Good high-flow cats?
08-02-06, 03:52 PM
#3
https://www.rx7club.com/showthread.p...&highlight=cat
+1 for Bonez, and Rotary Performance also sells them.
+1 for Bonez, and Rotary Performance also sells them.
08-02-06, 04:28 PM
#4
Originally Posted by Sgtblue
https://www.rx7club.com/showthread.p...&highlight=cat
+1 for Bonez, and Rotary Performance also sells them.
+1 for Bonez, and Rotary Performance also sells them.
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08-02-06, 07:50 PM
#8
Originally Posted by Sgtblue
Thanks. I thought I'd read that before but wasn't sure.
08-02-06, 07:53 PM
#9
http://rx7.com/contact.html
This is the one I have bookmarked.
This is the one I have bookmarked.
08-02-06, 09:05 PM
#12
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How much more power would a reonated midpide give over a good high-flow cat? I don't need to pass emissions in Florida, but I was just thinking about leaving the car close to stock and not getting excess fumes, backfiring, etc. If a midpipe is much better though, I'll reconsider!
08-02-06, 09:14 PM
#13
Originally Posted by 3GRX7
How much more power would a reonated midpide give over a good high-flow cat? I don't need to pass emissions in Florida, but I was just thinking about leaving the car close to stock and not getting excess fumes, backfiring, etc. If a midpipe is much better though, I'll reconsider!
08-03-06, 08:37 AM
#15
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Originally Posted by Mahjik
A resonator doesn't help with those problems. A resonator just helps with muffling the sound a little more.
Thanks Mahjik...I'm aware that the resonator doesn't do much, my question was basically trying to figure out how much more power a midpipe can provide/allow over a high flow cat?
I currently have a midpipe in my garage from my previous FD and now that I have a totally stock FD, I'm questioning whether or not to put the midpipe or a high flow cat. If I can get a great deal more performance from the midpipe, I'll stick with it. If not, I may just buy a high flow cat & sell the midpipe.
Thanks,
Ian
08-03-06, 02:03 PM
#16
Unfortunately it's just not that simple. You either:
a) don't want to deal with fumes and loudness
b) want more power
There's not really a middle ground. The closest middle ground would be a metallic substrate cat, but it's longevity on a rotary is in question.
As for the differences, there's never been a good test between the two; and the test results can be different depending on the type of cat used as well (so no one test would be conclusive for all hi-flo cats). There was a test done several years ago but the differences were such that it made it extremely hard to believe (and no test has really been done since).
a) don't want to deal with fumes and loudness
b) want more power
There's not really a middle ground. The closest middle ground would be a metallic substrate cat, but it's longevity on a rotary is in question.
As for the differences, there's never been a good test between the two; and the test results can be different depending on the type of cat used as well (so no one test would be conclusive for all hi-flo cats). There was a test done several years ago but the differences were such that it made it extremely hard to believe (and no test has really been done since).
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