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Thread: Muffler suggestions

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    Post Muffler suggestions

    Looking for a performance muffler from flow master for a 1973 240z. Im looking for a throaty deeper sound and added power any suggestions? However I do not want to sound like a cheap ricer either. Please put forth your ideas!

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    Supporting Member Diseazd's Avatar
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    I like Borla mufflers..........not too loud, but a nice throaty sound.
    http://www.flickr.com/photos/1404980...7600346077563/
    ______________________________________________
    http://www.flickr.com/photos/1404980...7603350695459/

    70, 71, 2 72's, and a 73 240z....
    90 300zx and a 1996 Acura NSX.....but who's counting?

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    Quote Originally Posted by Diseazd View Post
    I like Borla mufflers..........not too loud, but a nice throaty sound.
    I have a 2 1/2" Borla exhaust system for sale in the classifieds. I'll give you a good deal on the muffler and any of the other stainless steel parts.

    Fixitman

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    Registered User MotoManMike's Avatar
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    I've been really happy with the magnaflow's i've used on this last exahaust i've got. Its 2 1/2 inch all the way back with headers and a straight through magnaflow, it sounds fantastic. They come in chrome too.

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    Registered User LeonV's Avatar
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    I don't associate Flowmaster with performance. Borla is nice, their XR-1 is a great performance muffler.
    2/74 260Z

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    Registered User siteunseen's Avatar
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    Magnaflow and Flowmaster are the same?

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    Registered User surfer.tech's Avatar
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    Fujitsubo Legalis-R on mine. The sound is amazing.
    HLS30137283

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    Administrator bpilati's Avatar
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    Quote Originally Posted by fixitman View Post
    I have a 2 1/2" Borla exhaust system for sale in the classifieds. I'll give you a good deal on the muffler and any of the other stainless steel parts.

    Fixitman
    Why aren't you using it?
    Bryan Pilati
    1971 Datsun 240Z (8/71; 920 paint)
    IZCC #583; TZCC #16; CZC #110
    I'm never serious unless I should be.

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    Administrator bpilati's Avatar
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    Quote Originally Posted by surfer.tech View Post
    Fujitsubo Legalis-R on mine. The sound is amazing.
    Where did you get it?
    Bryan Pilati
    1971 Datsun 240Z (8/71; 920 paint)
    IZCC #583; TZCC #16; CZC #110
    I'm never serious unless I should be.

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    Quote Originally Posted by bpilati View Post
    Why aren't you using it?
    With my carb setup, I decided to use a 2 1/4" dia. custom-made Borla system. The 2 1/2" dia. muffler is identical in size to the 2 1/4". It fits well. You can see a few photos in the Members Gallery under Fixitman. A $100.00 for a muffler and tailpipe that will last over 10-15 years is a terrific deal. You just need to have the tailpipe welded on or one end flared.

    If you are interested in a full S.S. system, I can put you in touch with MSA's supplier to have the pipes bent.

    Fixitman


    If you would like a quieter exhaust system, you could even add a Borla resonator.

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    Im going for a deeper sound yet not ricey thanks for the advice ill keep checking and looking into things

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    Registered User surfer.tech's Avatar
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    Quote Originally Posted by bpilati View Post
    Where did you get it?
    Custom order from Fujitsubo Japan. There's 3 of us on here with the same exhaust, but we all run different headers.
    HLS30137283

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    I want to keep the original headers for now (money wise) and just get the best exhaust i can find

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    Administrator bpilati's Avatar
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    Quote Originally Posted by fixitman View Post
    With my carb setup, I decided to use a 2 1/4" dia. custom-made Borla system. The 2 1/2" dia. muffler is identical in size to the 2 1/4". It fits well. You can see a few photos in the Members Gallery under Fixitman. A $100.00 for a muffler and tailpipe that will last over 10-15 years is a terrific deal. You just need to have the tailpipe welded on or one end flared.

    If you are interested in a full S.S. system, I can put you in touch with MSA's supplier to have the pipes bent.

    Fixitman


    If you would like a quieter exhaust system, you could even add a Borla resonator.
    I'm going to for 2-1/4" too, I hear it's gives you better mid-range power. 2-1/2" is good for racing and lots of high revs. That's what I hear.
    Bryan Pilati
    1971 Datsun 240Z (8/71; 920 paint)
    IZCC #583; TZCC #16; CZC #110
    I'm never serious unless I should be.

