Jump to content
SAU Community

Recommended Posts

  • Replies 75
  • Created
  • Last Reply

Top Posters In This Topic

don't really have sound clips, but I've got a video of me goofing around with my old GTS on a motorkhana day.

http://video.google.com/videoplay?docid=-3954516175113564220

mods: fujitsubo mandrel bent stainless extractors and a 2.5" exhaust with a "straight thru" cat, black widow resonator and a magnaflow muffler.

  • 1 year later...

Okay just hear me out please

sorry to do this eug. im aware that this question may have been answered but i have been on sau since 8.30 pm till nowlooking for my answer and cant seem to find the one for the exhaust i want.

I like loud cars i mean loud 3 blocks away.

so on my na i was thinking 3"inch the whole way with a hiflow cat and 4 1/2 inch cannon

1. what type of noise will i get???

2. is it the way to go for loud sound?

3. will the hi flow cat make it louder?

i have a R34 25GT

Edited by Eug
added search tags in topic description

1. the type of noise will depend on the material used. i would guess that something light like titanium would give a metalic sharp sound, whereas something like mild steel will give a deep growl.

2. the muffler type; straight pipes, twin pipes, single cannon, etc.

3. no cat/gutted cat will make it louder, a cat will add to the muffling effect. regardless i'd say the effects of cat or no cat would be minimal. what you're after can be achieved via cat back.

what type of loud are you after? think about the metal's properties and density.

my suggestion, if you're not concerned with too much power loss; a 2.25" exhaust with a 4"/5" stainless steel/titanium exhaust.

i'll let the thread stay, on the condition that you alter the title and the sub title with appropriate headings and tags so others can find it for future reference :D

cheers

eug

1. the type of noise will depend on the material used. i would guess that something light like titanium would give a metalic sharp sound, whereas something like mild steel will give a deep growl.

2. the muffler type; straight pipes, twin pipes, single cannon, etc.

3. no cat/gutted cat will make it louder, a cat will add to the muffling effect. regardless i'd say the effects of cat or no cat would be minimal. what you're after can be achieved via cat back.

what type of loud are you after? think about the metal's properties and density.

my suggestion, if you're not concerned with too much power loss; a 2.25" exhaust with a 4"/5" stainless steel/titanium exhaust.

i'll let the thread stay, on the condition that you alter the title and the sub title with appropriate headings and tags so others can find it for future reference :D

cheers

eug

Cheers eug

ah to be honest the sound im searching for is something that is loud sounds mean. that can be heard from a fair distance lol. lets just say LOUD!!! will the 3 inch straight through with the 4.5 inch cannon deliver on that??? after you mentioning the metal diffrences id probably go mild steel. thanks buddy

with a 3 inch you'll loose far to much low end that you wouldn't be happy with it, you can acheive the sound your looking from a 2 1/2 inch cat back with no resonater and a straight threw muffler and a cannon.

I had this set-up for a week on my Na 33 a few years back and it only lasted on the car for a week for me because it was way to loud could be heard from 3 + streets away.

Also remember an na will always be way louder and have higher pressure out the exhaust as there is no turbo to restrict the flow and rob power from the exhaust heance quietening it,

Sizing is also important in na's as you need to keep better backpressure as with a slight bit more backpressure the exhaust will actually flow better, this is not the case in a turbo exhaust as you just want all your exhaust pressure kept in the manifold into the turbo and then you need the freest flowing exhaust you can get.

I think Cara on here has a 3" system on her 34 and it sounds tough as, although her car is used for a lot of dyno comp's so having a bigger system will help as she no doubt gained a bit of high end power you'll almost never use on the street, she will have lost some low end torque and for a street car you want as much torque as u can get :D

hope that helps

Cheers Jarrod

Cheers eug

ah to be honest the sound im searching for is something that is loud sounds mean. that can be heard from a fair distance lol. lets just say LOUD!!! will the 3 inch straight through with the 4.5 inch cannon deliver on that??? after you mentioning the metal diffrences id probably go mild steel. thanks buddy

Hi R34TRK,

My NA 33 had a 3" cat-back system on it when I bought it... it's a 3", mandrel bent stainless steel system going into 2x 3" cannons. Let's just say LOUD!!!! I frequently set off car alarms in the carpark at work, just by driving past at well under 3k RPM. I've gotta say though, I felt it was lacking a little down-low torque, so I've now got a 2.5" cat-back, but which goes into the same twin 3" cannons... sounds almost as loud, but much more low-down torque. It's not for everyone... my GF finds it a little too loud... but ah well! with the 3" -> 2x3", it used to drone like crazy... never really bothered me but most of my passengers got sick of it pretty quickly! Now the drone is much less... still there at certain RPM, but not too bad.

