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Old 04-03-2012, 10:50 AM   #1
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Question Why doesn't Garrett or Borg make these for tuner applications?

http://press.porsche.com/news/release.php?id=333

Like the article says, these have been used since the early 1990's.....WTF dont we have them yet? Instant Torque/spool FTW For now there is no compromise, big power, big lag
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Old 04-03-2012, 11:19 AM   #2
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Old 04-03-2012, 11:19 AM   #3
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Well seeing as how the article states that the turbo temperature problem was only solved in 2007 while working with porsche I would imagine it is a patented design that is hard to copy without infringement. My second guess would be that the materials would be cost prohibitive for most tuners and the limited run was judged to costly for profit
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Old 04-03-2012, 12:07 PM   #4
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Originally Posted by bikersam717 View Post
I've seen these but if a company like Garrett or BW could make them I think it would bring down prices quite a bit......and this totally disproves Ryan's theory of patents or whatever.
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Old 04-03-2012, 12:29 PM   #5
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Quote:
Originally Posted by Boost Joose View Post
http://press.porsche.com/news/release.php?id=333

Like the article says, these have been used since the early 1990's.....WTF dont we have them yet? Instant Torque/spool FTW For now there is no compromise, big power, big lag
We do. You can buy a Borg-Warner BV50 (the 997TT turbo) from Borg today.

http://www.full-race.com/store/turbo...vtg-turbo.html

They cost just a little over five thousand dollars each.

Still interested?
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Old 04-03-2012, 12:45 PM   #6
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Quote:
Originally Posted by Savington View Post
We do. You can buy a Borg-Warner BV50 (the 997TT turbo) from Borg today.

http://www.full-race.com/store/turbo...vtg-turbo.html

They cost just a little over five thousand dollars each.

Still interested?
Actually, maybe but it doesn't look like one would flow enough for what I'm looking for.

I cant find much detailed info on them I see where it looks like together they both flow ~530 HP but is that indivdually or both together? You know of any reliabilty issues with these(certain amount of miles they typically last) or are they as good or better than your typical BW or Garrett?
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Old 04-03-2012, 12:56 PM   #7
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Time to start scoping out the junkyards......
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Old 04-03-2012, 01:03 PM   #8
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Have you looked at the Cummings VGT Turbo?

http://cumminsengines.com/every/misc...ier_4_vgt.page
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Old 04-03-2012, 01:12 PM   #9
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There are already many applications of these out. Just not any readily available for the aftermarket. For example, Garret makes a VGT turbo for the VW Diesels. For a project turbo I would recommend the Holset HE351VE. They are readily available and can be had for under $200 used. They are a bit heavy though but the compressor side is about the same as a Holset HX35 and the exhaust housing VNT vanes can be controlled by a standard wastegate actuator or by an electronic controller.
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Old 04-03-2012, 01:55 PM   #10
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Few tuner shops can tune timing.

What makes you think they would be auccesful at VGT?
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Old 04-03-2012, 02:03 PM   #11
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Quote:
Originally Posted by BogusSVO View Post
Have you looked at the Cummings VGT Turbo?

http://cumminsengines.com/every/misc...ier_4_vgt.page
Wow, these look great. I just called the local Cummins dealer, got transfered between parts and service 8 times, literally, then left only to leave a voicemail. Not very impressive knowledge/customer service.
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Old 04-03-2012, 02:05 PM   #12
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Quote:
Originally Posted by Faeflora View Post
Few tuner shops can tune timing.

What makes you think they would be auccesful at VGT?
I've got a great tuner but I haven't ran this epiphany by him yet......I'm not saying this is a great/solid idea but if you could get full boost by 2500 rpms and make 600 whp would you say yes?
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Old 04-03-2012, 02:35 PM   #13
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Quote:
Originally Posted by BogusSVO View Post
Have you looked at the Cummings VGT Turbo?

http://cumminsengines.com/every/misc...ier_4_vgt.page
No VGT diesel turbo is capable of withstanding the EGTs seen by gasoline engines. Diesel EGTs are 1200-1300*F max with short bursts to 1400*F on chipped trucks.
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Old 04-03-2012, 02:41 PM   #14
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Quote:
Originally Posted by Boost Joose View Post
I've got a great tuner but I haven't ran this epiphany by him yet......I'm not saying this is a great/solid idea but if you could get full boost by 2500 rpms and make 600 whp would you say yes?
If you could hit a MAP at 2500rpm that happens to flow 650lb/min of air at redline...well, you'd need a different head at the least, lol. You're also highly likely to run into compressor surge because a variable geometry turbo is cool, but it's not going to give you that kind of output.
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Old 04-03-2012, 02:41 PM   #15
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I just checked Ebay.. there are a few up for sale, both new and used...

Also a VGT for a Mitsu
http://www.ebay.com/itm/MD187211-MD1...ba9ca5&vxp=mtr

$700??

It may be a better fit for a sub 2.0l engine

Just a guess.. I have not looked into it

I have a HUGE Cummings VGT to bolt on something, just have not decided what yet.
My buds and I call it the Basketball turbo....
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Old 04-03-2012, 03:23 PM   #16
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Quote:
Originally Posted by BogusSVO View Post
I just checked Ebay.. there are a few up for sale, both new and used...

Also a VGT for a Mitsu
http://www.ebay.com/itm/MD187211-MD1...ba9ca5&vxp=mtr

$700??

It may be a better fit for a sub 2.0l engine

Just a guess.. I have not looked into it

I have a HUGE Cummings VGT to bolt on something, just have not decided what yet.
My buds and I call it the Basketball turbo....
If what Savington said is true.....this still wont work? Designed for a Mitsubishi Shogun(Diesel). I'm also having a hard time finding out what kind of power these diesel turbos could make on a gasoline engine. I see they make some massive torque but low hp. I'm assuming I can't just take the torque number from the vehicle the turbo is designed and for and assume the same torque will be made on the BP

Anyone have any diesel to petrol conversion experience?
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Old 04-03-2012, 03:27 PM   #17
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Sav's already explained why it won't work, boo. May want to listen to the guy, he knows what he's talking about.
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Old 04-03-2012, 03:28 PM   #18
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Look at the Holset turbos. Originally intended for diesel, but they make lots of power and spool really well in gasoline applications.
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Old 04-03-2012, 03:28 PM   #19
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Quote:
Originally Posted by Savington View Post
No VGT diesel turbo is capable of withstanding the EGTs seen by gasoline engines. Diesel EGTs are 1200-1300*F max with short bursts to 1400*F on chipped trucks.
If this is true, why do so many people run Holset's?
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Old 04-03-2012, 03:30 PM   #20
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Quote:
Originally Posted by Bryce View Post
Look at the Holset turbos. Originally intended for diesel, but they make lots of power and spool really well in gasoline applications.
Ha, ginx
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