Jump to content
SAU Community

Exhuast To Loud

Oo_oO

By Oo_oO,
in General Maintenance

 Share

Recommended Posts

Oo_oO Enthusiast

Oo_oO

Posted
Posted

Any who i got pulled over by the local cop tonight after finshing work and was told my exhuast was to loud because it was not stock and that i have 7 days to make it quiter. All i have is a 3inch turbo back with a 3inch high flow cat to a cannon with a 4.5inch dump tip is their a way to tell if my exhuast is actually to loud.

cheers james

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/
Share on other sites
black_gtst Proficient

black_gtst

Posted
Posted

where are you located mate? in vic we have EPA testing centres, usually exhaust shops with a lisence. they do a DB reading on your exhaust tip at around 4000 rpm then fill out report sheet and forward on to EPA

brett

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3824110
Share on other sites
Oo_oO Enthusiast

Oo_oO

Posted
  • Author
Posted

Whoops should have said that i was in queensland. Another question can the cop just give me fine casue he thinks its to loud or does he have to have proof.

casue he told me that becasue it was not stock their for it was to loud. and i said what the f**k kinda reason is that. the next words out of his mouth was if you wanna get smart with me that will be a $240. the thing that shit me the most off was that i dont think the car is anywere near being to loud

cheers james

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3824127
Share on other sites
tm_r33 Experienced

tm_r33

Posted
Posted

you get on you knees behind the car with your ear sealed over the end of your exhaust and get your m8 to rev it to limiter. then the doctor can calculate the exhaust noise level by substitution the damage factor of your ear into a simple mathematical equation.

hahaha excuse me amusing my self

take it in and get a dB test m8. wont cost u much.

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3825271
Share on other sites
The BOP Enthusiast

The BOP

Posted
Posted

Hey mate sound like you got the done over to what I've heard I think the max Db level is 94Db @ 4000-4500

But if you just what to do a quick fix get some chicken wire and jam it down the exhaust that will drop the noise down a shit load

It's not a full time fix but something to get you passed the epa :blush:

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3825559
Share on other sites
Oo_oO Enthusiast

Oo_oO

Posted
  • Author
Posted
Hey mate sound like you got the done over to what I've heard I think the max Db level is 94Db @ 4000-4500

But if you just what to do a quick fix get some chicken wire and jam it down the exhaust that will drop the noise down a shit load

It's not a full time fix but something to get you passed the epa :blush:

The thing that shits me off the most is i dont think it is anywhere near 94db and the amount of shit heap feral utes that run around that are far louder than mine. So im of to toowomba on wednesday to get it tested so i dont have to take it back to stock and maybe i should stop driving past his house at night after visting the gf

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3825578
Share on other sites
Duncan Grand Master

Duncan

Posted
Posted

seriously mate - a 3" turbo back exhaust with high flow cat and those crappy cannon mufflers will be very loud. Get it checked independantly if you like but it is very unlikely to be legal. Just because lots of people do it doesn't mean its legal.

Easiest thing to do is put a standard exhaust on it for the test. Or permanently if you are worried about being caught again

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3825690
Share on other sites
Strik3r Experienced

Strik3r

Posted
Posted

i'd still say it'd be under 90db.. a 2ltr 6 with a 3" exhaust isn't gonna be making that much noise. once you have your exhaust reading, keep the report in your car in case you get pulled over again. Just remember, the way you act will more than likely determine the outcome in an encounter with the police.. many (though not all) police officers are reasonable people. My old car had a similar exhaust setup and was well under 90db, so fingers crossed you wont have a problem. gl !

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3825939
Share on other sites
Strik3r Experienced

Strik3r

Posted
Posted

correct me if i'm wrong, but the last time i was reading the noise rules, the rule was 90db @ half of the vehicles redline.. in a 33 that should be 3500... but that was for qld.. not sure if its different down in vic.

