Twin Scroll Turbos?? Monster Spool.. FACT or FICTION???
I think BR will start offering once the markets dictate a need for them to offer it. Remember BR is in the business of making money. If the need is there they will certainly offer it.
I don't necessarily see it as teaching an old dog new tricks. I think he has the knowledge and know how of what works and what doesn't. I am sure he understands this technology just fine. A lot of these old dogs have been in this game a lot longer than most of us here.
With that said, imho I think the best thing to do is wait and see instead of speculate back and forth.
On the same token, I find it interesting sierra sierra utilized a jb(not John Bradley I know you all got excited for a minute) turbo rather than a bb. Of course they mitigated any oil issues that would arise but it is interesting that they would utilize such a design. I know saving a few duckets on a turbo wasn't on their to do list. So again it begs the question why? Before I get a lot of nasty gram hissy fit comments about the bb cartridges being superior I personally run a bb turbo for the same reasons most of you prefer them. I am just sitting here wondering why? Like I said all of this is interesting.
JB, loved the vid and loved the flex fuel technology. Cant wait to see this more and more. It is a route I definitely want to take as well in my build. I am assuming it takes quite a bit of dyno time to get each map dialed in? Just curious how much dyno time does it normally take to set an entire flex fuel map up like this?
I don't necessarily see it as teaching an old dog new tricks. I think he has the knowledge and know how of what works and what doesn't. I am sure he understands this technology just fine. A lot of these old dogs have been in this game a lot longer than most of us here.
With that said, imho I think the best thing to do is wait and see instead of speculate back and forth.
On the same token, I find it interesting sierra sierra utilized a jb(not John Bradley I know you all got excited for a minute) turbo rather than a bb. Of course they mitigated any oil issues that would arise but it is interesting that they would utilize such a design. I know saving a few duckets on a turbo wasn't on their to do list. So again it begs the question why? Before I get a lot of nasty gram hissy fit comments about the bb cartridges being superior I personally run a bb turbo for the same reasons most of you prefer them. I am just sitting here wondering why? Like I said all of this is interesting.
JB, loved the vid and loved the flex fuel technology. Cant wait to see this more and more. It is a route I definitely want to take as well in my build. I am assuming it takes quite a bit of dyno time to get each map dialed in? Just curious how much dyno time does it normally take to set an entire flex fuel map up like this?
More or less the first base tune setup and drivability, then 2-3 hours on the dyno, then drain the car and put in E85 or whatever mix. Retune the car for E85 so maybe another 1.5 hours or so. Set up interpolation between the 2 and BAMM....done.
I don't necessarily see it as teaching an old dog new tricks. I think he has the knowledge and know how of what works and what doesn't. I am sure he understands this technology just fine. A lot of these old dogs have been in this game a lot longer than most of us here.
On the same token, I find it interesting sierra sierra utilized a jb(not John Bradley I know you all got excited for a minute) turbo rather than a bb. Of course they mitigated any oil issues that would arise but it is interesting that they would utilize such a design. I know saving a few duckets on a turbo wasn't on their to do list. So again it begs the question why? Before I get a lot of nasty gram hissy fit comments about the bb cartridges being superior I personally run a bb turbo for the same reasons most of you prefer them. I am just sitting here wondering why? Like I said all of this is interesting.
SSE blew up like 3 or 4 JB Garretts before they eventually went over to the BW EFR. They kept breaking shafts on the T67.
Read his posts on here. Just because he's been around a long time doesn't mean his done the proper due diligence. Does it matter though? I thought he left EVOs for GTRs?
I'm not speculating. I have the experience to say TS is superior. I said it 4 years ago in this thread. Any post I have made against TS has been strictly based on weight/complexity or asking for some real back to back tests of vendors selling TS stuff.
SSE blew up like 3 or 4 JB Garretts before they eventually went over to the BW EFR. They kept breaking shafts on the T67.
I'm not speculating. I have the experience to say TS is superior. I said it 4 years ago in this thread. Any post I have made against TS has been strictly based on weight/complexity or asking for some real back to back tests of vendors selling TS stuff.
SSE blew up like 3 or 4 JB Garretts before they eventually went over to the BW EFR. They kept breaking shafts on the T67.
And I wasn't referring to speculation in the form of which one is better. I think we all know which one is better. However I was referring to speculation in the form of whethor we think BR will come out with a TS design. So entirely different point you thought I was making.
