Jump to content
SAU Community

Twin Scroll Internal Gate Turbo Options

ARTZ

By ARTZ,
in Engines & Forced Induction

 Share

Recommended Posts

ARTZ Grand Master

ARTZ

Posted
  • Author
Posted

cheers Jas...

i know Stao has been making Highflow EVO turbos as well...maybe its an option

what about this?

http://shopping.kinugawaturbo.com/kinugawaturbohyundaigenesistd05h16g300ps-4-3-1-1.aspx

or

http://shopping.kinugawaturbo.com/kinugawaturbohyundaigenesistd05h16g300ps-4-3-1.aspx

whats the difference is between 10.5 and 11.5 trim I assume the 11.5 is a bigger exhaust housing.. looking at the reverse scroll of the evo housing itwould make for much more effective fitment

is turbine housing going to flow a 2.5lt though?

basically my old turbo with a twin scroll rear....lol

or this big huffer for the lols.... :D

http://shopping.kinugawaturbo.com/kinugawa4turbochargergt3582withar117twinentrydividedt4housing600p.aspx

  • Replies 88
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

GTScotT
GTScotT

Moving up? Could be seen as moving down. Those who believe material objects determine social hierarchy sit on a lower rung in my books. C63s appeal to those people, and their cardboard cut out frien

ARTZ
ARTZ

Ok so my new fabricator isn't working out as planned .

AngryRB
AngryRB

why mess around with twin scrolls, just drop some cubes and a decent turbo in there!

Posted Images

ARTZ Grand Master

ARTZ

Posted
  • Author
Posted

Garret have a great range for the GT30's now, here are a few new external ones I saw recently... Do it Artz.

yeah I saw those...this plus GTX turbos with twin 40mm gates could be good....getting pricey though and you know I'm a poor kent..

the evo turbo looks like my best option for what i want so far...

GTScotT Grand Master

GTScotT

Posted
Posted

10.5T and 11.5T refer to the cm2 area of the turbine housing.

For reference a 12cm2 is roughly .82, so the 11.5 should be nice on your JZ with a healthy turbine.

The 10.5 is what is used OEM in evo's 5, 6, 8MR and 9. All other twin scroll models use a 9cm2 (9T)

GTScotT Grand Master

GTScotT

Posted
Posted

My emo7 had a 10.5, unless it had been changed at some stage? I doubt it, as the car was stock as a rock.

Had been changed.

Unless its an RS, then absolutely everything about the car was an option.

GTScotT Grand Master

GTScotT

Posted
Posted

10.5T and 11.5T refer to the cm2 area of the turbine housing.

For reference a 12cm2 is roughly .82, so the 11.5 should be nice on your JZ with a healthy turbine.

The 10.5 is what is used OEM in evo's 5, 6, 8MR and 9. All other twin scroll models use a 9cm2 (9T) Evo 4s had a 9T while 7s and 8s a 9.8T

just need to fix my own post, realised i had a memory lapse.

discopotato03 Grand Master

discopotato03

Posted
Posted

Evo 4 was the first one with the engine turned around and a reverse rotation twin scroll turbine housing , they used the smallest or 9 cm housing . 5 had from memory an optional 10.5 for the RS can't remember other variants . AFAIK 6s all used the 10.5cm housing even the TMEs with the smaller 15GK compressor wheel . The larger and heavier Cedia based 7and some 8s used a slightly smaller 9.8cm turbine house to get back some of the squirt the 4g63T lost with tightening emissions legislation in 2001 . From memory 8MRs had the 10.5 standard as did most 9s which all had inlet VCT to pull the bottom end up .

There are aftermarket 11.5 housings which works well on std turbos with exhaust upgrades . The 8s and 9 had a revised version of the 10.5cm turbine housing using a single flap and mirror imaged D shaped outlets like the TSIW EFR housings . The early ones had two holes and two flaps and most have probably cracked now anyway .

So the story goes the Evo turbos were the closest production turbos got to being a true competition unit especially the small comp wheel types for restricted rally engines anyway . Not exactly a TR30R but I don't think any other manufacturer got as close - for Grp A rally anyway .

One 7 I know of goes pretty well with an 11.5 housing on a bog stock turbo . On a 9 spec turbo with the larger comp housing and diffuser it should have gone better . The best overall was supposed to be the second series 9RS turbos with the Titanium Aluminide turbine and the super back or tulip shaped if you like magnesium compressor wheel . The early version had a flat backed comp wheel and these can lunch themselves if leaned on too hard .

