Naturally Aspirated Performance Forum Discussion of naturally-aspirated rotary performance. No Power Adders, only pure rotary power! From the "12A" to the "RENESIS" and beyond.

SA vs FB intake manifold

Thread Tools
 
Search this Thread
 
Old Apr 27, 2014 | 02:50 PM
  #1  
black82gsl's Avatar
Thread Starter
70 cubic inches of fury!
Tenured Member 05 Years
iTrader: (3)
 
Joined: Jun 2007
Posts: 313
Likes: 0
From: Port Edwards,Wisconsin
SA vs FB intake manifold

Is it worth the effort to install a SA intake on my 85 12a? I've heard they flow better?
Reply
Old Jun 26, 2014 | 06:41 PM
  #2  
Redline-RX3's Avatar
Senior Member
Tenured Member 05 Years
iTrader: (5)
 
Joined: Jan 2011
Posts: 356
Likes: 11
From: BC Canada
BC Intake question

It may be slightly better due to less pollution attachments but the one to go far if you
can find it would be the 12A RX3 ones from the 70's.
Reply
Old Jun 27, 2014 | 06:51 PM
  #3  
Sgt.Stinkfist's Avatar
premix, for f's sake
Tenured Member: 20 Years
iTrader: (6)
 
Joined: Jun 2004
Posts: 1,438
Likes: 5
From: madison, WI
the SA manifolds dont have the tiny throttle plate in one of the runners
Reply
Old Jun 27, 2014 | 07:30 PM
  #4  
73rx313b's Avatar
I actually own Rotaries
Tenured Member: 20 Years
Liked
Loved
Community Favorite
iTrader: (40)
 
Joined: Mar 2006
Posts: 2,128
Likes: 1,537
From: North Cackalacky
Ihave an old rx3 one left if interested....shoot me a pm
Reply
Old Jul 18, 2014 | 07:11 PM
  #5  
Rotary Powah's Avatar
Full Member
iTrader: (1)
 
Joined: Nov 2008
Posts: 213
Likes: 0
From: Birmingham
I just took my fb manifold and removed the coast valve. Then I plugged all the leftover holes with jb weld, and then went over it all with the dremel to make it smooth. Worked pretty well!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
Mar 15, 2022 12:04 PM
armans
Single Turbo RX-7's
1
Sep 6, 2015 09:02 PM




All times are GMT -5. The time now is 12:33 AM.