compression test after rebuild

[sharky559]

ok so i finished my build a week ago so far i've put 30 mile on the car. this morning i did a compression test to see what up. this is what i got 155,145,150,140. I dont know but to me those numbers seem kinda of low. what do you guys this

 

[Jiggalude]

My compression numbers are higher on my car that has almost 200k on it.

 

[donniekak]

Get some more miles on the car. Also, load the engine, and allow it to coast down in gear.

 

[ramsack]

30 miles is nothing, give it more time. Drive it like you stole it.

 

[LiquidX]

30 miles is nothing, give it more time. Drive it like you stole it.

+1 to that!

OP, is your profile fully updated? What kind of rebuild did you do?

My compression on my build was 155 across the board and that was normal for my engine/head mods.

 

[sharky559]

opps have not updated my profile. but im on it. as for driving it like i stole it im debating on that. the first time i drove it like i stole it that was when i had put new pistons and ring. drove it for a 50 miles came back home with a spung rod bearing, broken rings on two pistons.

but i think that was my fault when i got the pistons and ring's i thought they where gaped already but they where not and i put them like that with out gaping. rookie mistake but now on my second rebuild everything is all good specs are good

 

[Kapok6]

A new engine needs to beat all to heck withing the first 20 miles of operation to ensure the rings seat properly.

Read this. Good stuff.

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

 

[CONSIGLIERI]

30 miles is nothing, give it more time. Drive it like you stole it.

Great Phrase dude