Racingbeat muffler vs. other aftermarket
11-10-05, 12:24 AM
#26
FD > FB > FC
the racing beat muffler is NOT the highest flowing muffler out there, however it is a good compramise in terms of noise level and flow.
Id much rather use a Magnaflow catback, rather than a racing beat muffler, its just too restrictive for my tastes
Id much rather use a Magnaflow catback, rather than a racing beat muffler, its just too restrictive for my tastes
11-10-05, 01:31 AM
#27
FB+FC=F-ME
The regular,skinny version....probably.
The 2.5" inlet streetport version...just cant see it being restrictive on an N/A engine,especially after what Ive put mine through with forced induction.
The 2.5" inlet streetport version...just cant see it being restrictive on an N/A engine,especially after what Ive put mine through with forced induction.
11-10-05, 07:31 AM
#29
love the braaaap
As soon as I saw that pic of the inside of a RB muffler I lost a certain amount of respect for them. Agreed, they are quiet, but I don't think the muffler is up to the task of flowing enough for most setups. The muffler and their pipe sizes are what hold the RB system back.
I would personally go with a magnaflow muffler. I have used one in the past and it is the quietest straight through style muffler you can get. My 7 isn't running right now, but I swapped the one from my 7 to my 97 thunderbird and the thunderbird is damn near stock sounding. Its almost rediculous how quiet that thing is.
11-10-05, 11:32 AM
#30
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While the RB may not look like a good design, there are other factors. One, we agree that it is a quiet. On our race car with RB header with dual outlet, twin straight pipes to RB muffler, not loud at all, at full honk at 8k rpm. But the other thing is the design is a little restrictive to help with backpressure. A straight through muffler will be louder, and not give any back pressure, which helps at low to mid rpms to build some torque. Previously had a dynomax muffler on, much more straight through, loud as hell, and would bog off bottom. With RB muffler, quieter, no more getting kicked out of events for db infractions lol, and ability to not totally fall on its face below 2k-2.5k as before. This is in an autocross application BTW.
Cheers,
Travis
Cheers,
Travis
11-10-05, 11:56 AM
#31
Originally Posted by Hyper4mance2k
11-10-05, 01:30 PM
#32
Originally Posted by Onlyonthurs
Ok im going to thread hijack real quick because i don't think there should be anothter muffler thread.....(sorry thread starter)....I just bought a magnaflow muffler and i have a stock exhaust set up.....i'll be getting a header later on...but for now my stock muffler is lookin pretty sad so i bought this magnaflow to spice up her look a little bit.......i was just wondering since the rest of my system is stock except for the soon to be installed new muffler...will it be that dramatically louder?? I just don't want a headache driving down the street...i wanted a nice low tone............
this is the one i got
this is the one i got
OH man i just got my magnaflow muffler yesterday and i had it installed this morning...holy crap it sounds NICE!!!!!!!!!! and i actually feel a differeance in pick up...NOT A HUGE DIFFERANCE...but definetly a little!
11-10-05, 11:02 PM
#39
FB+FC=F-ME
RB or not,that pic is not a current design......
All the RB mufflers Ive had were straight thru design.Ive heard the possibilty that older RB mufflers were baffled.I think they've been making them since the 80's after all.
I started running them around 97' and still to this day.My old 84 12A RB muffler on the n/a engines and my newer SP RB muffler for the turbo were/are both straight thru design with no baffles,just a midway split to dual tube.I know this for a fact because on both versions I hacked off the tips and welded on some nicer,bigger stainless tips.In addition to altering the inlet of the SP muffler to accept a 3: inlet.
The only difference between the 2 is the SP version has larger ID tubes and a larger 2.5" inlet.The fork where the single inlet splits to a dual outlet doesnt change the fact that its still a straight thru,non baffled muffler, and the fact that its quiet doesnt automatically make it restrictive.
All the RB mufflers Ive had were straight thru design.Ive heard the possibilty that older RB mufflers were baffled.I think they've been making them since the 80's after all.
I started running them around 97' and still to this day.My old 84 12A RB muffler on the n/a engines and my newer SP RB muffler for the turbo were/are both straight thru design with no baffles,just a midway split to dual tube.I know this for a fact because on both versions I hacked off the tips and welded on some nicer,bigger stainless tips.In addition to altering the inlet of the SP muffler to accept a 3: inlet.
The only difference between the 2 is the SP version has larger ID tubes and a larger 2.5" inlet.The fork where the single inlet splits to a dual outlet doesnt change the fact that its still a straight thru,non baffled muffler, and the fact that its quiet doesnt automatically make it restrictive.
11-11-05, 02:28 AM
#40
I had the Racing Beat streetport muffler on my 1st gen for a while. I don't care who says or claims what, that picture above is not the style internally of the Racing Beat muffler I had. Mine was more or less straight through and worked great. Wonderful muffler. That may only apply to the streetport muffler but that just means that's the one to get. To make a blanket statement that Racing Beat mufflers suck is spoken like a true inexperienced idiot. You'd better quantify that statement with exact part numbers and in which applications the statement is referring to. Certainly not every muffler will work good in every situation yet they might excell in some. The same can be said about any muffler companies product though whether it's Magnaflow, Dynomax, Borla, etc.
