3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

Rx7 Store High Flow Cat

Thread Tools
 
Search this Thread
 
Old 04-05-11, 10:54 PM
  #1  
Senior Member

Thread Starter
iTrader: (2)
 
Reno_NVFD's Avatar
 
Join Date: Mar 2011
Location: Reno, NV
Posts: 364
Likes: 0
Received 0 Likes on 0 Posts
Rx7 Store High Flow Cat

I just got a rx7 store high flow cat and was wondering what the deal with the air pump was. The cat has the tube to install it but no flange and there seems to be a cap welded on the end of the tube. Do I have to get someone to weld the proper flange on the tube? Or is there a trick? I just have to pass the sniffer test here in Nevada.

I just got my rx7 and have no idea what the air pump tube looks like Im just assuming there should be a flange. Right now the car has a midpipe installed.
Old 04-06-11, 11:28 AM
  #2  
Senior Member

Thread Starter
iTrader: (2)
 
Reno_NVFD's Avatar
 
Join Date: Mar 2011
Location: Reno, NV
Posts: 364
Likes: 0
Received 0 Likes on 0 Posts
Nevermind I think I figured out the air pump thing.
Old 04-06-11, 12:35 PM
  #3  
Rotary Freak

iTrader: (4)
 
Wompa164's Avatar
 
Join Date: Oct 2002
Location: Dallas, TX
Posts: 1,673
Received 10 Likes on 9 Posts
Care to share the resolution? That's more helpful for people that might have the same question in the future.

What about just cutting off the welded end of the air pump tube on the cat? Perhaps they ship it welded shut because they know most people won't be running the air pump, but want to give people the option in case they do.
Old 04-06-11, 03:28 PM
  #4  
The one
iTrader: (5)
 
Jason's Avatar
 
Join Date: Jul 2001
Location: Fort Worth, TX
Posts: 3,862
Likes: 0
Received 4 Likes on 4 Posts
The cat has a tube coming off it that you run the airpump to. You have to remove the flange off the stock tube and clamp it to the high flow cat.
Old 04-06-11, 10:07 PM
  #5  
Senior Member

iTrader: (3)
 
MIBagentQ's Avatar
 
Join Date: Jun 2006
Location: Canada
Posts: 399
Likes: 0
Received 2 Likes on 2 Posts
I took my cap off with a pair of pliers, took some convincing but it did eventually just slip off.
Old 04-07-11, 04:09 PM
  #6  
Senior Member

Thread Starter
iTrader: (2)
 
Reno_NVFD's Avatar
 
Join Date: Mar 2011
Location: Reno, NV
Posts: 364
Likes: 0
Received 0 Likes on 0 Posts
I did some searching on Google and found aaroncake had a write up on installing a bonez high flow and I follwed his procedure. Here is the link to check out his process.

http://www.aaroncake.net/rx-7/cat.htm
Old 04-07-11, 07:14 PM
  #7  
Rotary Enthusiast

 
Join Date: Feb 2004
Location: california
Posts: 1,083
Likes: 0
Received 3 Likes on 3 Posts
keep the check valve and tube from the stock cat and connect it. everything will work fine
Old 06-21-12, 08:52 PM
  #8  
Senior Member

Thread Starter
iTrader: (2)
 
Reno_NVFD's Avatar
 
Join Date: Mar 2011
Location: Reno, NV
Posts: 364
Likes: 0
Received 0 Likes on 0 Posts
I know this thread is kinda of old but I was wondering how long these cats are supposed to last? I just went to smog about a week ago and failed only at idle for High HC, like 1500ppm. So its obvioulsy way high but everything seem to be running well. I have never had to look at problems related to smog besides the cat. I just had the motor reuilt and it has maybe 200 miles on it so Im wondering if the motor just hasnt sealed up well enough to stop unburnt fuel from getting past the seals and into the exhaust thus causing high HC's. I did drive around for about 40min before taking it to smog and I never turned it off. Id like to check to see if the airpump is working correctly can I just take the hose that feeds air into the cat off and see if air is coming out when the car is idleing?
Would the O2 feedback being off cause the car to have high HC?

The car runs well but occasionaly it idles a little wierd, it sounds lumpy or like the sound pulsates. I will try to include a video of it below, any advice greatly appreciated. I dont have any running FD's in my area to compare my idle against.

http://www.youtube.com/watch?v=FeaiY...ature=youtu.be

Mods

Apexi Intake
RB Dual Catback
RX7 Store High Flow Cat
Aftermarket Downpipe
Apexi PFC tuned by Karack (tuned at 10PSI, Stock Injectors)
Koyo Radiator
Old 06-25-12, 09:29 PM
  #9  
2SoonJr

iTrader: (8)
 
FD7KiD's Avatar
 
Join Date: Mar 2008
Location: OrangeCounty-Santa Ana
Posts: 525
Likes: 0
Received 5 Likes on 4 Posts
Originally Posted by Reno_NVFD
I know this thread is kinda of old but I was wondering how long these cats are supposed to last? I just went to smog about a week ago and failed only at idle for High HC, like 1500ppm. So its obvioulsy way high but everything seem to be running well. I have never had to look at problems related to smog besides the cat. I just had the motor reuilt and it has maybe 200 miles on it so Im wondering if the motor just hasnt sealed up well enough to stop unburnt fuel from getting past the seals and into the exhaust thus causing high HC's. I did drive around for about 40min before taking it to smog and I never turned it off. Id like to check to see if the airpump is working correctly can I just take the hose that feeds air into the cat off and see if air is coming out when the car is idleing?
Would the O2 feedback being off cause the car to have high HC?

