Rotary Performance Super CAT Midpipe
#101
X-Sapper
Join Date: Jan 2004
Location: where angle's fear to tread
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sweet sounding exhaust set up..i got to RB exhaust....gald to hear that teh RP high-flow cat doesn't make her too loud...can't wait to see teh dyno numbers (sae corrected and not):D
#102
yeah, this sounds great. I'm planning to ship such a High Flow Cat to germany, but I'm still in license problems. If they'll me allow to drive this thing, i'll order it .
What you think ? Does it fit my Fox Catback exhaust ? ( Sound Video )
What you think ? Does it fit my Fox Catback exhaust ? ( Sound Video )
#103
Originally Posted by army_rx8
sweet sounding exhaust set up..i got to RB exhaust....gald to hear that teh RP high-flow cat doesn't make her too loud...can't wait to see teh dyno numbers (sae corrected and not):D
#104
Originally Posted by thuneon
yeah, this sounds great. I'm planning to ship such a High Flow Cat to germany, but I'm still in license problems. If they'll me allow to drive this thing, i'll order it .
What you think ? Does it fit my Fox Catback exhaust ? ( Sound Video )
What you think ? Does it fit my Fox Catback exhaust ? ( Sound Video )
#106
One ball, corner pocket
Join Date: Apr 2004
Location: Fontucky, right next to Patriotville
Posts: 2,053
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It sounds like the biggest difference in sound is the rumble at idle. Nice. Dont really notice a significant change in accelaration note..but maybe thats just me.
#108
Originally Posted by kwescott
It sounds like the biggest difference in sound is the rumble at idle. Nice. Dont really notice a significant change in accelaration note..but maybe thats just me.
#110
Originally Posted by thuneon
How much Cells this CAT have ? 200 ? of 400 ?
THUNEON
THUNEON
https://www.rx8club.com/showpost.php...5&postcount=19
#113
FI by Pettit-BHR-Cobb AP
iTrader: (3)
I just had mine installed with my existing RB Cat Back. The rumble / growl at idle is now a little more pronounced but there is a substantial difference in the sound level upon rapid excelleration.
The seat of my pants says that I also have a performance boost.
The seat of my pants says that I also have a performance boost.
#116
I'm back, but we think the data is not quite right it seems. I need to converse with "dannobre" and "dmp" about this. My car dynoed about the same as two weeks ago, but renwar1's car dynoed lower. Remember that renwar1 had the 206 HP uncorrected car, or 197.76 SAE Corrected on 2/26. I had 180.5 SAE corrected.
Why would I stay the same while he dropped, when he did nothing to his car and I added the midpipe? Confusing isn't it?
I dynoed 181.27 SAE corrected. If you look at my graph, the first three runs were from two weeks ago, and the last three were from today and with the midpipe installed. The only other mod I have done in those two weeks were the tires. I went from the stock Potenzas to the Pirelli 245/40R18's. They are about .3 inched smaller in diameter. I don't see how that could effect things.
I find it hard to beleive that I only gained .77 rwhp But, think of this, what if I actually gained what renwar1 lost? If he lost numbers and I stayed the same, maybe I actually picked up 9 RWHP. That was about his drop I think. Why didn't I drop also? Was the dynojet on the blink maybe? I can tell you that my butt dyno says I got more than .77
Go figure this one out...
Why would I stay the same while he dropped, when he did nothing to his car and I added the midpipe? Confusing isn't it?
I dynoed 181.27 SAE corrected. If you look at my graph, the first three runs were from two weeks ago, and the last three were from today and with the midpipe installed. The only other mod I have done in those two weeks were the tires. I went from the stock Potenzas to the Pirelli 245/40R18's. They are about .3 inched smaller in diameter. I don't see how that could effect things.
I find it hard to beleive that I only gained .77 rwhp But, think of this, what if I actually gained what renwar1 lost? If he lost numbers and I stayed the same, maybe I actually picked up 9 RWHP. That was about his drop I think. Why didn't I drop also? Was the dynojet on the blink maybe? I can tell you that my butt dyno says I got more than .77
Go figure this one out...
#117
Kaiten Kenbu Rokuren
Originally Posted by Nemesis8
I'm back, but we think the data is not quite right it seems. I need to converse with "dannobre" and "dmp" about this. My car dynoed about the same as two weeks ago, but renwar1's car dynoed lower. Remember that renwar1 had the 206 HP uncorrected car, or 197.76 SAE Corrected on 2/26. I had 180.5 SAE corrected.
Why would I stay the same while he dropped, when he did nothing to his car and I added the midpipe? Confusing isn't it?
I dynoed 181.27 SAE corrected. If you look at my graph, the first three runs were from two weeks ago, and the last three were from today and with the midpipe installed. The only other mod I have done in those two weeks were the tires. I went from the stock Potenzas to the Pirelli 245/40R18's. They are about .3 inched smaller in diameter. I don't see how that could effect things.
