atlplayer4life90

any info will help alot, how come some people say that you have to sleeve a H22 block before you build it with after market pistons and rods if anybody knows why please let me know thanks any info is highly appreciated..

2fastGSR

because the h22 block is made from a material called FRM . forged pistons and FRM is not a good combo. If you look in the prelude forum there is a FAQ thread and it will tell you everything you need to know...

HeikDiesel

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2fastGSR &raquo;</TD></TR><TR><TD CLASS="quote">because the h22 block is made from a material called FRM . forged pistons and FRM is not a good combo. If you look in the prelude forum there is a FAQ thread and it will tell you everything you need to know... </TD></TR></TABLE>

Just a note on top of that is a piston company named Mahle makes pistons that are FRM compatable. Tyler Hara had great sucess with them while others were not too impressed. Just something to keep in mind as an alternative to sleeving

2fastGSR

Mahle Gold series ....

atlplayer4life90

so this pistons are good and i dont have to sleeve and when they say that they didnt have good results or impressed what does that mean

2fastGSR

I think he meant mixed results. I myself have notreally seen too many results wither way with these pistons although i was considering doing them. They cost around 550 so its not too bad.

What are you looking to do with the motor- going NA or boost?

HeikDiesel

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2fastGSR &raquo;</TD></TR><TR><TD CLASS="quote">I think he meant mixed results. I myself have notreally seen too many results wither way with these pistons although i was considering doing them. They cost around 550 so its not too bad.

What are you looking to do with the motor- going NA or boost?</TD></TR></TABLE>

Yeah I meant mixed...sorry if that confused you. Id say for the price you really can't go wrong. If i was to build a mild boost engine id try them for sure

GetawayInMoscow

F20b block FTW, iron sleeves

atlplayer4life90

i would really like to do NA

HeikDiesel

ok so just run some type s pistons which are 11:1 compression ratio. You can run up to about 12.5:1 on pump gas but I mean I need to know your power goals and use of the car to better give you an opinion. Also are you building it, paying someone else, and how much money do you have?

2fastGSR

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HeikDiesel &raquo;</TD></TR><TR><TD CLASS="quote">ok so just run some type s pistons which are 11:1 compression ratio. You can run up to about 12.5:1 on pump gas but I mean I need to know your power goals and use of the car to better give you an opinion. Also are you building it, paying someone else, and how much money do you have?</TD></TR></TABLE>

exactly what i was going to say.

You can even run an h23 crank and rods and have them fitted to the type s pistons for little more stroke and will bump the CR up too

HeikDiesel

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2fastGSR &raquo;</TD></TR><TR><TD CLASS="quote">

exactly what i was going to say.

You can even run an h23 crank and rods and have them fitted to the type s pistons for little more stroke and will bump the CR up too</TD></TR></TABLE>

Is there a topic on this?

2fastGSR

Top of Prelude forum. there is a FAQ thread- its in there along with tons of good stuff !

atlplayer4life90

thanks for all the info guys i have seen some online from nippon racing the type s kit is that a good kit and i was going to have a machine shop put it together and for the car its just a weekend warrior i hope but all the info is highly appreciated

2fastGSR

i am really not sure about the nippon racing stuff. i would just look for some oem honda type s pistons. they are always for sale in the classifieds.....