Hypergear Turbochargers and High flow Services Development thread

[hypergear]

Boost curve with VNT system fully engaged and fully disengaged:

I compared it with a earlier turbochargers that made same power range: SL25.5 (or billet T67)

[89CAL]

Saw this on facebook. Looks very fun to drive, I bet it feels insane

Just wondering the response from a slightly smaller VNT turbo would be like around 350rwkw. I havent even got the ss2 ceramic bearing turbo I bought off you yet and I already want a VNT

So good to see the amount of effort and time you put into these turbos. Looks like its really paying off

[Missileman]

so at 3000rpm you getting about 75kw and by 4000 you up over 200Kw...

that looks pretty good to my untrained eyes

[hypergear]

It made 250rwkws by 4000rpms. It provides very consistent Gforce, turbo comes in with very little throttle and pulls crazy. I should be able to get 20psi by 3600RPMs with few more hours of dyno time like what the fully engaged and disengaged boost graph shown, then disengage after it reaches that point. I can now control how much lag I want with a boost controller.

[Missileman]

I take it your test motor is a series 2 with VCT

[hypergear]

Its a Series 1. They all have VCT.

[copycutter]

Pretty sure Stao's car is a s1 r33. I thought both had VCT?

Edit: beat me to it

Edited June 15, 2013 by copycutter

[copycutter]

How does the boost controller actuate the variable geometry of the turbine? Using air pressure to force them open?

[Missileman]

Its a Series 1. They all have VCT.

ok cool, you learn something new every day, always thought VCT was series 1.5 and on

[Dose Pipe Sutututu]

anything RB25 has VCT

[Lithium]

The R32 generation ones aren't

[Dose Pipe Sutututu]

The R32 generation ones aren't

oh yeah, forgot R32s came with RB25s.. my bad

I'll fix my post:

anything RB25 R33/R34 has VCT

[RandomHero83]

Just some Feedback:

I Brought an SS1PU from Stao about a year ago and the guy who fitted it played with the wastegate instead of listening to me and Stao, It still performed well but last week my new tuner listened to me and adjusted the gate and holy crap is this turbo a good fit for my car. I want to pass on positive feedback about the product and Stao's after sales support of his product.

[phatlavish]

what did he muck around with on the wastegate?

[scotty nm35]

Preload, these need a lot.

[RandomHero83]

^ What he said.

[hypergear]

Thanks for the feedbacks. Dynosheet to share?

[RandomHero83]

Thanks for the feedbacks. Dynosheet to share?

I will upload one at work tomorrow if I get time.

[GTScotT]

I should note I am getting closer to having my SS1PU powered S14 (SR20) on the road, and the turbo is SAVAGE. The effect of the FNT rear housing is quite obvious, and you can really tell how much difference it makes as you drive a little heavier footed.

Last night I had a guy with a built LS1 powered S14 look over the car and was shocked at the delivery, he was struggling to put it to words.

Stao really knows what he is doing

[copycutter]

I understand the concept of Stao's VNT (variable) setup, but how does the FNT setup work as opposed to a garden variety turbine housing?