hypergear
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Everything posted by hypergear
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Garrett T3x bearing housing is slightly shorter then Hitachi bearing housings. So you need to slightly modify your water lines. I covered that in my 30 pages high flow thread, lol. I'm indexing it at moment. Car's back on road?
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Few more updates made for the ATR43 and PU high flows .82 turbine housings. They now installed with 33mm wastegate flap working with a 30mm internal gate port. ( 2mm+ for the flap, 1mm+ for the port). Not much of effect with RB20/25dets, but will make lot better boost control for larger sized engines. Also this is a little unconventional method creating slight boost spike or consistent boost curve upon to red line. fixing the issue of slight boost drop due to actuator's sping strength. It is updated into all ATR43 / PU high flowed turbos, I found it particularly useful for people who's looking to hold 20~22psi with internal wastegate actuator. Photos showing: Wastegate can be fully operated by actuator or partially operated. -
Like if its rubbing fins, with broken wheels and etc it will affect. Unless that it will be pumping exact amount of air as if it was new. I think it should be expressed as: Well if the turbo is: not sized, rubbing its fins on housings, or've lost parts of its wheels, then it will make absolute none difference doesn't matter how old it is. Punctuations makes lots of differences
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Well if the turbo is not sized, rubbing its fins on housings or've lost parts of its wheels then it will make absolute none difference doesn't matter how old it is. But if its leaking oil then it might shoot some to the engine and cause power issues.
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The Oil seal on exhaust side is just a Stainless steel C clip. This part only wears when you have abnormal amount of shaft play or if its submerged into engine oil means you have a flooded bearing housing. So if you have no shaft play then the only thing I would be checking is the drain or find out why my oil can't drain out of the bearing housing considering I have 20mm drain slot vs 20 thou oil feeding ports. The other thing which can cause that is from over filled engine. Ie: Oil level in engine sump submerges the drain port which build up oil in side the drain pipe to cause bearing housing flood. Also does the turbo make any sort of strange noises on power off? Ie. very light zz zz zzzz zz sort of sound? If do exists and every thing engine side seems to be nominal then you might want to remove the turbo and send it in or take it to a convince turbo service center for a quick inspection.
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We use .63 and .82 on PU high flows. Depends on the engine size what people's requirements. Cerbra: Yes I've used the new casting for your turbine housing. Titan: The BB units don'e just leak oil due to a oil seal problem. Its normally got bearing issues or if the bearing is flooded. Check to make sure the oil drain is pointing towards the ground and horse is kink free.
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The high pressure actuator only seems to work with .82 housing with GT30 or 35 turbine wheels. Can't hold boost on OP6 turbine housings unless you crop some materials off the wheel which you will lose about 10% response, in exchange you get more torque and top end power. All current PU high flowed units and ATR43 in .63 units will be installed with the latest housing casting.
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Yes I have your ready tomorrow. I just got our newly designed castings which allows better wastegate operation. This is now updated for all .63 PU high flows and ATR43 units.
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If your engine is very healthy it should have close to none in the catch can.
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Hi Trent. I haven't seen any TR43is on RB20dets yet. the old school TR43 have made 246rwkws on a stock RB20det on 22psi. This one I think it will do about 255~260 with about 20psi of boost. Do check with skyline01999 might be able to get it off him for a good price. Remember this ATR28G3 high flow on a TD06 20G? It managed 258rwkws on a SR20det with Tomei stage 1 cams and usual mods on 17psi. it have gained 28kws and lost 500RPMs in response.
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For the TR43i upgrade it is better to sale it out right and then buy a new turbo because once we work on it you will lose a good working turbo. With Crans. Yes we can install a 38mm external gate on it if you want. we charge $150 for welding and screamer pipe materials. We can supply our 38mm HPVA external gate with Tail diaphram for $300 or a Tail external gate for $380.
