Pistons?

[daconchslop]

Alot of money went down the drain. Happy, no but thankful i didnt get hurt is a blessing.

Which MPI kit was installed?

 

[Faceman]

I've heard that about JE's. Apparently they make one hell of a racket when cold. I didn't realize JE was making them to individual customer's specs. That's good to know. Thanks

Like piston slap in older LS1's?

 

[JerseyDrew77]

Multi port injection o ring busted and shot gas all over the place and ignited. burnt the entire engine bay up 27000 dollars in damage. So i have an A3 now big turbo.

And this is why I permanently have a fire extinguisher in my car.

 

[Square1]

Like piston slap in older LS1's?

Piston slap. Apparently from what I've heard from others they hold up well tho.

 

[Hoon]

Like piston slap in older LS1's?

I've heard that about JE's. Apparently they make one hell of a racket when cold. I didn't realize JE was making them to individual customer's specs. That's good to know. Thanks

Even the IE/Mahle pistons make a good amount of noise when cold and they are a low expansion alloy with a tighter clearance.

Seems like piston slap isn't avoidable with built motors on this platform.

Maybe the CP pistons will be quieter, not sure yet.

Piston slap isn't an actual problem, just an annoyance. It doesn't hurt anything. GM got sued over the piston slap issues and has won every time, because no one could prove the engines weren't performing to spec.

 

[Gvazquez]

My mahle pistons only slap for maybe 3 minutes when cold but it goes right away. It really isn't a problem unless you drive aggressively during that period. I dont even drive the car until the slap goes away.

 

[Square1]

I ordered the CP-Carrillo pistons because they're made in the USA even though I'm a Canadian lol. We'll see how they turn out.

 

[JerseyDrew77]

I ordered the CP-Carrillo pistons because they're made in the USA even though I'm a Canadian lol. We'll see how they turn out.

Nice! Now what size did you go with?

 

[Square1]

I went with 83mm based on the recommendation of my engine guy. His argument was to size the bore to the piston.
I appreciate everyone's input.
Thanks.
Anyone run nitrous and meth together on their MQB? lol

 

[russiankid]

The cylinder walls on these aluminum blocks are very thin to begin with, that's why you don't see any pistons being bigger than 83mm. If your walls look fine, stick with the original size.

CP stuff is good but as you found out, they are definitely not cheap. You can't go wrong with Mahle, as that is who I ended up going with even though some guys are complaining about the piston slap noise being pretty loud on cold start ups.

I thought these were iron blocks?

Even the IE/Mahle pistons make a good amount of noise when cold and they are a low expansion alloy with a tighter clearance.

Seems like piston slap isn't avoidable with built motors on this platform.

Maybe the CP pistons will be quieter, not sure yet.

Piston slap isn't an actual problem, just an annoyance. It doesn't hurt anything. GM got sued over the piston slap issues and has won every time, because no one could prove the engines weren't performing to spec.

My 5.3 with 216k slaps on cold start up for 15 seconds. Runs like a champ.

 

[JerseyDrew77]

I thought these were iron blocks?

The EA888 gen 3 engine is a cast iron block with an aluminum head.

 

[russiankid]

The EA888 gen 3 engine is a cast iron block with an aluminum head.

Ok that's what I thought, you had just said aluminum blocks so I was confused. No worries.

 

[neogeo]

It's amazing the following they have, unfortunately a lot more people are going to get ripped off before it's widely known that they are a bootleg company

What is a “bootleg” company?

 

[daconchslop]

OPP with their name stamped on it.

 

[neogeo]

OPP with their name stamped on it.

You mean like private label?