Jump to content
SAU Community

Recommended Posts

^^LOl i knew the regulation where tough but that is pretty rediculous. Its a stock car lol that would mean that everything with an exhaust is an epa?

When my mate got done a while back, the bloke told him to take the pod off and it reduced it by a few DB (on back off pressure)

I have the fujitsubo legalis r on my R33 GTST and it was 90 dB when tested

Some how i carnt see how EVERY after market exhaust can be illegal because that means you can only ever fit stock parts and if that car goes out of production like our Skylines then parts stop being made and become harder to source and pattern parts start to become more avab and at the fraction of the cost. (sometimes)

This of course happens before hand as well but you get the picture.

We have a company called aj auto parts that basically sells pattern parts im sure you have something close

There not stock parts so would they be illegal????

Edited by jjskyline79
Its doubtful that if its aftermarket exhust it will pass the stock r33 cat back is pretty borderline to legal ranging form like 86-90 and thats real quiet so doubtful any aftermarket would pass , can come close though

You mean a 15 year old mufflers that have probably fallen apart? :D

Also remember there is so MUCH restriction that it's blowing so hard it can trip off the meter as well.

Things like opening up the plug gap, good ignition spark and so on can all have noticeable effects as the dB meter things get set off by a misfire and so on.

there is no such thing as a legal aftermarket exhaust.

Erm... what? :woot:

You can get aftermarket exhausts - legal. Fact!

hokay

i go punch daalder exhaust in the head now lol

from the info they gave me, with restrictions being so tight any exhaust modifications they do can easily trip the 90db reading.

Who said they were lying?

Perhaps they just don't have the skills/ingenuity to make a high flowing quiet exhaust

Oh, if you are (vaguely) interested, the Legalis on my M35 rates at 88dB

Edited by iamhe77
ive just got my r34 gtt on p plates.. its got pod.. stock smic hks gt-rs turbo stock dump and full kakimotor exhust... guesing thats illigal? i drive like a grandmother ;)

main illegal part is that your on your p's in a turbo car. if the pod filter is boxed than its fine.

nah not worried about the turbo part.. ive got a exemption for some days of the week and a managers letter for the rest of the week... the main thing im worried is defects... i thot a pod without a box is fine with stock cooler... in melbourne tho

giggity giggity alright...found an exhaust place i like close enough to home to walk back, and they're the vic roads suggested one too for testing and stuff - waverley brake and exhaust blackburn road crn ferntree gully road.

Got a db test done on Friday, it was 94 :-( The guy said he expected much worse but it wont be a hassle to get fixed, i've booked it in during the week to have two new mufflers installed to replace my existing ones, and he'll weld the two cannons i have back on to look schmick.

no room to tuck the exhaust, so i'll have to raise the suspension by a cm or less on each shoe, which hopefully wont make it look like a 4x4, cause seriously the 10cm wheel tool is only just scraping that one section by a fraction.

Here's a pic of my exhaust years ago when i first got it, the twins are excellent never looked back so happy. From the 6 times i was pulled over last year they never checked the height, but after next week's appointments i'm going to be feeling way more confident now with all the crack downs etc. can't wait for the weekend's members event :P

post-44524-1270956557_thumb.jpg

giggity giggity alright...found an exhaust place i like close enough to home to walk back, and they're the vic roads suggested one too for testing and stuff - waverley brake and exhaust blackburn road crn ferntree gully road.

Got a db test done on Friday, it was 94 :-( The guy said he expected much worse but it wont be a hassle to get fixed, i've booked it in during the week to have two new mufflers installed to replace my existing ones, and he'll weld the two cannons i have back on to look schmick.

no room to tuck the exhaust, so i'll have to raise the suspension by a cm or less on each shoe, which hopefully wont make it look like a 4x4, cause seriously the 10cm wheel tool is only just scraping that one section by a fraction.

Here's a pic of my exhaust years ago when i first got it, the twins are excellent never looked back so happy. From the 6 times i was pulled over last year they never checked the height, but after next week's appointments i'm going to be feeling way more confident now with all the crack downs etc. can't wait for the weekend's members event :P

lol to 6 times, where is this weekend cruise event?

