scotty nm35 Posted September 17, 2010 Share Posted September 17, 2010 What I like is how the boost drops down to 18psi from 6,000rpm onwards, reduces a bit of stress on the engine for the top rpm. I would have thought the main stress on the engine is as boost comes on and you get the 20psi rush. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451463 Share on other sites More sharing options...
l0WRB Posted September 17, 2010 Share Posted September 17, 2010 looks very lazy 2 build boost Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451734 Share on other sites More sharing options...
Trozzle Posted September 17, 2010 Share Posted September 17, 2010 Yep. Getting a better idea of what's causing it though, I know exactly why it isn't building boost. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451760 Share on other sites More sharing options...
Harey Posted September 17, 2010 Share Posted September 17, 2010 I would have thought the main stress on the engine is as boost comes on and you get the 20psi rush. Hmmm I mean 20psi anywhere is causing stress on the engine but I believe it would cause less stress if it happens between 3-4,000rpm instead of 6-7,000rpm. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451776 Share on other sites More sharing options...
scotty nm35 Posted September 17, 2010 Share Posted September 17, 2010 Hmmm I mean 20psi anywhere is causing stress on the engine but I believe it would cause less stress if it happens between 3-4,000rpm instead of 6-7,000rpm. I think you will find there is more air/fuel entering the chamber at lower revs and the crank is accelerating violently around that point. It would depend what your torque curve looks like of course, and the boost curve. Most rod failures at the top end would be due to lack of oil more than anything wouldnt they? Perhaps one of the tuners here can tell us where the rod failures seem to occur? Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451797 Share on other sites More sharing options...
Lithium Posted September 17, 2010 Share Posted September 17, 2010 Tuners ideally wouldn't be present when rod failure happens, but the rods suffer far more from extra revs than boost itself. Obviously more boost and more revs are going to compound it, but with a good tune I'd say 4500rpm at 20psi is going to have nothing on 7500rpm and 1bar. Detonation is the other thing that owns rods.... Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451841 Share on other sites More sharing options...
wolverine Posted September 17, 2010 Share Posted September 17, 2010 surely the pressure in the cylinder from the combustion process is much greater than anything else, hence tuning is the main issue like Lith is saying. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451855 Share on other sites More sharing options...
Lithium Posted September 17, 2010 Share Posted September 17, 2010 surely the pressure in the cylinder from the combustion process is much greater than anything else The force of a controlled combustion process (ignition wavefront chasing the piston) has nothing on detonation, the majority of the stress is pulling the piston up and down the shaft at funny angles. Remember the piston will be going that way anyway... the bang just speeds up the rate it does it Keeping the RPM to a sensible level and a good tune can keep for a fairly happy grunty engine for ages though there is naturally going to be faster wear when the pressures are up. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5451941 Share on other sites More sharing options...
Trozzle Posted September 17, 2010 Share Posted September 17, 2010 I think I may have temporarily fixed my boost issue. I won't go into detail of what's causing it, but I know what it is just not why it's happening. Dicking with the actuator rod seems to have resolved it, and I'll be putting it on the rollers again Wednesday to have the tune touched up etc. Thanks again to Stao for all the info and support he's given me over the phone Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5452027 Share on other sites More sharing options...
hypergear Posted September 20, 2010 Author Share Posted September 20, 2010 Quick update: This is for people with certain models of WRX or Legacy. This is the high flow service for the RHF5 factory turbo chargers. Which we modify them in to sleeve / BB 2860RS specifications. Good for 320HP. Please click below for more information: Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5456690 Share on other sites More sharing options...
Crans Posted September 20, 2010 Share Posted September 20, 2010 I think I may have temporarily fixed my boost issue. I won't go into detail of what's causing it, but I know what it is just not why it's happening. Dicking with the actuator rod seems to have resolved it, and I'll be putting it on the rollers again Wednesday to have the tune touched up etc.Thanks again to Stao for all the info and support he's given me over the phone Details and your theory would be good and might help others like myself battling lag Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5456890 Share on other sites More sharing options...