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The ATR43G3 run a different turbine wheel then TR43i. They make full boost about 4200RPM in .82 turbine or about 3800RPM in .63 turbine. Power wise I've managed 273rwkws on 17psi with .63 housing and had customer reported 282rwkws on 17psi with .82 housing. CHRA Max power wise the ATR43G4 made 44kws more then TR43i on 24psi on the same car. The testing engine was a built CA18det. (300rwkws vs 344rwkws)
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I've designed and machining my own bearing housing out of a block of soild steel at this stage. so hopefully things work out I expected. I will be using a 360 degrees thrust bearing with 2x CB bearings. Also would any one know why most CB bearinged turbos would have one bush bearing it the rear?
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We've been selling Tial external gates and using their Diaphragm for our own gate. I haven't had any issues so far. So I will be voting for tial.
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Price on those is $1450 including braided oil feeding line and GST. will cost $150 more If you want external gate built it, which is highly recommended for high boost applications. This also includes 12 month warranty for all high performance applications. Means your warranty does not void if you run 24psi every day like I do and drift it 24/7.
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Yes you need to run 20psi to get about 260rwkws with stock rb20det. This engines need abit of boost to make power. For comfortably I would say around 245rwkws. with about 18psi of boost.
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Hi George you can use our ATR43G3 in .63 turbine. It can get you about 240~60rwkws internally gated on RB20det with full boost around 4500RPM or some thing like this: This is a ATR43G3 .63 turbo with built in External gate that is designed to bolton to stock RB20det's manifold, dump, and all lines. Above was built for a Rb20det customer. Also like to add all of our HPVA external wastegate are equipped with a Genuine Tail 38mm external gate Diaphragm:
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Thanks for the input guys. Our engineers argues that: Because the turbo works on a moving vehicle, it must coop with on road conditions such as pumps, rough surfaces, off road and etc. Even ceramic bearings it self is hard, light, but brutal, it doesn't have the strength as steel, there for lot more sensitive to minor oil contaminates and easier to crack under thrust. Then they gave few cases which a CB turbo failed and how customer/friend replaced it for a Garrett steel BB turbos and happily everafter blah blah blah which I'm not really interested as most of them are very conservative. I had a look at few CB turbo manufactures and found most of their turbos runs of one single CB cartridge and one sleeve. any one knows or have thoughts about why they don't run twin CB cartridges?
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Hi Every one. Ceramic Ball bearing turbochargers has been out for a while, been recommended for high power and high response. and there are few turbo companies currently building them. With few days of browsing I have managed to source a pair of ceramic bearing cartridges from US, and been told it has been used in turbochargers. I've discussed with my engineers about building ceramic ball bearinged CHRAs and every one are pessimistic about this project. Any one here is currently using Ceramic ball bearinged turbochargers? and any experiences based on its performance and life cycle against a normall Steel BB turbocharger. We appreciate your input.
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Its funny how they advertised that you can get 560HP out of .58 A/R turbine internally gated. Its just not going to happen. I would believe this is a typical mismatched KKR430 spec turbo falsely advertised to 560HP to rip off low budget consumers. and there is no way it can bolton to your OEM setup. If your budget allows we are happy to build you some thing to match your desired driving ability and power level using proper Garrett and Mallet components or high flow your current turbo
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Looks like every thing's running pretty good. It is smaller but the right turbo for your application. Also I would like to address. The secondary power and torque curve is not from our 3582. It is our 3582 CHRA in a unknow turbine housing by high flowing. It have performed differently in our .82 turbine housing. Would you have a copy of boost curve by any chance? I like to compare it with the sleeve bearing version of it in some atr43s
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The genuine Garrett GT30 internally gated turbine housing I have a listing for $650AUD including GST brand new in .82 A/R.
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Yes we can do that. The GTRS would be a smaller trimed 2871R. I'm also building one with larger comp trim. My engine is almost finished. I will put that on and see what happens.
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Little update: I've managed to build a "HKS2530" in a larger .86 T2x turbine housing with OEM RB25det bolton pattern for RB25det engines. Should produce identical amount of power with similar response and better torque for the Rb25s. Photos:
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There is a small nipple on top of the BOV which is connected to vacuum source made to press the BOV piston down under load. Please check to make sure that is connected and the vacuum source is after the throttle body. Or boost pressure will force open the valve after few psi and create a boost leak.
