hypergear
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Everything posted by hypergear
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That housing is only for a SS1xx turbo. G3's got a much larger turbine housing, the cut on the adapter is currently the same. -
Have big gate keeps the turbine housing cooler, but harder to boost control. how ever also depending on applications, we do get XR6 BA turbo waste gate jobs often. From my past experiments bigger gate drops more boost. How ever that was before the innovation of all the wastegate controlling methods that I've used today, So might not have the same drop behavior, while makes more power on lesser boost just like having an external gate. And yes the machined 3inch Vband adaptor fits All .63 and .82 ATR43 series.
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The problem with large internal gate is boost control. means it will have more boost tappering off in general as there will be more load on the actuator. It is a bit of a concern on the new .82 IW housing assembly, might need to run a 2~3 actuator setup or some thing similar to eliminate boost drop. one off 38mm internal gate SS1 turbine housing.
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Depending on who did it. Far as I know high flowed R33 turbochargers made to produce good power for a Rb25det will be laggy on a R32.
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mmm well looks like I really have to make the dump pipe my self to get every thing properly. I'm thinking of getting rid of the factory 6 bolt patterned dump, and have a 38mm internal gate assembly made from scratch to a proper 3inch Vband dump, then a 3.5inches turbo to cat front pipe. 38mm internal wastegate: The internal wastegate assembly: Final assembly: Looks good doesn't it. The cost of making above including a proper one piece dump n front pipe costs $475. Works out to be $1375 for the Gx series. Still pretty cheap considering what most people paying for dump pipes this days. I will post photos as the kit completes.
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Well its still a dirt cheap part to buy, works out cheaper then me modifying a stock manifold. I will be doing some further evaluations and see how it goes.
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You might want to see how much boost its hitting with the boost T. Might not be getting enough fuel, or air or knocked so hard that it went into leap mod? Won't be getting much power increase running a fully stock r32 gtst with just a boost T. and you might be seeing me soon with a broken turbo . Aks your mate to run it on stock boost or spend some $$$$ to have it modified properly.
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Here's a photo sent by a customer as the Flange on those dumps wasn't milled out 100% to dump pipe gasket. It would affect turbo's performance as the step is right at where the turbine wheel sits. Would defiantly require some di-grinding and welding before installation.
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The SS1PU result that I've got was based on using this type of manifold. So there should be a 10% gain V fully standard exhaust manifold.
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Here are some results today from using the aftermarket CN bolton manifold. There is a gain but not impressive. All three runs below are from one turbocharger. Power wise: Red used the lowest boost making the highest power = Brae bolton manifold (winner ) Dark blue = Ported stock manifold Light blue = China stainless steel bolt manifold Boost wise: Stock exhaust manifold was the most responsive, Brae exhaust manifold was the 2nd while stainless steel CN manifold was the laggiest. During tuning, the CN manifold took 3 degrees of additional timing up top while stock manifold would've pin, making timing table wise identical to the $1200 Brae manifold. That is shown in the gain after 6500RPMs. The SS2 turbocharger used today was also fitted with my twin actuator setup that had the least amount of boost drop compare to the other two. So in conclusion while having the the highest boost level, been the laggiest, but Still not good enough beating an $$$$ hand made Australian manifold. How ever still an better exhaust manifold compare to stock. I will do one more run with in a week time using the .82 Ceramic roller SS2 against results obtained using factory manifold before making the final decision on having them imported or not.
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I've mis-read your comment in the dyno sheet section. the none boost controller version do appeared to be a little more responsive for some reasons. Good result nerveless.
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This is a pretty good result from a high flowed Rb20det turbocharger bolted on to a stock rb20det motor internally gated. Green is 98 and red id E85 limited by fuel pump. Hopping to see around 250rwkws with fuel pump replaced. For 4AGZE Ke10 rolla, Here's a result from a ATR28G2. Good chance cracking 300rwkws on 24psi on e85
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Well if the comp wheel is made exactly the same to original caste then it makes no differences. lol For our billet wheels we run a different sized hub with slightly taller inducer and blade curvature. All manufactures has their own wheel profiles, so there won't be an identical billet turbo result. The currently 20G follows our SS hub and blade profile, that is engineered to produce the most Power with Least RPMs. So the car comes alive as soon as its on gas. You can see that worked extremely well refer to test result based on a SR20det None Vct motor, and no one has yet managed to get 200rwkws by 4000Rpms on same setup. Its going to be crazy responsive working with the Rb25det. I would expect the end result be similar to the SS1PU with more top end since working with proper manifold and external gate.
