Jump to content
SAU Community

hypergear

Members
 View Profile  See their activity

  • Posts

    4,108

  • Joined

  • Last visited

  • Days Won

    25

  • Feedback

    100%

 Content Type 

Everything posted by hypergear

  1. hypergear
    Just had a result sent in from a SR20det customer made 282rwkws. That is our billet version, don't want to hijack the thread, check out dyno readings on my thread.
  2. hypergear
    Check Plazaman's cooler kits. they cost bit more but they are very good at heat exchange. Had one on 24psi and the cool side end tank remain cold through out the dyno tune. Wither some of the cheap return flows coolers turned burning hot after couple of runs.
  3. hypergear
    A photo of the turbine wheel would be good. I've had few of their high flowed units came in for service, they were carried out using factory bearing housing, with cropped TA34 turbine wheels. if that is what you've got in your Rb20det high flowed turbo then yes it will be laggy, how ever it should be ok top end wise. turbocharger configuration for Rb20det needs to be treated as a Sr20det, Turbine wheel to any thing above the size of a 2530 will feel laggy.
  4. hypergear
    The Tube ID is 45mm Also an prototype actuator was made. it has adjustable rod that allows pre-loading, but also allow adjustments to spring load pressure. Similar to certain external wastegates that allows spring load adjustments. By using this prototype, I'm hopping to hold steady boost levels in upper rpms range, similar to an external waste gate result.
  5. hypergear
    That appears to be foreign object damage.
  6. hypergear
    There is a very noticeable gain in response using with this manifold. I'm very sure it has lesser volume compare to previous, plus shorter runners would've also helped. hopefully peek outputs stays the same. The factory manifold is a twin plus log manifold.I prefer keeping it that way, refer to previous photo, note the curvature in bends of both manifold logs. if that has been milled then exhaust gas will run into a flat end, its also the reason that I didn't mill into the merging point. External gate in this case can be attached to the turbine housing since the manifold is no longer restrictive.
  7. hypergear
    Thanks for the feedback. Looking forward to see your dyno results. Further updates with the fabricated factory exhaust manifold: It took me 4 hours to remove brae's manifold. I believe there is a need for small alterations in design which allow tools reaching and turning manifold to head studs in a compact area. Installing the stock manifold was a piece of cake. It still runs the SS2, I will take it back to Trent for some dyno runs on Monday. Assume no timing reduction while power and torque curves mirrors, then that would possibly confirm my $500 alteration work perform as good as some of the $1000+ hand made items.
  8. hypergear
    probably in a week or two's time. will post up some photos as its getting installed.
  9. hypergear
    It is now complete and perhaps how Nissan should've designed them in the first place.
  10. hypergear
    Updates: This is what the manifold is like after its been jigged up and reading for welding:
  11. hypergear
    Best to see an photo. Damages on the top means foreign object while on the side means cartridge failure or bent shaft. Its rare to see an compressor wheel break while without the presence of foreign object or cartridge failure this days. This happens only if the compressor wheel it self is not designed for high shaft speed or high boost applications. Those type of wheel generally has very straight and tall blade profile, like certain version of the To4bs that are made for generators.
  12. hypergear
    I only have 50mm gates. that will work. For the turbo and engine size, any thing 38mm and above is fine.
  13. hypergear
    The gate I can supply at $200, welding and machining and materials is $300. So all up is $500. you need to adjust the screamer pipe off the gate a little as I don't know how much exhaust clearance you might have.
  14. hypergear
    I need to know the turbo's profile, been .63 it would should be a smaller G1, G2 or the older TR43 series. Also I need to know the date of when the turbo was purchased. There has been many updates made since. Generally they need to have a large metal induction pipe, free flow exhaust and a good tune. assume those are at presence I would dump bit more boost, and that should make it into around the 350hp mark assume it is a G2 profile. External gate also appears to work well in combination of factory exhaust manifold. Depending on the hp you are chasing for, larger .82 rear housing is recommended for any thing above 350hp. and those can be made to suit your current turbine wheel. Also just noticed you are located in Perth. If that is the case I recommend getting your tune checked at All start garage.