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    Administrator bpilati's Avatar
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    Quote Originally Posted by surfer.tech View Post
    Custom order from Fujitsubo Japan. There's 3 of us on here with the same exhaust, but we all run different headers.
    For now I'm staying with the original manifold, which actually has been given a pretty good rating for a casted exhaust manifold.
    Bryan Pilati
    1971 Datsun 240Z (8/71; 920 paint)
    IZCC #583; TZCC #16; CZC #110
    I'm never serious unless I should be.

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    Registered User LeonV's Avatar
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    Quote Originally Posted by bpilati View Post
    I'm going to for 2-1/4" too, I hear it's gives you better mid-range power. 2-1/2" is good for racing and lots of high revs. That's what I hear.
    Nope, not true. IF the 2.25" is limiting you, the 2.5" will be better in ALL aspects. If the 2.25" is not limiting you, and it probably wouldn't on a stock-ish L24, then a 2.5" will not hurt nor help. It'll just take away some ground clearance.
    2/74 260Z

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    Registered User ksbeta's Avatar
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    Quote Originally Posted by surfer.tech View Post
    Custom order from Fujitsubo Japan. There's 3 of us on here with the same exhaust, but we all run different headers.
    I'd be very interested to hear what this sounds like.

    I've never been able to determine what header/exhaust/muffler combination is on my '70, but I love the sound:

    http://www.youtube.com/watch?v=mTlVK7zbbxw
    Feb '70 & Mar '71 240z

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    Administrator bpilati's Avatar
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    Quote Originally Posted by LeonV View Post
    Nope, not true. IF the 2.25" is limiting you, the 2.5" will be better in ALL aspects. If the 2.25" is not limiting you, and it probably wouldn't on a stock-ish L24, then a 2.5" will not hurt nor help. It'll just take away some ground clearance.
    It's the old back pressure argument. The engineer in me says the less restriction the better. More mass flow, less friction losses from turbulence is better. But some says you need back pressure; these discussions go back decades.
    Bryan Pilati
    1971 Datsun 240Z (8/71; 920 paint)
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    Registered User LeonV's Avatar
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    Quote Originally Posted by bpilati View Post
    It's the old back pressure argument. The engineer in me says the less restriction the better. More mass flow, less friction losses from turbulence is better. But some says you need back pressure; these discussions go back decades.
    This has been discussed countless times. Those that wish to perpetuate the myth are ignorant of the facts. Discussions about the Earth being flat went on for quite a while, doesn't mean they were anywhere close to being right.

    Hopefully, this thread can properly inform the "you-need-backpressure" crowd.
    2/74 260Z

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    What about 2 inch exhaust all the way back?

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    Registered User LeonV's Avatar
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    Quote Originally Posted by sparegolfer View Post
    What about 2 inch exhaust all the way back?
    Too restrictive for best performance. However, if you don't care, then go for it.

    My stock-cammed L24 has dual 2" pipes.
    2/74 260Z

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    Administrator bpilati's Avatar
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    Quote Originally Posted by LeonV View Post
    This has been discussed countless times. Those that wish to perpetuate the myth are ignorant of the facts. Discussions about the Earth being flat went on for quite a while, doesn't mean they were anywhere close to being right.

    Hopefully, this thread can properly inform the "you-need-backpressure" crowd.
    Thanks Leon, good stuff. When we were designing systems for fluid flow in college, no one ever suggested we increase friction or reduce flow rate to improve efficiency. That's why I've always been baffled by the talk of backpressure.
    Bryan Pilati
    1971 Datsun 240Z (8/71; 920 paint)
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    Registered User LeonV's Avatar
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    Quote Originally Posted by bpilati View Post
    When we were designing systems for fluid flow in college, no one ever suggested we increase friction or reduce flow rate to improve efficiency.
    Precisely!
    2/74 260Z

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    You don't want back pressure. You want momentum.

    Problem is that sometimes an increase in momentum is accompanied by an increase in back pressure.

    I'm no expert in the field, but my theory is that since an increase in momentum is often accompanied by an increase in back pressure, people started thinking that back pressure was the desired effect, and it's not. It's the unwanted, but often necessary, side effect.

