Hypergear Turbochargers and High flow Services Development thread

[Dose Pipe Sutututu]

GT-R owner's wet dream, turbo setup that's bigger than stock and coming on before 4k RPM.

 

[hypergear]

Yep it was more responsive then the stock twins, and held boost all the way to red line.

[Snara]

On 07/05/2021 at 10:50 AM, hypergear said:

Yep it was more responsive then the stock twins, and held boost all the way to red line.

T4 twin scroll or single? What AR and when we can buy it 💓

[hypergear]

Its currently a single scroll T4. I'm making a new prototype for 400awkws with same response. Will be available for public in T3 or T4 rear housings once tested in about two weeks time.

 

[hypergear]

Tested more more Protoype Rb26 T4 Turbo today.  Car made 443awkws E85 at 27psi, reaching 20psi and 200awkws by 4000RPM. Will be looking at Cam shaft upgrade and slight turbine trimming for the next run.

 

Edited May 19, 2021 by hypergear

[hypergear]

ATR45SS-1 Ball beairng Turbocharger in T3 Vband rear externally gated. In an R33 GTST, built Rb25det engine, factory stroke, with 264 camshaft maintain VCT. Final result was 472rwkws externally gated, power pulling all the way to 8000RPM on E60 fuel with 230rwkws @ 4000RPM. It would easily make 500rwkws+ with upgraded cooler and fuel system.

 

[hypergear]

Following the car above, now with E85, Pull 511rwkws and still plumbed back gate.

 

[Dose Pipe Sutututu]

On 05/06/2021 at 9:35 PM, hypergear said:

Following the car above, now with E85, Pull 511rwkws and still plumbed back gate.

 

RB26 owner's wet dream. On song before 4500rpm and make those kind of numbers.

[SKYMAGGOT]

On 05/06/2021 at 11:35 PM, hypergear said:

Following the car above, now with E85, Pull 511rwkws and still plumbed back gate.

 

What size is the exhaust?

[hypergear]

On 08/06/2021 at 1:28 PM, SKYMAGGOT said:

What size is the exhaust?

3.5 inches to 3. there should be another 20 kws left in it once externally gated with a better cooler. 

[hardsteppa]

Result for you. ATR43ss2 ballbearing version compared to Garrett GTX 3076 gen 2. Same 0.82 externally gated housing used on both, and the turbo was the only change to the setup. Forged RB25, Supertech valvesprings, 256 Poncams, topmount steampipe ex.manifold with Turbosmart 38mm external gate, 3.5in intake pipe, 3.5in turbo back exhaust, Apexi PFC. P98 fuel.

Disregard the pink line; that was the GTX running an EBC that overboosted, run aborted. The blue line is the ATR43, no boost controller, just running wastegate pressure. The red and green lines are the GTX, also just running wastegate pressure....crappy ex.manifold resulted in spiking a much higher boost pressure, another story so disregard that aspect of the higher HP when it hits 24psi.

Important part to note is the ATR making more HP through the entire run right up until the boost creep on the GTX. Also to note, the R35 afm in a 3.5in pipe was hitting 5v at the peak of the red run.

Here's the run of just the ATR.

Just under 400rwhp. Note this was also with an inadequate boost controller; now running a Greddy MAP controller allowing for boost to come on stronger earlier without overshooting at higher rpms, so the midrange is now stronger.

Same dyno and tuner for both, just done at different sessions.

Edited June 10, 2021 by hardsteppa

[usmair]

What's the hypergear equivalent of a gtx3071?

[hypergear]

Similar to an ATR43SS-2

Another ATR45SS-2 result to share, This time in a T3 1.0 Rear with a Built RB26 running stock cams. Car made a impressive 625rwkws @ 38psi E85 fuel.

 

 

[hypergear]

 

New prototype ATR45SS turbocharger. Now sitting at 485Awkws @ 32psi of boost, all in by 4200RPM. New turbo made 40kws more in power while no lose in response. Car's nice and and responsive to drive. Currently sitting at the limitation of the stock engine, considering of doing a forged build soon.

Stock R34 GTR Rb26 with APR head studs
HKS Cam gears 0 inlet, 0 exhaust.
R35 GTR coil packs
Trigger kit
ID 1650cc injectors
Twin 540 Walbro pumps+11m fuel line
Apexi FMIC
Trust 3 inches turbo back exhaust
PS2000
Nismo Front mount cooler
T4 high mount exhaust manifold
HyperGear 50mm External gate
HyperGear ATR45SS Prototype T4 Vband rear
3 inches front pipe with cutout
Final result so far 485awkw / 650awhp @ 32psi E85 fuel. All in by 4200RPM. 

 

[Dose Pipe Sutututu]

Great work Tao, looks like Trent ramp in the boost gently to limit torque so the stock motor wouldn't explode. Judging by the graphs you could get more boost in earlier but most likely break the motor LOL

That comp cover also looks great, much nicer than premium products with poor casting and material missing.

[joe89]

On 06/05/2021 at 9:01 AM, hypergear said:

Further development on the T4 printed turbo on Rb26. This prototype made a pretty big differences, peek 377awkws while making 20psi by 3500RPM and 220rwkws @ 4000RPM. Will doing few more things and hopefully seeing 420awkws+ without loosing response. 

 

 

Is that turbo already available to buy?

[hypergear]

Yes it is available. PM's sent. 

[Dose Pipe Sutututu]

That turbo will bring all the GT-R boys to the yard.

Twins are shit.

[hypergear]

Some footage from last Winton practice from Mr Oversteering, Still running one of our high flowed OP6 Turbocharger making a responsive 310rwkws.

 

[hypergear]

Not a RB this time, but this thing's pretty cool: