can you run h23 crank and rods with type s pisotns??

has anyone done it?? if you have what was the compression??

 

help!!

 

it will stick out of the block like whoa! stroke is 5mm longer...and rods are a little longer t

 

you can do this, to be on the safe side use thicker headgasket.

 

Its possible. There is a .0255" difference in piston height. The piston will be out of the hole by about .008" if your block deck is factory height. Your compression will be 12.3:1. A good amount and still able to run 93 octane.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thehatchninja &raquo;</TD></TR><TR><TD CLASS="quote">it will stick out of the block like whoa! stroke is 5mm longer...and rods are a little longer t</TD></TR></TABLE>


NOPE. This is wrong.

Yes, you can use the F22/H23 crank for your set-up, but because of the additional stroke, your compression ratio will be much higher than 12/1... closer to 12.3/1 for a stock head and stock block. Even higher if millwork has been done to either.

The rods from the F22/H23 are shorter than the H22 by .061"

The piston compression heights as well as respective deck heights need to be taken into consideration when doing your build. If a stock H22 compresion height is used with a stock "un-milled" H22 block combined with the 95mm crank and the F22/H23 rods (5.572" length) the pistons will actually stick above the deck surface by .006-.008"

 

so it will be safe to run an h23 crank and rods with type s pistons?? i am going to have head work done and going to add cams. do you know how much lift on the cams i can have before i start running into problems?? i wa thinking about crower stage 2 or 3 cams,

 

When you start getting into that you'll probably want to clay the motor. A domed piston out of the hole and high lift cams can mean problems. Better safe than sorry.


Modified by ranta18 at 1:39 AM 9/10/2005

 

what do u mean by claying the motor???

i was told that i can run h23 crank type s pistons and rods is that right?


Modified by ilikehonda at 6:44 PM 9/12/2005

 

what do u mean by that

 

Yes, you can run them and it will be fine, but if you are going to run them with high lift cams like the Crower Stage 3's then you should be carefull and clay the motor first. Degree the cams, clay the motor, etc. Make sure you piston to valve clearance is what you want it to be.

 

what is claying the motor??

 

You put clay on the piston, put the head on, rotate, and check the piston to valve clearance.

Here is an online version: http://www.c-speedracing.com/h...y.php

They say not to, but I would do the valve adjustment. Lash will change the lift slightly. If the clearance is too small you need to clearance the piston (grind the valve relief down).

 

thanks for all ur help guys...ill keep a post of how its doin!

 

Yo, i ran a crower stage 3 in my h22a1, with stock bottom end, and shaved 15 thousandths off the head, hit vtec, and bam, my valves hit the pistons, and the ****** machine shop screwed me over, cause they said that i would have clearance, and i didn't. Make sure you get pistons that accept that lift and have bigger notches, cause my valves hit on the corner of the notches. you can see the damage on my cardomain site....

http://www.cardomain.com/ride/1474662

BUT.... those cams where sooooo hard core, i recommend the CROWER stg3 to anyone doing an all motor build, i never got above 5300 rpms cause of well, that **** ****** up. BUT 0-5300 rpms, damn that **** pulled, and kept pullin harder and harder, and i had a perfectly stock idle. Right now im building a h22a i just got, and im usin those cams again