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Rotary Performance Super CAT Midpipe

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Old 04-13-2005, 02:48 PM
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Originally Posted by Red Devil
...I think the car feels more powerful and do notice the sound more from the OEM intake suction....
Glad to see you got it fixed :D

I'm installing the RB intake this week, so hopefully I'll be able to feed this monster more air eventually :p
Old 04-13-2005, 03:05 PM
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The RB intake should really compliment the exhaust well. I was thinking about placing the order myself, but my want of forced induction is keeping me away from ordering the part.
Old 04-13-2005, 03:44 PM
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Dyno Chart Posted on RX7.COM

OK, they just put up their dyno...

8.7 HP increase :D

http://rx7.com/store/rx8/images/rx8supercat_factory.jpg
Attached Thumbnails Rotary Performance Super CAT Midpipe-rx8supercat_factory.jpg  
Old 04-13-2005, 03:51 PM
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I'd tend to agree with that from the seat of the pants. It's definitely in the upper rev range, naturally, where there seems to be a real increase.
Old 04-13-2005, 04:25 PM
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I'd like to see a graph of the torque the car made. I'm wondering if the car lost any torque down low due to the reduced backpressure.
Old 04-13-2005, 05:55 PM
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Anybody knows if the 4AT would benefit from this mod? Most of the power gain is really high in the RPM range.
Thanks.
Old 04-13-2005, 06:01 PM
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Originally Posted by Nemesis8
OK, they just put up their dyno...

8.7 HP increase :D

http://rx7.com/store/rx8/images/rx8supercat_factory.jpg
Interesting... I wonder how much of that is the cat and how much is the Greddy SP2. I'm going to order an SP2 this week, and once I hook up with Red Devil to hear his supercat, I'll probably have to get me one of these as well :D
Old 04-13-2005, 06:03 PM
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8.7 whp???????Wow
Old 04-13-2005, 09:24 PM
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My question for those who have installed the RP midpipe: How many of you had the hangar from the OEM cat removed and installed on your RP pipe? Those that didn't, have you had any problems? Thanks.
Old 04-13-2005, 09:47 PM
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For right know I did not have the hanger moved over the the RP mid-pipe . The only problem that I can is the mid-pipe hit hit the cross member . Next week the hanger will be added to the mid-pipe . Hope that this will help . Please pm with any other questions .
Old 04-13-2005, 10:49 PM
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finally got my rp midpipe installed with my b&b exhaust... wow... it's so loud... after installing it and reving it at the shop... EVERYONE stopped what they were doing and came to hear what the thunder was... haha it sounds really nice tho. no hangers... seemed fine w/out it.
Old 04-14-2005, 06:31 AM
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Originally Posted by ScudRunner
My question for those who have installed the RP midpipe: How many of you had the hangar from the OEM cat removed and installed on your RP pipe? Those that didn't, have you had any problems? Thanks.
Yes, I had to have the hanger installed from the OEM unit. The RP midpipe made a racket without it.

Last edited by Phil@desertboilers.com; 04-14-2005 at 06:33 AM.
Old 04-14-2005, 09:11 AM
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Don't currently have the hanger on. It hits the cross member sometimes. Will get that fixed when I get a cat back system.
Old 04-14-2005, 12:38 PM
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I used the OEM hanger. I have the titanium Trust exhaust and it sat quite low, hitting the metal...

OEM cat was totally destroyed (ceramic stuff where coming off) when it was taken off, dunno know why However I didn't notice a downslope in performance...

The RP mdpipe seems nice. Did only 20km so I can't tell yet.
I weighted it 4.8kg (10.6lbs) with courrier package, very light.
Old 04-14-2005, 12:40 PM
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Break out the Ouzo
Old 04-14-2005, 12:44 PM
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Originally Posted by Nemesis8
Break out the Ouzo
Just hearing that word makes my liver hurt... good ol' college parties :D
Old 04-14-2005, 01:09 PM
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Ouzo is great. I drink it all the time straight, or with water.
Old 04-14-2005, 05:01 PM
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Originally Posted by Nemesis8
Break out the Ouzo
Heh :D you guys know too much...
you should try 'zevania' its a drink from Cyprus 80%vol
.
.
ok, back to topic now
Kevin I saw the vids and the sound our cars make is pretty much the same, like a rattle snake!
Old 04-15-2005, 08:46 PM
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engine check light

my engine check light came on after 200 miles... is this normal? will it go away? i took off the battery and it was gone, but came back after another few hundred miles... help??
Old 04-16-2005, 01:29 PM
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Do you know anybody that could read the code for you? We need to know what threw the CEL.
Old 04-16-2005, 02:42 PM
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yeah I'd love to hear it too....
Old 04-16-2005, 10:09 PM
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read the code? hm.... if i got that code for u, is there a configuration or something i can do to get rid of the cel? sorry for not knowing much =T but i'd really appreaciate it if you can help..
Old 04-16-2005, 10:27 PM
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If you do not know anyone with a Harrison CANScan, then you could go by an AutoZone. They might be able to pull the code for you. We need the code #

I have 2500 miles with the midpipe and no CELS, so this might not be related to the midpipe.
Old 04-18-2005, 11:56 PM
  #224  
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Great Sound Clips.

Nice Growl but loud, even louder driving it.

I'd have to put on 1 resonator if not 2 and I don't know if that's worth the power gain.

I don't think your getting any more than 3.5 HP from it, then you loose more with a resonator.
Old 04-20-2005, 08:52 PM
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Originally Posted by flyboi1121
my engine check light came on after 200 miles... is this normal? will it go away? i took off the battery and it was gone, but came back after another few hundred miles... help??
did you leave the battery off for a long time or just a little while.
i left mine off overnight and CEL was gone.


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