It's all up to the individual... I got EPA'd with my original exhaust... lol 90dB? pfft! no way! I got a 2.5" -> muffler -> 2.5" tip made up... that was bang on 90dB and it felt like my engine was missing compared to the old one!

Droning sux for passengers in a skyline as if you sit in the back your closer in the exhaust so its way louder.

Though i might also mention even after i changed my 2 1/2 inch system to a 2 1/4 system i had it tested and pulled 99DB which is 3 times louder autible noise than a 90Db exhaust system. you can make any exhaust size loud you just have to know what to and not to include on the system and how to make it flow, and exhaust shop should be able to make it up for you.

the only thing im scared of is that the fact everyone is telling me that i will loose way to much power.... i dont mind a bit but i still want the car to have some go. but then i think about the noise and how i want it loud.....

cara has a 3 inch and she hasnt said anything about way to much power loss

i have mates that have had 2.5 inch and it doesnt sound a whole lot diffrent, not what i expected any way thats why im thinking 3..

with a 3 inch you'll loose far to much low end that you wouldn't be happy with it, you can acheive the sound your looking from a 2 1/2 inch cat back with no resonater and a straight threw muffler and a cannon.

I had this set-up for a week on my Na 33 a few years back and it only lasted on the car for a week for me because it was way to loud could be heard from 3 + streets away.

Also remember an na will always be way louder and have higher pressure out the exhaust as there is no turbo to restrict the flow and rob power from the exhaust heance quietening it,

Sizing is also important in na's as you need to keep better backpressure as with a slight bit more backpressure the exhaust will actually flow better, this is not the case in a turbo exhaust as you just want all your exhaust pressure kept in the manifold into the turbo and then you need the freest flowing exhaust you can get.

I think Cara on here has a 3" system on her 34 and it sounds tough as, although her car is used for a lot of dyno comp's so having a bigger system will help as she no doubt gained a bit of high end power you'll almost never use on the street, she will have lost some low end torque and for a street car you want as much torque as u can get :(

hope that helps

Cheers Jarrod

cheers mate

but when it comes down to it a 3inch all the way is gonna be louder than a 2.5 inch yeh????

Edited by R34TRK
cheers mate

but when it comes down to it a 3inch all the way is gonna be louder than a 2.5 inch yeh????

louder, absolutly!!!! My 2.5" all the way is 90dB, legal, and sounds like it isn't even there compared to my old 3" to twin 3" cannons. VERY LOUD. There was a noticible low-down torque gain with the smaller exhaust... not that it was un-driveable or anything, but it felt like the power was shifted up the rev-range a bit too far for my likings.

louder, absolutly!!!! My 2.5" all the way is 90dB, legal, and sounds like it isn't even there compared to my old 3" to twin 3" cannons. VERY LOUD. There was a noticible low-down torque gain with the smaller exhaust... not that it was un-driveable or anything, but it felt like the power was shifted up the rev-range a bit too far for my likings.

welll im gonna give 3 inch a go see what happens.....

has any one on here got a N/A with 3 inch all the way and cannon

love to here it

thanks

I have a set of copy extractors, 2.5 inch mild steel exhaust, and a cannon of some sort on a RB20DE Cefiro. It's loud.

No loss of power.

I had to put in a hod dog type resonator though as it had a reverbaration at high RPM.

I have a set of copy extractors, 2.5 inch mild steel exhaust, and a cannon of some sort on a RB20DE Cefiro. It's loud.

No loss of power.

I had to put in a hod dog type resonator though as it had a reverbaration at high RPM.

2.5 inch is diff fromm 3 inch man

i want to see some one with N/a Running 3 inch through it

  • 2 weeks later...

Runnin a 3" Titanium Cat back w/straight pipe, easy fix for the droning is called volume on the stereo. I know I gained power from putting this exhaust on but I also have a pod filter and MSD Sport Compact Ignition box with Blaster coil, Iridium plugs and always keep cap and rotor fresh and also 8.5mm Super conductor wires. Car comes out Faster since the cat back was added. Oh yes it is loud as F*** But sounds so sweet.