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    Registered User Hunter260Z's Avatar
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    I'm currently running a Monza exhaust system from the 80's. So what's the best muffler or exhaust going today. I know this thread is old, but things change in 2 years. Looking for ideas. I've heard bad reviews on the Motorsport Auto turbo exhaust system.
    Ray
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    I've got the Premium Exhaust from MSA, Motorsport! MSA Premium Exhaust System, 9/74-78 260Z-280Z (for 6-1 Headers) - The Z Store! Nissan-Datsun 240Z-260Z-280Z-280ZX-300ZX(Z31/Z32)-350Z-370Z Parts to match their 6 to 1 ceramic coated header and absolutely love it. Some people complain about the droning at constant highway speeds and this seems to be solution, http://www.summitracing.com/parts/WLK-24215/. I drive my Camry on the highway so the droning doesn't bother me when I'm ripping around here in my Z. It bothers other people though, it's pretty loud when you're on it, but it only bothers them for a second or two.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Like siteunseen, I have also used the MSA premium exhaust system with their coated headers. Fit and finish was excellent and the install was very straightforward.

    About the only thing I was not 100% with was the included DynoMax muffler. I had issues for a couple of reasons. First, the sound was not exactly what I was looking for and second, it was a very tight fit getting it up in the cavity in the rear and as a result I would experience the muffler vibrating against the body frame at times, especially when it was cold. I installed this on a late manufacture 260Z with the early 280Z bumpers and this configuration leaves less room in that cavity than the 240 or early 260.

    I ended up replacing it with a MagnaFlow polished muffler that was slightly smaller than the DynoMax, so the fit was better and it virtually eliminated any vibrations that I had before. I also like the sound of this better as well. It is throatier and sounds great as you go through the gears. I have even had people comment that they thought I had a V8 under the hood.

    Mike.

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    The bigger the diameter lower the sound. I like the pitch of a super-sprint exhaust it sounds a lot like the 50's/early 60's Ferrari. If you want a lower register sound go with a larger diameter resonator. If money is no object go with the Fujitsubo system the build is first class, but you can build something that sounds and functions the same for 1/4 of the cost, especial if you do not care that you have ceramic coated stainless steel. Now their was a company that makes a resonator that looks the same as the supersprints inside and out. Which I'll spend the looking for it if someone is interested, I'll even measure my full sysem and give you the meshurements to copy the original setup.

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    Borla for me too, Nissan Comp. headers down to 2 2-1/2" to the Borla
    10/69 Fairlady ZL 5-speed
    '72 240Z
    '09 Nissan Altima Coupe

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    Magna flow turbo . Go as big as you can fit. I'd run a second resonator and run all 2.5 or 3" pipe
    Steve
    71 240z,bw-5sp 2.4-40 over,balanced,e-88,big valves,ported&polished, stage2,header, triple Mikuni's 40's
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    Used the MSA six into one as well.

    Didn't fit well for my application, ended up at my local muffler place to have it tweaked into shape. Also installed a flow through bottle resonator that eliminated the droning......highly recommended.

    Still howls when you get on it but won't annoy the world when you are cruising around.

    Dean

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    idoxlt8

    This is exactly what I have heard about the MSA system. I also heard if you were running R-200 then you would need to bend the tailpipe to make it fit. Also add more hangers
    Ray
    1974 Datson 260Z
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    Just received my MSA Exhaust last week and was looking forward to the final mechanical repair to our car ... sadly it doesn't fit. As mentioned above, it looks like MSA exhausts may have some alignment issues. I'm running a stock manifold on a stock Z and expected a everything to fit without issues. The price is attractive but having to have it tweaked may negate any price savings. Can't address the sound of the exhaust yet since its not installed yet.
    '77 280z Coupe (manual) - running and almost roadworthy
    '76 280z Coupe (automatic) - rusty, rotted and almost stripped of anything useful.

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    had a single magnflow rear box with 3" pipe in the car. made 118db at 3750rpm. put in a second big one on the long straight pipe and volume went down to 109db at same rpm.
    sound is good but would prefer a more high pitch tone.

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    Quote Originally Posted by fixitman View Post
    I have a 2 1/2" Borla exhaust system for sale in the classifieds. I'll give you a good deal on the muffler and any of the other stainless steel parts.

    Fixitman
    I don't see this in the classifieds?


    EDIT: Just realized this was 2 years old.
    Last edited by HuD 91gt; 10-17-2014 at 01:00 PM.

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