|
looks pretty good, are you going back to a T3 turbine then?
. |
Yeah , I prefer the T3 as it enable closer fitting to the engine with less drama.
For testing the first one ..... I'll fit my older gtx3582 turbo with the T3 flange and maybe look at swapping back to a G30-660 T3 sometime in the future if someone takes my Vband setup. |
since it’s only available as an open volute on the G30, would you stay with the 1.01 or consider the 0.83?
|
Haven't thought that far ahead ... but yeah , I think i'm gunna have to try the 0.83 at some stage.
|
How much to have another mold and casting made? Any discount for 10 or more because I'm pretty sure many people following this thread would be interested in pricing and delivery.
|
Originally Posted by northzone
(Post 4942543)
How much to have another mold and casting made? Any discount for 10 or more because I'm pretty sure many people following this thread would be interested in pricing and delivery.
|
|
Looks a lot better than the UK one, comparatively ...
|
I'm more interested in the performance ...and for that I think it will be way better. Time will tell.
|
You already know I agree which one will perform better, but at the risk of annoying you again, see *potential* for improvement. As you noted before, I could prove to be wrong about it though.
Is that work being done overseas or there in country? Might have an interest myself. . |
As a totally uneducated person on turbo rotaries, is there any concern about the wastegate just dumping from one rotor?
|
it doesn’t in theory due to the “unique to the Renesis” siamese center port being configured to flow in either direction (though it likely only flows to the turbo), but more importantly also serving as a potential relief path for backpressure imbalance on the rear rotor.
The advantage is the EWG relieves flow prior to the turbo inlet rather than having it exit after the traffic jam into it is already created with an IWG configuration. That’d be further compounded by IWG with the smaller entrance area v-band inlet. A larger T4 inlet with IWG might not have that issue, but would likely be dependent on power level and rpm limit, i.e. the resulting flow level it has to contend with. . |
Yeah, I definitely understand the benefit over IWG. Obviously packaging concerns are a big issue on the RX-8 platform, especially for RHD, so it makes sense. I guess the only way to "know" would be pressure sensors from each outlet port to study it.
Thanks! |
Originally Posted by DocWalt
(Post 4942818)
Yeah, I definitely understand the benefit over IWG. Obviously packaging concerns are a big issue on the RX-8 platform, especially for RHD, so it makes sense. I guess the only way to "know" would be pressure sensors from each outlet port to study it.
Thanks! You could put sensors on each outlet ..................... , or you could just try it out for long enough to be confident there were no detrimental effects. Which is what i'm doing :) There is definitely not enough flow from just the end port though, with my latest fabricated manifold I cannot hold boost below 13psi at high rpm. This is in part due to the very efficient G30 turbo which doesn't need as much flow to power it up. Hence the need for some design changes to favor more flow from the Siamese to the WG and the fitting of a larger wastegate. |
Team , the manifolds will be 100% Kiwi.
|
Originally Posted by Brettus
(Post 4941568)
It will be printed in a PLA material for the lost PLA casting process. Then cast in stainless.
|
Originally Posted by Brettus
(Post 4942837)
Team , the manifolds will be 100% Kiwi.
props to NZ, always amazed by what is accomplished there compared to other countries. |
Brettus,
I see a solid area under the bottom-side of the manifold. Is this to add either an EGT or EMAP sensor in the center of the manifold? Are you considering adding material at either end of the manifold to monitor each rotor EGT as well? I am not sure on EGT placement preference on a rotary though (distance from exhaust port). I added an EMAP sensor to the top to possibly reduce moisture buildup in the line. I am not sure how often moisture builds up in EMAP lines, I know a few people that have had moisture in theirs. https://cimg9.ibsrv.net/gimg/www.rx8...194dda05e4.png |
Yes that raised part is for an EMAP or EGT sensor . I run a canister after the steel line to dampen pulsations and this also helps to keep moisture away from the gauge. I chose that spot because it's pretty much the only place that is easy to get to. IMO you don't really need EMAP once you have your system dialed in. It's not something you you refer to after that. Was not looking at adding any other spots for sensors.
|
Understandable. So you don't run an EGT sensor?
