Jump to content

IGNORED

Having a bit of fun comparing muffler sounds on Zstory Race/Sport system with centre resonator


Recommended Posts


@AK260

 That was fantastic.   Lying here in bed watching your videos and giggling like a schoolgirl because they all sounded amazing.  It's been sooo long since I've heard my motor run like that.  Best part is you tested the muffler that will be part of my build.  Thanks for putting this together.

  • Like 1
Link to post
Share on other sites
I have MSA headers straight piped into the Z Story JDM muffler.  No resonator, just straight in.  I wouldn't have it any other way.   I love to take it through the tunnels at 5k plus RPM as it screams like an F1 car.  prob asking for a ticket but I can't really help it. I reckon that's what I'll tell the police after I'm pulled over.
Zj.thumb.jpg.820c9ecf360a761105e739ca16da1723.jpg


Oh I hear you! The resonator does kill the sound a fair bit and it was great without it on my L26. But the more aggressive cam and cam timing on the L28 with it’s bigger displacement on 10.5:1 just introduced too much drone for my Lilly soft ears!



[mention=32052]AK260[/mention]
 That was fantastic.   Lying here in bed watching your videos and giggling like a schoolgirl because they all sounded amazing.  It's been sooo long since I've heard my motor run like that.  Best part is you tested the muffler that will be part of my build.  Thanks for putting this together.


Glad the musings of a madman had some value! Hope you get the car is back to roaring away again soon!
  • Like 2
Link to post
Share on other sites

@AK260 these are great, feel free to send me the exhaust parts you did not use and ill test them to see if they sound different in the states. :^)

Can we get some more photos of the twin vertical pipe setup? Want to see how it fits the exit on the rear valance. 

  • Like 1
Link to post
Share on other sites

Terrific! Thrush muffler is very American sounding, JDM muffler although glorious race sound would get me in trouble with my neighbors and I think might get a bit tedious on  long drives.

The classic Z Story muffler is the sweet spot for me, thanks for doing this, excellent comparison by driving the same route, same revs, window open/closed.

  • Like 1
Link to post
Share on other sites

Sweet thread!!!

Reptoid Overlords how’s the fitment on your car? It looks like you have a 79 or 80ZX.

On my 79, the muffler sits there but then the pipe crosses over and exits on the opposite side where there is a cutout in the valance.


Sent from my iPhone using Tapatalk

  • Like 1
Link to post
Share on other sites

@AK260 Thank you for this post, great stuff. Sean should have these on his site for potential customers.

Quick question, were any resonators used or straight from header to muffler for your tests?

  • Like 1
Link to post
Share on other sites
Sweet thread!!!

Reptoid Overlords how’s the fitment on your car? It looks like you have a 79 or 80ZX.

On my 79, the muffler sits there but then the pipe crosses over and exits on the opposite side where there is a cutout in the valance.


Sent from my iPhone using Tapatalk
It's an '80ZX. The original exhaust exited on the passenger side(north America/continental Europe). I bought headers and exhaust pipe from MSA for the '81-'83 cars that exit on the driver's side. I deleted the plate(valance) that hangs down under the rear bumper, and above where the exhaust pipe exits.

The fitment is perfectly snug using the existing factory hangars. Sean sends you some mounting hardware with the muffler. And I'm sure whatever else you purchase that requires it.

Link to post
Share on other sites
Posted (edited)
11 hours ago, heyitsrama said:

@AK260 these are great, feel free to send me the exhaust parts you did not use and ill test them to see if they sound different in the states. :^)

Can we get some more photos of the twin vertical pipe setup? Want to see how it fits the exit on the rear valance. 

I'm sure the longitudinal differences will make it sound completely different :P

 

Will get you some photos tomorrow - the heavens have opened up here and Noah will be sailing past at any moment!!  😞

 

7 hours ago, grannyknot said:

Terrific! Thrush muffler is very American sounding, JDM muffler although glorious race sound would get me in trouble with my neighbors and I think might get a bit tedious on  long drives.

The classic Z Story muffler is the sweet spot for me, thanks for doing this, excellent comparison by driving the same route, same revs, window open/closed.

Thank you sir. Appreciate the kind words. The thing I like about it is that no one box is perfect for everyone - they each have their own characters and suit different needs. I really like that muscle car sound. On the old L26 with the MSA header and no resonator 2.5" pipe, it was just the PERFECT sound that had me at hello. Once the car fired up, there was NO WAY I wasn't going to buy it! I may have ended up with a better car if I had taken my time more, but the sound was just so grin inducing, I regressed to being a 4 year old with a car that went broooom!

 

3 hours ago, Geoff's 240z said:

@AK260 Thank you for this post, great stuff. Sean should have these on his site for potential customers.

Quick question, were any resonators used or straight from header to muffler for your tests?

Sean is more than welcomed to - I'm not precious about them. Although he may want something more professionally done.

 

A good question which I didn't address in the video - the car has the Race / Sport header, it's pipes and the Z story centre resonator that comes with the full package (which if memory serves is 18" long?).

Edited by AK260
  • Like 1
Link to post
Share on other sites

Nice comparison, thanks for taking the time to create the videos, and share it with us.

I used a LoBak auger muffler on a setup I made for my race Z. I ran a production based class that required the use of the stock intake and exhaust manifolds, but allowed any exhaust system so long as it exited the car behind the steering wheel hub, and met the sound regs.

