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hypergear

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Everything posted by hypergear

  1. hypergear
    Yes that is Abe. He's spent lots of time die-grinding all the ports of the stock manifold. Can't get his result with a stock manifold. 58T in theory should be making more because it has larger inducing area. How ever the car was out dated for a service using 8000km old engine oil. Recent runs were done straight after a service. Have to admit my car drove heaps better with fresh oil too. That part is arguable. My main concern is better transition and throttle response, and the current version satisfy that criteria.
  2. hypergear
    The turbine can flow plentiful, it is a larger trimmed turbine originally engineered to use with small housinged high flows. With the stock exhaust manifold, I can't get any thing pass 322rwkws on e85 (-40kws=98 power), and that is a SS2 turbo making 375rwkws on a proper high mount externally gated. So there isn't much more I can do apart from modifying the actual manifold or build turbos that shifts boost curve band n forward. To compare result with pump 98 internally gated simply: Power: High mount E85 result - 40Kws from E85 - 15Kws External gate So the new G3 would make: 376 - 40 - 15 = 321rwkws On pump 98 internally gated with a free flow exhaust manifold and exhaust setup. Using factory manifold it will cap maximum power output to the 280rwkws mark. But Factory log manifold produces better response, in comparison by 150rpms. So G3 can do 280rwkws @ 20psi by 3750RPMs. Probably a 76mm wheel with complete G3 housing assembly. If I can get the SL2 to produce 376rwkws without revving passing 7000rpms with 20psi by 3500rpms would be pretty sweet. Thanks for the feedbacks. Will be looking forward to see you results with some cams.
  3. hypergear
    Welcome to A Brand new all better and all mightier ATR43G3 turbocharger. The Older 58T version is now retired. This turbocharger have out performed the older profile of the G3 in both peek power and response. Both turbochargers had roller bearing cartridges installed. Thin Yellow and Red (18psi) is the latest G3 Thick Yellow is the older 58T G3 This turbocharger stopped making power at 376rwkws @ 23psi.
  4. hypergear
    I should have been here 2 weeks ago missing by 0.89kws. lol Here it is, with blessing of Queen Elizabeth plus emu and kangaroo screaming (jks, had 50c Coin welded to my wastegate port). My car stopped making power at 431rwkws. Using Hypergear ATR43 G4 roller bearing turbocharger. The red line was from the latest roller bearing ATR43G3 that was used for dyno scaling. please ignore it. Factory engine with forged pistons (9:1), stronger valve springs. Stock cams, factory inlet manifold. Run was based on E85 fuel, high mount manifold, 50mm gate. (No need for big cams to crack 400rwkws, just need a huge turbo).
  5. hypergear
    Well it made 30kws difference in power with less boost compare to the L2 turbine. Also peeks boost at the exact same RPM which is pretty interesting (Do have slightly lower RPM to Boost ratio before that point, result overlay at page 351) This turbo needs to be able to work internally gated, So reducing the trim on turbine end will probably hurt that. Small trimmed turbine might work ok on smaller SR and Rb20 engines, When you are bored of the SS1PU and ready for a high mount I can trim one for you to your recommendations.
  6. hypergear
    Yes it has stepped down to 56T. No point going for a 58T if majority don't have a setup and a engine for that extra power. This one was focused on throttle and transition response. It makes an great every day road turbocharger within the budget. This casting is in steel as usual.
  7. hypergear
    This is the latest G3 turbocharger. It has stepped down back to a 56T from 58. I've focused it on better throttle response and transition response. The prototype about is built in ball bearing. It felt pretty good on road comes on boost with very light throttle. hitting the dyno again on Wednesday and see how it goes.
  8. hypergear
    Stock VLT should be some thing like .46, Skyline is in .60. There is no way you can run 30psi out of that. to handle 30psi it should have anti surge slot as well. Let me know when you want to work on your VLT. I got some thing in mind that should make same power with lot less boost.
  9. hypergear
    the engine's not standard From the video description: the car uses a std exhaust & inlet manifold and a std throttle body Engine has rods, pistons and a hydraulic cam upgrade. If you count the time of when its stepped into gas the dyno ramp seems to be 16secs. Factory VLT Comp housing is smaller then skylines, You can see the comp housing in this video is larger. GT35 rear end should be able to flow that easily, and work well with long ramp. since its internally gated the comp wheel should be some thing around a large trimmed 76mm or a 82mm wheel in a .70 housing. Just my prediction of what the highflow profile might be. Never knows, I don't have personal experience with VLTs. Mod your VLT identical to the one in this video, send me your stock turbo and it doesn't take long to figure it out
  10. hypergear
    looks like a 3582 or equivalent in .63 turbine housing, which should be enough to flow that sort of power. That engine would've had extensive head and cam work, But I'm no Rb30 expert.
