Thread: Lifting Heads

only one way to find out crank the boost but before you do that tighten the headstuds another half turn

^I like how you think. Try it and report back.

you mean 69lb/min right ?

yes ofcourse

broken ringlands

thanks wont be the first time lol

you have been playing with sr20s a while now,have you ever lifted a head with stock head studs? and if so how much power,psi, and what turbo

every motor is different you want to find out.... disconnect the waste gate line and watch the boost gauge

about 5yrs ago i was lifting heads with the old arp stuff,making close to 500 22psi

Just because you have blowby doesnt mean you have cracked ring lands. Now if its smoking out the breather at idle. Yeah cracked ring lands. If its not smoking out the breather, your ring lands are fine. Your going to have blowby at those boost levels. Hell my motor was built and new rings and all and i still had blowby at anything more than about 21-22psi of boost from the 60 trim. lol.

Nothing you can do about it. Big boost setups need to use additional breathers to help keep the crankcase from pressurizing. Which is why i turned my pcv into a breather line to the catch can as well as the line off the T on the valve cover. Worked flawlessly.

Do tell more...So stock breather setup on a DET isn't enough for higher boost? How about what I run? A 2871R at about 17-21psi of boost? any recommendations?