MS390 / 039 pop up piston

[RI Chevy]

Ahhh. OK. Good deal. My stock 029 really woke up with the muffler mod.

 

[Fruecrue]

 

[Terry Syd]

36" that's sick.

I just ordered a pop-up for my saw. Unfortunately, I missed the Deal of the Day. US$44 to Oz, or A$60.

 

[Fruecrue]

Saw is apart.

 

[Fruecrue]

Timing was 100/125/78
Squish .028”

 

[Fruecrue]

I assemble these clammys using 1/2” spacers until the motoseal sets.
I find it easier than trying to do it in the saw.

 

[RI Chevy]

That's a great idea. I like it.

 

[Fruecrue]

Here it is boys!

Cross Performance pop-up is in the saw.

 

[Fruecrue]

Though I did expect a higher compression reading, I’m not disappointed at all with the performance.

@Gentleman

 

[Fruecrue]

@Gentleman

 

[RI Chevy]

Real nice job! Much stronger. Pulls nice.

 

[Fruecrue]

Real nice job! Much stronger. Pulls nice.

Thanks, it’s definetly stronger, I’ll get a final compression reading after some more run time.

 

[RI Chevy]

I am curious to see how much it goes up. Maybe 185 to 190?

 

[Dub11]

Sounds a lot happier now!

 

[Adirondackstihl]

Now I wanna find a blowed up 029..........

 

[Fruecrue]

Now I wanna find a blowed up 029..........

How you doin’ ?
Sorry to hear about your situation.
Hope the best for you.

 

[Adirondackstihl]

How you doin’ ?
Sorry to hear about your situation.
Hope the best for you.

Thanks Dave.
Attempted to go to work this AM, just too worn out from the last few days. Came home and just chillin out.

 

[MustangMike]

Wow, looks very strong for an 039! And the rings are not even broken in yet (but I'm impressed they include Cabers with this upgrade).

 

[beaglebriar]

Though I did expect a higher compression reading, I’m not disappointed at all with the performance.

@Gentleman

Impressive!

 

[D B Cooper]

Impressive, I need to find me a 290 to make a 390 out of.