i'm thinking of puting a flowmaster super 40/or delta flow muffler on my 84 gsl-se..staright pipe from my headers..how do you guys think it will sound..i think loud and rounchy..any advise???i want a reasonable loud crazy sound but nothing like a tin can!!??

 

Flowmasters don't belong on rotary engines...


-Ted

 

i have one on my car. not really all toooooooooooooo loud. doesnt sound bad. ted is right though. . . they arent the best for performance on these cars. . . but i do like the sound.

 

why are flowmasters not for rotarys???????????????explain

 

Because Flowmaster says they are not for rotaries.

The intense rotary engine exhaust blows out the spot welds on the baffles. If you look on the Flowmaster website or in their catalog, you will see no mufflers listed for a Mazda RX-7 of any type.
http://www.flowmastermufflers.com

 

I talked to some flowmaster guys at their booth at the PRI show. They said exactly what Evil typed. I said "Thats it?"
What muffler doesn't have problems with rotary heat besides the lava rock comp one? They will last a long time, I had one on an ITA car for a couple seasons and it wasn't down on power. It was loud, but not too loud and it sounded a lot better than the lava rock muffler for street rpm's.

 

so what kind of muffler do you guys advise????i want a mid sounding,nuts , crazy sounding muffler that will not drown out my gilmore drive,and let everyone know a rotary is coming!!

 

Oh gawd, the guy is from Hawaii...
How embarassing...
*sigh*


-Ted

 

and your point????????????

 

The Racing Beat "Street Port" full exhaust system is pretty good for the 1Gen RX-7. However, if you just want a noisemaker, I guess you can replace your stock muffler with a universal Apexi N1.

One of your shift-mad-quick-yo drifting buddies, Ted?

 

damn!that apexi is to darn expensive!!!!i rather run it uncaped and pay tickets!!!!***

 

what about those " spintech " muffler anybody heard anything about it ?

 

i heard of it but don't know what sound it will make???
yo dudes...what about a glasspack or cherry bomb????

 

Dude, you sound like you're still in high school???

"Flowmastahs" is what almost everyone runs down here on almost anything else.
Flowmastahs on V8's.
Flowmastahs on Toy trucks.
You get the idea.
It's cause that's what the "big" muffler shops like to push to their customers.

If you want to just want to annoy the **** out of everyone and run a loud exhaust, you deserve to get tickets and thrown in jail.
I'm one of those people trying to sleep after working 16 hours...


-Ted

 

Rotaflo from Oz is a good one....or that aforementioned RB setups. NO MASTERFLOWS please...brah.

 

We had a Spintech on one of the race cars for a while. It was one of those "it was laying around the shop" things and it was supposed to be a good muffler. Well, it was quiet enough, we were getting 93 db at SCCA events. We put a magnahelic gauge on the exhaust and found out it was like having a banana shoved up the tail pipe. It would bury a 15" h2o gauge by about 4000 rpm. That means it costs HP. I ended up making a muffler using lava rock and a perferated pipe that got us under the 103db limit and has no back pressure.

 

Has anyone ever try one of these? http://www.moroso.com/catalog/catego...?CatCode=35001 As far as from my experience the only thing that works for me is a Borla XR-1 muffler only ones I would reccommend.

 

yo 13btnos...do you use the oval or round xr-1???how would it sound in my application???strait pipe 3in...??no cat or resonator.

 

john this is wilson with the 2nd gen u are working on


damn it i was thinking about using a spintech muffler, guess i have to go back to magnaflow / borla

 

16in oval but it's going to be loud I don't street drive my cars too often it's more that I need to quite it down for the track. But they are great mufflers and never burn out. If you are street driving it you might want to run a resonator or high flow cat. converter or even run two mufflers, one after another. I've ran two mufflers before, one after the other, and it sounds really good.

 

if you could compare the sound to something..what would it be like??

 

Flowmasters.... are a really poor muffler over a wide range of frequencies. In theory it looks like a neat idea; in reality it doesn't work well for flow enhancement or sound control [for any engine]. More overhyped junk.

 

Any body got the website for lava rock mufflers ?

 

Mazdaspeed sells them for big$$, around $400 IIRC. Most people just make their own like I did.

 

i think i gonna go with a cherry bomb/glass pack before the borla xr1...****should take care my needs