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hypergear

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Everything posted by hypergear

  1. hypergear
    can definitely make it run less then 10psi with smaller compressor and turbine profiles. Depending on what the plans are, if injectors and ecu are on the list then have the larger profile and don't thresh it till the the mods installed and car tuned.
  2. hypergear
    For reversed turbine wheels there sin't that much of option yet available. Need to see what I can find.
  3. hypergear
    If you are serious about power and response and have a little bit of budget, Have a look at our SS alpha series which is an multi stage CBB VNT turbocharger. That drives as a factory turbocharger pulling 383rwkws. This is much more then a .82 single stage 60mm turbine with a billet compressor can archive.
  4. hypergear
    They only work with low boost level applications, some thing under 16psi would work great. The compressor and turbine end must be welly balanced. As in the back pressure needs to be similar to boost pressure so forces generated naturalizes. At moment with the SR its matter of evaluating different wheels and housings for some data. Once the limitation of compressor and turbine is determined, I can then mix-match or make some thing very specifically to suit either end of the turbocharger. That way I have a balance flowed turbocharger that makes good power for its response and last.
  5. hypergear
    SLSS2 is making 285AWKWs so far. I think it will stop making power just under 300awkws at 29psi.
  6. hypergear
    Actually the SS1.5 is smaller then a 20G. That one which you've sent back originally was a 20G size. Regardless the compressor don't matter that much, the turbine side is the one needs to be worked on. The SLSS2 stopped making power at 385rwkws at 23psi on my R33 externally gated on high mount. Usually smaller engines needs more boost getting the same power level. How ever the EVO is internally gated (stock manifold?) The easiest way to determine wither the turbocharger or some thing is maxed out is by judge the amount of power gain per psi of boost added. The percentage starts to decline sharply when that happens, and best leave as that. By calculation this the SLSS2 will max out at 299awkws at 29psi. Did that evo ended up adding higher boost for the dyno show?
  7. hypergear
    I have a spare set of brand new FiveO 1200 CC for $750 if interested. The 16g is abit small for what I was after, might be shifting that to the SS1 turbine and see which one is better out of the two. I will be evaluating the current 18.5 or 20.5G billet comp wheels down the track.
  8. hypergear
    The Evo high flow has a SS2 compressor. They are awesome. Its going on to it next. But I'm going to try a huge turbine.
  9. hypergear
    Well its still the same compressor. All I did was changing the turbine. Main goal was reaching more power on less boost. Using the new turbine I'm been able to get 270rwkws based on 21psi while older turbine would required 25psi. The advantage is very useful when comes to stock engines that can't handel so much boost. Its holding pretty flat till 20psi. And then started to drop, I believe this compressor wheel is too small supplying 20psi to the engine after certain rpms. I'm developing an CBB turbo for it at moment. Looking to make some thing crazy.
  10. hypergear
    Some updates on the SS15 prototype. It actually behaved like been expected. Managed to max out the compressor using way less boost. The engine is much happier and been able to take more timing up top. Down side is slightly laggier due to larger exhaust wheel. The most it made was 280rwkws peeked 26psi. Which at 21psi it managed to reach 270rwkws which was what the original version at using 25psi of boost. Pretty happy out come. Dyno tuned at Chequrered tuning based on pump 98 fuel. Purple and thick blue is from the new SS1.5 today. Thin faded blue is from the original SS1.5
  11. hypergear
    Well the high comp engine does not help with back pressure and heat. Using a large 25G comp with a small L2 turbine in a tinny 8cm housing is going to make your engine pin and significantly reduce the life of the turbocharger. If it has to be a Greddy style of a turbocharger I recommend the 25G with a TD06H turbine in a 10cm housing which you can get them separate and we can machine it to suit. Alternatively you can use one of our .82 turbine ended SS2 in .70 comp as an high mount. which is very reliable and will produces excellent turbo response while make the same amount of power as to a 25G compressor.
  12. hypergear
    Nice to see its sorted. can't wait to see more power.
  13. hypergear
    Just need better clamps. Material wise on cooler pipping technically makes no differences to performance.
  14. hypergear
    The ATR43SS4 is a big 3582 equivalent turbo in a .82 rear, it has all the behaviors of a large turbocharger. So the maximum power wise its obvious the bigger turbo will produce more and smaller turbo has better response.
  15. hypergear
    Your new turbo :
  16. hypergear
    Yes I can possibly making it to support close to 500rwkws on E85 on an external gated setup. How ever I can not warranty that turbocharger.
