my same first thought
Ok, guess ill be the nice guy today. As long as you run only 8lbs of boost or less, all you need to be safe is a cometic headgasket and arp headstuds, and that will be good enough.
That isnt true. I was going to go into detail but got traction did...
im very dissapointed in you, I figured you knew what you were talking about.....
Boost pressure or PSI HAS NOTHING TO DO WITH IT!!! Its all about how much power the motor will hold. People on Turbod16 and D-series.org say that a stock motor with just ARP headstuds will be good to about 200 whp. That is IF and only IF you have a very good tune, adequite fuel supply, etc.
not only that but 8psi on a 14b is different than a t3/t4 than a s372r...etc.
It's in the tune. Blowing headgaskets can easily be resolved, and most of it resolved thru tuning the car properly.
unfortunately..... the motor has 220,XXX miles on it... should i just get a b16 swap and run NA?
I'm not sure what would be better...
220k...build the motor. If there is any damage to the bottom end now, turboing it will accelerate it and it will definitely show itself ...probably sooner than later.
alright so what i think im going to do is keep the z6, buy some new rods and sleeves, also head gaskets and studs. I'm not going to be cheap on those parts because if i buy a cheap ebay turbo, and it breaks on me i can just run NA, but if the internals blow out on me, im screwed.
so with the ebay kit, i'll just run about 6-8 psi, and when something gives i'll replace with better turbo parts.
Now i've heard a lot about it being extremely hard to tune a vtec turbo engine. is that true?
^That didn't make sense really.
For the bottom end you'll need pistons and rods. From the sounds of it, your stock sleeves will be plenty.
Pick up a set of pistons (75.5mm), H Beam rods, ACL bearing set, OEM headgasket, ARP rod bolts, check the specs on your pump, if they are out replace the oil pump, and just get a water pump while your at it along with a timing belt. You now have the ingredients of a fresh turbo ready block, get it assembled and drop it in.
You'd be just as screwed if your good block held up and your rolling down the highway and your cheap turbo kit falls apart. Save yourself the headache and skip the cheap kit. That kit is no longer cheap when you begin replacing all the cheap pars with quality parts. Doesn't matter if your running 2 psi, psi isn't the only factor breaking cheap parts.
SOHC vtec motors are not "difficult" to tune.