The TiAL turbine is said to be boost limited and if you overdo it the wheel separates from the shaft destroying itself . These 9RS turbos are supposed to boost 3-500 revs sooner than a conventional 9 units and its possible the 11.5cm turbine housing puts that back near standard but with less exhaust restriction .

A .

Sub Boy32 Rising Star

Sub Boy32

Posted
Posted

Buy the EFR!

My 8374 .92a/r is the best engine part I've ever bought!

Fantastic response, great top end power, big torque curve.......and more response than the dyno plots show by far.

  • Like 1
cobrAA Mentor

cobrAA

Posted
Posted

Buy the EFR!

My 8374 .92a/r is the best engine part I've ever bought!

Fantastic response, great top end power, big torque curve.......and more response than the dyno plots show by far.

have you fixed your boost creep issue with the internal wastegate ?

ARTZ Grand Master

ARTZ

Posted
  • Author
Posted

haha bolt on kit...nice!....still not twin scroll though and not sure i like the design of that manifold..def seems to work though..

anyway have found hiflow ct12s for around 1500, good for 300kws...so have given up on the twin scroll idea, still think it could work well though..

I'm just going to flog the stockies till they blow or I tire of them :P

Tonba Rising Star

Tonba

Posted
Posted

don't mess around with the Evo turbo chargers. It will simply choke your engine. The turbine housings are too small.

Just grab yourself an EFR turbocharger, and live with amazing boost response, and fantastic power.

scotty nm35 Grand Master

scotty nm35

Posted
Posted

I don't think you realise how little a true twin scroll actually improves response compared to a single Artz. Some think it is the same as simply running a smaller housing. I can't say I have tried one myself, but it's a lot of work for little gain...

There would be more response gain going to an EFR Ti wheel turbo imo.

ARTZ Grand Master

ARTZ

Posted
  • Author
Posted

yep.. so use the Efr turbo with twin scroll, its not going to be any worse is it....!

how could it not work... What about Owen...did the twin scroll gtx3076...you telling me that didn't work?..problem.with the smaller housing is you are sacrificing top end, while a twin scroll while you can have you cake and eat it too...

And making a twin scroll manifold is no harder than making the manifold in that eBay advert...it would just merge a little differently into a t3 or t4 twin flange instead of merging into single pipe

Its not alot of extra work at all..

Anyway dont worry, im not building it so you won't have to make me any whacky manifolds...was just an idea, I still think it's a good one

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

    • GTSBoy
      Best place to order Authetic R32 Parts in Japan

      By GTSBoy · Posted

      I don't. I mean, mine's not a GTR, but it is a 32 with a lot of GTR stuff on it. But regardless, I typically buy from local suppliers. Getting stuff from Japan is seldom worth the pain. Buying from RHDJapan usually ends up in the final total of your basket being about double what you thought it would be, after all the bullshit fees and such are added on.
    • GTSBoy
      Ethanol Content Sensor - Always at 11%?

      By GTSBoy · Posted

      The hydrocarbon component of E10 can be shittier, and is in fact, shittier, than that used in normal 91RON fuel. That's because the octane boost provided by the ethanol allows them to use stuff that doesn't make the grade without the help. The 1c/L saving typically available on E10 is going to be massively overridden by the increased consumption caused by the ethanol and the crappier HC (ie the HCs will be less dense, meaning that there will definitely be less energy per unit volume than for more dense HCs). That is one of the reasons why P98 will return better fuel consumption than 91 does, even with the ignition timing completely fixed. There is more energy per unit volume because the HCs used in 98 are higher density than in the lawnmower fuel.
    • GTSBoy
      Blue slip

      By GTSBoy · Posted

      No, I'd suggest that that is the checklist for pneumatic/hydraulic adjustable systems. I would say, based on my years of reading and complying with Australian Standards and similar regulations, that the narrow interpretation of Clause 3.2 b would be the preferred/expected/intended one, by the author, and those using the standard. Wishful thinking need not apply.
    • GTSBoy
      Blue slip

      By GTSBoy · Posted

      Yes they do. For some maybe. But for those used the most by abusers, ie Skylines, the numbers are known. The stock eyebrow height for R32/3 Skylines is about 365/375mm or thereabouts. The minimum such heights are recorded in adjacent columns in the database.
    • soviet_merlin
      Ethanol Content Sensor - Always at 11%?

      By soviet_merlin · Posted

      Hmmm, interesting. Makes me wonder whether there is bias as well. It's the cheapest fuel, so it is used for all kinds of ill-maintained shitboxes which are bound to have issues regardless. Nicer cars tend to require higher octane rated fuel and can't use it anyway. FWIW, the official NSW E10 facts page is decent. 
×
×
  • Create New...