Jump to content
SAU Community

Recommended Posts

Hey just put a new 6 boost manifold on my rb20 an did have a cheap chinesse manifold on it an the car sounded deep an tuff as but now with the new manifold it sounds a bit like a hyundai note which is pissing me off.Only other thing ive done is mount the wastegate down near the bell housing.Im goin to hav to put another muffler on it to take out the ricey sound,anyone had similar issues? thanks running a gt35r an 45mm progate if that helps..

Link to comment
https://www.sau.com.au/forums/topic/270043-new-6-boost-manifold/
Share on other sites

Never mind the sound, what's the difference like on the road?

As for the sound you dont want to sound ricey, just took car for a spin then boost doesnt seem to come on earlier but it does a little more voilently,pulls real strong.It has made 402rwhp so ill put it bak on the dyno an see if there is any difference with the 6 boost.

Edited by blow thru
Have you spoken to Kyle about it?

Maybe you had an exhaust leak before so it sounded 'tough as' but now it's actually working properly it sounds 'normal'??

exactly what i was thinking

soon as i saw "chinese" manifold and a "deep note" i thought - crack/leak somewhere

Im goin to hav to put another muffler on it to take out the ricey sound,anyone had similar issues?

Sorry dude but I just have to point out the irony here...Isn't making a modification just to acheive a cosmetic outcome, 'rice' in itself...

Sorry dude but I just have to point out the irony here...Isn't making a modification just to acheive a cosmetic outcome, 'rice' in itself...

Hahahah

True, though i dont think thats entirely what hes doin.

I think what hes saying is that hes pissed that a expensive manifold sounds worse than the original cheaper one.

6boost manifolds that I have heard result in a more tuned pitchy note, sounds awesome. If you don't like it - give it to me :P

Mine certainly did, went from an Internally gated GT3540 on standard manifold to 50mm externally gated 6boost setup and the sound difference is amazing.

Screams rather like some of the old group A cars do.

Funny i had the same thing happen to me.

Cheap china manifold= tough RB sound.

Then put on a 6BOOST item and things quiet down a bit, i put this to the smoother runners and design of the 6BOOST manifold.

Then i put on a HKS 3.75inch exhaust, now it sounds tough again :P

http://www.youtube.com/watch?v=_PK__72sRIE...player_embedded

Definately not knocking Kyles manifold mate i tell ya well you guys no this is a work off art.I havnt had a chance to really go over the exhaust an check for any leaks but this can only be the cause,its hard to notice it at idle its only when at cruise under exceleration which leads to an exhaust leak somewhere.ill suss this out first thing in the morning.

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

    • Put a fuel pressure gauge on it. Replace the turbos. Probably completely separate issues.
    • What copper washer do you guys use on the bleeder bolts? The existing one I have I had no idea where to find it in a local store, I did buy some online but that are only 1mm thick whereas my old one is 2mm+ thick and when I put the new washer out and squeeze the top radiator hose I can hear a bit of air but not with the old one. Does this matter? The new one doesn't leak, but the inner diameter is a bit loose whereas the old one threads on the bolt.
    • Howdy all, after being out a few weeks ago on a spirited drive in my GTR I have 2 issues that oddly have appeared at the same time. Whilst accelerating quickly through the gears all of a sudden i’ve lost power at the top of third gear (below redline around 6000rpm) for no obvious reason.    From that point onwards the car has been running rich on idle, won’t really rev under load without a ton of black smoke and the odd backfire, and dying as a pull up to a set of lights unless I keep the revs up around 1500rpm. In addition when shutting down the car that same night (I was 10 minutes from home) I noticed one of the turbos was significantly noisy on wind down when shutting off the engine. After letting the car cool down overnight it starts up fine, although once it gets to temp the revs start to creep up and down, the exhaust is darker than it should be and it also sounds like it’s running rich (fat note) I’ve put a new set of plugs in it - no change, the old plugs all seemed OK with two of them being somewhat richer/fueled up than the other 3 with 1 being borderline. I’ve smoked tested the intake system via the front of the Turbos, found a split vacuum hose going to the factory boost gauge sender, which I have since replaced.  Also found another leak on the gasket coming off the rear turbo outlet, have also replaced this. After fixing both of these leaks - still have the running rich issue. I’ve also tried another pair of AFM’s - no change here After pulling off the front turbo intake pipes, there is obvious shaft play in the front turbo, which now hisses loudly on light revvs although I can’t see why this would make the car run funny even under idle. I’m curious to know why it’s running rich before I potentially replace/rebuild turbos. The car is completely stock <50,000kms  other than an exhaust. Oil and coolant are all clear. I haven’t bothered with coil packs as it looks like they won’t be the issue due to condition of the plugs. Any help appreciated as I cry myself to sleep!
    • No probs at all. I used to love trying to dig up obscure info for those in need where possible going back 20+ years on SAU.  I did have another look and couldn't come up with any closer match. I'm leaning towards those skirts in your first pic are custom fitments, cut down/extended or from another car entirely and modded to fit an R34 sedan. I would've thought someone in Japan had them and taken a photo at some stage over the last 2 decades but there's nothing. Someone out there must know surely.
×
×
  • Create New...