shifter

i am getting a lot of blue smoke with high revs in neutral and more under boost, so i think that this is rings. i've done compression test and it showed: 175-165-160-175. it's a b16a with srp pistons and eagle rods. compration around 9:1. right now i have my pcv system unplugged and venting in atmosfere. pcv valve is removed. but i've been told that valve seals can be a reason. but i am getting really a lot of blue smoke under boost. so how do you think, i must buy new rings and install them? or blue smoke can be from seals?

also i've bought from egay spring and retainers. will i be able to safelly rev engine to 9-9500 revs with boost? (i've hx35w turbo, it likes hi revs =))

also i am nervous about a lot of noise from those forged pistons. actually my engine is sounds like a diesel car... is it okey?

Slo_crx1

Could be a few things...valve seals usually do leak at higher rpms only, as compared to rings are usually under high load situations. And since you were revving in neutral it means there was no load on the motor, which by the way is the stupidest thing you can do to a motor. Never rev to a high rpm with no load. It could also be your turbo as well, oil feed line might be pushing too much pressure into the turbo and it could be leaking past the seals. On my b16 I make around 82psi at 8000rpm, which would be way too high for a turbo if it's not restricted down. As far as your springs and retainers go, who knows...without actually seeing what kind they are, it sounds like a 50/50 chance to me. Besides, I think it's only the exhaust side that has just single springs...intake should be dual. I personally picked up a set of type-r dual springs and retainers to run.
Your forged pistons will knock back and forth when cold, so they will sound like a diesel until they're warmed up. Once they reach temp though they expand out a little and should stop knocking. If they still knock though, sounds like you have a problem...might be time to take the block to a machine shop and have it bored out and go with an oversize piston, or have them replace the sleeve liners to keep your stock sized pistons. Personally if they still knock when warm, and since you already have forged pistons, I'd take the block to the shop, have them mic it out and see if the bores are out of round, and have them press in new golden eagle sleeves...just the replacement type sleeves to keep your stock bore. Just my .02 though :1

shifter

i am getting smoke under high revs, so that can be seals and turbo. i will put restrictor and measure oil pressure in feed line. and will replace seals soon. may be that will fix smoke. but... when i've looked in spark hole i've seen cooked oil on pistons... so i think that is rings too. 'cos i have no oil in intake pipes.

i've got type-r dual springs. will i be able to rev engine to 9-9.5k rpms with them alone?

about piston knock - it became quietly as engine warms up, but it is still noticable. i dont think that i have problems with cylinders 'cos that engine came from japan with 80k kms and came with autotranny. anyway there no good machine shop to rebuild my engine with new liners =(

Slo_crx1

I kinda doubt it's your rings then, more than likely valve guide seals. Like I said, rings will smoke mostly under load, off throttle and no load revving usually doesn't leak past. I won't stop you though if you feel it necessary to replace your rings, as you know the motor first hand.
Usually the upgrades to do to rev higher are the dual springs and retainers, and to replace the valves as well. It is possible to rev a stock honda valve that high and possibly never have a problem with it, but for reliability wise I'd say replace valves too. It's a given that high rpm motors will produce more power overall (look at f1 cars), but this is mostly for n/a applications. To truly rev that high safely a few steps need to be taken. Have the crank balanced for at least that rpm range and have it micro-polished and the oil journals chamfered. Have your rods match balanced as well. New springs and retainers as well as valves, and a new cam set to actually make power up to that rpm range. But because you're boosted there's really no reason you should have to rev that high to make peak power, unless your turbo efficiency really doesn't kick in until a higher rpm. And if that's the case then you make no power on the low end and everything up top...not feasible for a street driven car and in which case I would suggest a smaller turbo and not even worry about revving higher.

Ogubudiah

how many miles have you put on it since rebuild?

Slo_crx1

It's also a good possibility on the pcv setup...could still be building too much positive crank case pressure and blowing oil past everything

shifter

i've drove it something like 10.000 kms after changing rods with pistons. i used total seal rings, but that is my first install. may be i've done something wrong way. right now i will do intercooler, massive PCV system with venting in to exhaust, restrictor to the turbo, replace my valve seals and if that wont fix my smoke problems, i will install new rings. but they are costly =( something like a $130 for OEM set.

about street car - b16a with big turbo is my street car =) it has enough power in lower revs to move in the city traffic and not consume alot of gaz, but when i need real power, i just downshift to 2nd gear... =))

shifter

today i've found another problem - head lifting or blown headgasket. i've installed ARP headstuds with forged internalls but today after car stayed like 5-10 mins running white smoke started. not a lot but it was noticable. after thet i've opened radiator cap and found bubles in coolant.. what can be a reason of headlifting? i was used 1 degree retart per psi and max boost 0.85 bar and dayly with 0.6 bar. i am not using intercooler right now.