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hypergear

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hypergear last won the day on January 24

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About hypergear

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    HyperGear

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    http://www.hypergearturbos.com
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    Male
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    Campbellfield

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  • Car(s)
    R32 R34 M35 S2K-2JZ
  • Real Name
    Tao

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  1. hypergear
    The power figure of the ATR45SS is lower then expectation, while both wheels are bigger. There is a 22 degrees difference in ambient temp differences. I will be going back to them at a later stage. I now believe the differences of E85 and 98 is under estimated. Without actual data of this model on P98, so Its just going to give a very rough estimate.
  2. hypergear
    Probably 360rwkws mark on P98, that would be a different boat compare to E85. ATR45SS are bigger turbos, They were however tuned in 41 and 46 degrees days, I will be doing bit more work and get back to them soon.
  3. hypergear
    Hi. For Rb25det, S1 turbo will do fine, no need to go for OP6. So G2 will be something that supports stock fuel system, while G3 and G4 would need to work with upgraded fuel system and programmable ecu. G3 is capable of making up to 280rwkws on P98 fuel, while G4 is capable of making up to 310rwkws on P98 fuel.
  4. hypergear
    R34 GTT Rb25det NEO Stock Cams Nitto Pistons and Rods. 9:1 CPR HyperGear ATR43SS-3 Turbocharger ID 1500cc injectors Walbro 525L fuel pump Power FC + Z32 AFM Greedy Profect B EBC 600x300x81mm PWR Cooler kit 3inches turbo back exhaust 4inches intake pipe with Pod Split fire coil packs Twin pulse manifold and twin 40mm gate. Car made 474rwkws @ 28psi, E85 fuel. With 265rwkws @ 4000RPM, Fuel system currently maxed.
  5. hypergear
    Hypergear Atr43ss-3 Turbocharger Test and tune 474rwkws @ 28psi fuel system maxed. Should be seeing 500rwkws+ once fuel system sorted, and still seeing 265rwkws @ 4000RPM.
  6. hypergear
    Far as turbos go, with a .64 rear and .60 front that is very possible, you can even up size them to GTX3071R. I found factory exhaust setup is very restrictive, so if you can run two short 3 inches pipes hanging out side of the car along with all other supporting mods you should be able to get there.
  7. hypergear
    Pretty good result to share, From one of our ATR45SAT BB turbo externally gated on E85 fuel. Made 407rwkws @ 20psi with plenty of head room. R33 GTST with self built Rb25det engine:
  8. hypergear
    Looks like a GT35 with a T04Z front wheel on it.
  9. hypergear
    From an engineer point of view. This is because the metal used in modern comp housing alloy forging is not hardened. What we see is the metal melted during high speed machining process and stuck to cutters and housing, that can be touched up fair easily. In most cases there is a secondary process performed on lathe that removes all the debris, deburr sharp corners and round off thin edges, but how fine it needs to be is up to the manufacture. The comp housings forged during the early 90s are better quality, materials is hardened, they don't stick on tools, can be turned at moderate speed and comes out smooth after profile cutter. Modern CNC machines has much higher chunk speed, soft alloy can now be profiled to a mirror finish, so majority of castings today are no longer treated.
  10. hypergear
    The ATR43SS2 BB is a capable of much higher power levels then the high flow while not been any laggier. I guess if you have external gate E85 plans for up to 440rwkws E85 the SS2 will do, and this turbo works in both internal or external gate (obviously much high power externally gated). or if your goal is roughly 300rwkws and won't be thinking of of any thing much higher, then high flowed turbo will do fine.
  11. hypergear
    R34 GTT Rb25det NEO Stock Cams Nitto Pistons and Rods. 9:1 CPR HyperGear ATR43SS-2 Turbocharger ID 1500cc injectors Walbro 525L fuel pump Power FC + Z32 AFM Greedy Profect B EBC 600x300x81mm PWR Cooler kit 3inches turbo back exhaust 4inches intake pipe with Pod Split fire coil packs Twin pulse manifold and twin 40mm gate. Car made 442rwkws @ 25psi, E85 fuel. With 280rwkws @ 4000RPM
  12. hypergear
    ATR43SS-2 billet ball bearing turbo, most people tend to use them as a low mount bolt on. It works fine supporting 300rwkws on P98, Once given E85 and external gate it pulled 442rwkws with 280rwkws @ 4000RPM. This is a super fun daily or track car.
  13. hypergear
    ATR43SS2 BB in .63 internally gated or We can high flow your stock turbo to make around 280rwkws and that be super responsive also. This is an latest result of our latest profile of an 21U high flow on a stock engined R33 GTST with big cooler, Greddy inlet manifold, and 3.5 inches turbo back exhaust. 362rwkws @ 22psi E85 fuel.
  14. hypergear
    R34 GTT Rb25det NEO Stock Cams Nitto Pistons and Rods. 9:1 CPR HyperGear ATR45SS Turbocharger ID 1500cc injectors Walbro 525L fuel pump Power FC + Z32 AFM Greedy Profect B EBC 600x300x81mm PWR Cooler kit 3inches turbo back exhaust 4inches intake pipe with Pod Split fire coil packs Twin pulse manifold and twin 40mm gate. (Grey was single scroll manifold with single gate) Car made 440rwkws @ 27psi, E85 fuel.
  15. hypergear
    Grey: Standard single collector T3 high mount exhaust manifold and single 40mm gate Green / Orange: Twin scroll T3 high mount exhaust manifold with twin 40mm gates
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