Originally Posted by swoope
(Post 3715985)
wow,
have you really read this thread? beers :beer: Yes ofcourse I have read this thread. Why, what was wrong with what I posted? I am just posting on the HJS cats that teamrx8 was referring to, that they are also used in a cool twin turbo application. anything else? |
Originally Posted by Benjamz
(Post 3717493)
Yes ofcourse I have read this thread. Why, what was wrong with what I posted? I am just posting on the HJS cats that teamrx8 was referring to, that they are also used in a cool twin turbo application.
anything else? and the cost is the issue.. 200 > 100. not in a good way. bees :beer: |
1. sorry to post something off topic and bump this thread.
2. If it is still made, anyone can get it even if its in another country. 3. cost is not an issue to some people. When you say provide, do you mean HJS cats or Davesport cats? Can't we all just get along? |
How does this sound and now that BHR is offering it on there midpipe it must be interesting.
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Sorry to raise the dead here but what options did everyone go with to mount this up?
That BHR offering looks pretty tempting (with a resonator even) http://blackhaloracing.com/products-...nated-midpipe/ But I wanted to see what else everyone chose? Thanks for the input. |
For 450 Bucks I could make 3 of them...Just get some piping, a 40$ Vibrant performance resonator. and the Davesport CAT...It won't look as pretty, but it will do the exact same thing...
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Originally Posted by TopGear8
(Post 3773200)
For 450 Bucks I could make 3 of them...Just get some piping, a 40$ Vibrant performance resonator. and the Davesport CAT...It won't look as pretty, but it will do the exact same thing...
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Which will only effect sound...Not performance...
:dunno: |
and the fact that the Vibrant resonator can't handle the EGT's and will literally start tearing itself apart into your mufflers.
aside from that little detail... :uhh: |
Originally Posted by Agent XY
(Post 3773044)
Sorry to raise the dead here but what options did everyone go with to mount this up?
That BHR offering looks pretty tempting (with a resonator even) http://blackhaloracing.com/products-...nated-midpipe/ But I wanted to see what else everyone chose? Thanks for the input. |
Only an idiot would waste $100 to polish a rotary mid/cat pipe.
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Originally Posted by Jedi54
(Post 3773211)
and the fact that the Vibrant resonator can't handle the EGT's and will literally start tearing itself apart into your mufflers.
aside from that little detail... :uhh: I guess YMMV on this one... :boink: |
Your better off having a shop weld the cat to existing system and removing the CAT back
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Allow me to explain;
1) We tried the same Vibrant resonator that everyone else uses for their cheap midpipes. Raspy sound and poor longevity because the interior packing burns away (they were not designed for use with rotary engines). The detrimental effects when this happens have been provided by our good friend, TeamRX8 with a link. Perhaps he will be so kind as to repost it here for everyone to learn about exhaust flow and what happens when devices designed to use packing no longer have the packing to attenuate certain frequency groupings...... :dunno: 2) We then tried the Moroso 94055 Race muffler. Although it has no interior packing, it also failed because Moroso took a patented design, reverse-engineered it, and used thinner gauge steel with shitty welds. The Renesis tore those things apart in 30 days of use. 3) We were then directed by a friend to the guy who holds the patent for the muffler/resonator and the rest of the story is posted on our website. As for the DaveSport cats costing "only $100"; that is not what they are priced at on Dave's website. I buy them 6-8 at a time for more than that and at a discount that hardly makes offering them on our midpipes worth the hassle for me. |
It's cheap, but you get what you pay for. 100 CPI is only part of the equation. The OD is considerably smaller than the OE cat. So it gains some flow area with 100 cpi but also gives some up with a lower total cross sectional area. I've never seen any temp data on it, but I suspect it can't take the heat long term.
The stainless mesh packing in my Coast Fab mufflers will never wear out. Ever. |
Originally Posted by Charles R. Hill
(Post 3774362)
As for the DaveSport cats costing "only $100"; that is not what they are priced at on Dave's website. I buy them 6-8 at a time for more than that and at a discount that hardly makes offering them on our midpipes worth the hassle for me.
I apologize I was incorrect on the price of the davesport cat. I think I paid about $120 plus shipping maybe $135 but that was over a year ago. Website price is about $138 (plus shipping) now. FTR I think charging $175 for the cat is fair. You do need to make a profit to cover the extra work required for the install and for the buyer it would cost more to have it welded in. Win win for everyone. |
Originally Posted by Highway8
(Post 3775350)
FTR I think charging $175 for the cat is fair. You do need to make a profit to cover the extra work required for the install and for the buyer it would cost more to have it welded in. Win win for everyone.
The reason I wanted the actual cost of the cat to be clarified is because people will always contact me bitching about the price we charge for stuff, and their complaints are often based on erroneous information. Then, we retailers get accused of charging too much. |
Originally Posted by TeamRX8
(Post 3775337)
It's cheap, but you get what you pay for. 100 CPI is only part of the equation. The OD is considerably smaller than the OE cat. So it gains some flow area with 100 cpi but also gives some up with a lower total cross sectional area. I've never seen any temp data on it, but I suspect it can't take the heat long term.
Of course, serious trackers can always use the HJS cat. |
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I am always flattered by your obsession, Team.
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:beer: ahh...
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Originally Posted by Charles R. Hill
(Post 3776004)
I am always flattered by your obsession, Team.
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It seems that this is the only option to replacing the OEM cat. The RP super cats are dying within 10k.
What kind of longevity are you seeing with these cat's? Also it seems some people are getting P0420 codes is this true or is that because of other problems? I was thinking of getting the BHR midpipe with the davesport cat to replace my bad OEM cat. At least with this setup the cat is cheap and can be cut out and replaced when it goes bad. $625 with the option to replace the cat for $138 plus welding seems better then spending $1100 for the OEM that seems to die on me every 40k. Unless it just comes out to a wash with lower longevity. edit i also just found the rx7store replacement that apparently uses the davesport, only $345. apprently swoope has had this one on his car since 2006 with no problems. That might be my answer. |
it's not the only option, there is the Magnaflow option (new and unknown) or the HKS racing cat option ($$$ but proven and ultimate flow potential)
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If I remember correctly, the Magnaflow isn't a 100cpi cat and it can't handle the temps of the rotary. Your HKS may be a might fine and long lasting cat, but the price is just too high for most to justify.
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