  15. hypergear
    its likely to be an occurance of high level knock. engine light doesnt come up unless knock level goes beyound 60 means danger. the sound you heard is probably detonation. i would take it straight back to the tuner for a check up.
  16. hypergear
    At moment you will be looking to spend $500 to get one done on exchange basis. and that is very little money for the amount of work involved.
  17. hypergear
    Lot more money and not better result. is that 3076 in a .82 internally gated rear housing? Having said that its an out come of a package instead of a turbocharger alone. As a bolton option it isn't unreasonable, and rarely any one makes their desired output in the first go. Either way, the most your are likely to see on paper with current setup is roughly 280rwkws. For trouble shooting I would drop the exhaust, try a different pod filter, and a different cooler. Some of the small alterations do make a big gain. Ultimately a proper high mount manifold and external gate definitly helps with top end power.
  18. hypergear
    with supporting mods i found top end power wise all comes out similiar. just smaller engines needs more boost.
  19. hypergear
    Also since stock manifold is a twin plus log manifold, I would prefer to keep the way it is specially when its no longer restrictive. So external gates can be added to the turbine housing like: But unless its been worked, External gate would still perform better when fitted on to the manifiold.
  20. hypergear
    The I have two stock manifold that I can work around with. It will have to be on exchange basis. means I will hold a deposit for the donor manifold till stock manifold is received. Or just send in an donor manifold to be worked with. The billet SS1PU for SR20det is retailed for $1000 including actuator. It can be built as a OEM bolton turbo for S14 or S15 (benjo fitting) with factory comp housing, It does not require after market oil lines, and certainly do not require and external gate to perform. How ever oil line is only required when fitting onto a S13s.
  21. hypergear
    Yes can run stock comp housings on those. Some updates with factory exhaust manifold fabrications. Well yes it is a not an welly engineered part. The port don't match up with the head as we already known, they had huge lumps in side the collectors, looks like they were trying to seal the bolt holes when the bolts aren't fastened. The lump took almost 40% of the total volume area that merged cyc 4 5 6. That really explains why its always the last few cycs that blows up when ever is an engine failure. This is what they are like now, with the top half milled, lumps cleared out, and I'm going to weld steam pipe over the top to increase the overall volume of the manifold log.
  22. hypergear
    93 model R33 GTST Forgied CP pistons, valve springs and stock every thing else. 800cc injectors 600x300x75mm Front mounted cooler Xforce 3inch turbo back exhaust Profect B electric boost controller Brea bolton manifold. SS2 prototype (290612) Internally gated. 14psi actuator, internally gated. 4inch intake pipe Adaptronic Plugin Greedy EBC Further evaluation on the SS2. it made 337rwkws on e85 externally gated it made 337rwkws at 18psi peek just touching 20psi. I've also trailed it based on internal gate running boost controller and straight off the actuator. The solid red and green are from internal gate, Green is internal wastegate pressure: Boost curve for all runs. Also same car specifications, trailing SS3 prototype. made 387rwkws @ 24psi In fear of snapping con-roads it was done on a short 9 sec ramp, so the curve on paper does appear laggier then what it actually is.
  23. hypergear
    Further evaluation on the SS2. it made 337rwkws on e85 externally gated at 18psi peek just touching 20psi. I've also trailed it based on internal gate running boost controller and straight off the actuator. The solid red and green are from internal gate, Green is internal wastegate pressure: Boost curve for all runs.
  24. hypergear
    If its been high flowed then you might want to check and make sure the wastegate assembly is tightly shut and pre-loaded. Any leakage around the gate area would affect down low response. You can possibly run the electric turbo as sequential, its an idea i'm looking to trail in near future. need a spare battery and lot of work on intake and cooler pipe to setup.
  25. hypergear
    Here's a Electric turbocharger that powers the car to 3psi even the engine is at 0 rpm with car key out ignition. lol Pretty big difference in torque down low No its not for sale. Just a hobby I'm building. Any way, if it is a stock turbo and you find it laggy then it might not have all of its turbine wheel, but assume its fully functional and so's the car then you might consider trade your R33 with some thing high comp NA.
×
×
  • Create New...