Hang in there man. I felt disappointed also with the rod issues. I’m sure it will work out for you.
Atleast you know that it’s normal for the pistons to stick out. You’re using aftermarket rods right?

 

yeah i have carrillo h beam rods with the upgraded hardware. i bought only the best for this motor. im looking for only 450 to 500 rwhp. the car is being built for road racing. the stock motor in this car with 10,000 miles snaped a rod at road america when it only had the 2 hole oil squirters. after that the car has been turbo and tracked with no problems. it started lossing alittle compresion so i decided to build the motor. i was going to sleeve it but ive seen alot of problem with after market sleeves moving and s**t like that and the motor tends to run warmer since they become semi closed decked then. cooling is your friend on the track so when i saw these pistons come out i jumped on them because the stock sleeves are good for about 700 rwhp. i hope i made the right choice

 

these pistons will hold up no problem.. they even all come with upgraded pins, something that wiseco and others will charge you 80-100bux for.

Touge, I talked to your builder earlier today, he sent me some measurements and I have made the guy at mahle aware of the issue. We will make sure its taken care of.

as for how much a compression test should show.. with the -11cc pistons in a 2 liter motor i'd expect to see 150-180psi. In a 2 liter they would put you around 8.9-9:1

 

It makes sense for Mahle to use the exact 23.00mm pin size. This allows people to choose from a large range of aftermarket rods which all use these pins. If you really want to use factory rods the large pin means you can hone the little ends to address any out or round or surface gauling.

If on the otherhand they built their pistons to the 22.97mm factory pin size you would be stuck with factory rods, or have to rebush aftermarket rods.

 

My ? Is what is my next option???? To make this work ???

 

Is it touching on the head gasket or the head?

The head gasket should be bigger than the bore so it should have plenty of clearance.

If its the head You will probably find your combustion chambers are slightly offset to the bores so the piston is just catching along one edge. If this is the case use a head gasket as reference and get a machine shop with a mill and boring head to make some small cuts for clearance.

If is only a tiny area touching then you could probably do it freehand with a die grinder. Use an old head gasket to protect the head surface in case you slip.

 

a 1mmx45deg chamfer will fix it, the stock oversize pistons have a similar chamfer on them.

mahle will put a chamfer on the pistons to fix the clearance issue. You'll need to contact whoever you got your pistons from to have it taken care of though.

 

what are looking at for a turn around ????

 

you'd have to talk to whoever you got the pistons from about that.

 

I got a guy working on my block... bore hone, with mahle pistons and brian crower rods. I just gonna go for stock rods but FYI new rods around 150... new brian crower rods....355. So I just shit out 200 more for the brian crower rods while we're in there.