  17. hypergear
    Been pimping turbos for few customers lately. Funny many sprayed the comp cover black after the installation of turbocharger which makes it half white. Below is an high flowed version for a G3 turbocharger for Jet_R31. Apparently it was making 260rwkws on an Auto Stagea externally gated from turbine housing on stock exhaust manifold, been very responsive. Customer wants more power and bit of extra lag don't matter. We know Auto trans usually makes 15% less power to manual and the extra weight of the chassis results higher engine load, It increases discharging temp and velocity and making the turbocharger spool faster as if its fitted to a Skyline. Power wise might be slightly less due to the heat, How ever running external it does not make a significant difference. I have a feeling that the compressor might be towards it maximum efficiency at the boost level given, So I have used one of my older SS3 billet prototype wheel instead, and replaced the older 60mm (current version is in 64mm) turbine with an larger 75mm item. By doing so compressor flow is increased while keeping the turbine end cool. Should result in more power and better torque at same boost level. Now all pimped in black and looking good: Turbine:
  18. hypergear
    Similar to my 490rwkws run. When saying fun to drive its more of a "serious fun" at a different level. Its not like smaller turbochargers that runs out of torque at high speed. It pulls like a train over 200km/L in 5th, It feels like the air resistance is tearing every single panel of the car apart, surroundings rushing backwards, a little bit of wind or a tinny bump on the road could send it air born, Not mentioning speed doing 365 degrees turns. If my tyre popes I would be dead .
  19. hypergear
    I smsed cat for a time, still waiting for her reply. Hopefully next week. The VCT gear is so hard to find, I bought a 2nd hand one and its noisy as. Nissan Australian wants $960 each with no stock. I ended up bought one brand new from US for $720 delivered. Funny thing is I originally bought a S14 thought there would be heaps of VCT SRs around because they were Australian delivered, but till now every single SR person came in has either a S13 SR or VCT cancelled SR using cam gears. Since my original results are all based on the way it is, I prefer getting the best possible results I could, before applying VCT and E85.
  20. hypergear
    I'm pretty sure the car is very good to drive. With the ATR28SS1.5, The overall diameter of the wheel don't necessarily mean it will be laggy, it depending on how much area is provided and the velocity of air when its expanded. The diameter of the new turbine is 65mm, which is the largest I can possibly fit into that turbine housing. How ever I've grind down the inducer blade height that maintains air velocity when it entering the inducer blade of the turbine wheel, larger exducer blade area creates greater centripetal force, How ever becomes restrictive at high engine rpms. So I have left extra length creating greater exducing area in combination of a large 38mm internal gate. In fourth gear its making the same amount of boost per RPM on paper so it should be very close to how the original SS15 turbine performs in terms of response. I'm looking forward to the dyno day.
  21. hypergear
    The lower reading is with air box lid on. I've been told having the lid cause a lose of 3psi of boost. Been working on my new SR turbo this weekend. Knowing the .64 might be restrictive up top, how ever I still want to keep it for its response, so I've grind down a larger exhaust wheel to suit the T28 bearing housing. Below is still the SS1.5 now running a much larger rear. I have also bored out the internal gate to 36mm and used an large 38mm internal wastegate. Its currently installed, response wise feel similar to the original version. How ever in upper top range it no longer feels like hitting a brick wall. I'm hopping to maintain the maximum compressor efficiency with lot less boost, while improve mid top range torque.
  22. hypergear
    Add Blah_blah's result. this is from his newly rebuilt RB25det Neo motor working with a large ATR43G4 internally gated bolton turbocharger. It has came a long way of diagnostics and trouble shooting, the end result is: Car: R34 GT-T Hypergear 3582 Tubo 3inch Tbe exhaust Return flow intercooler New 460 l/h Walbro fuel pump Bosch Ev14 ID 1000 injectors Nistune Rebuilt engine Standard fuel rail and regulator
  23. hypergear
    Drop a Rb25det Neo in there. Much better engine . Not recommending of buying 2nd hand engines, I bought one and swaped it three times as they all had bad pistons. Rebuilding it properly would save heaps in the long run.
  24. hypergear
    For the same power range I recommend our ATR43 SS2 The externally gated version is $150 more then what the T67 is, Extremely reliable with 0 failure up to date and faster response. Or buy their new massive billet T67 , I can upgrade the rear end and make it flow about 430rwkws mark reliably.
  25. hypergear
    Thanks for sharing. This is an excellent result. I'm very happy with how the new wheel configurations performed. Even on a R33 Rb25det it still managed to hold very steady power and torque in upper rev rang, which usually dips after 6500 on stock manifold internally gate. I have one more results form a recent customer, with a OP6 high flow based on a R34 GTT. Which managed similar result of 271rwkws on pump at 18psi: I've been working on few new turbos for the time been. photos and results will be posted shortly. With JJR dumps they need go through some serious die-grinding, they are then good to use. I found JJR's return flow coolers get hot pretty easily, while plazamaman, PWR and most of Jap brands stays cool for much longer. Might be the next upgrade to try on.
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