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hypergear

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Everything posted by hypergear

  1. hypergear
    Following up on the ATR43SS3 BB VNT turbocharger 93 model R33 GTST Forgied CP pistons, valve springs and stock every thing else. 800cc injectors 600x300x75mm Front mounted cool Brae high mount exhaust manifold HPVA 50mm external gate plumbed back. Xforce 3inch Cat back exhaust 100 Cell Cat Profect B electric boost controller 4inch intake pipe Adaptronic Plugin Power so far is 407rwkws @ 24psi E85 Fuel HyperGear ATR43SS3 CBB VNT Turbocharger. Turbocharger reached peek power of 407rwkws on 24psi of boost This result was archived by a large size turbocharger using stock cams and stock cam gears and boost. It is not enhanced through larger cams or cam gears. This turbocharger had big turbo's top end while retains small turbocharger's down low. I've overlaid my result against result from a high flowed stock R33 21U turbocharger.
  2. hypergear
    Yes they will work. Not sure how much room is there as it will require two actuators for an internally gated setup. SS3 VNT Final result of peek 407rwkws with 24psi on Stock inlet manifold, cams and cam gears. it read 265rwkws @ 4000RPMs and 95rwkws @ 3000RPMs. Peek 24psi by 3750RPMs and Made 20psi by 3700RPMs. I'm still off the target of 3500RPMs. Its reaching the limit of VNT capacity working with such a large size turbocharger. Even tho, still super responsive to drive on road.
  3. hypergear
    Next week I will be finalizing the tune on the SS3 so probably the week after. At moment the problem is manufacturing them at affordable cost, I don't think its reasonable today to charge some one $2500 for a turbocharger regardless how good it might be. Unless its made out of gold.
  4. hypergear
    Because the GTRS turbine is only capable of pumping up to 280rwkws maximum so any thing that is larger then what ever the limit is, is totally unnecessary, bit like the 82mm compressor wheels on S14 T28 turbines that some Chinese manufactures dumped on ebay. The GT2876x is probably useful when comes to mild V6 or V8 engines upgrades which you can run a single turbo manifold with half of the engine capacity to drive one turbocharger, while using the large compressor to force feed all cylinders.
  5. hypergear
    SS1PU VNT, prediction is 20psi by 2800rpms and maxing out at 320rwkws. The external gate will be screaming all the way. might be able to make it run internally gated, more tests will be carried out.
  6. hypergear
    I want to fully explore the potential of the new idea, and find a way to manufacture those at affordable pricing. Don't have SS1.5 on SRs at moment. only have it with Rb25det which is super responsive.
  7. hypergear
    It has nistune installed. But the response and torque delivery is identical to factory turbo. So if you run it on 10psi with stock ecu it has stock turbocharger's drive ability.
  8. hypergear
    I can high flow stock turbo so they work fine with factory ECU and still make bit more power then standard. But they don't make much power if you have plans for supporting mods. Light blue is factory turbocharger.
  9. hypergear
    Will be in process of building a SS1PU using VNT system. Pretty confident it will match or beat HKS 2530's response while making same power as a 3071. This will bring some joy for RB20det owners.
  10. hypergear
    Little update. To make the SS3 even more responsive I've had it remade using ceramic roller bearing cartridges instead of steel. With the vacuum leak repaired this turbocharger is super responsive, It has made a very fast car. Can feel the turbocharger whistle to boost with touch of throttle and goes blastic as it revs out. Made me thinking, wither if the SS2 BB VNT should be more responsive without that vacuum leak. I've taken a little shutting down video footage from my SS3 VNT CBB turbocharger, as you can see this is a very big turbo, 394rwkws on E85 is not a real lot for some thing in this size. Goal is 20psi by 3500RPMs, Its going back for a return next Tuesday, and I'm very positive about it.
  11. hypergear
    No its just all air cooled under the bonnet. We were playing with it few weeks ago and didn't notice the vacuum hose. It now has also picked up some thing like few hundred rpms of response.
  12. hypergear
    Just found out the vacuum hose to my external gate was melted as it was touching the dump pipe. lol. that explain the strange wavy boost curve. Taking it back for another tune and posting more result next week.
  13. hypergear
    Well I didn't find there are much differences between Status dyno and Mainlane they all within 5kws. The mileage reading from quarter mile run is a pretty good prediction for power level. With ATR43G4 that I made 431rwkws with, that was running 28psi of boost. The turbocharger is equivalent to a 3582 in .70 comp and .82 turbine. its not much different compare to others using the same turbocharger at given boost level. The SS3 is a large turbocharger, So it is expected to out put that level of power, Try the FP 3076 with a solid .70 none anti surge cover, it should be maxing out the same result using a lot less boost. Had the CAS replaced, and the car is running fine now. It had the SS1PU down low feel and went crazy after the external gate opens. The Micky Thompson are now hopeless, wheel spinning from 4000 and on wards in third. Can run a ATR28SS1.5 that should be a more responsive version of the GT2871
  14. hypergear
    One more thing is The other car which some of yous are comparing with has cams and cam gears with much higher boost Level. Which means I will not be able to reach his result using his turbo, how ever he should he able to beat my result using my turbo.
  15. hypergear
    Thanks for the feedbacks. Dynosheet to share?