I do have to ask all of the people who are fond of quoting flow here. Have you personally tested flow on all of these mufflers or are you going by looks and guessing? I don't need a response to know what the answer probably is. I can tell you from owning a flowbench that air does not always do what you think it will based on what something looks like. It's really surprising sometimes. Other times it works just like you thought it would. The point is that if you didn't test it, you guessed and you might not guess right. I haven't seen a single person on this forum yet port an intake manifold properly. Not one! Why? They are guessing and they are guessing wrong. They concentrate on one small aspect when they should really look at the big picture. Sometimes it's obvious. Other times it isn't. Yet other times what appears to be obvious is completely backwards from what it seems!
Here's the biggest question of all though. If muffler A flows a certain amount of air and muffler B flows twice as much air, people will automatically think that muffler B must be the better one to use and therefore will make more power. What a stupid way to make a buying decision. However what if BOTH mufflers A and B outflow the requirements of the engine? Suddenly flow differences between them were irrelevant and there is no advantage. No every little bit does not count if it's outside of your usable range. The Racing Beat mufflers flow plenty well for most people out there.
I do have to ask all of the people who are fond of quoting flow here. Have you personally tested flow on all of these mufflers or are you going by looks and guessing? I don't need a response to know what the answer probably is. I can tell you from owning a flowbench that air does not always do what you think it will based on what something looks like. It's really surprising sometimes. Other times it works just like you thought it would. The point is that if you didn't test it, you guessed and you might not guess right. I haven't seen a single person on this forum yet port an intake manifold properly. Not one! Why? They are guessing and they are guessing wrong. They concentrate on one small aspect when they should really look at the big picture. Sometimes it's obvious. Other times it isn't. Yet other times what appears to be obvious is completely backwards from what it seems!
Here's the biggest question of all though. If muffler A flows a certain amount of air and muffler B flows twice as much air, people will automatically think that muffler B must be the better one to use and therefore will make more power. What a stupid way to make a buying decision. However what if BOTH mufflers A and B outflow the requirements of the engine? Suddenly flow differences between them were irrelevant and there is no advantage. No every little bit does not count if it's outside of your usable range. The Racing Beat mufflers flow plenty well for most people out there.
11-11-05, 02:56 AM
#41
Originally Posted by steve84GS TII
RB or not,that pic is not a current design......
All the RB mufflers Ive had were straight thru design.Ive heard the possibilty that older RB mufflers were baffled.I think they've been making them since the 80's after all.
I started running them around 97' and still to this day.My old 84 12A RB muffler on the n/a engines and my newer SP RB muffler for the turbo were/are both straight thru design with no baffles,just a midway split to dual tube.I know this for a fact because on both versions I hacked off the tips and welded on some nicer,bigger stainless tips.In addition to altering the inlet of the SP muffler to accept a 3: inlet.
The only difference between the 2 is the SP version has larger ID tubes and a larger 2.5" inlet.The fork where the single inlet splits to a dual outlet doesnt change the fact that its still a straight thru,non baffled muffler, and the fact that its quiet doesnt automatically make it restrictive.
All the RB mufflers Ive had were straight thru design.Ive heard the possibilty that older RB mufflers were baffled.I think they've been making them since the 80's after all.
I started running them around 97' and still to this day.My old 84 12A RB muffler on the n/a engines and my newer SP RB muffler for the turbo were/are both straight thru design with no baffles,just a midway split to dual tube.I know this for a fact because on both versions I hacked off the tips and welded on some nicer,bigger stainless tips.In addition to altering the inlet of the SP muffler to accept a 3: inlet.
The only difference between the 2 is the SP version has larger ID tubes and a larger 2.5" inlet.The fork where the single inlet splits to a dual outlet doesnt change the fact that its still a straight thru,non baffled muffler, and the fact that its quiet doesnt automatically make it restrictive.
11-11-05, 07:29 PM
#42
FB+FC=F-ME
Hell,I just looked through mine......daylight and everything,its clean and open as can be.
Thats not so easy to do with the long inlet pipe intact,but I chopped it off right away since I had to fab a custom exhaust anyways.
I have no proof positive that the RB isnt restrictive,but backpressure is the bane of turbo engines and Ive racked up tens of thousands of miles on my RB muffler and its never affected boost levels or lag compared to when I bolt on my 3" straight thru RB TII presilencer that I use for a "loud" muffler.Performance is the same,although MUCH louder.
Personally,I think there are 2 things that make the RB so quiet when others arent....
First is the size of the muffler.More packing means more muffling and the RB is big around as the the stocker.
Second is build.The RB has no rolled seams or tack welds.Everything is solid,fully welded and thick.No resonance or buzz created from the mufflers body itself, as the pulses and engine vibration beat up on the muffler.They are the beef,which is also responsible for their one faut,weight....which is more than made up for in increased flow over stock and longevity.
