so i got a b16 turbo setup from a buddy a couple weeks back that had been sitting for several months. it ran perfect when he pulled it out. then i got it in my car and it has compression sometimes and then sometimes its got nothing. could it be the rings seizing up from sitting? valve seals? lemme know if you've ever heard of or experienced this problem. thanks

 

bump

 

i had the same prob with an ls but i never got comp out of it still waiting to tear it apart, i'm guessing it's the rings though when they sit you can build moisture in which builds rust which can sezie the rings and tear them up from all the rust on the walls

 

yeah. i'm gonna pour a couple drops of oil in through the spark plug holes and see if that frees them up a bit. i really can't see it as a hard failure because it had compression and then didnt. but we'll see. i'll post later on after i try it.

 

monday morning bump

 

haha...

Intermintant compression loss is more likely due to valve adjustment issues or carbon holding the valves open, rings rusting from moisture is just retarded...

 

Too tight of a valve adjustment gets my vote. Loose enough so that there is compression cold but when it gets really warm valve(s) can stay open.

 

thanks guys i'll check the valve clearances today and update later on tonight hopefully.

 

welp got pissed off and went ahead and got it tuned...

 

Pretty good numbers considering

 

very good for a stock sleeve b16 at only 15 psi did u ever get the compression thing fixed corey

 

can you tell us some details of your setup?

would be also interesting if you have found the compression issue

btw. Nice numbers

 

havent had a problem with the compression since the tune... :/ still kinda worried but we'll see. its a stock sleeve b16, eagle rods, cp 9 to 1 pistons, gsr cams, custon mani and downpipe, 60-1 turbo, edelbrock intake mani, 750's, 3 bar.

 

What A/R is on the turbo?

Great torque curve!!

 

.70 i think. lol that torque curve is so sick!!!!

 

bump someone on here has had to have had this problem before.