It is interesting though they decided to use 3-4 of those before they made the switch. I am just curious why they did that?
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On the same token, I find it interesting sierra sierra utilized a jb(not John Bradley I know you all got excited for a minute) turbo rather than a bb. Of course they mitigated any oil issues that would arise but it is interesting that they would utilize such a design. I know saving a few duckets on a turbo wasn't on their to do list. So again it begs the question why? Before I get a lot of nasty gram hissy fit comments about the bb cartridges being superior I personally run a bb turbo for the same reasons most of you prefer them. I am just sitting here wondering why? Like I said all of this is interesting.
I believe they used the journal bearing simply because they were using a hybrid turbo to get a larger compressor wheel then the GT3582R without having to go up to the GT4088R.. I don't think the GTX3582R was out at the time?
Yes, I missed what you are referring to on the speculation. I won’t digress further down the Buschur path. He has his market and clients. Other tuner shops of equal merit today have a different opinion then his on this subject and their clients trust their opinion. If you want a SS setup, he’s your man. Don’t be surprised if an equally well setup TS car stomps your car on the street though. That's all I'm saying.
Yes, I missed what you are referring to on the speculation. I won’t digress further down the Buschur path. He has his market and clients. Other tuner shops of equal merit today have a different opinion then his on this subject and their clients trust their opinion. If you want a SS setup, he’s your man. Don’t be surprised if an equally well setup TS car stomps your car on the street though. That's all I'm saying.
I agree its what is needed though. Just hard to implement for an average consumer generally.
I believe they used the journal bearing simply because they were using a hybrid turbo to get a larger compressor wheel then the GT3582R without having to go up to the GT4088R.. I don't think the GTX3582R was out at the time?
Yes, I missed what you are referring to on the speculation. I won’t digress further down the Buschur path. He has his market and clients. Other tuner shops of equal merit today have a different opinion then his on this subject and their clients trust their opinion. If you want a SS setup, he’s your man. Don’t be surprised if an equally well setup TS car stomps your car on the street though. That's all I'm saying.
Yes, I missed what you are referring to on the speculation. I won’t digress further down the Buschur path. He has his market and clients. Other tuner shops of equal merit today have a different opinion then his on this subject and their clients trust their opinion. If you want a SS setup, he’s your man. Don’t be surprised if an equally well setup TS car stomps your car on the street though. That's all I'm saying.

As for the GTX3582R they came out around mid 2011 from what I remember. I could be wrong but perhaps someone could chime in and confirm this.
Back in the day, I was the first person who got ECU boost for my Evo in SoCal. To me, the benefits seemed obvious and I am no engineer...that's Aby's specialty. Man oh man, you should have seen the bellyaching that went on:
MBC is JUST FINE for Evo's!!!
You don't need that newfangled crap. Why don't you use an MBC?
MBC FOR LIFE YO!!!
Etc., etc. ad nauseam.
Well, how many people are running ECU boost now? Especially with stock-framed turbos
MBC is JUST FINE for Evo's!!!
You don't need that newfangled crap. Why don't you use an MBC?
MBC FOR LIFE YO!!!
Etc., etc. ad nauseam.
Well, how many people are running ECU boost now? Especially with stock-framed turbos
I have done a back to back test on a customers GVR4. He had a .55ar BEP housing 259ETT. It made about 330 to the wheel on a 2.3L stroker with kelford 272s and stock intake manifold around 28psi. Hit full boost around 3500rpm. We built a nice flowing equal length twin scroll t4 manifold for it. Slapped on a Borg 1.00 T4 TS housing and the car made 400 AWHP at the same boost level and the damn turbo setup spooled so fast it would surge going into boost. We had to add timing to make the turbo spool slower. I can post overlying dyno sheets tomorrow.
Originally Posted by J
Slapped on a Borg 1.00 T4 TS housing and the car made 400 AWHP at the same boost level and the damn turbo setup spooled so fast it would surge going into boost. We had to add timing to make the turbo spool slower. I can post overlying dyno sheets tomorrow.
Last edited by Erik@MIL.SPEC; Sep 11, 2013 at 05:58 PM.
Going to presume this was somewhat directed at me. Thats a good point and that keeps it the same car more importantly.
Not directly. I have been saying how easy this would be for a whole on multiple forums and no one seemed to hearit. I even offered to send some $ to offset the cost to anyone doing the test. That would end the ddebate instantly since it would be everything the same except turbine housing's.







