I have jspec s5 TII engine stripped to short block right now. I did a compression test when it was in the car : 92 psi on front rotor and 95 on rear rotor. Some say its good numbers other say it's borderline. I need to know what to do ? Rebuild or not ?

Thanks for help guys!

Alex

 

its borderline... If you got the time/money, rebuild it. If not, run it.

 

Sounds good to me? I thought 70 was border line..

 

90, 80, 70... Whatever..

 

What is peak for the TII?

 

Anythig below 100 is getting weak. 90 is borderline. Anything below 80 is dead on weak and crap ***. Rebuilds usually develop 115-125psi, and healthy used mtors are usually between 115 and 100.

IF you can, rebuild it. IT is probably a 6 month-1 year motor as it is. As someone put it well in another thread, a turbo II can turn 95psi into 0 very quickly, as opposed to an NA, which might last a couple years on those numbers.

 

im running right now with either a cracked or blown side seal in the rear rotor, im just gonna run it till it dies or rebuild it this summer

 

I voted no, however i would start the "new engine fund" soon

 

im running 65 psi on front rotor and 70 on back and my engine runs fine except the occansional flooding. but im going to rebuild soon thought.

 

Thanks for input guys!

What is the minimum to replace when doing a rebuild ?

 

Apex seals
oil o-rings
gasket kit including coolant o-rings, dowel o-rings, and tension bolt seals
e-shaft thermal pellet

 

well
sounds like you have everything tear down ...
so not like its a daily driver car
if you have the $, might as well do it while everything is out