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hypergear

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Everything posted by hypergear

  1. hypergear
    Had some feedbacks from this customer. Car run 12.03 Sec quarter mile at 120.65M/H
  2. hypergear
    There are two types of OP6 high flow. Most of the recently once made this year has the updated compressor and turbine whiles which is capable of making a lot more power. The older versions usually stops making power towards the 260rwkws mark, which your first dyno run sort of makes more sense. Getting the most out of the turbocharger, 3 inches metal induction with a good pod is a must, as well as a proper cooler and free flow exhaust.
  3. hypergear
    Currently I don't. I prefer developing new exhaust wheels for more specific applications. Once a turbine wheel is cropped it will becomes very unefficient, that requires lot more combustion pressure to rise shaft speed. But if you want to crop a wheel to a given degree for what ever reasons I certainly can to do it.
  4. hypergear
    Yes can swap over. but I will need the turbo back also, that is to machine up the turbine wheel accordingly.
  5. hypergear
    Getting the most out of it you will need a proper 3 inch metal induction pipe with a good pod filter. Or at least 3 inches metal induction pipe. Once done, there will be a gain in power. The actuator pressure is affected by how free flow the whole system is. Usually working with a larger induction with big cooler and very free flow exhaust would ended up with more boost pressure then some thing thing that is more restrictive. Also preloading on the actuator will have an positive effect towards response. Alternatively if response do become concern, drop in a 21U turbine housing, it will increase response by roughly 500RPMs.
  6. hypergear
    Stock Op6 Turbocharger on a R32 makes full boost around 4300RPMs and max out at 201rwkws. So I think its not too bad. Ideally hunting for response is probably better stick with stock turbine housing for response. How ever maximum power wise, the OP6 high flow is capable for a lot more.
  7. hypergear
    Generally I see Rb20det engines using the same turbocharger been 1000RPMs laggier then as if its used on a RB25det engine. So the SS2 Alpha mentioned above should be making full boost around 4500RPMs on a Rb20det, power based on same boost is about 10% less up to certain point that RB20dets no longer makes power while RB25dets keeps on making power.
  8. hypergear
    383rwkws with 23psi by 3500RPMs standard spec rb25det engine on single scroll high mount and external gate E85. Thats about the limitation of most power and response. any thing more it starts to chock the engine down low and doing opposite. It feels as stock turbo pulling 383rwkws. No point getting any better response beyond this point. That was with the old SS2 CBB CHRA, the new one can probably fetch 390rwkws.
  9. hypergear
    ^^^^ That is BS Ask him why other people using his Rb25det high mount manifold and this particular turbo fits. All P Trimmed T3x turbine housings are identical. Its the "Area" over Radius that made up that volume which hits the rocket cover. To space it out, this area will have to be minimized, means no longer .82. Also look how close this back plate is to the head. There is no way this comp housing can fit even the turbine housing is changed. I've seen 6 boost manifolds high mounted SS2 with .82 turbine before. This manifold is very wrong. The only way I see it, is by cutting off the manifold flange and re-weld it in the correct angle.
  10. hypergear
    .82 turbine:
  11. hypergear
    Well it is 2mms larger then previous version with a different blade radius and hub shape.
  12. hypergear
    This one is $1100 to build. including Vband O ring and clamp on the turbine side.
  13. hypergear
    Yes it is lol The cut on the turbine housing is made for 14mm nuts.
  14. hypergear
    Add in another update. This is our latest TD06SL2 based turbocharger, the SLSS-2 in 10cm turbine. This particular one has the latest low friction trust setup, with slightly larger compressor inducer and slightly more aggressive compressor blade profile. It should be maxing out around 390rwkws mark working with a RB25det engine on E85. It is made to produce more power, with better response and much better reliability to some of the T67 copies Will update results shortly. .
  15. hypergear
    Upload a video. Which we machined a bunch of comp housings today using CNC: The comp housing profile was done by CNC too, except the lathe tip is sprayed with oil that can't be seen. Takes about 10 mints to complete a comp cover from Castings. Which working by hand would roughly be 70 mints.
  16. hypergear
    For this size engine you can run a SS-4 turbo. That maxed at 435rwkws. It is more responsive then a 3582 also.
  17. hypergear
    Actually after I replaced the stock R33 rubber induction pipe with a proper 3 inch metal item. My fuel actually went lean in upper revs. It has to be touched up.
  18. hypergear
    I was modifying 300zxs for a couple of years and induction pipes on them do make a very noticeable difference. So I believe proper induction pipes can also affect GTR's performance in a positive way.
  19. hypergear
    Little update on the ATR28SS series on sr20det engine. This particular prototype is a modified SS15 in a .64 rear, how ever the modification did not take effect. How ever still made a reasonably responsive 255rwkws @ 18psi on pump 98 fuel. This turbocharger against the most responsive GT2871R in .64 turbine housing run, and beats it in both power and response: I also conducted a test evaluating factory 2.5 inches induction pipe Vs a 3 inches induction pipe. Results as shown: Differences is 13kws at 255rwkws application: Red is with 2.5 inches induction pipe, while Green is the normal 3 inches induction pipe.
  20. hypergear
    Some updates. This is a result sent in from Toshi, based on a Manual Skyline with our high flowed OP6 turbocharger. Made 277rwkws on 17psi, P 98 fuel.
  21. hypergear
    The SS2 won't be making 400rwkws. It will get you a super responsive 360rwkws mark on E85 fuel working with RB30det engine. You will be looking at SS3 or SS4 for some thing 400rwkws+. Also I'm not too sure how doable it is on stock manifold, might need to run a proper high mount.
  22. hypergear
    Its has a electric controlled flapper valve With a by pass pipe. 3 volume sittings. Obviously restrict flow to lower noise. But works well if you are looking to reduce cop attentions.
  23. hypergear
    The oil feed is M10x1.25 and Oil drain measured from center of the bolt holes is 1.5 inches. Water is M14x1.5.
  24. hypergear
    The 2.5 inches skyline induction pipe in comparison to a proper 3 inch metal induction pipe was huge in difference. The S14.5 that I currently have also has a 4 inch metal induction pipe. I have seen some 2.5 to 3 inch expander pipe. Those might comes handy.
  25. hypergear
    Well, i can run a 2.5inches pipe to it and find out i guess. Either way. Assume if you had enough fuel and has larger size cams, the ss15 should set around the 280rwkws mark on your car. Building one more prototype working with the .64 rear.
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