ok i have been searching and searching and i still cant decide what pistons i want for my lsvtec build, heres the deal i was originaly gonna go turbo but i dont feel like blowing **** apart being boost happy, i want to build a daily driver that is gonna be dependable and quick. i am looking for around 190whp-215 if possible.
i was looking at ctr pistons but from my calculations i will be around 12.5-1 cr maybe more since my head has been milled. i wanna be around 11.5-11.8-1 and run itr cams or maybe stage 2 cams? is possible. heres my set up now

b18a1 block
b16a2 head milled
g.e conversion kit
3 layer oem h.g
gsr oil pump and waterpump
stock exhaust mani for now
goin with a blox intake mani
adj cam gears
lighned crank pully
ls tranny for the gas milage because i will be running high octane(93)
310cc injectors
fpr
and a chipped p28 untill i can get a s300
again looking for 190-215 if possible to the wheels, wud be happy with 180 to

 

CTRs = junk
PR3s or P30s.

 

will i have to do anything to the ls rods to put them on?

 

I am running JE pistons...84mm 11.5:1

 

i dont have the money for forged internals. this is my first major build and im on a budget, when i do my second build im gonna go crazy on that

 

any other recommendations? also were do the p30's come from?

 

P30's are jdm b16 pistons.

You can get them from rs machines or hmotorsonline.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1 2 NV &raquo;</TD></TR><TR><TD CLASS="quote">CTRs = junk
PR3s or P30s. </TD></TR></TABLE>

QFT

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by moosepoop21 &raquo;</TD></TR><TR><TD CLASS="quote">
ls tranny for the gas milage because i will be running high octane(93)
</TD></TR></TABLE>

i hope you like slow acceleration. you can still retain good gas mileage with a b16/gsr tranny with a good partial throttle tune and not driving like an *** everywhere you go.

 

for NA the tranny wont really effect mileage at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDogg &raquo;</TD></TR><TR><TD CLASS="quote">for NA the tranny wont really effect mileage at all.</TD></TR></TABLE>

Yeap, I'm a believer.

+30 mpg

 

Either of the B16 pistons (PR3, P30) or the USDM ITR pistons is what I would recommend. I think any of those would work well. With the P30 yielding the highest compression ratio I believe.

But...

1. Ditch the LS tranny. A GSR would do you fine. (I can manage 35 mpg come summer - and that's hardly any highway running)
2. I don't think you should expect 200 whp with the cams you wish to run.

Other than that... looking quite good.

 

well if u know anyone that wants to trade trannys because i have two ls's one cable and one hydro because i dont wanna spend another 300-400 for one

 

Well it's not like it's the end of the world if you rock the LS tranny. It does its job as a transmission that gets you from point A to point B. But if you'd like extra performance, while still maintaining good fuel mileage... you won't have issues with the GSR or B16 transmission. So if you can get ahold of one at some point in time, I personally would.