Twin Scroll Internal Gate Turbo Options

[ARTZ]

Anybody know of any?

I know borg warner do them at over 2k a pop though i am wondering if there is any other options..

[zebra]

Factory/bolt on EVO turbos

plenty of those available as a bolt on upgrade. would need a manifold built to suit

This better be for the 1J cressy?!?!!

[ARTZ]

yeah for the 1jz....figure if i can merge the stock manifolds into a twin scrolll should yield some decent results in a tidy package...

heaps of external gate options but trying to keep it simple for packaging sake...something i can mount low under a stock looking heat shield would be nice...

I did think of the EVO turbo actually, Think it could work ok?

[Count Grantleyish]

Evo turbos are reverse cycle?

Or I'm wrong?

[zebra]

Not by joining the two factory manifolds...ive seen nothing but rubbish results doing it that way.

Won't be atrue twin scroll anyway.

I'd either have a log manifold made up, or if you want it standard looking. Either find a hks t3g setup (good luck) or have stao rebuild the ct12a's

[zebra]

Or. Adapter plate and an aftermarket 2jz cast manifold. .but they are usually t4 open

[ARTZ]

..it will be true twin scroll if merged properly....3 cylinders into each scroll

have seen twin ct12 results and they aren't flash...though stock they do make quite a bit of power...but they are pricey.. 1000 each for hiflows...so theres 2 k that would buy me a 7670 that could make 400kws..whether or not this would be possible with those stock manifolds I don't know..but if 400kws can be pushed through an RB log I dont see why its not plausible.

[Count Grantleyish]

Just remembered Subaru does twin scroll IW on late model STi's

VF42 or something.

[zebra]

..it will be true twin scroll if merged properly....3 cylinders into each scroll

True but 3 cylinders will be firing through the worlds worst turbo manifolds in existence. ...they are laughable...if you dont believe me pull them off and have a look.

One result that stands out is a 1j manual soarer with a gt30..peak boost 20psi at 5500rpm or later and made 230rwkws and just would not take anymore than a few degrees timing...there was no doubt other issues..but still...I will happily enjoy my etm manifold when it arrives

[ARTZ]

ahh...ok..haven't seen many results, just read somewhere that they work ok....I understand they do look like pretty useless little manifolds

[zebra]

Having said all that, I have seen a full weight JZZ30 auto (standard converter) run mid 11's on the factory ct12'a and a good tune

in a cressy that is 300kgs lighter, It would be a weapon

[ARTZ]

woah!!! didnt realize a JZZ30 was that heavy...

theres one cressida running 11s on stock turbs...10s with nos....hes selling most of his setup at the moment actually....if only i had some play cash

I will be sticking with the stockies for a while anyway ,probably just try tune them for e85.....twin scroll thing was just an idea running through my head...

[zebra]

get a good dump pipe

makes a huge difference

[ARTZ]

get a good dump pipe

makes a huge difference

haha, yeah thats what he was selling...I'll get Scotty to knock me one up later..

that and i have some 750cc injectors and Eflex sensor...assuming my old tin tank isn't full of rust...

was about the only mods i have planned for the near future...

[Dose Pipe Sutututu]

food for thought...?

similar to your old setup.. still cheaper than a BW turbo too

http://www.s2ki.com/s2000/topic/1004201-solution-for-wastegate-and-twin-scroll-top-mount/

[ARTZ]

yeah that idea was considered, i also considered twin gates off the j-pipe as well into a twin scroll tdo6h ...but with both its too messy and too much work It would be easier and more beneficial to go with a proper manifold...

a simple J pipe into twin scroll IG turbo is the only option I am willing to entertain, that way if its a flop I could easy swap to better manifold and keep the turbo

[Dose Pipe Sutututu]

or just get a BW.. it's worth as much as the car & motor LOL

[ARTZ]

Probably has better resale too.

[Dose Pipe Sutututu]

I would have loved a BW turbo & full race manifold too.. but when both items cost as much as your car x2.. it's a stupid investment lol

[Piggaz]

I would have loved a BW turbo & full race manifold too.. but when both items cost as much as your car x2.. it's a stupid investment lol

Buy a more expensive car. Problem solved