97accord_R

i have a few questions when buying pistions
i have a LS motor CPR is low enough for boost but my rings are shot
and im just going to go ahead and get new rings, rods, and pistons

im going to shoot for lower CPR like 8:1

question is first off what matters when purchasing rods, pistons and rings?

what do i need to look at to make it all work together?
like rod length, piston head??

i see of these specs when looking at rods and pistons...i just don't know
what matters the most and what will work with my motor.

secondly if i do get 8:1 Pistons my motor is 9:? will i still be able to
run my car 8:1 without a turbo kit or not?

SD_Lurker

iTrader: (4)

If you have an LS buy LS rods. Only time you need to worry about rod length is with a stroked motor with a large crank. When buying pistons get the CR you desire. Pistons will be labeled with the CR the hold. Of course if your milling the head or decking the block CR will be affected slightly. 8.0:1 CR is way to low IMO. I personally wouldn't go any lower than 9. The lower the CR is the more boost its gonna take to reach your desired goal. Anything under 10.0:1 CR is ideal for a boosted setup.

97accord_R

sweet thanks a bunch that helps me out alot

just to make sure i got this

LS rods..basically same rod length as my stocks

stick with the 9 CPR i plan on building the motor for strictly boost so
milling or anything should i even worry about?

kyden

milling depends on how flat your two surfaces are, but i wouldn't worry, it won't be more than like .2 or so off in that case.

97accord_R

ok another questions does it matter H I or A beam rods?

what best for boost if that even matter?

SD_Lurker

iTrader: (4)

H and I beam are going to be your best bet. Either or just depends on the manufacture. Eagles are H-Beam and Manley are I-Beam just to give you an idea.

97accord_R

ok well i was looking at Manley I beam Pro series..

how i think i have one last question and ill have all my answers..
can i mix match rods with pistons like

Manley Rods with JE pistons, BC piston..and such??

kyden

yes.

are you using stock sleeves? h beams are more than enough if so.

97accord_R

yes i am using stock sleeves, not in less i should sleeve it...what is the difference?

i just want to make sure my motor is capable of holding a good amount of boost and a good amount of HP.

97accord_R

this is my set up plan

Manley Rods pro series "turbo Tuff"
Wiseco Pistons 9.3-9.8 CPR
Full Race t4 bottom mount twin scroll turbo manifold
Greddy Intercooler 24V
Garrett GT4201R BB turbo


how do i know what size WG i need to pick and BOV?

also if anyone get a chance to look at everything
is this set up do able?

kyden

i just don't think they're worth the extra 300 dollars on stock sleeves. the sleeves would give up before the rods.

SD_Lurker

iTrader: (4)

How much power are you looking for? With that your going to need to get sleeves. I think your over doing it, by a long shot.

97accord_R

well I'm looking to get at the end around 500HP

but for now since my rings are fired im going to go ahead and get my piston set up

and maybe get a kit around 1800 for starters..

SD_Lurker

iTrader: (4)

well you don't need FR divided topmount but whatever floats your boat.

97accord_R

well what do you suggest for my manifold??

SD_Lurker

iTrader: (4)

Well for 500 WHP I don't think its needed. The new bottom mount is divided but it better suites a STREET car since you can run an air filter. A divided manifold isn't needed period but it would leave you with an endless amount to grow. You could get one and run a smaller turbo and have great boost characteristics and one day decide you wanna go all out for 800+whp. The Borg Warner 83/75 would be a great turbo for a street/strip car. It flows 68lbs so it would be good for about 600-650. I would suggest a t3 topmount with a GT35R or something similar. That will easily reach your goal and some.

HiProfile

Go to evans-tuning.com, click on dyno library, then poke around. I'm sure you'll be surprised - many people run 'cheap' eagle rods and turbos with t3-sized turbines for 500whp. THe problem is 93 octane can only do about 450whp before it causes issues. Jumping to race gas will allow for more power from the same setup, and even E85 can crank out 500whp now on a decent t3 turbine setup. As mentioned, sleeves will be your biggest enemy over 400whp.

FYI there is a dyno there showing a GT30 doing ~500whp. You don't need a giant turbo to make power.

97accord_R

wow thanks a bunch everyone
now something new just came up

im about to get ahold of a GSR head for LSV on my civic, but im still going to going to boost it,

so any advise if i were to do lsv and turbo?

97accord_R

wow thanks a bunch everyone
now something new just came up

im about to get ahold of a GSR head for LSV on my civic, but im still going to going to boost it,

so any advise if i were to do lsv and turbo?

SD_Lurker

iTrader: (4)

I don't think your ready to turbo your car. You need to research a lot more and familiarize yourself with a boosted b-series and what it entails. There are so many other things that are often over looked. A rock solid fuel system and proper engine management will be the most crucial part of your build. If your looking for reliability and plenty of power, build it right the first time. The advice we've given you still pertains to a LSV, nothing we've mentioned would change what your doing. You still need LS rods if your using an LS crank.

97accord_R

got it all down, thanks everyone look for my build thread comming soon