  16. hypergear
    93 model R33 GTST Forgied CP pistons, valve springs and stock every thing else. 800cc injectors 600x300x75mm Front mounted cool Brae high mount exhaust manifold HPVA 50mm external gate plumbed back. Xforce 3inch Cat back exhaust 100 Cell Cat Profect B electric boost controller HyperGear Latest Ball bearing ATR43G3 4inch intake pipe Adaptronic Plugin Power so far is 395rwkws @ 23psi E85 Fuel ATR43SS3 VNT Turbocharger. It made 394rwkws on 23psi of boost so far I must address this result was archived by a large size turbocharger using stock cams and stock cam gears and boost. It is not enhanced through larger cams or cam gears. As shown, the boost behavior in reference to degrees of freedom given by the actuator controlling the VNT nozzles. The whole boost curve shifts to the left as the nozzles stayed in the deactivation position for longer. Boost curve with VNT system fully engaged and fully disengaged: I should be able to get 20psi by 3600RPMs with few more hours of dyno time like what the fully engaged and disengaged boost graph shown, then disengage after it reaches that point. As we were adjusting the boost controller for dyno runs the car experienced some ignition problems so we had to call it a day. It will go back for any other run once I have it rectified.
  17. hypergear
    Its a Series 1. They all have VCT.
  18. hypergear
    It made 250rwkws by 4000rpms. It provides very consistent Gforce, turbo comes in with very little throttle and pulls crazy. I should be able to get 20psi by 3600RPMs with few more hours of dyno time like what the fully engaged and disengaged boost graph shown, then disengage after it reaches that point. I can now control how much lag I want with a boost controller.
  19. hypergear
    Boost curve with VNT system fully engaged and fully disengaged: I compared it with a earlier turbochargers that made same power range: SL25.5 (or billet T67)
  20. hypergear
    Some SS3 VNT update. The system worked perfectly and I was been able to control nozzle movement through an ordinary boost controller. It made 394rwkws on 23psi of boost so far I must address this result was archived by a large size turbocharger using stock cams and stock cam gears and boost. It is not enhanced through larger cams or cam gears. As shown, the boost behavior in reference to degrees of freedom given by the actuator controlling the VNT nozzles. The whole boost curve shifts to the left as the nozzles stayed in the deactivation position for longer. How ever by doing so it also made the exhaust gas temperature very hot. As we were adjusting the boost controller for dyno runs the car experienced some ignition problems so we had to call it a day. It will go back for any other run once I have it rectified.
  21. hypergear
    They are coded in pretty simple terms, I guess I should have made it more transparent. ATR: Just a name standing for "Advanced turbo research" followed by: "Turbine pattern" "Type of comp wheel" "HP rating" "Turbine type" "Bearing type" "25": .64 and smaller T2x turbine housings "28": T2x SR20det turbine ended turbochargers "43": T3x universal turbine ended turbochargers "G" Cast compressor wheels: G1: 320HP G2: 450HP G3: 500HP G4: 600HP "SS" Billet compressor wheels: SS1: 350HP SS1.5: 400HP SS1PU: 470HP SS2: 500HP SS3: 550HP SS4: 630HP Like the SS2.5 high flow: SS2 500HP compressor working with a Larger then usual (G4) turbine wheel made to extract power from tinny turbine housings like the 21Us. "": Usually they are built in journal bearings "BB": Steel Roller bearing "CBB": Ceramic roller bearing FNTA: Fixed turbine nozzle with wide opening angle (More power, less response) FNTB: Fixed turbine nozzle with narrow opening angle (Better response, less power) VNT: moving turbine nozzles. Eg: ATR43SS3BB.82VNT T3x based turbocharger Billet wheeled compressor in 550HP range Steel roller bearing .82 turbine housing Moving turbine nozzles. And ATR43G3 .82b T3x based turbocharger Cast compressor wheeled in 500HP range Journal bearing .82 turbine housing with narrow opening angle High flow codes: Standard basic high flow. "PU": Powered up. including larger .82B turbine housing and stronger actuator "SS": Billet compressor wheeled high flow profile. Eg: R33 PU high flow. Means a customized 500HP high flow that has an .82 type B turbine housing with a stronger actuator. Recently introduced turbochargers: ATRSLxxx SL: L2 turbine ended turbochargers followed by volume size: 8cm, 10cm, 12cm 20.5 / 25.5G: Redeveloped billet compressors based on the original wheel SLSS2: L2 turbine ended turbocharger using SS2 compressor front end. FNT, VNT, CBB and BB extensions can also be added to ATR"SL" category if they've been built that way.
  22. hypergear
    Also there is a update on all R33 and R34 turbocharger high flow profiles. I'll be going up in one size up from the standard high flow. should increase power by about 10%. Also ATR43SS3 VNT turbocharger is built. This time the lever is working 100% with the actuator it can be activated with about 5 psi of boost under load. I should've taken a photo before installation, but I guess I'm too keen to trail it on road. Feels pretty responsive, hopefully be hitting close to 400rwkws with full boost around 3500rpms.
  23. hypergear
    Thanks for the feedbacks. Here's a set of GTR high flows that Ive done recently. Using ATR28G1 chra, which is in 60mm comp and 56mm turbine
  24. hypergear
    I can make up an external gate for you but you will need to see brae autofab for manifold.
  25. hypergear
    SLSS2 and SS2 is $1100 externally gated.
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