fact9c1

iTrader: (8)

what do you turbo experts think about bank's turbo new turbo design, surpose to be the best of both worlds(spool quick like a small turbo but flow like a big turbo on the top side)

Ferocity02

iTrader: (60)

I saw that also and it looks like an awesome idea.

If anyone didn't see the show, I'll try to explain how it works. Basically it's a regular turbo except in the exhaust turbine side, there are "fins". What these fins do is move in an out of the exhaust path to increase the velocity of the exhaust moving through the turbo and also forces more of the exhaust gases to actually push the turbine instead of going around and out. The fins of the turbo are controlled by a mircoprosessor that considers throttle position, boost, load, etc... So if you gun it at low RPM's the fins will open up to help spool the turbo, then gradually close as the turbo spools. They say it virtually eliminates turbo lag. I am not sure how difficult it will be to bolt one of these onto our cars, and I'm sure they cost a lot also. Very cool design though.

sb427f-car

What show? but I know about this turbo, if you are refering to the Holset HY55 that they used on their cummins dakota to go 222+ at bonniville, i've been tracking that tech for the last two years now. Pretty hot ****.

fact9c1

iTrader: (8)

Yeah i seen the show also, interesting, i imagine it will cost an arm an leg

billybob77036

I have a friend who has worked on these turbos for over 3 years, trying to adapt it to his Cummins diesel Dodge. Those suckers are super expensive, and break your heart when you huff one. The results he got were impresive, and he did hand control it for a while with a rotor ****.

The Ford diesels are currently using something simiular, as are the Chevy's. The current Cummins engine found in the Dodge (ISBe) is using a VGT turbo in other applications, but is not using it in the Dodge trucks. Also the software to control the turbo is not built into the Dodge ECM as it is in those other applications from what I hear.

Racehead

The International VT365 ( also used in Ford trucks, and passed off as a Ford engine ) uses this technology. They are a great idea and work excellently when they work. Unfortunately we have been replacing them at the International dealership that I work at between 3-5000 miles. They have been nothing but trouble in virtually every single case. Very much a case of a technology that is not ready for primetime

billybob77036

I agree 100%. 10 years down the line though, these will be the latest and greatest, replacing everything we have now I think.

granitemonkey

Do you think they will have this on all size turbo's or just one? Would it be able to work on all sizes?

Ryan K

iTrader: (11)

LOL, VW has been using this for years. I am sure there are others also. Definately not new technology. But I can't wait to see it realy hit the aftermarket.

Ryan

billybob77036

I think it's going to be the same type of thing the ball bearing turbos have now. Right now BB turbos are becoming all the rage, and rightfully so in many aspects. The VGT's will have the same type of progress, where it's not really successful at first, but will continue to get better as time goes by, and people learn how to make better ones.

sb427f-car

You sure you aren't thinking of VNT? Variable nosel tech. Very different for VGT. I know Garrett has been experimenting with it too.


BTW, WHAT SHOW?

billybob77036

VGT is the Holset name and design, while VNT is the type of technology that Garret is doing. Same goal, different style. It will be intresting to see which wins out.

sb427f-car

VNT has been around for ages...VGT is different. VGT actually has a turbine blade that is designed with fins that slide axilly along the turbing blades...VNT varries the turbine housing size around the blades. You're right...same goal, different ways to reach it.

sb427f-car

again WHAT SHOW???

billybob77036

Sorry, didn't see the show question. It was on the new 4x4 show on Spike. Not Trucks, but the new one with the canadian hosts.

sb427f-car

ahh, missed it, then again, working 6 days a week, not much time for TV. Think they'll reair it?

smokinHawk

iTrader: (48)

i think areoquip (or some brand that starts with areo*) devolop somthing like that first. was the vats turbo, though this sounds a little different
pretty intersting, i think maybe ten years later they would have fixed the relibilty issue

sb427f-car

http://www.holset.co.uk/files/2_5_1_...20geometry.php Here ya'll go...figured I'd post it for your reading pleasure

2001-WS6

GM calls it the 2004.5 Duramax LLY engine which has been in production for a year now with a v-turbo.

Rick

gator's 99TA

iTrader: (2)

weirdly enough the LLY duramax feels like it has absolutely no bottom end torque esp as compared to the LB7 2001-2004 duramax motors.