Link to comment
https://www.sau.com.au/forums/topic/216537-exhuast-to-loud/#findComment-3827165
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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • MBS206
      Mistakes were made, my R34 Story

      By MBS206 · Posted

      In a few years from now, you'll regret that. It'll eat away at you, knowing the truth of the ugly hiding beneath the beautiful exterior... 😛
    • joshuaho96
      R32 GTR - Where to begin

      By joshuaho96 · Posted

      I don't think the G2 profile is particularly dangerous for the engine per se, more just are you actually ok with the turbo lag trade-offs? If the answer is yes then go for it. I personally don't think I'd be ok with it because I spend so much time at lower RPMs and I really enjoy the feeling of being able to stay in 5th gear on the highway and just roll into the throttle to get boost. Or staying in 3rd gear on "gentle canyon cruises" without feeling the turbo lag too badly. The 525 pump should be able to run flat out on factory lines but I would bet the pressure drop from pump to regulator is quite impressive. I don't know how much it would be exactly but I've seen figures like 30 psi thrown around.
    • Murray_Calavera
      R32 GTR - Where to begin

      By Murray_Calavera · Posted

      It's interesting seeing everyone talk about what level of risk they are happy to tolerate.  Building a GTR always has a level of risk, you could be that lucky guy that drops 20k on the engine build alone and still has the thing go pop on the dyno. Life is fun like that.  The way I see it, the thing is a toy to be enjoyed. I'd be happy to turn up the power on stock motor and limit the risk with sensible tuning and engine protection. If it still goes pop, it is what it is. The car isn't a daily driver so it can happily sit while a plan is made to sort it out.  Given this thing will be a street car only, I really feel it's worth the (relatively small if managed well) risk to turn the power up to around 350KW on e85.  I don't think anyone getting into the skyline game now is doing it out of logic. Surely it is a purely emotional decision so I'm not sure how important it is to think about the engine build logically. The heart wants what it wants.  @joshuaho96 little note for Josh, I run my 525 pump flat out all the time and through the factory lines without any issues. (excluding the melting connectors, that's sorted now. we'll pretend it never happened lol)
    • joshuaho96
      R32 GTR - Where to begin

      By joshuaho96 · Posted

      But the Nexus S3 is very expensive and won't be as purpose-built for the application as a separate electronic boost controller :^) More seriously my pet issue here would be that the Walbro 525 running at 100% duty cycle is going to require more FPR than the stock setup can handle. I'm also pretty sure from what I've seen elsewhere you might want to slow down the pump regardless unless you're going to come up with some way of upsizing the fuel lines coming from the fuel tank. Factory 8mm fuel line doesn't actually flow very much if you want to keep pressure drop down between the fuel pump outlet and FPR. If you really want to "keep it simple" I would run only as much pump as you need and source a fuel pump controller to slow down the pump in the vain hope of being able to run stock-style FPRs which are pretty dinky. Or just use the HICAS lines and it should be mostly fine. OP should also really think hard about what profile they'd want out of the turbo. My pet choice here would be the G1 profile rather than anything higher power but YMMV. I already think ~stock turbo lag is pretty bad so I don't want to make it worse. In "gentle canyon cruising" I found that I spent a lot of time around 4-4.5k RPM. I also recommend DIYing labor if you're detail-oriented enough. Costs are high for labor + if you do it yourself you can be your own quality control.
    • Kinkstaah
      R32 GTR - Where to begin

      By Kinkstaah · Posted

      GTSBoy is again on the money. My actual advice? Sell the car. (really). For what it's worth as is, you can sidegrade into something much better. If you care about function then this is the actual move. If you want a Skyline to perform, set aside about $100K to do it. This is NOT a typo. You will see right away these are two very different mindsets. Realistically we're talking full restomod for any Skyline still kicking around. Have an honest think about which one you are.. and what you want to do, and how much you want to invest in this (with no return).
×
×
  • Create New...