Recent Topics
Hey BusyLittleShop
by Shannow - 10/21/19 04:47 AM
TT Equalizer: MORryde CRE3000 VS Lippert Equa-Flex
by SavagePatch - 10/21/19 12:53 AM
Milwaukee 2485-20 M12 1/4” Right Angle Die Grinder
by The Critic - 10/21/19 12:41 AM
Group 78 Battery Connector Issues
by Falcon_LS - 10/21/19 12:37 AM
Factors that can affect warming up time
by SlavaB - 10/20/19 11:59 PM
A nokian lineup review
by UG_Passat - 10/20/19 11:19 PM
Dealer Oil Change
by HowAboutThis - 10/20/19 10:35 PM
small qty of automitive paint
by danez_yoda - 10/20/19 09:36 PM
2017 Chevy Cruze recommended oil filter
by Electromotive - 10/20/19 09:13 PM
4L80E to Allison filter conversion
by P10crew - 10/20/19 09:03 PM
Pickles and gardenia
by 53' Stude - 10/20/19 09:00 PM
Weird Electrical Problems Due To Bad Ground.
by RayCJ - 10/20/19 08:59 PM
ECOGARD X 4610 CUT OPEN
by 53' Stude - 10/20/19 08:23 PM
FRAM ULTRA 7317 CUT OPEN
by 53' Stude - 10/20/19 08:17 PM
Easy to use free video editor
by Rat407 - 10/20/19 08:11 PM
Best budget tire for 2006 Nissan Pathfinder SE
by Dogred08 - 10/20/19 07:51 PM
Latest on SSD, HDD and USB Drives?
by JHZR2 - 10/20/19 07:43 PM
Oxy Clean On Leather Seats...WoW
by Warstud - 10/20/19 07:22 PM
Winter street biking
by CourierDriver - 10/20/19 06:47 PM
Newest Members
AltairJr, PMSARATOGA, bobmay460, RoddyCGA, whizznbyu
69628 Registered Users
Who's Online Now
36 registered members (4WD, billt460, 1960Elco, 87sammy, BlakeB, bbhero, 3 invisible), 876 guests, and 23 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics296,251
Posts5,094,231
Members69,624
Most Online3,532
Jul 30th, 2019
Donate to BITOG
Print Thread
Hop To
Restrictor Ramblings #5006572 02/10/19 09:57 AM
Joined: Oct 2004
Posts: 3,398
B
beanoil Offline OP
OP Offline
B
Joined: Oct 2004
Posts: 3,398
I got this idea from a thread on an import board. The discussion was in regards to restricting oil to turbos.Might be old news to most of you, just sharing an idea.
In my mind the restrictor should be on the output of the head, after the filter. YMMV, some folks restrict the input. I do not know if it's critical either way, just that the majority of bypass systems restrict the out flow of the filter. This could still work even if the filter has a built in restrictor and you wanted to throttle it back more.
You'll have to figure out flow rate on your own, but I found it pretty easy to use a measuring cup, and count seconds to calculate quarts per minute/gallons an hour.
Thread the end of the fitting internally and add a hex head plug with red loctite on it to seal.
Just drill the size hole you want in the hex head.
1/32 drill bit is .0312
3/64 drill bit is .0468
1/16 drill bit is .0625




IMG_0143.jpgIMG_0145.jpg
Restrictor in fitting.

Last edited by beanoil; 02/10/19 09:58 AM.
Re: Restrictor Ramblings [Re: beanoil] #5006577 02/10/19 10:00 AM
Joined: Oct 2010
Posts: 9,991
Astro14 Offline
Offline
Joined: Oct 2010
Posts: 9,991
Why would you want to restrict oil going to the turbo?


32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Restrictor Ramblings [Re: beanoil] #5006580 02/10/19 10:02 AM
Joined: Oct 2004
Posts: 3,398
B
beanoil Offline OP
OP Offline
B
Joined: Oct 2004
Posts: 3,398
In that thread, some import guys had switched turbos and needed less oiling for their selection. Different bearings and seals.

Re: Restrictor Ramblings [Re: beanoil] #5006589 02/10/19 10:11 AM
Joined: Oct 2010
Posts: 9,991
Astro14 Offline
Offline
Joined: Oct 2010
Posts: 9,991
It's a new concept to me...

I've owned several turbo cars, and never considered restricting the oil flow to the turbo(s).

But then, my turbos have all remained stock. Even with a mild tune, I've not needed a different turbo...

Hard to believe there is such a thing as "too much oil" to the turbo.


32 Packard 15W40
01 Volvo V70 T5 0W30 AMSOIL SS
02 Volvo V70 T5 0W30 Edge
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Restrictor Ramblings [Re: beanoil] #5006658 02/10/19 11:10 AM
Joined: Jun 2002
Posts: 13,320
K
Kestas Offline
Global Moderator
Offline
Global Moderator
K
Joined: Jun 2002
Posts: 13,320
I still don't understand the downside of too much oil going to the turbo bearings.

Re: Restrictor Ramblings [Re: beanoil] #5006787 02/10/19 01:17 PM
Joined: Aug 2004
Posts: 2,478
D
double vanos Offline
Offline
D
Joined: Aug 2004
Posts: 2,478
Back in the Mazdaspeed 3 days a smoking turbo was an issue when you straight piped the exhaust system- no back pressure the theory went caused oil to get past the turbo seals and she’d smoke her a** off at idle. I ran both my Mazdaspeed 3s totally stock and never had a smoking turbo. No oil consumption either. Restricting the oil to the turbo was supposed to alleviate this.


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Restrictor Ramblings [Re: beanoil] #5006820 02/10/19 01:46 PM
Joined: Oct 2004
Posts: 3,398
B
beanoil Offline OP
OP Offline
B
Joined: Oct 2004
Posts: 3,398
I only got the idea from a turbo thread.
The restrictor idea seems solid to me, and would enable a generic filter head to be used with a bypass filter.
Heads for specific bypass filters have a restrictor built in, but oil pressure and viscosity can effect flow, and someone may want to slow that down.

Re: Restrictor Ramblings [Re: beanoil] #5006879 02/10/19 02:36 PM
Joined: Jun 2009
Posts: 553
5
555 Offline
Offline
5
Joined: Jun 2009
Posts: 553
Would you be kind enough to let us know what engine/vehicle/turbo you are modifying? At least for curiousity's sake since a lot of BITOG members like turbos.
Thanks


84 XJ6 M1
92 Mustang 5.0 Redline
99 Tahoe 2 door Castrol Edge
99 MX5 Miata Anniversary Edition M1
04 Subaru STi Motul
Re: Restrictor Ramblings [Re: beanoil] #5006988 02/10/19 03:51 PM
Joined: Dec 2016
Posts: 9,519
L
Linctex Offline
Offline
L
Joined: Dec 2016
Posts: 9,519
This is common practice.

It keeps the seals from having to hold back a Tsunami of oil.

A lot of factory installs have restrictors, you just don't realize it.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Restrictor Ramblings [Re: double vanos] #5007721 02/11/19 09:50 AM
Joined: Oct 2018
Posts: 131
Purpfox Offline
Offline
Joined: Oct 2018
Posts: 131
Same here, restricting the feed to the speed3. also kept the charge pipes much cleaner. (FMIC) turbo mainly need flow more so than pressure.


Certified Analyst ( by no means an expert Much to learn )
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™