  11. hypergear
    This is the G3's turbo's power to boost behavior from 15psi to 23psi. From 23 to 26psi it didn't gain any more power, means its at a point the turbocharger it self or the stock cam shaft has maxed out. So in a free flow setup the point of when it stops making power should be around 23psi. Assume the tuning side is perfect Exhaust manifold do make a huge difference, the manifold VS graphs are in my thread. The cooler pipe assume in 2.25/2.5 inches, don't generally affect top end power, how ever longer piping gains lag while short pipes makes better response. Cooler wise a good 600x300x75mm cooler will do the job. I'm abit suspicious with the Inlet manifold setup, as I've had customer loosing 40kws after change over (probably have done some thing wrong), so might want to double check that. Also check the Cam gear and the cam angles, I believe Trev mentioned about the cam dialing issues that he had with the Type B Cams.
  12. hypergear
    You will find the BB G3 with the latest comp profile changes that power delivery behavior by a lot. It smooths the power delivery pattern, which takes out that big launch behavior, sticks the car on the road better.
  13. hypergear
    Well to get fast time you will need small rims with fat simeslick tyres (hint from Trent), I used to skit all over 3rd gear with a G3 on my road tyres and that was a slow 330rwkws. Run RSRs or better will help heaps. After doing abit of reading on the net, its not a bad time for a stock weighted R33 internally gated, stock manifold on pump 98 at that power level, there is a huge difference in mid to top end range torque with high mount and external gate after 120km/h. But I don't know how the car run slower and slower after each pull. Also G3 is changing, I will post some photos of the latest G3 tomorrow, in hopping for the same power level with much better throttle response, it will also be equipped with the latest bearing and lubrication setup as well as optional ball bearing.
  14. hypergear
    lol its Toshi. does the forum automatically correct spell mistakes? Not sure how it ended up in Toshiba (its been corrected)
  15. hypergear
    For budget, contact Toshi on this forum. He will be able to do a mail order remap for your mods at cheap price.
  16. hypergear
    yes same postal address
  17. hypergear
    You can run till it stops making power. Around 24psi Yes I can rebuild your bush bearing G3 into ball bearing and updated comp housing. in this case I will swap you with the one that is currently in my car free. I will need your turbocharger back for a day or two for a small modification on the turbine housing as well as the comp housing. The ball bearing update can apply to all Gx, Gx based Rb highflows, SS2, and SS3 turbochargers.
  18. hypergear
    I've been running the BB G3 with the latest comp profile for about 1000KMs so far and it appears to hold together well. I can swap this one with any G3 owner for free. PM me if interested. Dyno results of standard and latest BB unit: http://www.skylinesaustralia.com/forums/topic/261613-hypergear-hiflow-service-continued/page-352 result only shown difference in 4th gear to floor. the transition and throttle response between the two is quite different.
  19. hypergear
    Will not win against external gate and proper manifold.
  20. hypergear
    Thanks for the info. It appears the steel bearings are much quiter in high boost. It is also much cheaper to stock, I will be looking into it a bit more. This is a pretty interesting turbocharger that I worked on recently. An IHI RH5 twin scroll, twin internal gated. actually has gate in individual pulses. It was very dead when it got here. Now high flowed into a SS1. twin plus VNT turbine is still work in progress, will do further trails once complete before further looking into building some crazy high flows using stock housings.
  21. hypergear
    After seen Roy mentioning about the TD06H I went through all TD06H dyno readings on Trent's dyno and did comparison against the SL2 turbine. TD06H turbine appeared to be laggier without making any more power. You can try our billet SS2 comped SL2s that is a step up from the standard 20Gs, or I think a standard highflowed turbo would make more power. depending on where the external gate is attached. won't make good results if it is welded on turbine housing, locating it to exhaust manifold would prove other wise. Cheap return flow cooler do have heatsoaking issue and takes much longer to heat sink compare to a good branded cooler.
  22. hypergear
    lol. yes, I have one that has been remaped by dr drift for a S1 R33 to for an OEM R34 turbocharger suit stock injectors and afm. you can have it for $200.
  23. hypergear
    You can buy those from BCB bearings. they comes in a pack of 20 for $8. They called E clips, size is 6mm.
  24. hypergear
    Swapped steel bearings back to ceramic rollers in the SS2. Its made very noticeable difference in down low throttle response, and I'm aware lot of turbochargers used in rally cars are ceramic bearinged for out of corner speed. How ever colleges and people I know in the trade choice to support steel bearings, more or less due to the durability of the ceramic surface under heavy load. The majority of turbochargers that we've repaired in the past are steel bearinged also, probably due to the quantity distributed, I have yet to receive a ceramic bearinged turbocharger for overhaul. Any of you guys experienced ceramic roller bearing turbo failures? if so how long have it lasted at what boost. Cheers.
  25. hypergear
    That model has been further developed into two additional models, they are the billet SS1 and SS1.5. Results are in page 340
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