Hey how long did it take to complete the test and how much? I want to swing past there also in that case

It's a paid up members only cruise, there's another post on here somewhere about it, but once you're signed up you get into the members forum section...

As for the test, i called the day before and he said drop in at 10am. He came out by around 5 past with his kit, set it up, turned me on, revved it a few times to 4200, then called me over to show me what it was doing. Only cost $37 and I could have left 5 minutes later, but decided to wait until a hoist was free so we could get under and see what could be done to make it legal.

Waverley Exhaust and Brake Centre 9561 1522

nah not worried about the turbo part.. ive got a exemption for some days of the week and a managers letter for the rest of the week... the main thing im worried is defects... i thot a pod without a box is fine with stock cooler... in melbourne tho

Did you check with the authorities whether that managers letter holds any real value? Only thing I'd trust is the exemption.

I believe the rule is one intake modification so as long as you have stock cooler should be alright.

plus i dunno how strong would the argument be that you need a skyline for work purposes lol can't see how it is a very practical "work" car lol

Just stay away from the knox area and you most likely should be fine. skyline exceed the 1.5 ratio- kw per tone anyways so they are technically illegal any way u look at 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


  • Similar Content

  • Latest Posts

    • Keen to see the turbosmart data, to date I've only seen negative things in terms of response for them. Very small sample size though.     Hawkins is a big advocate in his videos of the larger rear housings. I managed to make similar power with a lower spec motor on the smaller .8 rear, keeping decentish spool.  The people he works with now are big power cars compared to mine though, mine really is setup to drive around and enjoy.  I don't have any back pressure monitoring though, so couldn't say if its good or bad on my car, just that it does what I want it to do.   Future I want a higher compression more cubes motor to give a bit more bottom end and hopefully the new g35-1150 gets me to the 850 rear comfortably.  But maybe I won't due to exhaust back pressure.
    • No, I refuse to buy their cheap ass crap! I do need to order a bunch of different nuts/bolts to refill my nut/bolt wall though. Maybe you could go for a walk through Bunnings for me? (Or send me some stuff from your work? )   I really struggle to work out how the US standardised to Metric in what the 70s or 80s, and yet, half a century later, there's been little done to actually bring it into fruition. It truly baffles me    On the whole Fastenal thing, I went reading their site (My god they sell a lot of varied stuff!), and it seems like it really depends what store you're near if you can walk in and just grab a few small things, or if that branch is primarily distribution with only a small window of "counter time" available (if at all). That definitely makes it harder, as move locations and it drastically changes your ability for success   For things like your M6x1.0, if you want to work on your own Skyline, and you also have a "home workshop" I'd recommend setting yourself up a small Nut/Bolt wall/section. It doesn't even need to be big at all. Most things depending on the diameter, will be a specific pitch, like the M6x1, M5x0.7 etc. Bigger bolts is mostly 1.5, except for a small number of things and that will come down to torque. From memory bolts for the brake calipers (and other things that need a lot of torque) will end up being a 1.25mm pitch. Save up a few dollars, and order a range of nuts/bolts. If you want to minimise cost a little, buy something like M6 x 40, and M6x70mm (1mm pitch) in both. In addition, buy yourself an M6x1mm thread chaser. That way you have long bolts that you can cut down to size, and then chase the threads out. Funnily enough, I find what I'd pay here for ordering 5 bolts, I can pay about 50% more and you'll get 100 of them.   If that doesn't quite work out due to space / ability to buy plenty up front, then each time you need some bolts, order 100 of what ever you're getting. Put them in clearly marked containers. Over a few years, you'll acquire plenty of different sizes, and will end up ordering less and less. And the cost for 100 bolts won't be much more than you paid for your 5 you needed to order anyway  Just takes a little planning ahead, by investigating what nuts/bolts you'll need, and ordering them before doing the job.     Edit: If it's also primarily for working on just the Skyline, for some reason my brain is screaming that at some point, either Nissan, Nismo, (Or possibly a third party) was selling a "kit" of every nut and bolt in a Skyline, purely for people restoring/rebuilding. It'd likely be quite expensive, but would give you every/any nut/bolt you need for stock/factory things. I'm not sure if it's still available, or even if it actually fully came to market, it's just something niggling in the back of my brain that you could look into further if that sort of thing interested you? (It might have been for the R32 GTR or something specifically too, and not just any Skyline)
    • 90lb/min @ 20psi is wonderful, not so much of a problem with the G35-1050's compressor efficiency (aside from how bad they roll back at higher pressure ratios).  The issue is more to do with the turbine's flow, which is why I'm not sold on going an even higher flowing compressor with the same turbine.  I'd say go back over Motive DVD's testing of the G35 1050 and Hawkins's comments regarding exhaust back pressure issues with it, I'd need to go back but I have in my head he went to the biggest hotside and ended up sacrificing a lot of spool (so it ended up behaving like a bigger turbo) and still had EMAP issues.  I've heard various other experiences along the lines of that. At this stage at least I rate all I've seen about Xonas (for transparency I've not used one directly, but I have spoke plenty with people who have) to have low exhaust restriction for the response they offer for any given setup - basically they allow the engine to breathe, which is good for the engine and makes making power a lot easier.  You arguably don't have to even push quite the same amount of airflow through an engine to make the same power if you don't have the bum plugged up with exhaust gas struggling to escape the engine due to an underflowing turbine.   In terms of reliability, to be fair I've had great luck with Garrett turbos as well - my GT3076R lasted forever, then I sold it and the next owner had no issues, then that car got sold and it was still going strong last I ever heard about it.  The trick is with the old GT-series turbos the compressors etc were no way near as efficient as what we have these days, it was almost hard to push them into severe overspeed situations without having a boost leak or something - and that is what often starts the failure situation.    In terms of your G35 I'm pretty sure you're running yours within sensible limits, something people with Xonas and Precision turbos aren't often so inclined to do.  The "compressor maps" are "Joe blogs ran 45psi through his 6466 so I can do the same" and built their setup to send it to the moon.  I've seen EMAP and compressor speed data where people have actually set that stuff up on Precisions and Xonas which have been run hard and the comp speed numbers are very very exciting at times - like I've seen 76mm Precisions run at rpm that you ideally shouldn't run a G35 1050 lol.   I know people who have run G-series Garretts hard and hard a failure, then replaced them with Pulsar turbos as a cheap "get it going" stop gap with the intent of doing a proper upgrade when THAT fails... and are still running the same thing.   Like anything, ymmv and it's not always to do with the quality or trustworthiness of said product. I've been provided with a bunch of compressor maps for Turbosmart turbos and will update my list based off that, they could prove to interesting reading and an interesting alternative as well.
    • Just cage it, call it a race car, and then fall in love with the chirp chirps through pit area!   Also, this is coming from someone with a completely locked diff...
    • I still have an old R32R left over from when they were a thing in the early 2000's. It was, for its time, done about right. But its time was 20 years ago.  I did try and update it a while back but it was cruelled by a (recommended) muppet of a tuna who couldnt tell his MAP from his TPS. The original spec was: Power FC, 700cc Sards, Nismo pump, 2860-5's, cams (Basically Poncam A's), Z32 AFM's and a half sorted oiling system. Thereabouts 430rwhp irrespective of what was done. So, yeah, very 1990's. I eventually got sick of it not being very refined and bought a Link G4 PNP with some 1000cc Bosch injectors. This was tuned badly and I put the car in the shed for a few years whilst I sulked and went and did other things. Ive come around to the idea of getting it going again so it has a new gearbox installed and some other minor things in the planning. So my questions are, variously (In the context of keeping the Link) What other sensors should I be running eg It has no wideband on it at the moment, nor fuel pressure. $? Is it worth chucking the old ignition system (ignitors etc) for new ignition coils? $2k? Cam/crank angle sensors? Can keep the aircon? $? Anything else? Sorry to launch another what should I do with my car thread but, you know, what should I do with my car? Random photo for historical context.
×
×
  • Create New...