Jump to content
SAU Community

bugger... failed EPA test by 4db


Recommended Posts

Yeah, not too happy about it, and i would certainly not say my exhaust is loud!!!!

I've got a HKS Hiper sitting in the garage to go on once i've got my new engine built, so it's gonna cost me a few $$$ to get the car sorted.

I don't know if i should get an extra muffler with flanges put into this current exhaust so that i can then take it out and fit a straight pipe. Which then means when my Hiper goes on i run the risk of having to get another muffler put on. OR should i have the extra muffler fitted to the Hiper and have that fitted to the car now? I'm gonna have flanges put on so that i can take it out and fit a straight pipe for the track :D

It's a pain in the ass. Do i fit the hiper and have the muffler fitted to that? or do i have the muffler fitted to this exhaust and have it tested with that?

Andrew

Link to comment
https://www.sau.com.au/forums/topic/24971-bugger-failed-epa-test-by-4db/
Share on other sites

yeah i have a single can, a resonator, a cat, and some tricky pipe splitting thing... i was sure i'd be under.

I'll just chuck the silencer in to get it tested and take it out once i've passed. Keep it so that next time i get done i know i'll pass.

My new exhaust is 3.5inches straight through so it's gonna be loud too

Pred666,

Mate I've been done 4 being too loud 'bout 3 times now and mine has the std exhaust system from engine to just before the rear axle (incl std cat, std resonator etc etc) with an aftermarket barrel muffler at the end. Got tested at 95dB......

oh you champion!!! how much to rent it?

the only bitch would be fitting it as i'm tipping it's not a simple task to fit an exhaust unless you have a hoist. And how would you go matching the flanges of the 3" cat to the stock exhaust?

GiJOr33:

Wouldn't rent it to you mate... you can borrow it though :)

I know the guy at Mr Muffler here in Epping, might see if we could scab his, car... lifting... thing, for a few minutes one saturday and change it over then or something...

As for the 3" Cat, I dont know... I have a stocker on my car right now, guess worst case scenario we take of my Cat back pipes, throw my cat on your car, and the 3" on mine (So I can use my car in the mean time) or something. I've also got one of those 'Straight thru' Cats (Whick is really just a straight piece of pipe the size of a Cat convertor), but that doesn't really help us here :) . I dunno, maybe someone else has a spare stock cat and could save us the trouble?

I know what it's like to be done for this stuff, so I don't mind helping out one bit. I guess when it comes down to it this is the sort of thing people join car clubs for in the first place... to help like minded people, or something. :)

Cheers

Mad... that would be crazy! :(

I've got another cat that came with the car, don't really know what it is as i haven't checked it out. But i have to have it done by next wednesday... so if ya free on saturday or sunday, i'm in! I tried to get a 2 week extension but they would only give me one. I'm on holidays from friday so i got plenty of time!

Thanks again

Andrew

I dont think they'll pass the car if it has a silencer in it. Ive heard that it has to be completely welded in, and not just bolted or tack welded. Only then will they pass the car with a silencer.

absolutely correct xRHETTx. You can't put in your silencer and get it tested... it has to be wielded otherwise the EPA testers will not, can not do the test. Those exhaust with the switch button silencers are not allowed also. If you got a straight through 3" from turbo back and want to quiet down the noise to exactly 90db, go down to Daalder Exhaust in BoxHill. They have created some 'Special Resonator' which will make your entire exhaust system to exact 90db. I know this doesnt sound rite as all cars are diff.. but hey hhehehe works for me :D

FYI

Mine just got tested yesterday and passed 85dB :)

I got cat back HKS Super Dragger, it has 1 small muffler and 1 resonator in the middle pipe.

However I have to change my blitz bov to std bov before the exhaust test done, as the tester said that after market bov will not pass EPA noise test.

geez... i thought the dragger was a loud exhaust too!!!

i was very suprised that i didn't pass... mine is hardly loud unless you are on full boost and almost in the red, in which case it really opens up and gives a good roar!. But under 5000rpm it's fine. And he revved my car to 4800rpm (apparently that's what the RB25 is to be tested at).

Also where did you get it tested at?