Hows this, my old car 2.25 inch with a 4 and a half inch cannon.

drive by up to the speed limit ;) and then about 200m down the road double clutching shows you how loud mine was for it's size without compromising down low torque.

http://www.youtube.com/watch?v=Svf7hO7PjEo

So you can be loud AND have the peace of mind knowing that it is going to good use :)

pretty loud man... but wack on a turbo man.. u will get volume...and sound like a jet... instead of.

brrrrrrrrraaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbraaaaaaaaaaaaaaaaaaaaaaaaaaaaaabraaa

aaaaaaaaaaaaaaaaar

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

    • There is a way, but it's not with the same cars. You need to find the same vintage of car, that we had. Realistically, that was an affordable car with aftermarket parts around. So what people need to find is a car that had a decent base in its day, and can be modified. They're looking for a car year make of 2010 to 2015 really... Aus could have done it if Holden didn't fold as V8 commodores were cheap, and if Ford didn't get expensive thanks to COVID, then you could cheaply play with FG Barras. Realistically, those are just a bit heavier, four door skylines. I'm sure the US and UK have similar cars they could find.
    • Haha I do that.. thats when it chirps..The bit point for me is almost non-existent. Otherwise I stall it. But yes, in terms of performance, the clutch is solid af.
    • Greg speaks wisdom. These dirty old Datsuns are only value when they are cheap. When they are not cheap, there is no value. Sounds contradictory, but it's true. We are now 20 years past the hey day of modifying cheap 90s JDM cars for small amounts of money. This is a different world. If you are rich and can afford not to care about what is effectively wasting money on an old Datto shitter, then I have no reason to argue against it. But if you are wanting to experience what we all experienced back in 2005 (and I bought my car last century!) then there is no way to do it.
    • Short answer: No. Medium answer: No, because you still need to conjure the things out of thin air to bolt them to a NA to make it a NA+T. Long Answer: No - The things you need to conjure - meaning a turbo, intercooling, manifolds, exhaust, intake/manifold/piping, clutch, injectors, fuel pump, AFM (?), ECU + Wiring (woo, N/A loom fun) have to come from somewhere. You could have many scavenged these things from an OEM car that someone had upgraded from and use some of these. This will be cost prohibitive now, especially so in the USA. You'd probably pay the same for newer, upgraded components that are better than old OEM stuff from 25-30 years ago. None of these big ticket items are re-usable for the N/A car. Why not buy new and upgrade while you're there? The only real consideration is turbo and fuel sizing and determining whether you want to stay within the bounds of the OEM engine or get into rebuild territory. These limits ARE lower with a N/A motor and especially N/A gearbox at the starting point. And if you're gonna upgrade those then you may as well consider having them built to begin with. Because everyone here knows you're never far from that next engine rebuild once you start making the power you want... The cars you see on the internet and SAU etc have been built over decades. If you're really clued in... you would sell your US car to somebody for what you paid for it. You would then scour AU JDM pages or SAU and buy a car like Dose's on this forum with your powerful American Dollar. This will save you so much money in the long term. Importing it could be tricky. Or it might not because USA. I have long said the only reason 90's Japanese stuff took off was because a) Japanese people had Japanese cars so that is what they used b) Australians could import these cars to Australia with very minimal changes and use them on the road here c) Neither country had well-priced access to US or EU Sports Cars. I don't believe the JDM scene would have taken off in Australia at all if we had EU priced EU BMW M offerings, or more especially the AUS V8 Scene would never have existed if we had the multitude of US cars like Camaros, Mustangs, Corvettes at the prices you folks do. After all - Do the math. I would say put a V8 in your R34 and that's the smart way forward. It is. I did it. I know this from my own experience. But at that point there's no reason to simply not buy a C5 or C6? It would be simpler and easier and cheaper and bette-
    • Reading all this... hurts lol. I have an ENR34 5MT and I paid an inflated USA price for the car alone, had to do tons of preventative maintenance past that, and so I'm over $30K USD into the car already and haven't even touched power.  I wanted to +t it. Not even trying to make GTR numbers, I'd be happy with 250hp.  Can I get away with paying much less to make that happen?
×
×
  • Create New...