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Type S camshaft

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Old Mar 2, 2003 | 08:47 PM
  #1  
[mmm]PFM's Avatar
[mmm]PFM
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From: Crestivew, Florida
Default Type S camshaft

Hey fellow ludes.

I need a good upgrade for power on my lude.

And I was wondering since the chassis for h22 and h23 were almost same, Im guessing that type S parts would fit on 92-96?

I was at optauto.com and I came across a type S camshaft set.
Would that fit?

If im wrong whats a good internal upgrade for 92-96 nonvtec.

-JDMPFM
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Old Mar 3, 2003 | 03:39 PM
  #2  
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Type S cams aren't going to work in a non VTEC head. I'd suggest checking out Skunk2 and Crower for what they have in order of cams. Ones specifically meant for your motor will make more sense and power then ones for another motor.
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Old Mar 4, 2003 | 06:56 PM
  #3  
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check out some type-s pistons they will work in your h23 and will boost your compression.
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Old Mar 10, 2003 | 02:10 PM
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Originally posted by 94prelude_v-tec
check out some type-s pistons they will work in your h23 and will boost your compression.

:ugh:

Type-S pistons will require claychecking the combustion chambers to ensure fit. the H23 head has decreased compression chamber volume over the H22. valve angle is also different, therefore claychecking is VERY important as the valve recesses on the H22 piston may not be sufficient for use with an H23 head.

H23 uses dished pistons to create 9.8:1 compression. the H22 uses domed pistons for 10.1:1 compression. this is due to the H23's combustion chamber volume... i.e. the chamber roof is much shallower.

here's the deduction:

i have an H23 VTEC with H23 pistons. the H22 head with the H23 pistons creates 9.3:1 compression due to more chamber volme in the H22 head combined with stock H23 pistons... of which normally an H23 has 9.8:1 compression. a .5:1 compression loss.

the H22 pistons if i had dropped them in would have created 10.1:1 compression plus .5:1 compression due to the H23 head's reduced compression chamber volume. in other words, an H23 motor with H22 pistons would create a 10.6:1 comp motor. by sticking in the Type-S pistons, you'll end up a whole compression point higher, thus at 11.6:1 compression.

11.6:1 static compression will require fuel with a higher octane level than pump gas to run properly.
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Old Mar 11, 2003 | 08:17 AM
  #5  
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the combustion chamber/piston dome size is NOT and issue when putting h22 pistons into the h23 block. its a matter of compression height, the h22 has a higher compression height, stick h22 pistons in a h23 head and the sides of the piston WILL hit the head. we learned this the hard way. the h22 piston sticks out of the top of the block slightly when put in a h23 block. its not the dome that hits it the flat part on the sides that hits.
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Old Mar 12, 2003 | 10:12 PM
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Originally posted by Trickturn
the combustion chamber/piston dome size is NOT and issue when putting h22 pistons into the h23 block. its a matter of compression height, the h22 has a higher compression height, stick h22 pistons in a h23 head and the sides of the piston WILL hit the head. we learned this the hard way. the h22 piston sticks out of the top of the block slightly when put in a h23 block. its not the dome that hits it the flat part on the sides that hits.

it's because you used the wrong rods. wrist pin placement differs slightly, causing the H22 piston's ring land to protrude above the deck.

a thicker headgasket can remedy this or a deck plate or even custom rod lengths... tho goin with a slightly shorter rod will throw off your rod stroke ratio to an even more undersquare situation.

machining of the head will do, but you'll end up spending too much for too little.
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Old Mar 14, 2003 | 10:44 PM
  #7  
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what rod you gona use?? why waste the money on custom rods just to use type s pistons..... come on now...

we used h23 crank and rods with jdm h22a pistons in a h23 block. using h22 rods would make the piston come up even more than using the h23 rods

and how the hell will machineing the head do anything, unless your talking about combustion chamber work, and by that time you got enough money to put good aftermarket h23 pisons and rods in there and not have to worry about it
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