Hypergear Turbochargers and High flow Services Development thread

[Dose Pipe Sutututu]

4 hours ago, hypergear said:

I might have misunderstood the question. In my opinion, external gate bleed off factory exhaust manifold should make more power as it is restrictive towards the turbo flange 

A gate before the collector will always make more power than a gate after the collector (providing the collector has started to become a choke point).

Same turbo (well nearly, one was an ATR43SS2 journal vs. ATR43SS2 BB) different gate location and I picked up an extra 50kW on less timing.

 

[Adz2332]

On 14/12/2023 at 10:47 PM, hypergear said:

Yes, They can be built as an internally gated stock hot side bolton unit. External gate / External plumb back kits are also available. 

 

 

Any graphs on a RB25

 

ATR43SS-2 T3 .63 size.

[hypergear]

Yes this is a member from NZ. Thats using the turbine housing external gate kit plumbed back, currently sitting at 311rwkws @ 22psi on P98 fuel. 

[hypergear]

Posting update. 

This is a revision of G30-900 turbocharger. Third revision managed to pull 95kws more on top of the original G30-900. Recap:

 

Car used for test and tune is an Rb2530det powered R33 GTST.

Engine Specs:

Rb25det head with forged Rb30det bottom

Forged pistons and con-rod

Upgraded Valve springs

HKS 256/ 264 drop in cams

Fuel system:

1650cc Bosch fuel injectors

Two 460L fuel pumps

ECU:

Haltech ECU

5-0 Trigger kit

Turbo side:

Hypergear ATR43SS-3 Prototype turbo

6 boost high mount exhaust manifold

Turbosmart 50mm external gate

3 inches road legal turbo back exhaust with 2.5 inches cutout pipe for testing purposes only.

Hub Dyno Tune: Chequeredtuning Victoria

 

Car makes just under 300rwkws by 4000RPM in a standard 5 speed manual, peeked 586rwkws on E85 fuel. Turbocharger is not maxed, I will add more boost into it when my build box is back in action. Comparison graphs to the original G30-900 will be uploaded in comments coming week. Dyno video for now:

 

 

Edited March 2 by hypergear

[hypergear]

A quick note that we will be releasing popular Rb25det hot side bolt on G / GTX configurationed turbochargers, including internally gated, externally gated and externally gated plumb back versions. Geninue core can be supplied at additional cost. Link below:

https://hypergearturbos.com/product/rb25detgngtx/

 

Edited March 4 by hypergear

[soviet_merlin]

6 hours ago, hypergear said:

A quick note that we will be releasing popular Rb25det hot side bolt on G / GTX configurationed turbochargers, including internally gated, externally gated and externally gated plumb back versions. Geninue core can be supplied at additional cost.

Realistically, what difference does it make when running a genuine Garrett core or not? Performance? Reliability? I'm curious because it is such a big difference in pricing. Thanks!

[hypergear]

Differences will be minimal. If U do have concerns go for geninue core.

[Desean Strickland]

I have a brand new g3 21u high flow that I can’t use any more due to going 25/30 

selling it for $750 cost me $1000 

brand new never installed or used 

comes with stock wastegate actuator

in WA but can post it 

delete if not allowed 

[PranK]

On 05/03/2024 at 12:50 PM, Desean Strickland said:

I have a brand new g3 21u high flow that I can’t use any more due to going 25/30 

selling it for $750 cost me $1000 

brand new never installed or used 

comes with stock wastegate actuator

in WA but can post it 

delete if not allowed 

Chuck the ad in the classifieds section.

[hypergear]

Uploading dynot results from last week. This is our in house built G30-900 Vs two of our revised versions of G30-900. Pretty interesting as current prototype turbine with +2mm dia managed to make 88kw over standard G30 turbine. Green is another revision of G30-900 with a more free flow turbine aka ATR43SS3ProR. All three cores uses T3 .82 turbine housing. Latest prototype also shown +500RPM of lag, I do have one more prototype turbine to test, hopefully closing that gap alittle. test car is our Rb2530det R33 GTST with cams. 

 

 

[hypergear]

Updating results:

Today we’ve tested the 3rd custom turbine shaft for this compressor. New turbine have managed to pull 568rwkws at 29psi E85 fuel at a point that no more power could be made, which is 71kws gain over standard G30-900 and within 220RPM @ 20psi in response.

In comparison to all 4 turbine wheels including original G30, current turbine is 17kws short compare to sample 3 above, but it has similar drive ability to original while making significant gain in mid top rev range.

 

Vs UHF57 above

 

Dyno video: