Go Back   986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat

Post Reply
 
LinkBack Thread Tools Display Modes
Old 02-22-2017, 10:42 AM   #1
Registered User
 
Join Date: Jan 2017
Posts: 99
Quote:
Originally Posted by Qmulus View Post
The oil cooling is not the big issue on a track car. Oil supply to the bearings is, and no added capacity oil pan, X51 baffles, dual scavenge pumps, etc., or even Accusump will solve it. Those are "peace of mind" fixes for street cars, but don't really solve the basic problem of oil control in the engine. The only true way to keep a tracked M96 or M97 alive is a dry sump system. You might be able to get away with some of the band aids for a while on some tracks, but sooner or later you will lose the bearings.
But those failures could be prevented by replacing the bearings with a refresh. The issue is that unless you need an engine to last a long period of time, refreshing it would be more cost effective.

On the subject of the cooler. Wouldn't having a better cooler cancel the benefits of running thicker oil? Wouldn't running a lighter fluid provide better flow and protection to areas with smaller passages? I know the argument about tracked(daily drivers) cars need thicker oil, but that is considering that oil will rise much higher then stock, lowering its weight to a more suitable thickness.

Also more heat taken from the oil = more heat in the coolant = higher average engine temperate. No idea if that is more suitable then a high but acceptable oil temperature with lower coolant temperatures.
__________________
2001 Boxster S (SOLD)
1991 Nissan Silvia "K"(Forgotten somewhere in Canada)
1989 240sx (Track car)
1987 325IS (Soon to be Spec E30 racecar)
2001 GSXR-600 (Almost warm outside!)
WorkInProgressK is offline   Reply With Quote
Old 02-22-2017, 11:33 AM   #2
Registered User
 
steved0x's Avatar
 
Join Date: Dec 2012
Location: FL
Posts: 4,144
Quote:
Originally Posted by WorkInProgressK View Post
Also more heat taken from the oil = more heat in the coolant = higher average engine temperate. No idea if that is more suitable then a high but acceptable oil temperature with lower coolant temperatures.
I have seen some approaches like with the LN or TuneRSMotorSports oil/water heat exchanger delete plate that split the oil cooling and the water cooling. Supposedly less load on the water cooling system, but you have to fit an external air to oil cooler to make up for the loss of the oil/water heat exchanger.
steved0x is offline   Reply With Quote
Old 02-22-2017, 12:16 PM   #3
Registered User
 
Join Date: May 2014
Location: S.California
Posts: 2,029
Quote:
Originally Posted by steved0x View Post
I have seen some approaches like with the LN or TuneRSMotorSports oil/water heat exchanger delete plate that split the oil cooling and the water cooling. Supposedly less load on the water cooling system, but you have to fit an external air to oil cooler to make up for the loss of the oil/water heat exchanger.
And it has to be fan-cooled so it is difficult to find space for all that bulk unless you place it in the trunk and ventilate it also.If you fit a minimalist exhaust - that creates some space as Mr.Stone has shown in some links.
Gelbster is offline   Reply With Quote
Old 02-22-2017, 01:15 PM   #4
Registered User
 
Join Date: Jan 2017
Posts: 99
Quote:
Originally Posted by Gelbster View Post
And it has to be fan-cooled so it is difficult to find space for all that bulk unless you place it in the trunk and ventilate it also.If you fit a minimalist exhaust - that creates some space as Mr.Stone has shown in some links.
I would say, thermostated sandwich plate with an E30 styled cooler located right under the oil filter attached to the brace plate would be easy to incorporate. We would have to test to see if the oil cooks at idle, but usually only at WOT that you start cooking oil.
__________________
2001 Boxster S (SOLD)
1991 Nissan Silvia "K"(Forgotten somewhere in Canada)
1989 240sx (Track car)
1987 325IS (Soon to be Spec E30 racecar)
2001 GSXR-600 (Almost warm outside!)
WorkInProgressK is offline   Reply With Quote
Old 02-22-2017, 01:45 PM   #5
Registered User
 
Join Date: May 2014
Location: S.California
Posts: 2,029
Quote:
Originally Posted by WorkInProgressK View Post
I would say, thermostated sandwich plate with an E30 styled cooler located right under the oil filter attached to the brace plate would be easy to incorporate. We would have to test to see if the oil cooks at idle, but usually only at WOT that you start cooking oil.
Plenty of Mocal/Setrab units in every shape and size. Just depends where you make the space.The space is the problem.
Gelbster is offline   Reply With Quote
Post Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 10:21 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2025, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2025 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page