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have not been selling any Type A this year so pretty sure all the once made as a bolton turbos are type B.
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They all had a stamp. Difference is in the fnt nozzle setup. its near the inlet of the exhaust turbine housing.
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Visually it has .82 stamp on it. It is large.
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Solely by looking at all your boost curves. Halando's the only person running the Type A .82 rear, matching up the boost response against mine its pretty much identical. How ever that turbo was still still gain power on my setup from 22 to 24psi. The most I've seen from the type A in stock manifold on 18~20psi was 287rwkws tuned by Toshi, You are up to 270rwkws at 18psi so its not very far off, have a play with the cam gear and possibly cooler pipe should enable the gain. T-Revz is running the Type B .82 rear from memory. The boost response (rpm= speed / 28 * 1000) so by 3700rpms you are sitting on 15psi appears to be laggier (not by much) the reference to be looked at is page 292 and 294 from Adam9111, might want to have a play with your cam gears and cam angles. Tory is also running a Type B .82 and his response matched up perfectly to mine. How ever this turbine housing does not have that much of a boost drop off behavior. I strongly recommending of getting a boost pressure reading from the turbo's outlet v after the inlet manifold. Power wise I don't have much experience of aftermarket cam behaviors on Rb25det. Based on stock cams, its just matter of tuning and play on the timing and fuel mixture to for the best Hp out put.
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Yes I have stock of the billet 20G but only in a 10cm T3 rear. I can sale you the core for $700 if you want, which you can run that in your current 8cm housing. 18G, and 25G plus 8cm turbine housings are still work in progress at this stage.
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I've always been using xforce exhausts. if the flange is small you will see a carbon trace, and mine appears to be fine. Its just a flange welded onto a pipe, I've honestly never thought a dump pipe been made and sold like that. All Bolton turbos has been made on a jig, so regardless what housing it is the bolt patterns are exactly the same, with all dump area matching up perfectly to stock gasket. Dump pipe been restriction, yes, a customer just picked up 22rwkws by replacing his split dump with a custom bell mouth. I will get a copy of his sheet next week.
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The ceramic rollers are good, its currently working well with the SS2 configuration. I run it on 23psi and it appears to be fine. How ever I wouldn't expect it to have the same life time expectancy as the current journal bearing setup, but I haven't managed to blew any of them up yet so at this stage I don't know how long it will last.
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I probably have those manifold ready towards end of this year, I like to do few more dyno runs with it before placing the order. That will be a bolton upgrade for a stock turbocharger, means it will fits all the bolton ATR43 turbos including high flows. Will start the adaptor flange monday and see what I can come up with. Yes I will need to build one first. Will post results and photos as I go.
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Good to see some one actually done a trace. That dump pipe don't look good, I hope the actual pipe is welded outside of where the flange is, or there will be a big gap once die-grinded. Its going to make discharging of air more difficult, which its already hard getting enough out of the Nissan 6 bolt pattern. I would definitely get that exchanged/fixed before turbo installation. Just got to admit that if you want some thing done properly you must do it your self. I'll be making a Vband / two bolt type 4inch front/dump pipe for all ATR43 turbochargers replacing the current Nissan 6bolt dumps in very near future. Made and trailed a Dual Ceramic roller SS2 today. (took me 3 hours to balance, with all the extra bearing collars) The sample manifold looks not too bad and haven't cracked yet with 22psi. There is a just noticeable off boost response using the roller setup. I will make a few for those interested in evaluation at the normal price.
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Normally the higher the engine revs the greater the amount of boost creep. I see that often. The only way out of it is to mill out the wastegate port and replace the original gate with one with larger OD.
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I'm pretty sure they are what I've got except pained in black with added external gate port, as all the welding patterns are the same. The goal is to supply a kit that keeps every customers at my test car's performance at a budget price. As mentioned earlier, I'm investing a fair amount in re-developing the current TDxx series of turbochargers, manifold and gate are crucial.
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Yes I've fitted the prototype manifold. It is awful, lots of dressing up work required and i'm certainly not impressed with the level of workmanship, the final product I will be selling will be a steam pipe manifold with every thing done to specifications. it will definitely flow much better then a stock Rb25det manifold. I've re-enforced the the joiner, that is where its likely to crack. I'm pretty sure this is what some people sales on ebay. The bolt pattern on the flanges for cyc 4 5 6 are all out. it won't fit unless dressed up. Finally fitted: By the way any one needs their wastegate opened up? we can perform this service for $120.
