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

Quick spark plug question

Thread Tools
 
Search this Thread
 
Old Dec 22, 2012 | 02:40 PM
  #1  
86rxNa's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2011
Posts: 303
Likes: 2
From: Md
Quick spark plug question

So I think I flooded my engine which prompted me to pull the plugs. I have wanted to do this since I bought the car a few months back but anyway I pulled them and they looked terrible. I noticed they were all bur 9's. In my other one I have bur 6 n 8's which are new. Should I just swap them or go get 7's and 9's or just all 9's. Ive read the threads on the differences but it still confuses me. So will my 6's and 8's be fine till I can get some new ones or should I just wait?
Reply
Old Dec 22, 2012 | 03:00 PM
  #2  
AGreen's Avatar
Trunk Ornament
Tenured Member: 15 Years
iTrader: (11)
 
Joined: Sep 2006
Posts: 3,054
Likes: 2
From: Goose Creek, SC
BUR9EQ's are a "colder" spark plug. If you're daily driving the car, then get the BUR7EQ for leading and BUR9EQ for trailing. Your fuel mileage will increase, driveability will improve, everything. Putting BUR9EQ's all around is pretty much what you'd want to do if you were running the car on the track at high RPM all the time.

I recommend reading Wikipedia's blurb about spark plugs. Very informative. Especially the part about "heat range", about 2/3 of the way down.

http://en.wikipedia.org/wiki/Spark_plug
Reply
Old Dec 22, 2012 | 11:17 PM
  #3  
misterstyx69's Avatar
Retired Moderator, RIP
Tenured Member: 20 Years
iTrader: (142)
 
Joined: Sep 2005
Posts: 25,581
Likes: 136
From: Smiths Falls.(near Ottawa!.Mapquest IT!)
7's and 9's Make the SEVEN feel fine.
Honestly,just get 7's and 9's.It has been proven they work,why screw with other stuff?.
When you start skimping out on Parts for these cars,they will bite you in the ***.
Reply
Old Dec 23, 2012 | 10:57 AM
  #4  
86rxNa's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2011
Posts: 303
Likes: 2
From: Md
Just got back from the parts store, I got the 7's and 9's and am happy about it lol. Hope she fires up when I put them in. I can't remember why I have 6's and 8's in my other car and I'm thinking it had something to do with the engine blowing up. I always ran the 7's and 9's before and had no problems. Hopefully im back on the right track.
Reply
Old Dec 23, 2012 | 12:21 PM
  #5  
RotaryEvolution's Avatar
Sharp Claws
Tenured Member 15 Years
iTrader: (30)
 
Joined: Oct 2003
Posts: 5,107
Likes: 50
From: Central Florida
6 and 8 was pre FC plug heat ranges.
Reply
Old Dec 23, 2012 | 12:26 PM
  #6  
86rxNa's Avatar
Thread Starter
Senior Member
 
Joined: Jun 2011
Posts: 303
Likes: 2
From: Md
Got the plugs in and all is well. At first I was worried cause it didn't fire right up and I could hear a strange clicking noise. After that I pulled the egi fuse and turned it over a couple times and tried again. Finally she started to sound like it was going to start and then did. I left a nice cloud of smoke in my neighborhood lol. I guess this is nothing new but figured I would share my experiences.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
trickster
2nd Generation Specific (1986-1992)
25
Jul 1, 2023 04:40 PM
The1Sun
New Member RX-7 Technical
9
Mar 18, 2018 11:08 PM
Snoopy FD
Build Threads
25
Dec 8, 2015 01:45 PM
alphawolff
1st Generation Specific (1979-1985)
17
Nov 17, 2015 05:57 PM
Joe428
1st Generation Specific (1979-1985)
16
Aug 19, 2015 06:24 PM




All times are GMT -5. The time now is 05:59 AM.