Ive lookin online an i havent found to many ove bore pistons.

Wiseco
http://www.kingmotorsports.com...ngine

arias
http://www.atomicspeedware.com....html

an I think CP has some. anyone know of some more people? an when i go to a bigger bore on the darton sleeves is there anything else i would need. Just rings correct?

 

All of these companies can make you an 88mm bore. I personally like CP.

 

Mahle has them as well (and they are off the shelf pistons), and Ross and Je can make them too.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">Mahle has them as well (and they are off the shelf pistons), and Ross and Je can make them too.</TD></TR></TABLE>

The Mahle pistons aren't forged are they?

 

The Mahle's are forged.

 

i have not seen Mahle offer an aftermarket pistons that is NOT forged actually.

 

I have a set of Wisecos in my h22, 88mm bore. They are forged as well. Just about any company can make customs for you only a few offer off the shelf h22 pistons in 88mm. I also know that Ross has some as well too, the are 8:4:1 compression If I remember. Go to the Race Engineering site, they have lots to offer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vinuneuro &raquo;</TD></TR><TR><TD CLASS="quote">The Mahle's are forged.</TD></TR></TABLE>

How come people say you can drop them straight in then?

 

I wouldnt just drop any pistons in unless the block was honed properly to the correct piston bore and I always thought that unless the block has iron sleeves you shouldnt use forged pistons? Something about the sleeves in the h22? I know i have forged wisecos with iron sleeves now and I have no problems at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1epmugenlude &raquo;</TD></TR><TR><TD CLASS="quote">I wouldnt just drop any pistons in unless the block was honed properly to the correct piston bore and I always thought that unless the block has iron sleeves you shouldnt use forged pistons? Something about the sleeves in the h22? I know i have forged wisecos with iron sleeves now and I have no problems at all.</TD></TR></TABLE>

Because you have iron sleeves.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">How come people say you can drop them straight in then?</TD></TR></TABLE>

Because they work in stock H22 blocks?

 

well yeah, forged pistons are known to make some damage to the h22 non-iron sleeves but mahle has some special coating on their pistons that they make em fully compatible with the h22 sleeves

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1epmugenlude &raquo;</TD></TR><TR><TD CLASS="quote">I have a set of Wisecos in my h22, 88mm bore. They are forged as well. Just about any company can make customs for you only a few offer off the shelf h22 pistons in 88mm. I also know that Ross has some as well too, the are 8:4:1 compression If I remember. Go to the Race Engineering site, they have lots to offer.</TD></TR></TABLE>howu like them wisecos?? they seem pretty good priced from everyone else?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SKDRCR &raquo;</TD></TR><TR><TD CLASS="quote">Because you have iron sleeves.</TD></TR></TABLE>

They have a coating on the skirt, for higher friction and lower expansion. I've heard that the S2000 and NSX pistons are forged as well and tackle the problem in a similar way.

Considering Mahle is probably the largest OEM piston supplier in the world, and supplies the Ferrari F1 team among others, I'd say their product is solid.

 

I know about the mahles but im not sure if those sleeves with hold 500whp. i think it would be pushing it.

 

i cant find there site.

 

http://www.mahle.com/

this it?

 

those are good if im sticking with stock sleeves..but im not

 

cp on 2 high whp h22s

 

I personally have yet to hear of someone fubaring the stock sleeves due to too much power.

 

Endyn rollerwave pistons do me well

 

those would be my pick if i ever went durbo.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">I personally have yet to hear of someone fubaring the stock sleeves due to too much power.</TD></TR></TABLE>

yup, i have yet to find proof of a stock sleeve failing, its the piston rings and the pistons themselves that are weak.

 

has anyone used mahle gold series pistons with boost, or are they usually used for raising compression

 

^^true, the pistons suck

go for wisecos if youre gonna get sleeved....

the mahles are definitely worth a shot