The car runs well but occasionaly it idles a little wierd, it sounds lumpy or like the sound pulsates. I will try to include a video of it below, any advice greatly appreciated. I dont have any running FD's in my area to compare my idle against.

Mods

Apexi Intake
RB Dual Catback
RX7 Store High Flow Cat
Aftermarket Downpipe
Apexi PFC tuned by Karack (tuned at 10PSI, Stock Injectors)
Koyo Radiator
BRO I HAD THE SAME PROBLEM WHEN MY CAR GOT SMOGGED LAST MONTH AND I PUT IT DOWN FOR THE BROWN THAT "G2P" WORKS AND WILL BRING ALL YOUR NUMBERS WAY DOWN SO YOU CAN PASS WITH FLYING COLORS. YOU CAN PICK IT UP AT AUTOZONE FOR LIKE $12 FOLLOW THE INSTRUCTIONS AND YOULL BE GOLDEN

G2P = GUARANTEED TO PASS
Old 09-09-12, 02:43 PM
  #10  
Full Member

 
DOHC Vobra's Avatar
 
Join Date: Mar 2002
Location: Simi Valley, CA
Posts: 143
Likes: 0
Received 1 Like on 1 Post
Old thread, but wanted to add a helpful hint for people wanting to re-connect the air pump to high-flow cats.

Incase you end up with a high flow cat that's missing the tubing for the air pump, I found this one worked really well:

Walker 35574 - Catalytic converter air tube kit, about $20

I found one at my local OReilly's, but it's available on amazon/summit etc too.

Comes with the hose and extension tube, just cut the old tube at the one-way valve, and insert this tube with the supplied high-temp couplers, fit perfect!

Justin
The following users liked this post:
tomatoto (07-30-19)
Old 09-09-12, 02:55 PM
  #11  
Sharp Claws

iTrader: (30)
 
RotaryEvolution's Avatar
 
Join Date: Oct 2003
Location: Central Florida
Posts: 5,107
Likes: 0
Received 41 Likes on 40 Posts
it may need to be tweaked at the lower end since it was tuned on the sub 80psi compression engine. do you have a datalogit?

Last edited by RotaryEvolution; 09-09-12 at 03:01 PM.
Old 09-10-12, 03:07 PM
  #12  
Senior Member

Thread Starter
iTrader: (2)
 
Reno_NVFD's Avatar
 
Join Date: Mar 2011
Location: Reno, NV
Posts: 364
Likes: 0
Received 0 Likes on 0 Posts
I have access to a dataloggit. I got the car registered and everything by getting a waiver. I would like to take some logs so I can take some of the fuel out. I think its running pretty rich. I have bad gas mileage and the wideband reads 7.5-9 most of the time. What kind of log should I take?
Old 10-30-12, 12:08 AM
  #13  
where do the pistons go?
 
stilly415's Avatar
 
Join Date: Oct 2012
Location: Arizona
Posts: 13
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by akagi's_white_comet
BRO I HAD THE SAME PROBLEM WHEN MY CAR GOT SMOGGED LAST MONTH AND I PUT IT DOWN FOR THE BROWN THAT "G2P" WORKS AND WILL BRING ALL YOUR NUMBERS WAY DOWN SO YOU CAN PASS WITH FLYING COLORS. YOU CAN PICK IT UP AT AUTOZONE FOR LIKE $12 FOLLOW THE INSTRUCTIONS AND YOULL BE GOLDEN

G2P = GUARANTEED TO PASS
what is g2p. trying to pass this Damn test without spending on New cat
Old 08-20-13, 06:42 PM
  #14  
sherevvs
iTrader: (18)
 
tangoshark's Avatar
 
Join Date: Mar 2010
Location: Lake Oswego OR USA
Posts: 220
Likes: 0
Received 3 Likes on 2 Posts
So you will have to cut the rubber hose in two pieces to connect the cut off flange to the extension metal tube then connect to the nipple on bones?

Thanks


Originally Posted by DOHC Vobra
Old thread, but wanted to add a helpful hint for people wanting to re-connect the air pump to high-flow cats.

Incase you end up with a high flow cat that's missing the tubing for the air pump, I found this one worked really well:

Walker 35574 - Catalytic converter air tube kit, about $20

I found one at my local OReilly's, but it's available on amazon/summit etc too.

Comes with the hose and extension tube, just cut the old tube at the one-way valve, and insert this tube with the supplied high-temp couplers, fit perfect!

Justin
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Queppa
New Member RX-7 Technical
8
09-02-18 09:53 AM
thecody59
1st Generation Specific (1979-1985)
40
08-23-15 06:41 PM



Quick Reply: Rx7 Store High Flow Cat



All times are GMT -5. The time now is 09:01 AM.