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

    • Hi all,   I’ve got the biggest lot of problems with my R33 GTS-T   It was a freshly rebuilt 25th anniversary RB25DET (plastic cas, neo cams) probably 6 years ago now   The engine was running so well but I fkd up badly and trusted someone I’d known for 10 years that was well known around Plazmaman for his welding and fab work. I added a lovely photo of some of his previous work. Not sure why my car was worked on by whoever did this shit     I’m normally someone who would never open myself up to something like this, I still can’t believe I did it. Trusting him literally fkd it all up for me. Everything has been a struggle, like it’s almost been 6 years that’s how much I’ve just on and off been trying to work it all out.    All I wanted was a car that danced down low, like full boost from around 3~3500rpm to redline, don’t really care what power it puts down (if it ever does) but I just wanted it to be quick to get on it.    He recommended the turbo to get, I picked Hypergear but he told me to get the front 4” with a T4 and 0.68 rear housing.    I was expecting all these beautiful welds, tidy fab work and paid for it to be ready to go to a tuner when I got it back.    I got a car back that was an absolute mess, I actually couldn’t believe it was my car anymore. I don’t think you could even call what he did welds, they’re disgusting.    So I stripped everything he touched off it and with every bolt I loosened it just got worse and worse.    I covered it and literally built and finished another car in the meantime but now it’s getting to the point where I really want my Skyline back.   Its a struggle because I paid him to do all this shit because I didn’t know how to and now I’ve had to try and figure it all out omg    Please excuse the bird shit horrible welds, I’ve got my show pony car and am so beyond dealing with this car I don’t even really care at this point.    If someone told me about what he did to my car I wouldn’t have believed them but it happened to me. It was unbelievable. He went missing, my car went missing, it came back missing parts, the straight af chassis rails bore the scars of being dragged up a trailer backwards, even the sandwich plate was bent. Everything was leaking and open to whatever fell into it, rounded off/ missing bolts, power steering oil and coolant everywhere, no gaskets, parts stolen off it, even managed to damage the sump pan.   Promised me he’d finish the car, knew what it meant to me, I paid him thousands and thousands just for him to trash it. He told me he was fully licensed and insured, come to find out he’d cancelled his ABN, so obviously no insurance. I had laid up insurance on the car and would’ve been covered but I was scared they would’ve written it off or because the business was no longer trading I’d still be liable.    He was supposed to:  New fully custom mild steam pipe exhaust manifold with turbo location moved from factory position to high forward mount. (I don’t know if it is a mild steam pipe, I’ve got a funny feeling the waste gate isn’t in a very good position and I don’t think the outlets off each cylinder are equal) 4” custom stainless steel dump with external gate (he re-plumbed it) Cut and shut OEM intake manifold with throttle reposition (I ended up doing the throttle reposition) Box in pod filter (left out) New 100cel catalytic converter (pretty sure it’s there but unsure if it’s 100cel) Front mount intercooler piping fabricated to suit (all smashed up and rusty holes where he was supposed to make it look standard where fmic piping passes through. I don’t even think my front bar is going to fit 🙄) Custom 5” intake pipe from pod to turbo (didn’t come with it so had to do something to make it work with the Z32 afm)   Engine: Full cylinder head service & machining  Brand new valves Precision upgraded spring kit Engine block honed New bearings  New piston rings  New ARP conrod bolt kit New ARP head studs Cometic head gasket VRS kit   ATR43SS2 ball bearing turbo 0.68 rear housing  Turbosmart 45mm external wastegate (got delivered to the fab bloke, I’ve got no idea what spring is in it, I’m assuming the one that came pre installed) Walbro 260 fuel pump  Nismo 740cc injectors (tested to 880) Spitfire coil packs GCG FMIC RB25DET manual 5 speed 4:11 rear diff   I’ve got an Apexi Power FC in it atm, I was hoping to just get it to operating temp to make sure everything was okay before towing to a tuner but it’s over-fuelling too much. I don’t think that’s going to happen so i think I’m going to get either a Link G4 or Haltech for it. What do you guys recommend? I can’t work out the power FC so just gonna give up on that one     It’s got an exhaust leak coming from somewhere I can’t see 🙄    The fuel pressure was steady but now it like drops from 40 to 20psi randomly (noticed this yesterday)    I’ll attach pics of the shit he put on my car and the engine bay now as it sits    I really just need some help, I need a tuner in Sydney I can trust, I’d like to be with the car while it’s being tuned if possible, I know it looks terrible but unfortunately I’ve just got to put up with it for now and fix the cosmetic stuff later   Do you guys think the manifolds are going to be okay? Or do I throw the exhaust manifold and try again?   I don’t even think these combinations are going to work tbh   I know everything I fitted was rated to be able to take at least 400kW but most rated higher    If you’ve gotten this far I really really appreciate it 🙏 I don’t mind if you trash me or the car, I made a rookie error and f**k I’ve paid for it. As you’ll see 🙄  
    • From everything I’ve heard you’ll be waiting a long time for  the parts to arrive 
    • Have you looked at the workshop manual?
    • Hmm. I've gotten pretty good outcomes from talking to them about things that I've had go wrong or ideas for improvement. Have had a lot to say about the R32 FUCAs, and they have sent out some replacement parts for those, gratis, on a couple of occasions. Mind you, I have bought a couple hundreds of $ of replacement rod ends for them too!
    • I have a r34 sedan 1999 manual converted need some help with my speedometer it only reads upto 98km and then stops currently still running the auto cluster any easy fixes no speedo drive is connected yet, if someone has a video for wiring up the manual speedo sensor with the auto cluster please send through 
×
×
  • Create New...