2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Eurospec 5,6th ports don't use rotating sleeves? What gives?

Thread Tools
 
Search this Thread
 
Old Feb 3, 2006 | 11:03 AM
  #1  
n/a-luvr's Avatar
Thread Starter
certified nutz and boltz
Tenured Member 05 Years
 
Joined: Jan 2006
Posts: 230
Likes: 0
From: myrtle beach, sc
Eurospec 5,6th ports don't use rotating sleeves? What gives?

Just cruising threads looking for info on 5th, 6th port dynamics (specifically cutback) and came across a thread stating that european 5th,6th ports use butterfly valves and not rotating sleeves?

Does anyone know why / what gains, loses the butterfly system offers or did I just read the thread wrong? thanks ~rich
Reply
Old Feb 3, 2006 | 11:05 AM
  #2  
alexdimen's Avatar
TANSTAFL
Tenured Member 15 Years
iTrader: (13)
 
Joined: Oct 2003
Posts: 3,770
Likes: 128
From: Richmond, Va.
i thought euro/japan were the same
Reply
Old Feb 3, 2006 | 11:34 AM
  #3  
RETed's Avatar
Lives on the Forum
Tenured Member 10 Years
 
Joined: Feb 2001
Posts: 26,664
Likes: 22
From: n
Originally Posted by alexdimen
i thought euro/japan were the same
Japan did not have non-turbos.


-Ted
Reply
Old Feb 3, 2006 | 06:38 PM
  #4  
NZConvertible's Avatar
I'm a boost creep...
Tenured Member 05 Years
 
Joined: Jan 2002
Posts: 15,608
Likes: 8
From: Auckland, New Zealand
Originally Posted by n/a-luvr
Just cruising threads looking for info on 5th, 6th port dynamics (specifically cutback) and came across a thread stating that european 5th,6th ports use butterfly valves and not rotating sleeves?
Why Mazda did this is a complete mystery. Published power figures were the same for both engines. Personally I think it's a better system but only because it was actuated by an ECU-controlled vacuum solenoid similar to the S5's.

There's some info and pics in here:

http://wombat.sevarg.net/RX7/RX-7_Tr...%20Systems.pdf (~3.5MB)
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
4X4CrewDu
Introduce yourself
0
Aug 24, 2015 08:44 AM
Leeroy_25
3rd Generation Specific (1993-2002)
4
Aug 17, 2015 12:53 PM
Feffman
Racing Kills Lounge
0
Aug 15, 2015 06:19 AM




All times are GMT -5. The time now is 01:04 PM.