should i go with jdm itr or jdm ctr?

for top end i will be running skuk2 pro2 cams and high comp. valves need some help

 

go ctr , itr pistons will only raise your comp. by a little.

 

so the ctr will give me beter comp. or is just a better piston for the b16

 

what would be needed to put the pct b16b pistons in a b16a, is it just a simple swap? from what ive read the b16b pistons will put the compression almost a 12:1 if this is true would the stock starter be able to turn the engine over reliably?

 

the high comp valves alone will add about .3 then you can safely mill the head about .020-.025inch and add another .4-.5 and have a nice 11:1 without changing the pistons (and still clear the cams your planning on using). In addition you will have a better dome shape and combustion space and retain the lightest OEM piston available for that motor. Or you can spend the money on the CTR piston and have a 30 gram per cylinder heavier piston (adds 1/4 pound of weight total) a poor dome shape that increases the fuel octane requirement and spend more money and make less power. decisions decisions.

 

Stop, Steve. You should know CTR's for everything Honda.Compression does not matter with a good tuner, they can tune anything.

 

Given what Omni wrote, I've often wondered why honda went with PCTs. Especially when if its a new design you just increase the compression hieght of P73-00 by 1 mm and be at the same C/R.

 

Because the B16B had a different block height and rod length. They made a piston to match, not to put in your GSR.

 

Someone would do that? xD

 

Steve illustrates YET ANOTHER reason why BIG DOMES DO NOT = BIG POWER. Never really considered the weight aspect of it. Great point! I understood the principle of the dome actually impeding flow...but never even thought about weight.

EVEN when your Static Compression is beyond the limits of what your FUEL can effectively run! Not to mention EVERYONE on here knows someone that knows someone that ran 13.5:1 on 91 octane. IT'S ALL IN THE TUNE, GUYS! You know that!

 

Lol, even in a PR3 head that dome is sketchy.

 

well my bigest thing is is that i want too gett 200whp out of this thing

 

Buy Omni's DVD (DIY) or get DonF, Jim Justice, BearEK, Tbone, Synapse, etc. some cash and you will meet your goal.

 

Its funny you say that because, of the few 200whp b16s ive seen, none of them were using pct's.

A couple very experience builders have just told you not to use them but do what you want.

<Has pct's in a b16a and would not to it again.

 

Not to discourage the OP (original poster), but you should take the time research the parts you are going to need for your build and write down each part that you will need. Over the course of a year or less depending on your budget and money situation you can collect all the parts and then assemble your motor and enjoy it. often times when people jump in to fast without enough foundation of knowledge it leads to a bad experience.

200 whp is going to require a hefty investment well into the 7k+ range even if you do everything yourself. one way or another you will spend 7-10k after all the dust is settled to get 200 whp from your b16a. just keep that in mind.

this is a list of most of the parts off the top of my head you will need

a premium header
cams
adjustable cam gears
valve springs
retainers
high comp valves
ITR lost motion assy or =
itr or = intake manifold
larger tb
injectors
2.5 inch exhaust
new pistons and rings
gasket set
some mild head work and cleaning and machining of block and head
bearings
timing belt
water pump
oil pump
tensioner
fuel management (hondata, crome, neptune, ectune etc etc)
fuel pump and fuel psi regulator
dyno tuning
clutch and light weight flywheel
someones labor, be it your own or someone elses that you pay for.
air filter intake of some sort
transmission final drive to take advantage of the higher rpms and power band

when you increase your RPM range from 8k to 9-9.5k the transmission gearing and final frive becomes really important to get the car to accelerate to its potential. if you dont invest in gearing you will leave a big part of the potential untaped.

there are probably other things that will cost money also along the way that i missed, but its pretty accurate. you can check out a video of this type of build at www.intertune.tv to confirm the above.

 

It is not discouraging when a HT/honda legend gives out sage advice.

 

who would that be? Don?

Damn Steve...you actually took some TIME to type all that out. You're feeling generous tonight, huh?

The Intertune TV video opened my eyes to a lot of things....not to mention prompted me to get in contact with some really knowledgeable people that have helped immensely in my search for knowledge about these engines.