 98 octane i would go with a 9:1 or even a 9.5:1 piston with something as low as the 8.3:1 youll be sacrificing some power for no apparent reason and as far as brand wise i would go with either JE or Manley

melovesboost

Im Running Wiesco... I use to run CP until i chiipped a valve relief and it messed up my head and sleeves

turbotypeR@SPEC

from my experience, the JE valve reliefs are cut too far down the sides on an 81mm bore, creating a weak spot. i have used wiseco, ross and cp and they seem to be much better. i personaaly use cp now.

LShatchie

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by melovesboost &raquo;</TD></TR><TR><TD CLASS="quote">Im Running Wiesco... I use to run CP until i chiipped a valve relief and it messed up my head and sleeves</TD></TR></TABLE>


yeah the older model cp pistons had a valve relief issue, they have now since fixed that problem

CivicVX94

just a little fyi, Endyn's Rollerwave pistons are Endyn's design but forged/produced by Wiseco and you can get them with an anti-friction coating on the side and a heat resistant ceramic coating on the top

Schister66

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


yeah the older model cp pistons had a valve relief issue, they have now since fixed that problem </TD></TR></TABLE>

damn...you beat me to it. Good info though

CivicVX94

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LShatchie &raquo;</TD></TR><TR><TD CLASS="quote">
yeah the older model cp pistons had a valve relief issue, they have now since fixed that problem </TD></TR></TABLE>
and it was only on the smaller bore sizes...i think anything below 82mm or 83mm bc the reliefs were too thin and could crack off....i believe their way of fixing this was to make the new models with the part that used to crack off already removed and smoothed out? larger bore never had this problem bc there was plenty of meat there for it not to be an issue

tokesGTR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DownShiftPerformDC2 &raquo;</TD></TR><TR><TD CLASS="quote">if your going to run 98 octane i would go with a 9:1 or even a 9.5:1 piston with something as low as the 8.3:1 youll be sacrificing some power for no apparent reason and as far as brand wise i would go with either JE or Manley</TD></TR></TABLE>

Their 98 octane gas is RON instead of an average (RON+MON)/2 like our pump gasoline. So, basically, their 98 octane works out to be about 93.5 octane here. In other words, he'll blow his motor into a billion pieces if he tries to run 28 psi into a 9.5:1 motor on pump gas

jdm-gsr

using power fc cause i have it as in i got it with the car its easier to tune for me cause i have the datalogit software and a friend of mine has been tuning evos and silvias and other hondas using power fc. it is a pretty decent ecu.

CivicVX94

Figured i'd throw this link in here...
https://honda-tech.com/zerothread/2217659
After all I've read I still say Wiseco/Rollerwaves or Aries...you never hear about any problems with them

urbansi

wiseco's have worked great for me. i cracked a sleeve running them and they held up nicely.

No complaints here.

jdmoscar

go with low comp. wiseco's u should be good...

jdm-gsr

going with wisecos..... 82mm bore .... around 8:1 compression with the 1.7mm gasket i have .... would it be too sluggish off boost with 8:1 or should i change the gasket ???? and bump it up a little ????

sp00led

I know plenty of people making 500+ on 9:1 compression like my setup. The thing is most only make 450whp on pump gas and run race gas to make anything over that. I don't think 8:1 compression alone would allow you to run 20+ psi on that turbo on 93 octane safely.

jdm-gsr

who said i had 93 octane ..... ????
we have 98octane ... the hobc in our country is 98 octane from shell or caltex ......
the regular premium gas is like 93 pistane but the hobc is good. ...
as an example an EVO 8 with a power fc running a jdm ignition map can pull 2.2 bars of boost on our HOBC fuel .... which is 98 octane ...... i mean im not saying that i have race gas out here but 98 octane is pretty decent fuel to make some pretty decent hp .....