I am going to be putting a 3 inch exhaust system on my D22 and i want the whistle noise when i take my foot off the accelerator like Graham Cahill's GQ shorty on the 4wd action dvds. How do i do that? does it have to be complete straight through or have a cat or what?
Exhaust Whistle from turbo when back off accelerator
- Thread starter Navara09
- Start date
Help Support Nissan Navara Forum:
maddogrc
Member
wank factor alert!!!!!!!!!!
maddogrc
Member
you mean like this ay?
[yt]watch?v=62Sh9E2cXN4[/yt]
[yt]watch?v=62Sh9E2cXN4[/yt]
maddogrc
Member
a full aftermarket setup will get you that noise, including turbo.
i havent seen any stock turbo diesels sound like that, the one in the video is running an aftermarket turbo (aka from NA to turbo) with a 3" system and a denco air to water cooler (i believe)
its the setup i'd do, but i prefer reliability
i havent seen any stock turbo diesels sound like that, the one in the video is running an aftermarket turbo (aka from NA to turbo) with a 3" system and a denco air to water cooler (i believe)
its the setup i'd do, but i prefer reliability
maddogrc
Member
my system is 2.5" with extractors and twin resonators, lol no cat, no muffler
but as a member on here who USED to own a navara, the system i would personally get is a 2.5" from the turbo back (new dump pipe) with no cat and no muffler.
i believe running no muffler may get a bit of drone and may be a bit noisy for some, but if it was too loud i'd simply have a muffler put into the system, and it'd be a high flow/straight through muffler at that.
i reckon 3" is just too big for a 2.5L engine, but thats my opinion. a 3" on a 4.2L TD, definitely.
but as a member on here who USED to own a navara, the system i would personally get is a 2.5" from the turbo back (new dump pipe) with no cat and no muffler.
i believe running no muffler may get a bit of drone and may be a bit noisy for some, but if it was too loud i'd simply have a muffler put into the system, and it'd be a high flow/straight through muffler at that.
i reckon 3" is just too big for a 2.5L engine, but thats my opinion. a 3" on a 4.2L TD, definitely.
YouTube - Navara 3" exhaust
This is a link of my nav with a straight through 3". As far as I know a cat isnt needed on diesels. I know the sound your talking about, its like a high pitch whine/blow off valve noise as he backs off in the patrol. Ive been trying to find out what makes the noise cause I love that noise but as the others said I think its from a larger aftermarket turbo
This is a link of my nav with a straight through 3". As far as I know a cat isnt needed on diesels. I know the sound your talking about, its like a high pitch whine/blow off valve noise as he backs off in the patrol. Ive been trying to find out what makes the noise cause I love that noise but as the others said I think its from a larger aftermarket turbo
maddogrc
Member
oh boosted, cats ARE needed on the current modern diesels, its an emissions law.
on the older diesels such as my landcruiser (1998), they dont need cat as the emissions standards were different back then.
plenty of people with diesels dont run them, even if they come with cats from the factory, but if caught say hello to about $10,000 in a single fine more if you try conceal it.
its a risk a lot of people take, and over here in WA most cops dont honestly care if they check your car and its a diesel, but if you go over the pits without one, BAM!
on the older diesels such as my landcruiser (1998), they dont need cat as the emissions standards were different back then.
plenty of people with diesels dont run them, even if they come with cats from the factory, but if caught say hello to about $10,000 in a single fine
more if you try conceal it.its a risk a lot of people take, and over here in WA most cops dont honestly care if they check your car and its a diesel, but if you go over the pits without one, BAM!
Might be a bit different over here in queensland. I went to my local exhaust shop and he didn't put one in and seemed to think we didn't need them in queensland. He hammered the point of having one in a petrol car but not in a diesel
maddogrc
Member
pretty much if the car comes with one, you HAVE to run it by 'law'
unless you can prove the cars exhaust gases are below the emissions standards without one...
same with a muffler, if you can prove the cars exhaust noise is less then the legal dB limit then you dont need a muffler.
plenty of exhaust shops i called just said 'you dont really need one, its a diesel', however there were the odd few which refused to do it without a cat as they'd lose their business knowing they put a car on the road which is voiding the emissions laws (which are very strict and bs these days as you know, everything is about emissions these days)
unless you can prove the cars exhaust gases are below the emissions standards without one...
same with a muffler, if you can prove the cars exhaust noise is less then the legal dB limit then you dont need a muffler.
plenty of exhaust shops i called just said 'you dont really need one, its a diesel', however there were the odd few which refused to do it without a cat as they'd lose their business knowing they put a car on the road which is voiding the emissions laws (which are very strict and bs these days as you know, everything is about emissions these days)
pointblank5
Member
i started off with a 2.5" exhaust with straight thru muffler from behind the cat. didnt change much, then i got a dump pipe made and a high flow cat put in, then it made that whistle, not as loud as the LC in that video tho but u can def hear it in the cab. but mines the 3L.
the_bluester
Member
- Joined
- Jan 15, 2010
- Messages
- 431
- Reaction score
- 1
Ahem, don't tar us all with the riceboy brush thanks! You never know who might have a Skyline. I do and no BOV in sight, plenty of whistles and noses and LOADS of compressor surge on shutting the throttle though, plus a nice loud straight pipe to make it really sound the goods.
[YT]http://www.youtube.com/watch?v=hDsTH1qgz74[/YT]
Similar threads
