Jump to content
SAU Community

New Exhaust

ironpaw

By ironpaw,
in Four Door Family & Wagoneers

 Share

Recommended Posts

Old Gregg Enthusiast

Old Gregg

Posted
Posted

Could be the soot, but it may also be water in the resonator.

Unless he does really short trips continually I would have thought it would get too hot for water to condense in the resonator?

With just the hiflow cat (instead of the one in the dump and one in front pipe) should be finding it gets hotter further back in the exhaust system now.

Don't have a resonator in atm and is just 3" straight throught to original muffler and it is getting quieter so think the soot build up is most likely settling it down.

iamhe77 Grand Master

iamhe77

Posted
Posted

Unless he does really short trips continually I would have thought it would get too hot for water to condense in the resonator?

With just the hiflow cat (instead of the one in the dump and one in front pipe) should be finding it gets hotter further back in the exhaust system now.

Don't have a resonator in atm and is just 3" straight throught to original muffler and it is getting quieter so think the soot build up is most likely settling it down.

It is more due to the design of the Legalis (and the original Nismo for that matter).

You can see in the pic below that there is a resonator off to the right of the main pipe, this is the one I am referring to.

For some reason, it is quite normal for this to have some water in it after a bit of use (have even seen some guys state it is the reason they have put them up for sale on Yahoo - bit dramatic if you ask me)

FujitsuboLegalisR.jpg

Old Gregg Enthusiast

Old Gregg

Posted
Posted

It is more due to the design of the Legalis (and the original Nismo for that matter).

You can see in the pic below that there is a resonator off to the right of the main pipe, this is the one I am referring to.

For some reason, it is quite normal for this to have some water in it after a bit of use (have even seen some guys state it is the reason they have put them up for sale on Yahoo - bit dramatic if you ask me)

FujitsuboLegalisR.jpg

Have seen that weird little growth off the side before and have wondered how much it might help quieten the system.

Guess it would take a bit longer to heat this part up as the hot gas doesn't flow straight through it so would stay cool enough for water vapour to condense a bit longer than the rest.

Maybe they should put a drain plug in it!

Sunkist Grand Master

Sunkist

Posted
Posted

Have seen that weird little growth off the side before and have wondered how much it might help quieten the system.

Guess it would take a bit longer to heat this part up as the hot gas doesn't flow straight through it so would stay cool enough for water vapour to condense a bit longer than the rest.

Maybe they should put a drain plug in it!

apparently i read in another thread that it sends a pulse noise/signal, when it rebounds off the end, back to the exhaust cancelling out most of the sound(correct me if im wrong - iamhe im sure you will anyway) which could be possible. kinds of like in/out of phase or cross phase in audio i guess.

iamhe77 Grand Master

iamhe77

Posted
Posted

It helps to quieten it quite a bit (although I have not cut it off my Nismo to check - nor will I).

Here are a couple of clips I put up using a digi camera. As you can see/hear, neither are particularly loud.

Both have a very, very similar design although the pipe to the resonator is angled slightly differently and the rear muffler is completely different.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

Keep in mind the dump on this thing is massive, around 4 inches wide oval under the passengers feet. It will definitely sound different and slightly louder.

The drone at 2000 revs is a pain, very hard to get rid of. I cruise on 2500 now and don't hear it.

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Lithium
      Shoota's R33 GT-R RB30/26

      By Lithium · Posted

      This is a story of my life things, I learned eventually (thanks to someone calling me out) that my enthusiasm for discussing and sharing ideas that it came across as arrogance and I'm like... WTF?!    One thing I'm pretty sure I justifiably pride myself on is knowing that everyone will have things they can teach you, and you're always going to find out that something you think you know turns out wrong - you just don't know what it is until you get there.   Just the bursting enthusiasm that comes with ADHD when you hit something that gives you dopamine dumps can come across like you think everyone else is wrong or don't matter. But yeah, I'm a software engineer by trade and also do tuning in weekends and 100% have long had a reputation for  quickly making connections when resolving problems or forming solutions that I've sometimes had to take people form a long walk from start to end to explain how I ended up where I did when it's seemed "too simple" when I've stated my initial case, and had the "WTF" type reaction when they've realised how much was actually considered haha.   My reward is that I get all the curly problems thrown at me.
    • MBS206
      Shoota's R33 GT-R RB30/26

      By MBS206 · Posted

      Wives never seem to find things funny. Especially when they're trying to sleep, and you've found the new funniest thing ever. I've never seen someone be able to get try and be cranky with me, while they're holding back fits of laughter... 😛   Also, I tell mine it's payback anyway. She has BiPolar. So the household can get quite emotionally wild at times 😛
    • Butters
      WA PITS: Am I screwed?

      By Butters · Posted

      I'm not up to date on the latest, but for basic modifications like pod filter, lower springs etc you can get a modification permit at the time of inspection.  For more serious modifications you will need engineering.  Intercoolers used to fall into the mod permit rule but its been a long while since i looked it up.   Either way you will be able to get it registered, just a case of $300 vs $3k . 
    • Degzy
      WA PITS: Am I screwed?

      By Degzy · Posted

      Hi everyone! I’m the new owner of a 1996 R33 GTS-T, I’ve purchased this car over from Queensland and brought it to Western Australia and I’ve found that there is a hole cut out in the engine bay for the FMIC that enters into the wheel well (fender liners are in the boot). For anyone that has had to get their car over the PITS here, will this be a major issue?   
    • Ozdavroz
      One of these is not like the others 😂

      By Ozdavroz · Posted

      Yeah I've spotted this one too, whenever it's lotto superdraw week and I'm browsing car sales dot com for my new ride They must be dreaming, maybe it's worth 150k for the link to Brock?
×
×
  • Create New...