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Hypergear Turbochargers and High flow Services Development thread

hypergear

By hypergear,
in Forced Induction Performance

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Lithium
Lithium

I was reading through the thread and was going to weigh in anyway, though looks like you're very much on the page I am reading from - so I'll +1 with with a bit more anecdotal evidence to support it

hypergear
hypergear

The ATR28SS15 would be a perfect turbo for your application. I didn't look into some thing even smaller as it doesn't make that much of a difference in response but did loses quite a lot of power. I'

Dose Pipe Sutututu
Dose Pipe Sutututu

^ lol... maybe I'll use a 3" intake pipe and add in more bends.. that usually gets the suuuuuuuuuuuuuuuutuuututuutut going LOL. Anyhow, some real world facts to back up the results.. errbody likes ti

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adam999111 Enthusiast

adam999111

Posted
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Turbo feels like it will make heaps of power and feels pretty responsive considering I doubled the a/r on the exhuast housing. Might boost it to 12psi to see if theres a big change. I just can't believe how well the tial controls the boost. Nothing comes out The screamer until like 9-9.5 psi.

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Birds Grand Master

Birds

Posted
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Did a naughty today and gave my car some full boost in a couple of gears to test the new clutch; I'm supposed to be running in a gearbox...

Fark me, not sure if I'll need E-flex straight away. On the freeway ramp 2nd took me there so fast I couldn't even enjoy it lol. And third gear roll from 80km/h is ridiculously good fun. <3 SS1PU

Now to be good for the rest of my gearbox run in period :/

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ARTZ Grand Master

ARTZ

Posted
Posted

Did a naughty today and gave my car some full boost in a couple of gears to test the new clutch; I'm supposed to be running in a gearbox...

Fark me, not sure if I'll need E-flex straight away. On the freeway ramp 2nd took me to 100 so fast I couldn't even enjoy it lol. And third gear roll from 80km/h is ridiculously good fun. <3 SS1PU

Lol..yeah i was amazed how fast my car actually was with a decent clutch installed too.... anything over 4000rpm just gets scary now :laugh:

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Mitcho_7 Mentor

Mitcho_7

Posted
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Turbo feels like it will make heaps of power and feels pretty responsive considering I doubled the a/r on the exhuast housing. Might boost it to 12psi to see if theres a big change. I just can't believe how well the tial controls the boost. Nothing comes out The screamer until like 9-9.5 psi.

Can't wait to see the tune results

Stao, have you ever thought about doing a twin scroll turbine housing or are they too expensive to produce?

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hypergear Grand Master

hypergear

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The turbo is not expansive to produce. all I have to do is slot the .82 rear housing in the center and insert an divider then profile the housing to suit turbine wheel, and we have a real twin scroll turbine housing. How ever it must be used on a twin scroll manifold as well external gate (preferably 2).

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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

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The turbo is not expansive to produce. all I have to do is slot the .82 rear housing in the center and insert an divider then profile the housing to suit turbine wheel, and we have a real twin scroll turbine housing. How ever it must be used on a twin scroll manifold as well external gate (preferably 2).

any chance of a internally gated twin scroll? I'll be down for that!

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kwickr33 Community Regular

kwickr33

Posted
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Didn't KKR produced a twins scroll internally gated turbine housing for their KKR480 and 560 turbos years back? It ring a bell as I have read many complaints about their lack in ability of boost control.

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Mitcho_7 Mentor

Mitcho_7

Posted
Posted (edited)

Didn't KKR produced a twins scroll internally gated turbine housing for their KKR480 and 560 turbos years back? It ring a bell as I have read many complaints about their lack in ability of boost control.

Wouldn't surprise me if they struggled with boost control. There is probably a reason you don't see many, if any twin scroll internally gated turbine housings

Edited by Mitcho_7
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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

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Wouldn't surprise me if they struggled with boost control. There is probably a reason you don't see many, if any twin scroll internally gated turbine housings

EVOs, STIs run internally gated twin scrolls. I just want it for simplicity & the "kinda" stock look instead of 2x gates hanging off the manifold.

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Mitcho_7 Mentor

Mitcho_7

Posted
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EVOs, STIs run internally gated twin scrolls. I just want it for simplicity & the "kinda" stock look instead of 2x gates hanging off the manifold.

Yeh, itd definently be worth a try i think, providing you can get it to control boost well. Sure as hell beats having to fiddle with plumbing up two external gates in that limited space.

Edited by Mitcho_7
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scotty nm35 Grand Master

scotty nm35

Posted
Posted

One external gate is fine if you run the splitter right up to the gate valve.

I just don't think there is room to effectively flow the gasses on internally gated housings, other than the BW, they nailed it, but it makes the rear housing too large.

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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
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picka-boo TiAL :D ... pretty happy with the end result.

only on 10psi at the moment but holds dead flat, car is alot faster and spins all off second if i dump the clutch which it wouldn't do before.

Booking a tune at Chequered Tuning next week, aiming for 280rwkw at 18-19psi

do you have photos of the manifold? I'm curious :)

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adam999111 Enthusiast

adam999111

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Just Google rb25 manifold lol. I haven't done anything to manifold. The external gate is off the rear housing. It was cheaper, easier, and I could use my factory crossover pipe with no mods. Just have to chop up the heat shield a bit.

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Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted (edited)

Just Google rb25 manifold lol. I haven't done anything to manifold. The external gate is off the rear housing. It was cheaper, easier, and I could use my factory crossover pipe with no mods. Just have to chop up the heat shield a bit.

LOL

got photos of the rear housing?

derrrr a few pages back lol nvm... I notice the internal gate is still there??

Edited by johnnilicte
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adam999111 Enthusiast

adam999111

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Posted

Haha. Dual gate is true. But the internal one is locked of with a pin and is nice and sealed. I did it so I have better resale value as well as the option to use it for EPA excuses/rectification and the most important reason for me, bolts to existing dump pipe. Nice and easy

Just got to read from the photos onwards

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