Jump to content
SAU Community

Dump Pipe & Front Pipe

r32matt

By r32matt,
in Engines & Forced Induction

 Share

Recommended Posts

r32matt Collaborator

r32matt

Posted
Posted

Hi,

Im looking at buying a dump pipe and front pipe for my RB20DET. Im running a R34 turbo and was wondering which system would be best. I can either get the seperate dump and front pipe or the the dump pipe and front pipe in one. Buying them seperate is alot more expensive but I was wondering if it would be worth it? I was also wondering how much the boost will raise once i put the dump pipe on?

Thanks

Matt

post-28585-1154565056.jpg

post-28585-1154565069.jpg

Link to comment
https://www.sau.com.au/forums/topic/128668-dump-pipe-front-pipe/
Share on other sites
xRHETTx Mentor

xRHETTx

Posted
Posted

Check out BATMBL on this forum. His stuff is good, with split dump/front pipes available. But i'm not sure how you will go with havig an R34 turbo on an RB20, you might have to make some modifications.

clakka Collaborator

clakka

Posted
Posted

Mate just go the front and dump pipe in one because you won't need a screamer pipe (the one sold seperate) unless you are shooting for/have crazy horsepower...plus they are illegal and you will cop a massive fine and a nice yellow canary for the screamer.

I am getting the 2 together and they say you can raise it by about 2-4 psi but I would still be cautious if you don't have a FMIC or anything else...

clakka Collaborator

clakka

Posted
Posted

Sorry mate, thought I could be wrong, but have been told by a mechanic that that was a screamer...might not go to that mechanic again then hey...

However, frost is right you would need to get a front pipe fabricated and would probable cost a fair bit

Bliksem Veteran

Bliksem

Posted
Posted

Screamer is when the wastegate gasses are dumped straight to the atmosphere (ie the wastegate pipe doesnt plumb back in)

I would buy one of BATMBL's split pipes. He has a group buy running at the moment so just get one of those. If the R34 turbo bolted up to the stock R32 dump, then I'd say BATMBL's dump/front pipe should work ok (check with him first)

Munna1 Proficient

Munna1

Posted
Posted
Hi,

Im looking at buying a dump pipe and front pipe for my RB20DET. Im running a R34 turbo and was wondering which system would be best. I can either get the seperate dump and front pipe or the the dump pipe and front pipe in one. Buying them seperate is alot more expensive but I was wondering if it would be worth it? I was also wondering how much the boost will raise once i put the dump pipe on?

Thanks

Matt

The first one is certainly your best choice out of the two displayed. The separation of the pipes in the second one is not long enough this will cause too much turbulence where the pipes meet. Split dumps are good but there needs to be at least 30cm of separation before the pipes join.

The BATMBL split dump/front pipe would be a better option than the two displayed.

Cheers

r32matt Collaborator

r32matt

Posted
  • Author
Posted

Thanks guys,

Yeah I will get the Dump pipe and Front pipe in 1. Hopefully I will get a 2psi boost or more. Will the standard CAT be a problem? I wanna get a hi-flow but cant afford it at the moment, any cheap way of making my standard one hi flow? Im running 10psi at the moment which is standard. Will the boost be stable when running at 12psi or more? or should i put on my boost controller? (Turbotech Manual Boost controller).

Im running:

FMIC

R34 Turbo

K&N Air Filter

3 and a half inch form cat back

Lighten Flywheel

Extreme Clutch

Thanks

RANDY Veteran

RANDY

Posted
Posted

lol... well you have a few defectable items there already, so in theory you could just completely remove all the honeycomb from the cat, but it's illegal and I wouldn't suggest it for an onroad car.

Better off saving for an xforce 3" large body cat. They're about $300 from JustJap, and have the cat sensor thread in them already.

mad082 Grand Master

mad082

Posted
Posted
lol... well you have a few defectable items there already, so in theory you could just completely remove all the honeycomb from the cat, but it's illegal and I wouldn't suggest it for an onroad car.

Better off saving for an xforce 3" large body cat. They're about $300 from JustJap, and have the cat sensor thread in them already.

but the fine for a hollow cat is a few thousand dollars more than the fine for the rest of the defects. i got my x-force cat for $175 off ebay. and i agree with kennedy that a highflow cat will give a bigger power gain than a front/dump pipe if the stock cat is still there.

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

    • Waders360
      M35 Brake caliper replacement

      By Waders360 · Posted

      Hi from Canada, Both of my calipers are starting to fail. My car is a 2005 M35 Stagea ARX and I can't seem to find any parts or any cross reference caliper that would fit my car. Is there a company or a similar caliper that would fit and I could replace the OEM one. Or if anyone knows where I can find a new OEM. Any help is very appreciated. Let me know!
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Maf is a question mark but TPS  I have set at 0.47, the fact that I’m getting proper voltage range out of it with the key on leads me to believe it’s functioning properly. I’m getting proper voltages on basically everything. I still need to look up voltage ranges for z32 maf and test that 
    • 25zenki
      S1 rb25/s14 starting problem

      By 25zenki · Posted

      Honestly no not at all, but it’s a very basic tune, it’s stock injectors q45 tps and z32 maf. Other than that it’s a completely stock base map. The file is from nistune and from my understanding if it was tune related I would be able to unplug maf and tps and it would still start even if it was a really shitty start. I have tried starting it with coolant temp, maf, and tps unplugged none of those 3 togethor or individually changes anything 
    • Matt Z
      SAU NSW - Bathurst Run 2025

      By Matt Z · Posted

      🏆 Skyline Supremacy Meets Mount Panorama Magic 🏆 Join SAU NSW as we take the long way to Bathurst, the home of GTR greatness. Saturday 30th August 2025 7:00AM Meeting Hanna Park North Richmond 7:30AM Departure Cruise Via Bells of Line Road 9:00AM Arrival to Stop 1: Golden Poplars Meadow Flat 9:45AM Arrival to Final Destination: Mount Panorama Motor Racing Circuit Meet Location: Hanna Park North Richmond Stop 1: Golden Poplars Meadow Flat Final Destination: Mount Panorama Motor Racing Circuit   *Disclaimer* There will be a lead and follow car so no one should get lost. If you would like to attend or bring others along please put your name down and a +1 as numbers will be needed prior! This is NOT a race and we will all be adhering to all road rules. If this is what you want please come to one of our many track days. This is an official SAU:NSW event and will be run under a CAMS permit. One of the things that really sets our club apart is our commitment to being true enthusiasts. When on normal roads we strive to maintain good relations with the authorities as well as the public in general. When attending one of Skylines Australia NSW events please try to: • Be aware of surrounding environment and act accordingly. • Drive courteously on the state’s roads as a true enthusiast should. • Understand how important it is to maintain the good name of SAU NSW and thus, treat others accordingly. • Any misbehavior will not be tolerated and you will be asked to leave.
    • soviet_merlin
      My BMW E39 528i touring

      By soviet_merlin · Posted

      What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day   Highway gets as low as 10l/100km on my end so I'm not as worried about it being a mechanical issue. More likely just the tune on the haltech.
×
×
  • Create New...