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+--- Thread: Borgwarner R2S? (/showthread.php?tid=6313)
Borgwarner R2S? - hooblah - 03-04-2015
I have the opportunity to purchase a borgwarner r2s compound system for a good price. The turbos that it uses are the s250 and s360. I dont know much about the system other than it's capable of enough flow for 650bhp+. Id like some opinions on this setup before I commit to purchasing it.
Here is the spec
SPECIFICATION-
- Genuine BorgWarner R2S twin compound turbo setup.
- 71mm (50mm inducer) S250 ETT (extended tip technology) compressor wheel on small turbo rated to 550bhp+
- 89mm (60mm inducer) S360 ETT (extended tip technology) compressor wheel on large turbo rated to 650bhp+
- 59mm (50mm exducer) 12 blade quick response turbine wheel on small turbo.
- 76mm (64mm exducer) 12 blade turbine wheel on large turbo.
- 4bolt turbine inlet flange, and 4.5in (OD) turbine outlet flange.
- Heavy duty oil cooled cores with 360deg thrust bearings.
- Small turbo turbine bypass wastegate complete with actuator.
RE: Borgwarner R2S? - raysorenson - 03-05-2015
Are there different sizes to R2s? The only thing I see referenced is a 200hp 2.0l diesel.
There's also a 200hp compound on the 4.5l powerstroke.
RE: Borgwarner R2S? - TurboTim - 03-05-2015
Yeah I too wanna see pics of this bad boy!
RE: Borgwarner R2S? - Turbo - 03-05-2015
look more like a compound set up, turbo are very close, what are you going to use it for om606?
RE: Borgwarner R2S? - EDH_Performance - 03-06-2015
http://www.ebay.co.uk/itm/261800534532
RE: Borgwarner R2S? - hooblah - 03-06-2015
Yes om606. And edh that's the one! Still trying to figure out how I can make it fit.
I spoke to borgwarner and they wouldn't give out any info. There's no id tag so I can't find out the exact specs either.
RE: Borgwarner R2S? - Turbo - 03-06-2015
the difference in induzeer size area is only 1,44, more like you find in a "compound" the more sequential turbo set up like the BMW535D uses wider ratio bigger then 2, I do not know your preference in performance but I do not think it will work that good. The area ratio I use is about two even if it is much more complicated then that, but what the heck it can be fun to try, just do not get disapointed
RE: Borgwarner R2S? - hooblah - 03-06-2015
I want it spooling as quickly as possible. I might give it a miss if its not going to work too well. I'm also struggling to work out if it will fit in the space I have available, it can only be placed in one orientation.
RE: Borgwarner R2S? - Turbo - 03-06-2015
so at what rpm you want it to spool?
RE: Borgwarner R2S? - hooblah - 03-06-2015
Below 3k. 1.5k would be nice. I've seen some R2S graphs showing that it was pushing 2bar MAP at 1400rpm, but it didnt mention what turbos they used.
RE: Borgwarner R2S? - TurboTim - 03-06-2015
Damn who wouldnt want that! Could you imagine the cylinder filling if you could get 30psi at 1500rpm.
RE: Borgwarner R2S? - TurboTim - 03-06-2015
I think if you saw that on a graph it was probably something with a much narrower power band like a Cummings or powerstroke.
RE: Borgwarner R2S? - Turbo - 03-07-2015
(03-06-2015, 07:31 PM)hooblah Like turbotim said a Cummings or powerstroke, that motor is like 6l if I am not mistaken, If the HP stage was a a vnt kind it perhapes should be possible. BMW the old R2S system to 535D was full boost at 1000rpm, work alone to 1500rpm, together with the big one to 2500rpm and then the big one take over, waste gate open at 3500rpm, the big one is about 50mm induzor size, but the area ratio on that turbo is something like over 2, so I do not think so even I do not know what exhaust house and turbine that are used on them
Below 3k. 1.5k would be nice. I've seen some R2S graphs showing that it was pushing 2bar MAP at 1400rpm, but it didnt mention what turbos they used.
50
RE: Borgwarner R2S? - barrote - 03-07-2015
(03-07-2015, 03:37 AM)Turbo(03-06-2015, 07:31 PM)hooblah Below 3k. 1.5k would be nice. I've seen some R2S graphs showing that it was pushing 2bar MAP at 1400rpm, but it didnt mention what turbos they used.
lol ,
if saw them them too , in a caterpillar engine with rpm peak at 2200
or a jonh deere !!!
any how u would like to see it working.....
regards
RE: Borgwarner R2S? - Alastair E - 03-10-2015
(03-06-2015, 09:02 PM)TurboTim Damn who wouldnt want that! Could you imagine the cylinder filling if you could get 30psi at 1500rpm.
MAP = Manifold Absolute Pressure.....
--As in referenced to a Vacuum......
--Important word here--Absolute....
Sooooo--
This means 1 bar boost pressure, in real-world speak, and what you'll read on boost-gauge...
Not 2 bar boost or 30PSI! (Err, BTW--2 bar is only 27PSI)
--In example given, Only 13.5PSI....(1 bar)--NOT all that hard to make.....
RE: Borgwarner R2S? - TurboTim - 03-10-2015
Damn who wouldnt want that either!
RE: Borgwarner R2S? - Petar - 03-10-2015
actually 1 bar is exactly 14.5037738 psi.
Google is your friend.
RE: Borgwarner R2S? - Turbo - 03-13-2015
(03-06-2015, 07:31 PM)hooblah Below 3k. 1.5k would be nice. I've seen some R2S graphs showing that it was pushing 2bar MAP at 1400rpm, but it didnt mention what turbos they used.
Did you buy it?
RE: Borgwarner R2S? - hooblah - 03-13-2015
Err well not quite... a 190e 2.5-16 has come up for sale at a very reasonable price and im hoping to see it on Sunday
RE: Borgwarner R2S? - Turbo - 03-13-2015
well the 2,5 190 is a nice looking and it was nice to drive, my father had one many years ago, with a turbo it would be much better