Lithium Posted February 14, 2013 Share Posted February 14, 2013 122mph sounds a tad unrealistic for 250kw tbh - complete turn around to the other turbos which were getting too low for the power! Will be interesting to hear what it does on a proper dragstrip Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6752158 Share on other sites More sharing options...
Manuel Kasko Posted February 14, 2013 Share Posted February 14, 2013 122mph sounds a tad unrealistic for 250kw tbh - complete turn around to the other turbos which were getting too low for the power! Will be interesting to hear what it does on a proper dragstrip Trying to organise a spot on a different dyno tomorrow. Small dyno day down here in Canberra, so I will see what happens. Also in a few weeks I will get up to the drag strip in Sydney Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6752181 Share on other sites More sharing options...
Plattsy Posted February 14, 2013 Share Posted February 14, 2013 someone point me to the thread which shows you how to modify standard oil banjo to suit highflow please? Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6752183 Share on other sites More sharing options...
Manuel Kasko Posted February 14, 2013 Share Posted February 14, 2013 http://www.skylinesaustralia.com/forums/topic/417373-whoretown-v-in-loving-memory-of-bob-1991-2013/page__st__11220 Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6752226 Share on other sites More sharing options...
Plattsy Posted February 14, 2013 Share Posted February 14, 2013 http://www.skylinesa...page__st__11220 motherf**ker. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6752243 Share on other sites More sharing options...
Missileman Posted February 15, 2013 Share Posted February 15, 2013 (edited) 250rwkw r33 (Full weight) 14.300 @ 122.6mph 14.909 @ 119.92mph Does this sound about right? Got these results from the SAU Nats Airport run Have you weighed your car? I drove mine down to the local council refuse tip, and weighed it on both weighbridges to get and average. It urns out a stock auto R32 GTST with a full tank of gas weighs 1385KG. A tad more than the 1280kg quoted in the Skyline book. Obviously you need to know your own weight and subtract it from the reading on the weighbridge. Edited February 15, 2013 by Missileman Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753005 Share on other sites More sharing options...
ARTZ Posted February 15, 2013 Share Posted February 15, 2013 Have you weighed your car? I drove mine down to the local council refuse tip, and weighed it on both weighbridges to get and average. It urns out a stock auto R32 GTST with a full tank of gas weighs 1385KG. A tad more than the 1280kg quoted in the Skyline book. Obviously you need to know your own weight and subtract it from the reading on the weighbridge. was talking to a weighbridge guy a while back...said the averagely loaded commodore (inc driver ,fuel, junk in the trunk etc) weighs in at 2 tonne Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753029 Share on other sites More sharing options...
Missileman Posted February 15, 2013 Share Posted February 15, 2013 (edited) What surprised me was the entry bridge weighed the car at 1395 and the exit weighed 1375kg. Our council is ripping us 20Kgs Edited February 15, 2013 by Missileman Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753038 Share on other sites More sharing options...
jet_r31 Posted February 15, 2013 Share Posted February 15, 2013 Its actually very fast, the power delivery is so gradual theres hardly any wheel spin. I'm getting some mickey thompson drag tyres and hitting the strip soon.I think this one can get into the 11sec mark slick and front runners...should do 10's... cheers darren Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753290 Share on other sites More sharing options...
hypergear Posted February 15, 2013 Author Share Posted February 15, 2013 So stao what specs is that turbo you put up? Same wheels as a 2535 but larger trim.? Originally I thought 270rwkw would be possible on e85 but the more I think about what r31nismoid said the more I think it will run out up top as the -7 and -9s do on e85. Plus the rear housing is a tiny .64. Wonder how a 2535 would have gone if they made a slightly larger ar rear housing.??? Does anyone think it would be worth putting a billet wheel in. Would it make any difference. For the SS1, It was too small for a Rb25det, I only recommend it for Rb20/SR20 det engines and they works well. I did built a .86 version of it and it appeared that compressor went out of puff around 5000RPMs resulting a sharp dip in the power band maxing out similar power level to the .64 52T and 56T 76mm wheels were also trailed, the EGT shot through the roof. It was a long project but the .86 version did ended up working and refined. the development and testing blog is in this thread if any one like to read, the final version is called the SS1PU. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753492 Share on other sites More sharing options...
hypergear Posted February 15, 2013 Author Share Posted February 15, 2013 That model has been further developed into two additional models, they are the billet SS1 and SS1.5. Results are in page 340 Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753501 Share on other sites More sharing options...
hypergear Posted February 16, 2013 Author Share Posted February 16, 2013 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. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6753798 Share on other sites More sharing options...
XRATED Posted February 17, 2013 Share Posted February 17, 2013 I've seen/used/serviced ceramic bearing turbo/other applications in stationary and large marine engine applications... Also in refrigeration/air compressor compressors. Never seen a failure other than lubrication contaminant. Although, most of those applications were slower shaft speeds, less heat... but heavier loads. Ceramic bearings are also used gas turbine engines... increased efficiency (less rotational friction) and better heat handling (less thermal expansion and heat load). Cheers Justin Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6755196 Share on other sites More sharing options...
hypergear Posted February 19, 2013 Author Share Posted February 19, 2013 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. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757546 Share on other sites More sharing options...
Lithium Posted February 19, 2013 Share Posted February 19, 2013 Trying to organise a spot on a different dyno tomorrow. Small dyno day down here in Canberra, so I will see what happens. Also in a few weeks I will get up to the drag strip in Sydney How did that go? I saw in another thread that the 119-122mph trap speeds for for 800m - not 400... that explains a lot! Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757564 Share on other sites More sharing options...
GTScotT Posted February 19, 2013 Share Posted February 19, 2013 i've just ordered a lot of gearbox seals and bits to fix my leaks. I'll have us an SR SS1PU drag result soon. Will give hy_rpm a yell too, see how the two compare. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757574 Share on other sites More sharing options...
hy_rpm Posted February 19, 2013 Share Posted February 19, 2013 Kando vs Hypergear who will win ? Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757597 Share on other sites More sharing options...
hypergear Posted February 19, 2013 Author Share Posted February 19, 2013 Will not win against external gate and proper manifold. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757621 Share on other sites More sharing options...
hy_rpm Posted February 19, 2013 Share Posted February 19, 2013 (edited) Well I'm on std manifold and int gate aswell ? My clutch isn't the best but should handle a few more runs Edited February 19, 2013 by hy_rpm Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757661 Share on other sites More sharing options...
Hattori Hanzo 69 Posted February 19, 2013 Share Posted February 19, 2013 looking at running water meth injection, whats a safe boost level for the tATR43? Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/353/#findComment-6757675 Share on other sites More sharing options...
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