irishpilot

I did a search and didn't come up with any successful install.
Just reasons on why to do it or how its a waste of time and money. Has anyone got them put in and felt/dyno'd and shown
a increase? With the bump it should be 8-12 whp right?

GroverzVTEC

The type-S gained power from several motor changes, not just the pistons.

Cams + Intake + Higher CR Pistons to name a few.

I would probably choose to install a CAI, Type-S Pistons and some kind of Skunk2 Stage 2 cams. Its been shown several times that stronger cams give little power increase without a higher compression ratio or increased redline...or both.

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Tony

he is not asking about cams....he's asking about the pistons.

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97 Nordic Mist SH

NXLude

Well it works both ways.....the system benefits most when done in tandem......if you go 11.1 cr....you need bigger cams to properly exploit it......thats what he was saying....

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H22 DC2 in the works

Satan_SRV

I think higher compression is good on any engine, even with stock cams. Look at the JDM H22As with 10.6:1 CR they get much better numbers.

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Joel
Dirty Supra Turbo Hardtop

schwett

which is somewhat confusing since the motor is rated by honda for less power... ???

that .6 should be worth something, but there must also be something else that's different for honda to have said it wasn't as strong. or, maybe it's just marketing.

Mike95lude

The H22A4's rating of 195 and 200 is imaginary imo. It's just a marketing tactic of trying to display engine output improvement to the American market in hopes to improve sales/demand.

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Forbidden

Yeah I think that too, it's kinda like how they sell stuff for 99.99$ instead of 100.00$ looks cheaper.

irishpilot

Ya, but what I want to know is, has someone done the swap on this board on a H22 JDM spec lets say. And was there a dyno plot
on the install on it to see if it is indeed worth all the work?

For Type S cams, can you use stock valve train?
For the pistons do you need to use the type s rods? Could you use say eagle or crower rods without any modification to the
rod?

thanks

GroverzVTEC

My mistake, I actually meant to say Pistons there not cams. I'll fix it thanks.

__________________
Another world....Another Time...This land was green and good...until the Crystal Cracked. Once more they will replenish themselves, cheat death again, the power of their source....The Crystal...

GroverzVTEC

Most people who swap out a JDM engine do so becuase they are either upgrading something like a 95 Si and the japanese motors seem to be easier to get (from what I've seen)...or their original motor was blown and a JDM was cheaper than a dealer motor.

Quote:

For Type S cams, can you use stock valve train? For the pistons do you need to use the type s rods? Could you use say eagle or crower rods without any modification to the rod? thanks

I am sure this information is available on the board. Even if you do not need a valvetrain upgrade, why not slap springs and retainers if not new valves while you already have the head off? It's more expensive of course but you will be thankful later if you decide to use Type II cams or something.

I'm not sure if the wrist pins on the pistons are different for Type-S motors like some other ones are. My school of thought for larger engine upgrades is to get the bolt-ons first (obviously) so you have tools to tune it with, then upgrade the stock internals while simultaneously installing serious goodies like cams and pistons.

Rods are so expensive, but if you're not installing it yourself it could be big time labor savings if you hand them a load of parts and said "Install these now, for there will be much rejoycing." Besides, upgrading rods and valvetrain will make you feel much more secure day in and out about the reliability of a somewhat hybrid setup

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irishpilot

ya that makes sense

thanks

93si4ws

yea i've been running type s pistons for a minute yo. i had the engine up since october 02. they're .25mm os. no problems, is that all you wanted to know?
v

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vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03

for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16

irishpilot

ya 93si4ws, how was the difference in power?
What rods did you use? And is this in a si block or Vtec?
Did you Tune at all, if so what did you use?

sorry for all the questions

93si4ws

nice power. extra torque throughout the band. but i can't attribute it to just the pistons. im using 2.3 rods. in a jdm 2.2vtec block. no tuning.
v

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vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03

for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16

irishpilot

sounds nice. did you have to alter the H23 rods at all? I take it
your using a H22 crank right? Did you do your self? if not how
much for a shop to install

93si4ws

2.3 crank. rods shotpeened, thats it. my blood and sweat.
v

__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03

for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16

irishpilot

"my blood and sweat"

I respect that

Theres a guy at work that has a civic and didn't do any of the mods to it, and one day said out loud while looking at a catalog with a JDM Valve cover, "I think I'm going to get a BOLT ON VTEC"

Isn't that the saddest ish youve ever heard

irishpilot

because I was pretty vague,

He meant that by getting the Valve cover that had VTEC accross it he thought that he would actually get VTEC and gain HP.

When I heard this I was like, I'm glad in a way i'm not rich as hell

93si4ws

i've heard worse. but yea. pretty sad when ya hear things like that.
v

__________________
vern - 93 jdm 2.3vtec 4ws
please say a prayer for isai perez jR, my godson 9.28.02-3.16.03

for God so loved the world that He gave His only begotten Son,
that whosever believeth in Him should not perish,
but have everlasting life. John 3:16