Need Help With Header - NoPistons -Mazda Rx7 & Rx8 Rotary Forum
NoPistons -Mazda Rx7 & Rx8 Rotary Forum


2nd Generation Specific 1986-1992 Discussion

Reply
 
 
 
Thread Tools Search this Thread
Old 03-14-2003, 02:53 PM   #1  
Super Moderator
Thread Starter
 
Join Date: Sep 2002
Location: Tallahassee, FL
Posts: 5,425
Default

I took off my stock exhaust manifold and the cats. I noticed my header+presilencer is shorter than the stock stuff (previously had been used in a custom application). Also, the presilencer bolts were closer together than stock.



Anyway, exhaust guy cuts header off where it connects to presilencer, tells me to go ahead and put that on my car, and drive back there with just the header on. Then he'll rig up the presilencer to fit.



Additionally, he says he will need to eliminate the tube that went to the main cat. Do I need this to activate the 2ndary ports? Or does the backpressure activate the ports some other way?



I would really like to keep my secondary ports functional.
Baldy is offline   Reply With Quote
Old 03-14-2003, 02:57 PM   #2  
Super Moderator
Thread Starter
 
Join Date: Sep 2002
Location: Tallahassee, FL
Posts: 5,425
Default

also, what's with that little hole by the lower-left mounting bolt where the exhaust meets the engine? the racing beat header just blocks it off
Baldy is offline   Reply With Quote
Old 03-14-2003, 03:03 PM   #3  
Senior Member
 
Join Date: Oct 2002
Location: NC
Posts: 3,269
Default

Sorry, I'm no help with this.. but, why'd the guy cut off a piece of the header?
rx7machine is offline   Reply With Quote
Old 03-14-2003, 03:05 PM   #4  
Super Moderator
Thread Starter
 
Join Date: Sep 2002
Location: Tallahassee, FL
Posts: 5,425
Default

Quote:
Originally Posted by rx7machine' date='Mar 14 2003, 04:03 PM
Sorry, I'm no help with this.. but, why'd the guy cut off a piece of the header?
so he could create a sleeve (?) to affix it to the presilencer (?)



he does a lot of [illegal] exhaust stuff, so he seems to know what he's doing, I just can't understand all the words that come out of his mouth
Baldy is offline   Reply With Quote
Old 03-14-2003, 03:16 PM   #5  
Senior Member
 
Join Date: Oct 2002
Location: NC
Posts: 3,269
Default

Quote:
Originally Posted by Baldy' date='Mar 14 2003, 04:05 PM
so he could create a sleeve (?) to affix it to the presilencer (?)



he does a lot of [illegal] exhaust stuff, so he seems to know what he's doing, I just can't understand all the words that come out of his mouth
Oh ok.. Tell him to speak english..
rx7machine is offline   Reply With Quote
Old 03-14-2003, 03:40 PM   #6  
Senior Member
 
Join Date: Apr 2002
Location: IL
Posts: 2,930
Default

you need that tube, it's what provides the little tube on the lower intake manifold with exhaust for actuating the aux ports.



sounds like you found a hillbilly with a torch.
pengaru is offline   Reply With Quote
Old 03-14-2003, 03:46 PM   #7  
Senior Member
 
Join Date: Jan 2003
Location: Gardena CA
Posts: 199
Default

try contacting the manufacture if nothing else it will be reliable info!!!!!
needa86NAat is offline   Reply With Quote
Old 03-14-2003, 03:55 PM   #8  
Senior Member
 
Join Date: Oct 2002
Location: NC
Posts: 3,269
Default

Quote:
sounds like you found a hillbilly with a torch.
Yea, really.. beware who you take your car to. Never know what they [illegally] did to it..
rx7machine is offline   Reply With Quote
Old 03-14-2003, 05:02 PM   #9  
Senior Member
 
Join Date: May 2002
Location: California
Posts: 22,466
Default

you can use your air pump to actuate the 6 ports. what is the header from? racing beat?



mike
j9fd3s is offline   Reply With Quote
Old 03-14-2003, 05:19 PM   #10  
Senior Member
 
Join Date: Dec 2002
Location: QUEENS NYC
Posts: 1,687
Default

i want headers. I called a shop and they said that if i want to o2 sensor i have to pay $220 instead of 187 cause they got to make a hole in it for the o2 sensor is that true.

?
ROTARYROCKET7 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
what parts do you need for a split between header/gasket RyoNishi 2nd Generation Specific 23 03-06-2008 03:07 PM
Need Header And Short Shifter 1gendreemer RX-7 & RX-8 Parts For Sale & Wanted 0 04-07-2004 05:04 PM
Help,help,help I Need A Tuner & Mechanic up&coming 2nd Generation Specific 7 10-07-2003 09:17 PM
I Need A Header rawze 1st Generation Specific 7 09-17-2003 10:50 AM
Need To Find An Rx-7 Turbo..need Help! theoriginaljwil RX-7 & RX-8 For Sale 2 08-27-2003 03:44 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 08:23 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.