hypergear
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Everything posted by hypergear
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ATR28G4 would be some thing similar to a GT3076. Its my daily car. I drive drive it around to deliver turbos. lol CA's modifications: Forgied pistons, Split fire coils, Nistune ECU, FMIC, 700CC injectors, Z32 AFM, 256dur/8.9mm cams, Tomei adjustable cam gears, ebay manifold and 3inch exhaust. Every thing else not mentioned are stock. -
Ok. This is our latest dyno result based on a ATR28G4 in a .64 T28 rear housing running on a build CA18det running 98 fuel. Car made 316rwkws at 24psi at this stage ( Note: see how the power curve is still rising. ). going to do a final tune in few days. This turbo would be making some mad power on RB engines using .63 rear housing. ________
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He drove off to Adelaide, probably come back in 2 weeks to finish off the tune. I will postup result once its done.
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If there are no massive air leaks, no boost, and you don't get any turbo spooling sound. its quite likely means your turbine wheel has snapped from its shaft.
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you don't need to balance a turbine housing. There are 6 bolts on the buttom and a circlip which you need to remove, then the turbine housing will come off. Put the CHRA in to the new housing, tighten all the bolts, and connect the actuator rod. Or If you like send the turbo in with the new housing, and we can change it here.
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probably around 500~800RPMs of more lag. But heaps more torque, and since turbine housing is bigger its be able to hold high boost. Its only $150 to profile this housing, and if you don't like it you can always put your stock housing back in.
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With high flows its just matter of bolt every thing back the way you unbolt every thing off (Stock washers should be ok, But prefer new washers). We don't have fittings instructions prepared at this stage. Most performance workshops would know how to slap every thing together in the right way.
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Hi Dave, The VG30's turbine housing is .63 so its a bigger housing then a OP6. Which is excellent to use. I think with the .63 rear you can get over 260rwkws. It will be noticeable laggier but definitely worth it. Geraus. That R33 Tuned at Nicks (He's famous on flash tuning V8 and XR6 turbos) was lot more torquer compare to yours. hard to say, and only running 9psi. Tune's not yet finished. I'm pretty sure that car can hit about 270rwkws. If you want I can upgrade your turbine housing with a discount price to see what it does at 18psi.
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Ok This would be the very first dyno sheet from ATR43 in .63 rear internally gated. Its a R33 RB25det with : Power FC 550cc Nismo injectors Z32 AFM FMIC 3inch exhaust with Cat Pod filter Metal intake pipe. Car made 226rwkws on 9psi, Tuner left it at 11.30PM last night. Its coming back to finish off the tune in few days, hopefully seeing 280rwkws with a bit more live on the curve. Customer came in and took me for a drive this afternoon. It felt great. There is no lagness like the TR43is, super smooth acceleration with plenty of power and torque. This is probably one of the best turbos to suit a RB25det. For now:
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But any way, Most of people who are likely to use those dump pipes are with stock front pipes. which is not really going to affect much. But any way if you run it into a 3inch front pipe it should be ok. The boost drop thing can be due to some thing else. Do you have a print of your current boost curve?
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For the R33 its recommended to go for our ATR28G3 in T3 .63 rear internally gated. We can get you a cheap dump pipe to bolt on stock front pipe for $100. The cost for this turbo with oil feeding line and 14psi internal wastegate setup is $1080.
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T3x .63 for RB25det dump Pattern. Its a pretty good size for ATR28G2.
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Yes we can machine it to suit the Turbine if you can send in a housing. it will cost $150 to profile.
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It really Depends on whats wrong with them. If bearing is gone then it will cost roughly $600 to repair each turbo assume your shaft and wheels are good. Bring them pass if you are in Melbourne. I can get you a inspection report and quote before we start.
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With .63 rear it would be able to hold boost line lot straighter and making lot more torque and power. probably be slightly less responsive compare to OP6 housings. For who ever wants .63 rear housings to suit our high flows we can supply for $250.
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Nice work Davo Thats the best engine bay I've seen so far. Want to try a .63 rear with above Dump for $250? You probably see another 35KWs with .63 rear. This is a ATR28G2 powered at full capacity on a CA18det engine with .64 T28 rear. Would be heaps more responsive on a 2.5L engine. T3 .63 rear is similar to a .86 of T2x.: With the trust turbo if you feed abit of engine oil through feeding port you probably find the bearing slap goes away. They only do that when bearings are dry. normally you get no higher then 20 thou of play both sides, and shouldn't have any thing greater then 10 thou up and down.
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Why not. Do you have a dump pipe on your car? I remember its a one piece front pipe to cat. But you still need to buy the turbine housing thou.
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I only bought 2x pieces samples, the welding seems to be alright, I guess there are more then one people making those. But You might be right. I'm going to give one out for free and see how it works fist.
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I think I found gold on Alibaba. Here are some direct blot on RB2x dump pipes made for V-band setup TR43x turbochargers. Arrived today. Haven't tried them on any cars yet looks like they should be 95%+ spot on. They are $100 each with any turbochargers. Currently they suit our: All ATR28 models in .63 internally gated rear housings All TR43x Models in .58 and .63 rear housings. For all customer's who's currently running our high flows, Pay $350 we can supply you with a .63 turbine housing and this dump pipe. this should get all the ATR28G2 R33 high flows making over 250rwkws. and ATR28G3 R34s to 280rwkws.
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Hi Dave. If you can get me a OP6 rear housing the ATR28G2 has no issues going over 250rwkws. Or we can also make you a .63 rear internal gate, probably can push 270rwkws ish. But you need to modify your dump pipe.
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If you see the turbo is leaking off both seals with no shaft play then you might want to check the oil drain and make sure your breathers are not blocked or into some doggy catch cans. Other then that turbo probably just need new bearings and seals. we can have a look at if you like.
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Stock is ceramic. Most modern performance turbochargers are using cast iron with inconel compound. you also get some cast iron once in some early diesle engines.
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Quick Question About Changing Air Filter To Pod Filter
hypergear replied to JunglBoi's topic in Engines & Forced Induction
probably be making 5KW difference on stock setup. It will make massive difference if you run a big turbo with high boost. -
GT2876R is made for a V6 engine (I can't remember the word for it lol). IE. 3cyc goes into the turbo and force feed all 6 cycs. it will make abit more power then GT2871R in .86 rears not responsive.
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Sorry I must mis understood. I thought you wanted to install a GT2876Rs to a Rb20 engine. anyway, If the high flow was done to the R33 is using its standard 2IU rear housing then that turbo would be more responsive then the GT2876R . 86 rear. and still get you around 230rwkws But the GT2876R .86 would definitly make lot more power.
