I did t compression test to day


Cyl#1
Cold 90psi
Hot 90psi
wet 95psi

Cyl#2
cold 169psi
Hot 175psi

Cyl#3
cold 165psi
Hot 185psi

Cyl#4
cold 190psi
Hot 185psi

Do i need to say any more.Time for new pistons.
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What a drag. How many miles are on the motor?

 

Not much i blow head gasket water got in the cyl 1 and 2 at 6k rpm so i put a new head gasket on and did the compression test and time to take it back apart (----) to put new pistons in the dam thing

 

shitty, Time for better pistons and more boost!!!

 

that sucks bro..I know with my b20a i saw the same results twice.. Rebuilt it the first time. Sold it to u the second time lol.. I would always know too. I would pop my hood to see TONS of oil that had shot out of my breather on the valve cover from all the blow by from the cracked ringlands. I feel u bro. Hope u get it back together asap! good luck!

 

I will have the new pistons by this weekend and it running by next weekend

 

I don't know if this will help but i did it anyways

Before


cleaned


After ( polished )

 

i don't see how that could hurt anything. might actually help against detonation because your getting rid of any deposits on the piston

 

they look sexy

 

I would scuff them to help form a nice carbon layer that will help to insulate the piston domes.

Polished surfaces could lead to hot pieces of carbon flaking off and leading to detonation, or worse.