big turbo, and why it smokes!

[rigor]

first off ive been BT for 27000 miles, and it has lightly smoked ever sense install, not visible, but i could smell it...

my drain is beyond 45deg!, to hit the hole in the block. and only has about 3.5 to 4'' of fall..
I think the abrupt turn is causing my smoking issue! buy oil backing up in the chra, and leaking buy the oil seal ring.
and the seal ring is bigger in dia on the turbine side, than the compressor side, so this is the first to leak when oil backs up in the chra..... as this is the lowest point to leak out.

no it is not a blown oil seal in the turbo! that is bs! if that is your take on turbos, move along you have no idea what your talking about...


i know their are a lot of great minds here on this forum, to figure out what the proper drain drop, minimum or turbo height location, for proper turbo drainage!

i have the lowest turbo location to my knowledge....

so my take on it is my chra is always full of oil (not draining properly), so it only leaks at idle due to no exhaust pressure to keep it from leaking!

in my situation and numerous others..

how do we fix this issue i have a bunch of different ideas, but which is most cost effective



my choices are.....

relocate drain lower in block/ oil pan ?

buy a sump/ scavange pump and pump oil into pan (this is spendy but guaranteed fix !)

building a new mani is also spendy and time consuming!

i was kicking around bad pvc but in my case ????? idk

if you guys have any links to info about this would be great!

if i see another thread about a blown turbo seal im going to loose my mind

here is my first look at a journal bearing turbo! before you say buy a garrett turbo!

Smokey turbo theory, random thoughts - YouTube

Smokey turbo theory, random thoughts - YouTube

pte uses the same exact housing! so does turbocnetics and same with the china charger turbos and most other t3 jurnal bearing turbos all share the same housing!
their a great design and work well if installed properly! that is why it is so widely used

i don't think turbos smoking were much of a problem, till compact cars started using turbos were space constraints, are getting the turbo to low in the engine bay, and some basic fundamentals are being overlooked like 8'' of min drop on a oil drain before any bends. and get it in above the oil level.

which is not happening in my car unless scavenge system or drain relocate or mani revision to raise turbo....

any ideas or suggestions to fix this problem, would be great ive been thinking about this for about 2 years now, and went as far as buying a turbo book, and basically came up empty on the theory of how this all plays a role, as this is 90% of the problem with smokey turbos their are other reasons but im talking about proper placement, drain dues & dont's and how the pvc plays a role in this

[mason]

i like the pump idea

[Godsarmy]

id try to relocate your drain farther down or else you will have to go with a more costly option

[rigor]

ya the pump is like

250$

Turbowerx Base Model Electric Turbo Oil Scavenge Pump | eBay

[Tokay444]

twisted top mound ala perm.

[rigor]

Originally Posted by Tokay444 twisted top mound ala perm.

if i had to do it all over id definitely do a side winder setup!

way to far into this setup to quit now

and the perm tune is perfect! don't even know were my ap is at lol,

with the sb i messed with it every couple days

[rigor]

well so i decided to try a bigger drain 19mm or 3/4'' so definitely going to need a bigger hole in the block, or the oil pan not to excited about that..

[Boosted Beluga]

Hope it works out for you.

[Etipp98]

Thought about a restrictor? If you think it's oil backing up maybe dumping less in there in the first place will allow it to keep up with itself.

[rigor]

ive kicked it around but haven't, due to it being the only source of cooling...

my old drain had a very abrupt angle right on the bottom of the chra, possibly causing splashing and backing up, well im positive this is what's happening .

so i think a better drain will cure it, i need to pull the oil pan and see were the oil lvl is, and figure out were to put the drain.

hopefully their is a place above the oil level in the pan to put the drain.

my luck though, their is not room...

[Tokay444]

At least the oil level when running will be a lot lower.

[rigor]

Originally Posted by Tokay444 At least the oil level when running will be a lot lower.

i was looking in someones thread and seen how deep the pan is, boy it don't look very deep.
pull the pan fill with 5 quarts figure at least one qt busy oiling / running back to the pan? to find lvl...

bsd would lower the oil lvl, but is it advisable? oil may slosh with out the proper height of oil and expose the p/u or is that a non issue?

[Tokay444]

with bsd i think you add oil to maintain t
the level.

[Boosted Beluga]

^ yes I use 7qts of oil now.

[rfinkle2]

First thought I had was to clock the turbo differently.

[rigor]

well i got the drain in the pan what a pain in the ass they make nothing in one 1'' 20mm id drain all the way! should drain good!!





man it has be a long time sense i welded aluminum so the welds are ugly but oh well hope it don't leak

also deleted the balance shaft while i was their, man is my motor clean





also got the turbo rebuilt, it turned out good, kinda miffed the hardware was for a lot smaller compressor so lots of the kit was wasted

[Boosted Beluga]

Good luck.

[Tokay444]

Looking good bro. Anxious to see what happens next.

[rigor]

shit i hope it works

built my own bsd goodie





then built a little bigger one for my old turbo drain hole warning poor video vvv



i have most of the shit ready, i just need to get the part that comes off the turbo welded up, and fire it all together

and wire in my turbo timer

[rigor]

its running boy vibes with bsd





all that is left is the turbo timer....







19mm ID turbo with pan locate - YouTube

[Boosted Beluga]

Problem solved?

[rigor]

every thing seems good, no oil smell on exiting the car, but if that is still a problem im sure that will take a while to devlope
but every thing is done turbo timer installed, can lock it while its running like normal, and the whole 9 yards

also bypassed the clutch switch

and no leaks

ill keep you posted if it starts smoking again but i doubt it

i put 7 quarts and it is still only half way up the add area lol

[rigor]

about a 100 miles no odor of oil at all

and it defiantly makes a difference pulling the balance shaft

it accelerates noticeably quicker especially right when you roll on boost

[CorkSport]

We had similar problems in the past with Rx7s and big turbos where the manifolds did not sit very high. You solution you took is how we were able to overcome it as well, the biggest possible drain you could fit.

Derrick

[rigor]

well it seemed to do the trick no smoking at all! runs great lol, probably pop now....

and the vibes skip my cd player........

but it makes a big diff in response,so im not putting it back in + i picked up about 20 miles to a tank, if im not leaning on it real hard...

found that kinda weird

yous to get 270 miles with 1/4 left, now i get 290 go figure?