okkim

I bought custom pistons from www.racetep.com and ordered 9.0 compression ratio. I got the pistons finally measured, and the CR is more than in original! Look at the picture. Compression height is the same, but there is no dish area.

The question is, that should I remove material from the JE pistons, or buy thicker head gasket? If I modify the pistons, the ceramic coating is gone, and I wouldn't like to do that.

I am wondering if the squish area (if there even is it) goes bad with the thick gasket, and does it hold the power (600 hp)?

The Racetep doesn't answer to may emails, they are not doing anything to fix this issue! I suggest not to buy anything from them!!!<ul><li><a href="http://www.valitalo.org/files/S4_pistons_orig_and_JE2.jpg">OEM and JE piston</a></li></ul>

Captain Matt, I be

send them back, dispute the charges on your CC if you have to.

okkim

If I send those back, I loose them and I'm sure that they wont do anything.

So I need to use those with some kind of modifications to pistons or gasket.

Tony@EPL

My dealings with Top-End (racetep) has always been top notch. Give them a call.

Mark@AutoSpeed

Did you check wrist pin location vs OEM? Perhaps that was raised in leiu of dish?

fussball.biturbo

Try a phone call rather than email, might work better.

Pop3

IIRC thats the way he found out the screwed CR

okkim

Seems that it is impossible to have things done from here

Arcteryx::Stock Rods

how much did these pistons raise your compression?

okkim

But it is more than in original, and that wasn't the target.