hypergear Posted September 20, 2010 Author Share Posted September 20, 2010 Generally this happens when the mechanic tries to rotate the housing or part the turbo for unknown reasons without adjust the actuator rod to the right length. Tozzle's turbo was parted by his mechanic pre-installation. I'm not sure if all bits lined up back to what it was. By design nothing should hit or Jam, and we check that before it was sent out. ATR43 Turbocharger involves labor from 3 experienced engineers to complete with many man hours spent. I'll be happy to go through our work, in case of any of our human errors or defects at no cost as part of our warranty policy. Crane: With your ATR28 unit, I've asked you to return it for checkup for numerous times, the end result is beneficial to your self. You do not have to worry about warranty expiry, No charges will be laid on you, So please act. Please do contact us or email us for assistance if any one else experiencing any difficulties with any of our services. We are here to help and assist. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5457032 Share on other sites More sharing options...
Trozzle Posted September 20, 2010 Share Posted September 20, 2010 As Stao said, my mechanic's derped. HOPEFULLY I can conclude this was the case when I have a chance to remove the dump pipe and have a looky, then get it sorted. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5457298 Share on other sites More sharing options...
Crans Posted September 21, 2010 Share Posted September 21, 2010 Stao, Yes I do plan on sending the turbo back to you to get checked out but i have to wait until i can have my car off the road for a week or 2. Public transport in my area is pretty sad. I will try and remove it this weekend. I had to clock my turbo my self as nothing lined up on the rb25, i cant see that the actuator is being fowled on anything, but i aint no turbo expert, hopefully it is something simple like that Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5457490 Share on other sites More sharing options...
hypergear Posted September 23, 2010 Author Share Posted September 23, 2010 Crans: Well Its a ATR28 not ATR43 so there is a slight difference in housing position. Before you remove he turbo. Can you check to see if your Vtec controller is working? I'm currently having intermediate issues with it and there is a massive difference in response when its playing up. See if you can get a Tick sound when power is connected to the controller. Little update: We are working on Ceramic ball bearing cartridges at this stage. its very difficult in finding the right bearings and modifying bearing housings to fit. It will be a water cooled Duel ceramic cartridged core. Should have a hopefully working prototype this weekend. Fingers crossed. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5463183 Share on other sites More sharing options...
hypergear Posted September 27, 2010 Author Share Posted September 27, 2010 This is a slight twiked version of ATR43G3 .82 rear that is commercially available. It made 290rwkws@17psi with actual 200rwkws @ 4000RPMs. Turbo's capable of pushing over 300rwkws. Customer's concert about his engine. Fully stock R33 RB25det engine with stock cams and cam gears 98 fuel. So for 200rwkws by 4000RPMS in .82 rear is possbile, and we've done it on a fully standard setup, 98 fuel with our turbocharger. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5468804 Share on other sites More sharing options...
SimonR32 Posted September 28, 2010 Share Posted September 28, 2010 How was it slightly modified? Looks like a very good result for 17psi Got a boost graph? Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5469246 Share on other sites More sharing options...
hypergear Posted September 28, 2010 Author Share Posted September 28, 2010 How was it slightly modified? Looks like a very good result for 17psiGot a boost graph? Its the difference in comp wheel engineering, and with a .70 comp housing. It was fairly responsive, had full boost by 3800rpms. I didn't get a boost curve, I will see trent again soon and grab a copy. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5469264 Share on other sites More sharing options...
Lithium Posted September 28, 2010 Share Posted September 28, 2010 Nice solid result - I've never doubted the possibility of 200kw by 4000rpm.... I'd be able to do it fine with my GT30R but I'm personally not keen enough to push the boost through a stock motor needed to make 200wkw by 4000rpm (would be around 20psi or so), but its a nice power delivery. Seems to come on a bit faster than the other ones you've posted - should drive well. Be interesting to know what was changed! Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5469271 Share on other sites More sharing options...
Trozzle Posted September 28, 2010 Share Posted September 28, 2010 Stao, what's the main difference between the G1 - 4? If I have the G2 0.82 and am making 285rwkw on 15psi, I would expect similar on 17psi as above. Not that it's a bad thing at all just curious as to my results compared to the above. Link to comment https://www.sau.com.au/forums/topic/261613-hypergear-turbochargers-and-high-flow-services-development-thread/page/50/#findComment-5469274 Share on other sites More sharing options...
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