Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

New Product: Precision Motorwerks Crankcase Ventilation Kit

Thread Tools
 
Search this Thread
 
Old 10-16-2018, 12:25 PM
  #61  
SteveG
Rennlist Member
 
SteveG's Avatar
 
Join Date: Jul 2001
Location: New York
Posts: 6,492
Received 95 Likes on 76 Posts
Default

Greg: Thanks for the info. It just turned over 80K. Would Techron qualify as carbon softener? I ran a tank with that on this last trip; planning on doing some more.
Old 10-16-2018, 03:53 PM
  #62  
GregBBRD
Rennlist
Basic Site Sponsor
Thread Starter
 
GregBBRD's Avatar
 
Join Date: Feb 2005
Location: Anaheim
Posts: 15,221
Received 2,457 Likes on 1,460 Posts
Default

Originally Posted by SteveG
Greg: Thanks for the info. It just turned over 80K. Would Techron qualify as carbon softener? I ran a tank with that on this last trip; planning on doing some more.
The oil carbon that gets on top of the pistons and jams up the oil control rings is very hard stuff....and very difficult to soften.

I'd run something more aggressive, like Liqui Moly valve cleaner, Berryman B-12 Chemtool fuel system cleaner, or SeaFoam, in the fuel tank.

I've sucked B-12 Chemtool right into the intake system....and allowed the engine to almost stall. I then allow the engine to sit for 24 hours (soak) and then restart, immediately getting it warm and driving hard.
__________________
greg brown




714 879 9072
GregBBRD@aol.com

Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!





Old 10-17-2018, 12:53 PM
  #63  
hacker-pschorr
Administrator - "Tyson"
Lifetime Rennlist
Member
 
hacker-pschorr's Avatar
 
Join Date: Aug 2001
Location: Up Nort
Posts: 1,453
Received 2,072 Likes on 1,183 Posts
Default

Have you developed such a kit for the 16V cars?
Old 10-17-2018, 01:41 PM
  #64  
GregBBRD
Rennlist
Basic Site Sponsor
Thread Starter
 
GregBBRD's Avatar
 
Join Date: Feb 2005
Location: Anaheim
Posts: 15,221
Received 2,457 Likes on 1,460 Posts
Default

Originally Posted by Hacker-Pschorr
Have you developed such a kit for the 16V cars?
Yes, but no.

An example is on Van's stroker and works fantastic. I'm not using a Mann filter in this application, (because a filter needs to be serviced routinely and that costs money.) Therefore, tiny amounts of oil mist can be found on the plenum walls (looks like someone lightly sprayed WD40 on parts of the walls, but no drips and certainly no puddles form.

I call that 99% effective at removing the oil from the intake air, while still having a closed crankcase. Pretty amazing improvement.

The problem, in terms of a kit being available:
I'm really tired of doing 100's of hours of research and development, creating custom pieces, and testing stuff for extended periods of time, only to have some crook/crooks copy my work.

It is amazingly cheap to copy, instead of creating! I get it. When there is no developmental costs to try to recover, the profit margin of copied stuff is huge!

​​Therefore, this system and the proprietary pieces that make this system work will only be available in house.

I've also made changes to the system referenced in this thread....eliminating the Mann filter to eliminate the service requirement of that filter, as well as adding in some of the proprietary pieces invented for the S3 system. I no longer sell that system to the general public, either.










​​​​

Last edited by GregBBRD; 10-17-2018 at 06:29 PM.
Old 10-17-2018, 01:58 PM
  #65  
Bigfoot928
Drifting
 
Bigfoot928's Avatar
 
Join Date: Mar 2013
Posts: 3,266
Received 261 Likes on 179 Posts
Default

Originally Posted by GregBBRD
Yes, but no.

An example is on Van's stroker and works fantastic. I'm not using a Mann filter in this application, (because a filter needs to be serviced routinely and that costs money.) Therefote, tiny amounts of oil mist can be found on the plenum walls (looks like someone lightly sprayed WD40 on parts of the walls, but no drips and certainly no puddles form.

I call that 99% effective at removing the oil from the intake air, while still having a closed crankcase. Pretty amazing improvement.

The problem, in terms of a kit being available:
I'm really tired of doing 100's of hours of research and development, creating custom pieces, and testing stuff for extended periods of time, only to have some crook/crooks copy my work.

It is amazingly cheap to copy, instead of creating! I get it. When there is no developmental costs to try to recover, the profit margin of copied stuff is huge!

​​Therefote, this system and the proprietary pieces that make this system work will only be available in house.

I've also made changes to the system referenced in this thread....eliminating the Mann filter to eliminate the service requirement of that filter, as well as adding in some of the proprietary pieces invented for the S3 system. I no longer sell that system to the general public, either.

​​​​
Greg,
I understand about development costs and loosing that to those that copy. I'm just bummed that it can't be purchased. I would really prefer a sealed system that doesn't coat the intake with oil and doesn't require the Mann filter. I'm stuck buying one off pieces and building my own that may take years to hit on the winning combination if ever.
Old 10-17-2018, 02:00 PM
  #66  
SwayBar
Drifting
 
SwayBar's Avatar
 
Join Date: Feb 2006
Location: Chicago Bears
Posts: 3,477
Received 291 Likes on 198 Posts
Default

Have you seen the stainless steel filter element for the Provent?

Works perfectly on the GT racecar with its output going directly to the intake thru the metered plastic plug which is normally on the 87's oil fill neck.

Input is from 1" outlet on oil filler cap. The front valve-cover ports are connected to one another, as well as the rear valve-cover ports.

Oil drain goes directly into oil pan via a one-way valve.

Key to all this is the staggered baffle down in the block under the oil filler tower.

SS Filter...
Old 10-17-2018, 02:04 PM
  #67  
Bigfoot928
Drifting
 
Bigfoot928's Avatar
 
Join Date: Mar 2013
Posts: 3,266
Received 261 Likes on 179 Posts
Default

Originally Posted by SwayBar
Have you seen the stainless steel filter element for the Provent? Works perfectly on the GT racecar.

SS Filter...
I'd actually prefer to have a canister made that that filter would slip into with better placed inlet and outlet, with a larger drain. Then I could just screw off the top and it could also double as an oil filler port.



Quick Reply: New Product: Precision Motorwerks Crankcase Ventilation Kit



All times are GMT -3. The time now is 03:51 PM.