I'd mostly want for comparing setups to show people differences of EMAP and turbo choices. Staf's find of the Xora Rotor 6564S trubo is an interesting, and made me really question EMAP data, at least for the initial tuning. Or for your sake of swapping turbos and turbine housings showing the pressure drop result. |
No , have never ran an EGT sensor. There is the egt sensor on the stock AFR sensor which does help a little.
|
Originally Posted by Fickert
(Post 4943298)
Staf's find of the Xora Rotor 6564S trubo is an interesting
It’s interesting that you consider it interesting considering that there’s little - no data on it otherwise. perhaps more often interesting is how some people are more prone to blindly jumping over a wall without any consideration for what’s on the other side, if only because they saw somebody else consider blindly jumping over the wall first. I seem to recall that Darwin even developed a thesis on such a practice. . |
Originally Posted by TeamRX8
(Post 4943315)
It’s interesting that you consider it interesting considering that there’s little - no data on it otherwise. perhaps more often interesting is how some people are more prone to blindly jumping over a wall without any consideration for what’s on the other side, if only because they saw somebody else consider blindly jumping over the wall first. I seem to recall that Darwin even developed a thesis on such a practice. . Not a "I am buying right now because their marketing has me feeling all warm and bubbly inside", just interesting. Also I got a response from Xona Rotor about my inquiry. Not much valuable information, but claim the 6564S is better compared to a GTX3576R or EFR7670, though he doesn't state anymore on that topic. Specifically they suggested looking at the XR6157S. I did not specify this is going on a rotary though which was probably a mistake. Food for thought. We have not yet released graphical compressor maps, but they will be added to the website in the near future. If you have specific flow value questions, please let me know and I can provide you with whatever information you need. The XR6564S and G30-660 are not a very good comparison, however, so I will take a moment to compare aerodynamics: G30-660: 54/67mm compressor stage, rated at 60lb/min of peak flow at an undefined efficiency rating (the flow line is below the 60% flow line, though). 60/55mm turbine stage Garrett rates this unit for a range of 350-660BHP, but does not clearly define this based on the compressor flow map. 60lb/min would typically result in a peak rating of 600BHP, based on their own recommendations, and by current industry standards. This unit is essentially an update to the previous GTX3071R Gen 2 unit, for reference. XR6564S: 58/79mm compressor stage, rated at 65lb/min of peak flow at 60% efficiency. 72.5/64mm turbine stage, UHF design, with proprietary 5/5-blade split-blade turbine.. We rate this unit for a range of 350-690BHP based on engine efficiency and fuel choice. This unit is better compared to units such as the GTX3576R Gen 2 and EFR7670, as it has a larger rotor group overall than the G30 models. If you are interested in the G30-660, I would suggest having a look at the model below: XR6157S: 55/76mm compressor stage, rated at 61lb/min of peak flow at 60% efficiency. 64/57mm turbine stage, UHF design, with proprietary 5/5-blade split-blade turbine. We rate this unit for a range of 320-640BHP based on engine efficiency and fuel choice. The XR6157S has several distinct advantages over the G30-660:
used in the XR6157S. Let me know if this is helpful to you. Best Regards, Mike Franke Technical/Sales Support Xona Rotor Turbochargers-U.S.-Made Performance Turbochargers tech@xonarotor.com www.xonarotor.com |
Very ......................interesting :lol:
I think (based on the compressor trim) that the 6157 compressor would not work as well as the G30-660 as its best efficiency will be at a higher Pr , which wont suit a 13b. That's why you are probably better with the 6564 ..... But again , till you see the actual maps it's just a guess. |
Available for the masses?
I may have missed this. Is it something you plan to be selling to others?
|
| All times are GMT -5. The time now is 12:25 AM. |
© 2024 MH Sub I, LLC dba Internet Brands