Hypergear Turbochargers and High flow Services Development thread

[hypergear]

hey stao just wondering say if i give u a HKS2535 turbo can u like put bigger wheels on it and like make the housings flow more if so how much? and what would the response and hp be like?

Cheers

Chi

If the turbo is working I suggest to sale it and we can buil you a new one. But if its dead we can high flow that with a Garrett GT3071 chra. will have very similar sort of response, and maxes at about 260rwkws. This will cost roughly $1350 mark.

[Crans]

Stao is the dump pipe on my atr28g4 ment to sit in the factory location?

[hypergear]

Yes it should. I fitted one to my own car and it seems to be ok. Well you are welcome to send the unit back to swap for a bolton turbine housing.

[Crans]

nah that fine just wanted to make sure, if i lossen the rest of the exhaust it should hopefully fit

[kwickr33]

Its a pretty generous offer. I think you should take it. Plus you can connect a 3inch pipe straight into the ATR43's turbine housing, which will flow heaps better then that little 2.5 inch pipe.

Edited January 28, 2010 by kwickr33

[Crans]

my atr28 has a 3" inlet already. Its all fitted now apart from the dump. Just wanted to make sure the stock front pipe is ment to bolt up so i dont waste my time.

[hypergear]

Here are some updates. I spent a day working on this and turned a blown R33 turbo to a sleeve bearing HKS2530 (Yes even machined matching compressor trim). By calculation it should produce exact amount of power and response as the actual 2530.

Its for sale complete with $1000 with oil line and high pressure actuator (1.2KG) for how ever's interested to provide some dyno sheets. From calculation this turbo is good for a super responsive 220~230rwkws on about 15psi of boost.

The cost to high flow any R33 or R34 turbos in this way cost $1050 including braided oil feeding line or $1150 with high pressure actuator.

[dori34]

quick little video 5psi untuned

give you an idea on the induction noise

mate the induction noise sounds awesome.

cant wait till you run more boost into it.

[l0WRB]

hey mate i got it tuned last thursday

made 396hp @ 18psi

ill post up another video soon

[Black_CSR]

I am intrested in buying this :-)

Here are some updates. I spent a day working on this and turned a blown R33 turbo to a sleeve bearing HKS2530 (Yes even machined matching compressor trim). By calculation it should produce exact amount of power and response as the actual 2530.

Its for sale complete with $1000 with oil line and high pressure actuator (1.2KG) for how ever's interested to provide some dyno sheets. From calculation this turbo is good for a super responsive 220~230rwkws on about 15psi of boost.

The cost to high flow any R33 or R34 turbos in this way cost $1050 including braided oil feeding line or $1150 with high pressure actuator.

[msports180]

Here are two photos of your job. Turned a KKR480 to a sleeve bearing 3582 in .70 front with Anti surge slots and .69 rear. I'm pretty happy with way of how the angled slots we drill came out.

My Camera wasn't very good. Please upload few photos when you get it. Cheers.

What would be the cost to get this done? Will it go onto a stock manifold and still be able to use the internal gate?

[Crans]

Finally got everything hooked up. Had to unbolt the middle exhaust mounts to do some tweeking but all good.

Here are some pics

Hitting R&R at 12psi so its pumping out alot more air. The 28G4 is quite abit laggier but not that bad and after a tune it should be alot better.

time to get the old Nistune software out will post results when i get it all done and on the dyno

[geraus]

nice nice, im still enjoying my highflow

[hypergear]

What would be the cost to get this done? Will it go onto a stock manifold and still be able to use the internal gate?

Including the .70 comp housing and the anti surge slots, it will cost $1230 to carry out. If your current internal gate works then your are still be able to run it internally gated.

[SS8_Gohan]

for the GTR's that run 2 x 2530's are they just the exact same as what non-Rb26 owners would put on? Or were the GTR 2530's slightly different when running a dual setup?

[GTScotT]

for the GTR's that run 2 x 2530's are they just the exact same as what non-Rb26 owners would put on? Or were the GTR 2530's slightly different when running a dual setup?

the exhaust housings have different flanges, so its not interchangeable.

[hypergear]

The CHRA as in the same spec. Just the housings are different. How ever we can build those turbine housings to suit GTR upgrades.

[snozzle]

every dyno graph i see here has the same boost drop problem as our highflow that we are running on a mates car.

Comes up to 18psi at around 3800rpm, slowly dies off to 15psi as u approach redline, no matter what you do, mind u, all new gaskets, no gasket leaks! haha

the turbo was a gt3076r core, stock rb25 housings machined on, power delivery is very impressive, excellent for street, linear torque curve helps keep traction also

its just a shame the stock manifold and housings cant hold the boost till redline above 1 bar ...

what do u charge to build a turbo to this specification?

[hypergear]

Well the boost pressure drop depends on the turbine housing pressure and the wastegate's spring load. Most of .63 and bigger turbine housings used on RB25det can be internally gated with a high pressure actuator to hold boost curve steady to certain point (18~21psi).

Most of turbos we built or high flowed are fitted with a standard actuator. With high pressure actuator below, I've tried it on my own and also few customer's R33s which did manage 21psi flat using .82 turbine housinged ATR43G3 turbo. This actuator Cost $150 additional with all high flows and brand new turbos:

To build a sleeve bearing GT3076 spec turbo in .82 turbine housing with OEM bolton pattern we charge $1450AUD including oil feeding line.

To build it with Garrett GT3076 Ball bearing CHRA using our .82 turbine housing with OEM bolton pattern is $1850AUD.

[snozzle]

1850 isnt a bad price, can you email me any dyno sheets with this turbo fitted to an rb25? what boost levels is it capable of holding till redline ? theseventhgear@hotmail.com

for the record, the turbo was fitted with an uprated 12.5psi actuator and a profec b was being used

what is this .82 rear housing? where is it made? how much power can this rear housing expect to make on std cams ?

Edited February 2, 2010 by snozzle