Thats not so easy to do with the long inlet pipe intact,but I chopped it off right away since I had to fab a custom exhaust anyways.
I have no proof positive that the RB isnt restrictive,but backpressure is the bane of turbo engines and Ive racked up tens of thousands of miles on my RB muffler and its never affected boost levels or lag compared to when I bolt on my 3" straight thru RB TII presilencer that I use for a "loud" muffler.Performance is the same,although MUCH louder.
Personally,I think there are 2 things that make the RB so quiet when others arent....
First is the size of the muffler.More packing means more muffling and the RB is big around as the the stocker.
Second is build.The RB has no rolled seams or tack welds.Everything is solid,fully welded and thick.No resonance or buzz created from the mufflers body itself, as the pulses and engine vibration beat up on the muffler.They are the beef,which is also responsible for their one faut,weight....which is more than made up for in increased flow over stock and longevity.
11-11-05, 10:47 PM
#43
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Excellent mufflers made in Australia are called Rotaflo. These mufflers have been designed built and tested for rotaries. Even with shipping the prices would still be fairly good for the cats in the U.S.
Example
RFP 300 - This is the muffler for serious on-track performance. Race built and proven. The RFP 300 is the muffler for unlimited rotary performance. Tough and durable, featuring a fully re-packable design, packed with stainless steel mesh and high density glass packing. RRP: $395.00 AUD Now available in Fully welded stainless style
• Hand built
• 1.6mm Mild steel construction
• Deep sounding glass pack
• Limited sound control
• Re-packable
• Size: 152mm round x 500mm
• in length
Example
RFP 300 - This is the muffler for serious on-track performance. Race built and proven. The RFP 300 is the muffler for unlimited rotary performance. Tough and durable, featuring a fully re-packable design, packed with stainless steel mesh and high density glass packing. RRP: $395.00 AUD Now available in Fully welded stainless style
• Hand built
• 1.6mm Mild steel construction
• Deep sounding glass pack
• Limited sound control
• Re-packable
• Size: 152mm round x 500mm
• in length
11-20-05, 12:01 PM
#46
^^^ you right on the money......1983 LE wheels that i painted and polished to no end it took forever to gt them that shiny!!)......The tires i am using are Falken Zien 205/60/14
11-20-05, 12:01 PM
#47
My wife bought me 2 RX-7s
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I've got a Magnaflow and it has really nice tone but a loud note. With a RB presilencer and a standard bottle silencer, the noise level is just barely on the legal side at 86 dB measured 12 ft away and at 3000rpm.
http://members.shaw.ca/deuteronomy/DSCF0105.WAV
That's before I installed the extra bottle silencer.
http://members.shaw.ca/deuteronomy/DSCF0105.WAV
That's before I installed the extra bottle silencer.
11-20-05, 01:57 PM
#48
ok ive been hearing good for rb and magnaflow.. rb is like-stock but more free-flowing and last much longer.. magnaflow seems to be the same (a little louder?) anyways i also wanted to compare with rx7.com's rp perf. exhaust and bonez street exhaust W/cats! http://rx7.com/store/rx7/saexhaust.html. of course i want to also stay street legal in CA. thanks for any response!
here is a setup which the sound i love.. from a first gen although the engine is from a '91 TT with custom FMI. taken from the bay area rx7 club (rx7.org) page: http://www.rx7.org/jes/rx7.html
SOUND BITES: http://www.rx7.org/jes/ColdStart.mp3, http://www.rx7.org/jes/RevIt.mp3
Exhaust:
80mm Racing Beat DP
80mm RB presilencer (track) or Random Technology CATs
3" mandrell pipe to Borla muffler
NOTE: for reference adjust your volume to 101 db on the low idle! Then you will hear 111 db (ouch) during the revs. This is too loud for some race tracks.
here is a setup which the sound i love.. from a first gen although the engine is from a '91 TT with custom FMI. taken from the bay area rx7 club (rx7.org) page: http://www.rx7.org/jes/rx7.html
SOUND BITES: http://www.rx7.org/jes/ColdStart.mp3, http://www.rx7.org/jes/RevIt.mp3
Exhaust:
80mm Racing Beat DP
80mm RB presilencer (track) or Random Technology CATs
3" mandrell pipe to Borla muffler
NOTE: for reference adjust your volume to 101 db on the low idle! Then you will hear 111 db (ouch) during the revs. This is too loud for some race tracks.
11-20-05, 11:06 PM
#50
On my 48 IDA fed 13B streetport, I'm running the RB R/R header, dual 2.25 pipe with dual 18" long x 4" round magnaflow mufflers, merging to 2.5" out the back with a Thermal muffler. It can be really loud a WOT and ******' quiet as **** in 4th gear at 2000 rpm. It drones a little too much for my liking. Most likely to the rear Thermal probably being blown after 2+ years. Probably going Rotaflo in back. A bit more $$ but seems to be worth it as many 10-sec. Aussie street cars running them with a really nice tone.