Since the heat from the exhaust was burning my foot where the pipe ran down the transmission tunnel, I built a headpipe that exited behind the left front tire, and hung the muffler from the rocker panel with a turndown at the outlet. The muffler is a LoBak auger muffler, made for circle track racing. I used 1.75" pipes from the manifold to just before the fender (wing) and fabricated a 2 into 1 collector with a 3" mandrel bend, connected directly to the LoBak. Had a local flamespray shop coat it with aluminium (this was before the ceramic coating thing happened) inside and out.

Looks awesome, never blew over 80db at the track, and my feet don't get burned anymore.

My cylinder head guy worked over the SU carbs, intake and exhaust manifolds, put it all on his flowbench with the head and exhaust, and made significant gains in airflow into, and out of the head.

All to gain an advantage within the rules.

 

A photo of the part that is outside the car.

32405453813_d642e71523_4k.jpg

 

 

 

 

 

Edited by Racer X
  • Like 2
Link to post
Share on other sites

great video ak260!!! love the test sounds. thanks for all your work , I have been looking at there mufflers sometime now and your video gave me what I was looking for . 1 question are you straight piped or are you using a resonator ?

  • Like 1
Link to post
Share on other sites
  • AK260 changed the title to Having a bit of fun comparing muffler sounds on Zstory Race/Sport system with centre resonator
Posted (edited)
23 hours ago, kully 560 said:

great video ak260!!! love the test sounds. thanks for all your work , I have been looking at there mufflers sometime now and your video gave me what I was looking for . 1 question are you straight piped or are you using a resonator ?

 

Thanks Kully! You're most welcome, glad my clowning about has some value - although I did have a lotta fun! 😉

Not a straight pipe - I did indeed have the centre resonator that comes with the Race / Sport system. 

 

 

Edited by AK260
Link to post
Share on other sites
Posted (edited)

Ps. Just uploaded the Street Muffler - the last one of the series. Please forgive the shaky video halfway through. The camera mount broke off, but at least the sound is all there!
 
 

Edited by AK260
  • Like 2
  • Haha 1
Link to post
Share on other sites
that just through a wrench in my thoughts haha



Sorry about that ! :p

Just think of the Street as a Classic with the volume turned down and virtually invisible on the cruise / part throttle.

I forgot to mention, my car does have a healthy covering of Silent Coat 4mm MLV sound deadening. So it’s probably quieter than most. But equally, the very low bass frequencies will still get through MLV. Especially those on that 2k-2.5k rev range.
Link to post
Share on other sites
8 hours ago, AK260 said:

Ps. Just uploaded the Street Muffler - the last one of the series. Please forgive the shaky video halfway through, the camera mount broke off, but at least the sound is all there! 😞

 

 

This is the most entertaining video yet, a lot of fun. 
As for the muffler, it has a classic L series six cylinder sound. I like the bbbrrrrrraaapppp! as the throttle is mashed and the engine winds up. 
Beautiful Datsun music.

 

  • Like 1
Link to post
Share on other sites
Posted (edited)
5 hours ago, Racer X said:
This is the most entertaining video yet, a lot of fun. 
 

 


Glad to be of service sir! 😉

Wait until the next one, I have some ideas that will either make me look like a complete c@ck or be funny!

 

 

 

 

Quote



Beautiful Datsun music.
 

 



Amen! So true!!

 

Edited by AK260
  • Like 1
Link to post
Share on other sites
  • 4 weeks later...
This is my Full-Race (same form as the Race-Sport but larger primarys), line and Classic muffler.
 
So, in early July and under this summers' typical weather so far, our national French Z club assisted with Peter Autos' Historic-Racing Le Mans Bugatti and were allowed several track sessions each day.....who could resist ?
Please bear in mind that I haven't driven my Z on a circuit since 2009...and that the engine is still limited to 4500rpm and so lacking a LOT of horsepower and this wet session was undertaken on Toyo R888 semi-slicks !
 
Enjoy and have a good laugh on me at the end.
 
Apparently there are more videos to come earlier in the weekend.
 
ps the real action starts at 4mins at the beginning of the pit straight - the first out lap was (always in every session) driven behind the safety car :
 
Many thanks #DavidDonné for the filming and editing.

001 (4).JPG

007.JPG

019 (3).JPG

032.JPG

073.JPG

  • Like 2
Link to post
Share on other sites
Posted (edited)

You were lucky to avoid that wall mon mon'ami!!!!! 😮

 

Does sound awesome. The gearchanges are quick - what 'box do you have in there?

Edited by AK260
Link to post
Share on other sites
  • 3 weeks later...

@AK260 Amazing work! Solved a problem I have been facing for a while with understanding Sean's offering and the different options. Thanks much!

If you still have the mufflers and can get an exterior mount, it would be cool to hear what all three of these sound like from outside of the car too while driving. 

  • Like 1
Link to post
Share on other sites
[mention=32052]AK260[/mention] Amazing work! Solved a problem I have been facing for a while with understanding Sean's offering and the different options. Thanks much!
If you still have the mufflers and can get an exterior mount, it would be cool to hear what all three of these sound like from outside of the car too while driving. 


Thanks Muzez, glad my clowning about had some value.

I don’t think I will be doing the one from the outside anytime soon as I am using an iPhone and the thought of hanging £1000 of phone off the rear while tearing about doesn’t excite me :p

But I will look into a second hand GoPro if I do something like this again.
  • Like 3
Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.