Notices
911 Forum 1964-1989
Sponsored by:
Sponsored by: Intercity Lines, LLC

2.7 Engine question

Thread Tools
 
Search this Thread
 
Old Oct 29, 2003 | 04:28 PM
  #1  
classic911's Avatar
classic911
Thread Starter
Instructor
 
Joined: Feb 2003
Posts: 240
Likes: 1
From: Katonah, NY
Default 2.7 Engine question

Did the 2.7 euro engine have the same problems as the U.S. market ones?

In addition, did the famous 2.7 RS motor have those problems? I'm assuming they didn't as they were never sold in the U.S. and thus didn't have to meet US standards.

Thanks!
Reply
Old Oct 29, 2003 | 07:41 PM
  #2  
J-McDonald's Avatar
J-McDonald
Pro
 
Joined: Aug 2001
Posts: 707
Likes: 0
From: Washington, D.C.
Default

The problem, from what I understand, is the 2.7's magnesium (rather than aluminum) case, which is the same for USA and ROW engines. The weakness resulting from using that material is aggravated by the US-only smog equipment (thermal reactors), which cause the engines to run much hotter.
Reply
Old Oct 29, 2003 | 10:55 PM
  #3  
Steve Weiner-Rennsport Systems's Avatar
Steve Weiner-Rennsport Systems
RL Technical Advisor
 
Joined: May 2001
Posts: 11,870
Likes: 75
From: Portland Oregon
Default

Hi:

The Euro 2.7 RS (MFI) engines did not suffer the ills of the CIS-injected ones due to far lower operating temps.

Rule of Thumb:

If you keep the oil temps on a mag-cased engine at or below 200 deg F, they will last every bit as long as an aluminum-cased engine will. Mag-cased engines are very durable & trouble free when kept cool. They are simply intolerant of high operating temps.
Reply
Old Oct 30, 2003 | 01:06 AM
  #4  
user 91164747337's Avatar
user 91164747337
Banned
 
Joined: Oct 2003
Posts: 53
Likes: 0
Default

Steve, as I might be racing my 2.7, are there some easy ways to help meet that advice?
Reply
Old Oct 30, 2003 | 01:33 AM
  #5  
Steve Weiner-Rennsport Systems's Avatar
Steve Weiner-Rennsport Systems
RL Technical Advisor
 
Joined: May 2001
Posts: 11,870
Likes: 75
From: Portland Oregon
Default

LOL,....THE easy way is install a large enough oil cooler to keep the engine temps within bounds under ALL conditions. Use a 930 oil pump.

Depending upon your racecar and its body configuration, I'd recommend a properly installed big front oil cooler (B&B) or two fender mounted coolers in series (Carrera or B&B). Both cooler installations must get lots of air, both in & out,....

Plumb everything with AN-16.
Reply
Old Nov 1, 2003 | 11:01 AM
  #6  
pjc's Avatar
pjc
Burning Brakes
 
Joined: Nov 2002
Posts: 801
Likes: 6
From: United Kingdom
Default

Head studs still pull on Euro engines - time catches up with them all eventually.

PJC
Reply
Old Nov 1, 2003 | 02:41 PM
  #7  
Steve Weiner-Rennsport Systems's Avatar
Steve Weiner-Rennsport Systems
RL Technical Advisor
 
Joined: May 2001
Posts: 11,870
Likes: 75
From: Portland Oregon
Default

PJC:

LOL,....Not if they are kept cool. Its all about temperatures.

I have several 20+ year old RS-spec (210-240HP), mag-cased motors here with no case-savers, steel studs and nary a problem.

Control that oil temperature and you'll have no issues.
Reply
Old Nov 2, 2003 | 08:56 AM
  #8  
Rouxzy's Avatar
Rouxzy
Advanced
 
Joined: Nov 2002
Posts: 85
Likes: 1
From: New Hampshire
Default

I agree with Steve. I have a '77, 2.7 with over 140k on the motor and the engine has Never been opened up. This was originally a Texas car but always had proper cooling and maintenance. Also I run Mobil 1 in her and there are virtually no leaks at all.
Reply




All times are GMT -3. The time now is 09:39 AM.