as it says above.. im wondering whats the cheapest set that raises compression for a h22

 

type s.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">type s.</TD></TR></TABLE>

he said high compression

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Missing Gears &raquo;</TD></TR><TR><TD CLASS="quote">

he said high compression </TD></TR></TABLE>

He also said cheapest and the type-S are the safest/cheapest compression raisers. You can also go Mahle gold series and save a few bucks on a resleeve. If the type-s isn't high enough compression you can also try flat valves, cometic headgasket, or milling the block. If you do go that route however I would highly suggest claying the block to make sure piston/valve clearance is a go.

 

word conan

 

+1 for the type-s pistons, you could remove the middle layer of your oem headgasket to gain a little there too

 

i guess all of that will give a little bump in compression, although its still not high.

 

yeah as other said type S will give you about 11:1 or so, and it usually is around $300 or so for them. You might wanna get a tune if you bump compression to get max hp.

 

thanks guys, im looking for some so i can do it over the winter, either way i cant drive on snow with slicks.. iowa weather sux but anyways ill look into the type s and the mahle ones

once again thanks

 

Just how high are you looking to go? What else are you planning on doing?

 

you could always swap in an h23 crank and rods along with the type-s pistons, that'll bump her up. prolly a little more than you're shooting for though.

 

Would type s pistons fit in a H23?

 

blocks are identical, but as with any h22 piston and an h23 crank/rod combo the piston will stick out of the hole about .02" which in this case would get the compression pretty high like in the 13's range. so yeah it fits, but it'll be more compression than you would want on pump gas, BUT a thicker head gasket can always fix that.

 

So a .02" over sized Cometic head gasket would get the compression back down to safer levels?

 

the compression is, believe it or not, 250,255,260,255.. what cheapest! pistons would get it into 13's compression range..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by no1knows908 &raquo;</TD></TR><TR><TD CLASS="quote">So a .02" over sized Cometic head gasket would get the compression back down to safer levels?</TD></TR></TABLE>

I'd have to do the math, but you've got the right idea.

My combo is using an h23 crank and rods with 11.5:1 88mm wiseco pistons in an h22, in my case it is taking a .06" thick headgasket to get the compression back down to 12:1

 

Well I'm planning to build a H23 since I have a spare one coming tomorrow. Anyway I was just going to throw in some H22 pistons to up the compression and either run stage 2 or 3 Crowers. Like I said its a spare so driveabiltiy wont really be an issue. How much compression can the H23 crank and rods hold on pump gas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by no1knows908 &raquo;</TD></TR><TR><TD CLASS="quote">Well I'm planning to build a H23 since I have a spare one coming tomorrow. Anyway I was just going to throw in some H22 pistons to up the compression and either run stage 2 or 3 Crowers. Like I said its a spare so driveabiltiy wont really be an issue. How much compression can the H23 crank and rods hold on pump gas?</TD></TR></TABLE>

more than you can make naturally aspirated.

 

its not the compression that will kill the h23 crank, its the rpm. they cant hadle high rpm.

i have broken a couple h23 cranks reving to 8500 rpm. the first one broke using a stock crank pulley and the second one broke using a fluidampr.

if your going to rev that high i would suggest sticking w/ the h22 crank for reliablility.

 

whats the difference between h23 crank and h22

 

h23 has 4.7mm more stroke