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Hypergear Turbochargers and High flow Services Development thread

hypergear

By hypergear,
in Forced Induction Performance

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GTScotT Grand Master

GTScotT

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I cant get VCT working unless I buy a VCT intake cam and a new VCT solenoid and gear. I have previously had too much hassle with getting VCT to work in my SR so I threw it away and put non VCT cams in my car.

I am very happy with the delivery as it is anyway. Going to keep it as is and just want to go finish my tune.

Man there are a lot of people out there with your highflows who use their cars for PROPER motor sport duties. That is crazy :)

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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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Marcus89 Proficient

Marcus89

Posted
Posted

I cant get VCT working unless I buy a VCT intake cam and a new VCT solenoid and gear. I have previously had too much hassle with getting VCT to work in my SR so I threw it away and put non VCT cams in my car.

I am very happy with the delivery as it is anyway. Going to keep it as is and just want to go finish my tune.

Man there are a lot of people out there with your highflows who use their cars for PROPER motor sport duties. That is crazy :)

Cheap reliable turbo that can be rebuilt cheaply in AUS. Also cause he's always working on improving his products can't go wrong

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hypergear Grand Master

hypergear

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Newly designed exhaust wheel finally out of the furnaces today. This particular one was from the 407rwkws SS3 prototype with a Dia of 66mm. Will be making the turbine shaft and friction weld them in the next few days. This wheel is also made to improve the exhaust side flow ability with current bolton ATR43 series turbochargers, without adding additional lag.

exhaustwheel.jpg

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89CAL Grand Master

89CAL

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Looks good Stao :)

Took a few quick photos of my turbo today, first time I've had time to even look at it since it got back here.

Might get some better photos tomorrow but in the mean time heres some photos off my phone:

20130827_195141_zpsd7a3b7d0.jpg

20130827_195149_zps486ed2b5.jpg

Happy with the way it looks, Can't wait t osee it on the car. I have no excuses now that the turbo is back to not get started on this engine

Thanks again Stao for making this happen :)

Edited by 89CAL
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89CAL Grand Master

89CAL

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SS2

:ph34r:

Yeah was an SS2CB, one of Stao's original ones produced not long after the prototype (If memory serves me correctly?)

It's been too long since I actually got the turbo. Need to put motor in car and stop making excuses

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hypergear Grand Master

hypergear

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Those are the current SS turbochargers, I'm particularly interested in the result of the SS1PU as the latest compressor has made a difference in stabilizing upper rev boost level as well as the turbo's response.

My test rig will be down graded using standard exhaust manifold and internal gate, based on the completion of the SS4 Alpha development. From there I will obtain further data based on the performance of our latest SS turbochargers internally gated, In which should archive a much better out come then what I've originally archived few years ago.

Lastly, internally gated SS Alpha turbochargers are under construction, means a new range of big power, responsive and easy fitment turbo options will soon be available for Rb25det engines.

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GTScotT Grand Master

GTScotT

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Stao do you think there would be much benefit for me to change to your new profile? As noted I will be heading back to the dyno soon so I should make the most of it.

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hypergear Grand Master

hypergear

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After some trailing and testing with using the G4 chra the housing type and profile bell shapes are pretty much set to optimum for a Rb25det engine. So far this is the most responsive 3582 equivalent turbocharger I've trailed. Obviously it will be a controlled run finding out what my cam behaviors are and gathering data for the SS4 alpha series to run against.

Trent and Cat just had their fun in China and now back to work. My dyno run is booked in for tomorrow, and hopefully things will run smoothly.

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hypergear Grand Master

hypergear

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Here's controlled run from today. The maximum power reached was 445rwkws with 25psi @ 4500RPMs.

power.jpg

boost.jpg

^^^

Boost level comparison result from previous run using the same turbocharger.

No, its not responsive for a daily, how ever not bad considering the peek power it managed. This is our base run using standard cast compressor wheel, my billet wheel versions will be act against the result above, and the desired out come would be for better power and response. 460rwkws with 25psi by 4300RPM would be a nice goal to reach

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hy_rpm Proficient

hy_rpm

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That graph looks mental straight up after 4000rpm

will be awesome to drive if it got traction

Goes from 100rwkw at 4000rpm to 325rwkw in a few hundred rpm

If these turbos could handle big boost 30psi+ you could be onto a winner for those after big power

decent response simalar to the precision turbo range

Should be well over 500rwkw at over 30psi if it can handle it but you would need the supporting mods to test it more fuel

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hy_rpm Proficient

hy_rpm

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Posted (edited)

That power level would be very fast at the drags

You should try winding the boost up and test it out at the strip

Is that turbo still internal gate and single scroll?

Just re read it still cast comp wheel and no vnt yet

With a billet comp should be even better but I'm not sure about the vnt might choke it up top restricting power

But it's definately heading in the right direction

Edited by hy_rpm
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hypergear Grand Master

hypergear

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This is running VNT, hence the difference in response. Thats on the high mount, external gate and e85. for some reason the boost curve appears laggier on paper then on road. I can see my boost gauge sitting at 15psi at 4000RPM 4th gear on the high way. Since its just a controlled test so never mind as long as the billet series works better.

If I can get rid of 300rpms of lag it would be sweet as for a daily.

Definitely very fast, I need to a 4WD system to put all of those on the road.

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