RX7Club.com - Mazda RX7 Forum

2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
Sponsored by:
Banzai Racing

Sub zero system question

Thread Tools
 
Search this Thread
 
Old 11-20-09, 08:50 PM
  #1  
Rebuild my Rotary
Thread Starter
 
86RotaryRx7's Avatar
 
Join Date: Nov 2009
Location: Levittown
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
PA Sub zero system question
I would like to know if removing the sub zero system will make the car run better, exacly what does it do and how do i remove it.
86RotaryRx7 is offline  
Reply Like
Old 11-20-09, 09:11 PM
  #2  
Rotary Enthusiast

iTrader: (8)
 
Brodie121's Avatar
 
Join Date: Oct 2009
Location: BC, Canada
Posts: 848
Likes: 0
Received 7 Likes on 7 Posts
supposedly it was supposed to be taken off by dealers but many cars still have them, the purpose of the system was to inject a mix of antifreeze into the engine to up the compression and help on cold starts.
Brodie121 is offline  
Reply Like
Old 11-20-09, 09:14 PM
  #3  
In a Bucket
iTrader: (8)
 
w.sen's Avatar
 
Join Date: Jun 2009
Location: ocala, florida
Posts: 468
Likes: 0
Received 0 Likes on 0 Posts
There was a technical service bulletin to remove it.. It shots a lil antifreeze into the intake manifold when cold temps. It not hard to take out. And won't affect how the car runs.
w.sen is offline  
Reply Like
Old 11-20-09, 09:51 PM
  #4  
Full Member
 
breezetime's Avatar
 
Join Date: Aug 2009
Location: mass
Posts: 162
Likes: 0
Received 0 Likes on 0 Posts
what year is your car and make ?
breezetime is offline  
Reply Like
Old 11-20-09, 11:44 PM
  #5  
*reallly knowing the fc

 
R.E.wing_FC3s's Avatar
 
Join Date: May 2007
Location: victory lane
Posts: 160
Likes: 0
Received 0 Likes on 0 Posts
just fill the tank with methanol and wire the pump to a boost activated switch. i do it all the time.
R.E.wing_FC3s is offline  
Reply Like
Old 11-20-09, 11:57 PM
  #6  
Rotary Freak

iTrader: (9)
 
turboIIrotary's Avatar
 
Join Date: Feb 2007
Location: dayton,ohio
Posts: 2,618
Likes: 0
Received 3 Likes on 3 Posts
yeah there supposed to be removed and in the manual it says hold gas pedal on cold starts lol.
turboIIrotary is offline  
Reply Like
Old 11-21-09, 12:26 AM
  #7  
In a Bucket
iTrader: (8)
 
w.sen's Avatar
 
Join Date: Jun 2009
Location: ocala, florida
Posts: 468
Likes: 0
Received 0 Likes on 0 Posts
?
Originally Posted by R.E.wing_FC3s
just fill the tank with methanol and wire the pump to a boost activated switch. i do it all the time.
Does this give extra power? I got a N/A .. Can you use windsheild wiper fuild it has methanol in it.
w.sen is offline  
Reply Like

Trending Topics

Old 11-21-09, 12:57 AM
  #8  
Super-Pinoy

iTrader: (3)
 
PnoyRx7's Avatar
 
Join Date: Jul 2009
Location: Hamilton, Ontario
Posts: 1,725
Received 16 Likes on 16 Posts
do you need block off plates as well ? i was wondering for a long time how it never got empty for 22 years XD lol .
PnoyRx7 is offline  
Reply Like
Old 11-21-09, 01:17 AM
  #9  
In a Bucket
iTrader: (8)
 
w.sen's Avatar
 
Join Date: Jun 2009
Location: ocala, florida
Posts: 468
Likes: 0
Received 0 Likes on 0 Posts
I made a lil block off plate on mine .. I've also seen leaveing on the lil nozzle thing on the upper intake mani and just putting a cap on it.
w.sen is offline  
Reply Like
Old 11-21-09, 01:27 AM
  #10  
Super-Pinoy

iTrader: (3)
 
PnoyRx7's Avatar
 
Join Date: Jul 2009
Location: Hamilton, Ontario
Posts: 1,725
Received 16 Likes on 16 Posts
is it just two bolts too remove the bottle and thats it ?
PnoyRx7 is offline  
Reply Like
Old 11-21-09, 03:17 AM
  #11  
In a Bucket
iTrader: (8)
 
w.sen's Avatar
 
Join Date: Jun 2009
Location: ocala, florida
Posts: 468
Likes: 0
Received 0 Likes on 0 Posts
Yep and the lil nozzle thing on the upper intake manifold.. Or u could leave that and put and vac line cap on it... or make a lil block off plate.
w.sen is offline  
Reply Like
Old 11-21-09, 10:34 AM
  #12  
Rebuild my Rotary
Thread Starter
 
86RotaryRx7's Avatar
 
Join Date: Nov 2009
Location: Levittown
Posts: 34
Likes: 0
Received 0 Likes on 0 Posts
i have all the info i need thanks all of you.
86RotaryRx7 is offline  
Reply Like
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
FC or FD sub frame?
sctRota
Old School and Other Rotary
7
11-10-15 12:57 PM
Power FC Injector Setup 550/1680cc
bryancmatthews
Power FC Forum
14
10-05-15 08:49 PM
Back to Subforum
2nd Generation Specific (1986-1992)
View Next Unread
Which turbo LSD? LSD or Viscous




Advanced Search
Quick Reply: Sub zero system question


Reply Closed Thread Share

All times are GMT -5. The time now is 05:18 AM.