I find it hard to beleive that I only gained .77 rwhp But, think of this, what if I actually gained what renwar1 lost? If he lost numbers and I stayed the same, maybe I actually picked up 9 RWHP. That was about his drop I think. Why didn't I drop also? Was the dynojet on the blink maybe? I can tell you that my butt dyno says I got more than .77
Go figure this one out...
Why would I stay the same while he dropped, when he did nothing to his car and I added the midpipe? Confusing isn't it?
I dynoed 181.27 SAE corrected. If you look at my graph, the first three runs were from two weeks ago, and the last three were from today and with the midpipe installed. The only other mod I have done in those two weeks were the tires. I went from the stock Potenzas to the Pirelli 245/40R18's. They are about .3 inched smaller in diameter. I don't see how that could effect things.
I find it hard to beleive that I only gained .77 rwhp But, think of this, what if I actually gained what renwar1 lost? If he lost numbers and I stayed the same, maybe I actually picked up 9 RWHP. That was about his drop I think. Why didn't I drop also? Was the dynojet on the blink maybe? I can tell you that my butt dyno says I got more than .77
Go figure this one out...
Weather conditions might have been different, and depending on the weight of the tires, they might have altered the dyno numbers too as they are part of the drivetrain. Experts will probably be able to expand/correct what I have mentioned, but I hope this might help a little bit.
#118
RX8 and a Truk....
Originally Posted by Aoshi Shinomori
Weather conditions might have been different, and depending on the weight of the tires, they might have altered the dyno numbers too as they are part of the drivetrain. Experts will probably be able to expand/correct what I have mentioned, but I hope this might help a little bit.
Corrected values aren't changed by weather - as they are 'corrected to' a standard weather/atmosphere condition.
#119
Kaiten Kenbu Rokuren
Originally Posted by dmp
Corrected values aren't changed by weather - as they are 'corrected to' a standard weather/atmosphere condition.
#121
I just got off the phone with Chris at RP. In fact he called me to survey my grin factor with the midpipe. He said I should see 8 RWHP with this midpipe. He said that I should have tested the midpipe on the SAME day back two weeks ago. Too bad I didn't. So the theory about me gaining what renwar1 lost is right after all. Someone needs to dyno the change on the same day.
I gave him a thumbs up review - and said that I do not believe my results from today. He agreed with me. He has one on his test mule 8 down at Garland also. He is looking for someone to put it on a Greddy Turbo.
Their old Catalytic material on their 3rd Gen twin turbo midpipe showed a 20 RWHP increase, and this new Catalytic material showed a 34 RWHP increase on the same 3rd gen! So, I definitely have the right midpipe.
I gave him a thumbs up review - and said that I do not believe my results from today. He agreed with me. He has one on his test mule 8 down at Garland also. He is looking for someone to put it on a Greddy Turbo.
Their old Catalytic material on their 3rd Gen twin turbo midpipe showed a 20 RWHP increase, and this new Catalytic material showed a 34 RWHP increase on the same 3rd gen! So, I definitely have the right midpipe.
Last edited by Nemesis8; 03-11-2005 at 06:13 PM.
#122
Kaiten Kenbu Rokuren
Originally Posted by Nemesis8
I just got off the phone with Chris at RP. In fact he called me to survey my grin factor with the midpipe. He said I should see 8 RWHP with this midpipe. He said that I should have tested the midpipe on the SAME day back two weeks ago. Too bad I didn't.
I gave him a thumbs up review - and said that I do not believe my results from today. He agreed with me. He has one on his test mule 8 down at Garland also. He is looking for someone to put it on a Greddy Turbo.
Their old Catalytic material on their 3rd Gen twin turbo midpipe showed a 20 RWHP increase, and this new Catalytic material on our 8 midpipes showed a 34 RWHP increase! So, I definitely have the right midpipe.
I gave him a thumbs up review - and said that I do not believe my results from today. He agreed with me. He has one on his test mule 8 down at Garland also. He is looking for someone to put it on a Greddy Turbo.
Their old Catalytic material on their 3rd Gen twin turbo midpipe showed a 20 RWHP increase, and this new Catalytic material on our 8 midpipes showed a 34 RWHP increase! So, I definitely have the right midpipe.
#123
Originally Posted by Aoshi Shinomori
34 RWHP? Is there FI in there somewhere? I think I missed something.
Sorry if I confused you :o
Last edited by Nemesis8; 03-11-2005 at 06:15 PM.
#124
Ex- member.
Originally Posted by Nemesis8
He is looking for someone to put it on a Greddy Turbo.
I need to research how to download and tune maps to the emanage. Something about a cable and software, but I would have to erase the stock emanage map (password protected). Since the stock map works great for me, I'll be waiting for somebody else to try it first.
#125
You might try calling Chris @ Rotary Performance. He said he has a Greddy Turbo sitting there that he is going to put on his test mule 8, that has the SuperCAT midpipe on it, once all the N/A products are completely done and tested. He is currently running an E-Manage on it also, so he will most likely be able to tune yours one day.