Jump to content
SAU Community

Recommended Posts

I’m fitting an rb25 turbo on my RB20 and am wondering what the best sounding outlet pipe is. I’ve looked at the tomei, but I’m not really looking at spending 300 usd for an outlet pipe. What else do you guys think? Also looking at downpipes aswell.

37 minutes ago, smart_garrett said:

I’m fitting an rb25 turbo on my RB20 and am wondering what the best sounding outlet pipe is. I’ve looked at the tomei, but I’m not really looking at spending 300 usd for an outlet pipe. What else do you guys think? Also looking at downpipes aswell.

Outlet pipes ( to intercooler?) don't make a sound. Find someone with an RB25DET and copy their set up with stock (second hand) gear. Yes get a three inch downpipe.

53 minutes ago, iruvyouskyrine said:

Oh you americans.

Doesn't matter what 'outlet pipe' you use, it's attached to an RB20 so going to sound good.

too right!

 

  • 9 months later...
On 1/31/2018 at 10:00 PM, niZmO_Man said:

But ...

o0480036014008616242.jpg

That's a R31house takoashi MAX manifold.... they are by far the nicest looking manifold for an RB and now long discontinued for the new version which is a direct replica of the gts-r manifold ? 

But yeah anyways...I have a gtsr manifold that's unfortunately been re-flanged and had a gate welded to it then removed and repaired at some stage....Cost me a packet too.

Would looks amazing if it wasn't that terrible chrome colour ?

Sidenote: My manifold sounds absolutely amazing but i cannot provide evidence as a truck crashed into the car the second day of driving it and now looking like its going to be written off :(

  • Sad 2
Would looks amazing if it wasn't that terrible chrome colour ?
Sidenote: My manifold sounds absolutely amazing but i cannot provide evidence as a truck crashed into the car the second day of driving it and now looking like its going to be written off [emoji20]


They're made from stainless just like the original gts-r takoashi and would discolour almost instantly with the first few drives and heat cycles. There's actually a picture somewhere I saw last week on the R31house owners blog of the ver3 test manifold after it was test fitted and ran for first time on the his R31 and it's turned a nice heat treated purple/brown/blue - ish colour...
  • 2 months later...
  • 3 weeks later...

Long time since I have been on SAU but I might be buying a new skyline.  Definitely  keen on a GTS-R manifold this time. The R31house takoashis are amazing. 

I noticed a fabricator in Australia is now making replica R31house takoashi style manifolds. The business is "speedtek". They have stainless versions on their Facebook page, and a steampipe version on  ebay.

Does anyone here know anything about these, and if they sound the same as the original GTS-R / R31house variants. The runner length and merge collector style is essential to the sound these manifolds make, so hopefully speedtek have those lengths correct. The stainless versions look perfect to me.

 

The good thing about a gts-r or takoashi  manifold is they  sound completely  different to any other turbo manifold, including equal length 6boost style ones... 

Some pics of these speedtek ones I have found are attached.

Here's my favourite video of a GTS-R manifolded car. Rb20, itbs, gtsr mani, pure madness. This guys youtube account is pure exhaust porn for anyone interested. 

https://www.youtube.com/watch?v=bhw8Tpa78wg

 

speedtek SP.jpg

speedtek SS.jpg

speedtek SS2.jpg

The manifolds look decent but speedtek don't have a good rep for various reasons. Some to do with quality and some to do with the dodgey guy that runs it. Can't remember the details about him right now but im sure some Google investigating will uncover it.

  • Like 1
19 hours ago, admS15 said:

The manifolds look decent but speedtek don't have a good rep for various reasons. Some to do with quality and some to do with the dodgey guy that runs it. Can't remember the details about him right now but im sure some Google investigating will uncover it.

Yep, some googling has revealed some pretty unsavoury stuff. Surely they  can't be that hard to make though? It's strange no one else has ever attempted them (excl  R31house). 

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

    • Thanks for that, I'll check it all out. I can always do the brakes last anyway if its a problem.  The 16's are super cool, if they do fit I'll cruise around with them for a bit.  
    • Well, that's kinda the point. The calipers might interfere with the inside of the barrels 16" rims are only about 14" inside the barrels, which is ~350mm, and 334mm rotors only leave about 8mm outboard for the caliper before you get to 350, And.... that;s not gunna be enough. If the rims have a larger ID than that, you might sneak it in. I'd be putting a measuring stick inside the wheel and eyeballing the extra required for the caliper outboard of the rotor before committing to bolting it all on.
    • OK, so again it has been a bit of a break but it was around researching what had been done since I didn't have access to Neil's records and not everything is obvious without pulling stuff apart. Happily the guy who assembled the engine had kept reasonable records, so we now know the final spec is: Bottom end: Standard block and crank Ross 86.5mm forgies, 9:1 compression Spool forged rods Standard main bolts Oil pump Spool billet gears in standard housing Aeroflow extended and baffled sump Head Freshly rebuilt standard head with new 80lb valve springs Mild porting/port match Head oil feed restrictor VCT disabled Tighe 805C reground cams (255 duration, 8.93 lift)  Adjustable cam gears on inlet/exhaust Standard head bolts, gasket not confirmed but assumed MLS External 555cc Nismo injectors Z32 AFM Bosch 023 Intank fuel pump Garret 2871 (factory housings and manifold) Hypertune FFP plenum with standard throttle   Time to book in a trip to Unigroup
    • I forgot about my shiny new plates!
    • Well, apparently they do fit, however this wont be a problem if not because the car will be stationary while i do the suspension work. I was just going to use the 16's to roll the old girl around if I needed to. I just need to get the E90 back on the road first. Yes! I'm a believer! 🙌 So, I contacted them because the site kinda sucks and I was really confused about what I'd need. They put together a package for me and because I was spraying all the seat surfaces and not doing spot fixes I decided not to send them a headrest to colour match, I just used their colour on file (and it was spot on).  I got some heavy duty cleaner, 1L of colour, a small bottle of dye hardener and a small bottle of the dye top coat. I also got a spray gun as I needed a larger nozzle than the gun I had and it was only $40 extra. From memory the total was ~$450 ish. Its not cheap but the result is awesome. They did add repair bits and pieces to the quote originally and the cost came down significantly when I said I didn't need any repair products. I did it over a weekend. The only issues I had were my own; I forgot to mix the hardener into the dye two coats but I had enough dye for 2 more coats with the hardener. I also just used up all the dye because why not and i rushed the last coat which gave me some runs. Thankfully the runs are under the headrests. The gun pattern wasn't great, very round and would have been better if it was a line. It made it a little tricky to get consistent coverage and I think having done the extra coats probably helped conceal any coverage issues. I contacted them again a few months later so I could get our X5 done (who the f**k thought white leather was a good idea for a family car?!) and they said they had some training to do in Sydney and I could get a reduced rate on the leather fix in the X5 if I let them demo their product on our car. So I agreed. When I took Bec in the E39 to pick it up, I showed them the job I'd done in my car and they were all (students included) really impressed. Note that they said the runs I created could be fixed easily at the time with a brush or an air compressor gun. So, now with the two cars done I can absolutely recommend Colourlock.  I'll take pics of both interiors and create a new thread.
×
×
  • Create New...