Stephen

Same price as the japspeed units then, do we recon there any better/worse?

that's normally the ******* expensive bit, I wanted megan spings but they cost as much to post as they cost to buy!

Specialist insurer, ie expensive. Try adrain flux, and sky.

Are you.importing them from the states?

As mark said it depends on who converted it, mines an auto shell with a manual box and manual engine, I believe there auto turbos. Wh ws n I first did it, it was quite obvious it wasnt naturally manual. Now its right....youd never know.

I want god speeds, I dont know how much they are though, as I know there stuff normally ok priced.

I think the black silver looks a bit halfords mate. The silver/white is more classy, but a solid colour would be better.

Ah right, did.i meet you the other week over at hellraiser?

I know of two dark grey ones locally, a swb tt and a lwb na. The na has white 5 spoke wheels. There is also a black one with bronze wheels in new milton but I havent seen that in ages.

Also in that location its only going to read half yh e engine, post cross over would be vest wouldnt it?

Im still in the same position lol, however if I can convince the thrid factor the other fall into ireelivance to a certain extent lol.

Penny just dropped, if the front cam cover ones have a one way check valve in place, then at idle this prevents a proportion of the air that is being scavenged into the intake by the pcvs being sourced directly from the intake. The non return ensures that the vacuum sources blow by gasses more efficiently, creating greater sump ventilation. I think I've just managed to unravel that mess of thoughts. If that's correct why the hell didn't Nissan do this to begin with....

I really do appreciate the time your giving me with this one bud ive just done reading into the basic principals of crank case ventilation and now I understand that the pcv valve on our cars I sthe one responsible to removing oil at idle, and the one going into the corrugated turbo feed pipe is for WOT. This does however confuse me here the whole owv is concerned as sod all goes that way at idle due to the vacuum pressure in the plenum pulling it through that way. God im starting to get confused. In terms of venting to atmosphere only, you then loose the scavenging? effect that helps to remove problems with the crank and gasses that would cause it to chop the oil about. so that is a disadvange isn't it? I think the issue ive got is sort of breather related in that there is bog all backpressure in the exhaust at idle and the pressure in the sump is higher than this causing it to pass. Part of me also questions if my oil level is correct or too high as reading the Nissan dipstick is nigh on impossible I find.

it will be the drive shafts failing next :P

Yeh I'm just wondering if the pcv/crank ventilation is the root cause of your turbo woes. Could save you some serious time by trying it first.

Cheers for that jeff, I can see it being easy on an na, and I really have no idea why I didn't do this when I had the engine on the stand and the manifolds off, I guess I just couldn't see the wood for the trees with the leaky rocker gaskets and assumed it was ok. Lesson learnt.

Is it humanly possible to remove the oil filter tree in a twin turbo model without pulling the block or turbo. Yes I know it will be tight and my knuckles might bleed, but im up for a laugh if its possible. just don't want to waste time on getting frustrated over something that isn't actually possible.

oh and the car is fully decatted with divorced downpipes 2.5 all the way with 4" slashcut rear boxes so is extremely freeflowing, also not helping. the only three things I may have done wrong are, non oem pcvs, non oem ruber from the oil drain(may have shrunk internally) and my oil choice. I am being very picky as I say as the amount of smoke is like a cigarette not a factory chimney lol.

Ok can I ask a few questions on that basis as id been thinking about this in any event, you saying about low pressure in the turbo, I was under the impression that higher than atmospheric pressure in the sump, caused oil to back up/not flow freely into the sump, this then causes excessive oil levels in the turbo and the lower pressure of the exhaust system allows it to suck it out through there? My turbos arn't tired as such, there rebuilt, previously on idle they smoked like a trooper, since the rebuild they have improved 100 fold, and the issue only occurs when the car is HOT ie when you've given it some, then spend a prolonged time idling at the 900 or lower rpm range. I could drive around all day at 2k and youd never know, I could also take you around for 20 minutes on attest drive and you never see a thing, after an hour though it would rear its head, I assume this is because the oil in thinning out, making it easier to pass? I do wonder whether my choice oil has its part to play here.

Yes...go on lol, im currently considering venting the crankcase to astmosphere to relieve backpressure.

Yup, mines removed and it does exactly as noz said. My tubs smoke a touch, I believe, but is disappears completly with the ac on. Do you still have your cats? And are your breathers all in good order etc. have a good read of the thread I put up yesterday. - - - Updated - - - Yup, mines removed and it does exactly as noz said. My tubs smoke a touch, I believe, but is disappears completly with the ac on. Do you still have your cats? And are your breathers all in good order etc. have a good read of the thread I put up yesterday.

Oh no, you dont have to do it from above, thats way worse. The bottom two you should be able to do easy with a ring spanner, the top up with a socket on a uj I believe.

http://www.pistonheads.com/classifieds/used-cars/nissan/300zx/nissan-300zx/1142437 pretty sure its been hiding around my area recently saw it up for sale today.

Be worth getting yourself a finishing tap aswel, and some wd40 clean all the crap out the threads, this will ensure your torque settings are correct, as if they're all crudded up inside it could snag and effect your reading. good luck.

Yeah Its given alot to consider.