Jump to content
SAU Community
  • Welcome to SAU Community

    Welcome to SAU Community, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information for you to signup. Be apart of SAU Community by signing in or creating an account.

    • Start new topics and reply to others
    • Subscribe to topics and forums to get email updates
    • Get your own profile page, build reputation and make new friends
    • Send personal messages to other members.
    • See fewer ads!

    Consider joining our newsletter for the latest content updates

    Click here to register


Hypergear Turbochargers and High flow Services Development thread


Recommended Posts

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

power.jpg

boost.jpg

  • Like 2
  • Haha 2
Link to comment
Share on other sites

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.

power.jpg

boost.jpg

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

Link to comment
Share on other sites

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.

 

Link to comment
Share on other sites

  • 2 weeks later...
Posted (edited)

carondynofront.jpg

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.

power.jpg

boost.jpg

 

Edited by hypergear
  • Like 1
Link to comment
Share on other sites

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.

enginebay.jpg

power.jpg

boost.jpg

 

  • Like 1
Link to comment
Share on other sites

  • 3 weeks later...
On 05/06/2021 at 9:35 PM, hypergear said:

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

511rwkwE85.jpg

500rwkwE850boost.jpg 

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

  • Like 2
Link to comment
Share on other sites

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. 

Link to comment
Share on other sites

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.

20210411_101516.thumb.jpg.4cfa7bc4dd485566822684174578339c.jpg

dyno.thumb.jpg.9aef615cb4115a35ec216deff3e66961.jpg

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.

1283232125_dyno1.thumb.jpg.d45af8a82c177bbeeaeb8200697469e2.jpg

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 by hardsteppa
  • Like 2
Link to comment
Share on other sites

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.

enginebay.jpg

 

power.jpg

boost.jpg

 

Link to comment
Share on other sites

  • 2 weeks later...

 


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. 
 

power.jpg

boost.jpg

Link to comment
Share on other sites

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.

  • Like 1
Link to comment
Share on other sites

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. 

carondyno2.jpg

 

power.jpg

boost.jpg

 

Is that turbo already available to buy?

Link to comment
Share on other sites

  • 3 weeks later...

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

 

  • Like 1
Link to comment
Share on other sites

  • 5 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



×
×
  • Create New...