RB Turbos at 5500ft Dyno

Alpina_B3_Lux · 01-13-2011, 04:26 AM

Looks great! Congrats on this and the ongoing tuning.

GeorgeSmooth · 01-15-2011, 08:35 AM

This is another run we did in 4th gear. The car had obviously not adapted to the latest flash as it had only done 25km's and it overshot its boost target. Notice the increase in torque with slightly more boost and the knock event at 5400rpm. I insisted a 4th gear run at the specific dyno as the rollers are relatively light and the car didn't seem to be loading properly in third. That ladies and gentleman is 526lb ft of torque.

At this altitude the turbos are spinning a extra 2.5psi worth to overcome the drop of barometric pressure so this is the efficiency level one would see at the coast at around 22.5psi worth of boost.

dzenno · 01-15-2011, 10:21 AM

CRAZY!

is this pump gas? What did AFRs look like?

If you held 450lb-ft to redline that'd be 600whp

If you held all 524lb-ft to redline that'd be 700whp

Impossible I know but one can dream right

GeorgeSmooth · 01-15-2011, 11:08 AM

Quote:

Originally Posted by dzenno

CRAZY!

is this pump gas? What did AFRs look like?

If you held 450lb-ft to redline that'd be 600whp

If you held all 524lb-ft to redline that'd be 700whp

Impossible I know but one can dream right

I think we will be surprised with the sea level dynos we are going to see with these. I reckon 500whp is a walk in the park with race/meth.

Penn999 · 01-15-2011, 11:09 AM

WOW awesome numbers George! I look forward to more numbers as your flash learns more and more. I experienced larger gains from the procede when I dumped some 104 in the tank. It had never learned above 14psi...dont ask me why. Im not at that level yet...Once I dumped 104 in I saw 16psi; I thought this would go back down to 14psi or so when all of the 104 was out of the tank but 2 refills of shell 93 later and still 16psi! How long did the install process go. Im getting quoted at like 12-14hrs at a BMW indy shop. Seems a bit long to me...

GeorgeSmooth · 01-15-2011, 11:28 AM

Quote:

Originally Posted by Penn999

How long did the install process go. Im getting quoted at like 12-14hrs at a BMW indy shop. Seems a bit long to me...

12-14hrs sounds about right. Its a very frustrating job so a tech that is on a salary will obviously take longer to do the job. I think there is a lot of time to be saved if you do not drop the subframe which must be a good 3 hours of the time they quoted you. We did not drop it and even though I am RHD with a stearing column in the way we managed to do the job.

Rob@RBTurbo · 01-15-2011, 11:33 AM

Cool! Good work George, thanks for sharing!!

cstmx_ryder · 01-15-2011, 11:49 AM

I'm assuming when you said delta, you meant whp......lol. Because if you gained 442 hp just from upped TTs, then I'm willing to sell my kidney and get a set.......lol.

Nonetheless, nice numbers!

Just curious, is it because you guys haven't tuned the car in higher rpm yet and that's why the tq/hp curve dropped off dramatically? Or is it because you adjusted the boost to have it taper like you mentioned, or both?

TIA

Quote:

Originally Posted by GeorgeSmooth

Not sure what you asking me in number 1.

Its a HyperPower dyno made in South Africa. The 374 is the delta before turbos and 442 after. There is easily room for more boost and a ton more timing with race fuel so making 475 at this altitude is a walk in the park. The gains of these turbos seem to be the same as stock when you go from .7bar to 1bar cause it seems the efficiency range starts around 19psi.

ultimateracing335 · 01-15-2011, 01:06 PM

Quote:

Originally Posted by GeorgeSmooth

12-14hrs sounds about right. Its a very frustrating job so a tech that is on a salary will obviously take longer to do the job. I think there is a lot of time to be saved if you do not drop the subframe which must be a good 3 hours of the time they quoted you. We did not drop it and even though I am RHD with a stearing column in the way we managed to do the job.

I left the subframe in also.

GeorgeSmooth · 01-15-2011, 01:27 PM

Quote:

Originally Posted by cstmx_ryder

I'm assuming when you said delta, you meant whp......lol. Because if you gained 442 hp just from upped TTs, then I'm willing to sell my kidney and get a set.......lol.

Nonetheless, nice numbers!

Just curious, is it because you guys haven't tuned the car in higher rpm yet and that's why the tq/hp curve dropped off dramatically? Or is it because you adjusted the boost to have it taper like you mentioned, or both?

TIA

Boost taper is the cause as well as a experiment with the vanos. We still working on the high rpm gear change logic with the flat power line.

klipseracer · 01-15-2011, 02:44 PM

Quote:

Originally Posted by GeorgeSmooth

Boost taper is the cause as well as a experiment with the vanos. We still working on the high rpm gear change logic with the flat power line.

okay, out of everything, THIS interests me. Please elaborate on this experiment

BrianMN · 01-15-2011, 03:05 PM

Quote:

Originally Posted by klipseracer

okay, out of everything, THIS interests me. Please elaborate on this experiment

It seems valve timing is the only thing that's not 'tuned' by the top tunes out there.

I've always wondered if there would be benefits from simple adjustments of valve timing. Much of the stock VVT mapping is to help with emissions/fuel economy, so what if we were to disregard that and only focus on performance?

Penn999 · 01-15-2011, 03:09 PM

Quote:

Originally Posted by ultimateracing335

I left the subframe in also.

So if I just got my m3 rear subframe bushings and quaife lsd in the mail...do you think if I waited and got the turbos the labor would be cheaper to get it all done at once?

Quote:

Originally Posted by klipseracer

okay, out of everything, THIS interests me. Please elaborate on this experiment

+1

GeorgeSmooth · 01-16-2011, 06:33 AM

Quote:

Originally Posted by klipseracer

okay, out of everything, THIS interests me. Please elaborate on this experiment

My tuner is able to alter the Vanos maps. There might be some power left in the cam timing by BMW. We will have to see on this one.

BrianMN · 01-16-2011, 12:52 PM

Quote:

Originally Posted by Penn999

So if I just got my m3 rear subframe bushings and quaife lsd in the mail...do you think if I waited and got the turbos the labor would be cheaper to get it all done at once?

Now this has got to be the best quote ever.
Edit: sorry for the childishness...

Penn999 · 01-16-2011, 01:58 PM

Quote:

Originally Posted by BrianMN

Now this has got to be the best quote ever.

I really dont know a lot about installs, i know theory and physics. I asked a simple question. I dont know why you have to be an ass in every response to my question. I am trying to save as much money as possible while putting this car together in a quick manner. Maybe it was a dumb question, im sorry I dont know it all, but these smartass comments is only childish.

dzenno · 01-16-2011, 02:02 PM

your LSD and bushings are in the rear, turbos are up front...can't see how you could save any money there doing them at the same time..

Penn999 · 01-16-2011, 02:15 PM

Quote:

Originally Posted by dzenno

your LSD and bushings are in the rear, turbos are up front...can't see how you could save any money there doing them at the same time..

I knew that they were in opposite sides but he(George) said dropping the subframe. I didnt know what he meant by that and if I help save me money on the install. Im sure its gonna cost me 1000 for the lsd and rear subframe bushings and another 1200 for the turbos. Thats a lot of money to me...I was just looking to cut some of that. I am by no means an expert and I am looking for as much help as I can get. Thanks dzenno. I appreciate your input.

GeorgeSmooth · 01-16-2011, 02:27 PM

Quote:

Originally Posted by Penn999

I knew that they were in opposite sides but he(George) said dropping the subframe. I didnt know what he meant by that and if I help save me money on the install. Im sure its gonna cost me 1000 for the lsd and rear subframe bushings and another 1200 for the turbos. Thats a lot of money to me...I was just looking to cut some of that. I am by no means an expert and I am looking for as much help as I can get. Thanks dzenno. I appreciate your input.

You might save money by telling your tech that you giving them all that work to do and he should discount you somewhat so maybe you will save a few 100.

Slidewayz · 01-16-2011, 02:31 PM

How does one procure the RB turbos? How much do they cost?

dzenno · 01-16-2011, 02:41 PM

Quote:

Originally Posted by Penn999

I knew that they were in opposite sides but he(George) said dropping the subframe. I didnt know what he meant by that and if I help save me money on the install. Im sure its gonna cost me 1000 for the lsd and rear subframe bushings and another 1200 for the turbos. Thats a lot of money to me...I was just looking to cut some of that. I am by no means an expert and I am looking for as much help as I can get. Thanks dzenno. I appreciate your input.

Np...I agree with George in asking them to give you a package deal as they'll be doing so much...FYI, cars have a front AND rear subframe...your bushings are for the rear subframe...front subframe doesn't have to be lowered for the install but it's a lot tougher to do without lowering it due to very tight space there

BrianMN · 01-16-2011, 02:42 PM

I believe Rob is close to being 'caught up' and is taking orders for more with not much of a lead time. Not sure if the $2899 intro price is still active.

01-13-2011, 04:26 AM	#23
Alpina_B3_Lux Colonel 264 Rep 2,563 Posts Drives: Audi R8 LMX, BMW M550i xDrive Join Date: Feb 2008 Location: Germany iTrader: (0) Garage List 2009 335i [8.90]	Looks great! Congrats on this and the ongoing tuning. __________________ Audi R8 LMX, BMW M550i xDrive (G30 LCI); gone: Alpina B3 3,3 (E46), BMW 335i, Audi R8 V10 manual, Audi R8 V10, BMW M235i, BMW 550i F10
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01-15-2011, 08:35 AM	#24
GeorgeSmooth Lieutenant 40 Rep 565 Posts Drives: 2008 E90 335i AT Join Date: Feb 2008 Location: South Africa iTrader: (0)	This is another run we did in 4th gear. The car had obviously not adapted to the latest flash as it had only done 25km's and it overshot its boost target. Notice the increase in torque with slightly more boost and the knock event at 5400rpm. I insisted a 4th gear run at the specific dyno as the rollers are relatively light and the car didn't seem to be loading properly in third. That ladies and gentleman is 526lb ft of torque. At this altitude the turbos are spinning a extra 2.5psi worth to overcome the drop of barometric pressure so this is the efficiency level one would see at the coast at around 22.5psi worth of boost. __________________ 08 E90 335i AT RB Turbos -NX Wet Kit - Chiplogic Flash or Procede V5- M3 Diff - AE Exhaust- Forge Dv's - Helix Intercooler - AR DP's - P3 Boost Gauge - Vishnu Meth- Stett Chargepipe and CAI 09 C63
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01-15-2011, 10:21 AM	#25
dzenno Banned 286 Rep 5,876 Posts Drives: Join Date: Feb 2006 iTrader: (1)	CRAZY! is this pump gas? What did AFRs look like? If you held 450lb-ft to redline that'd be 600whp If you held all 524lb-ft to redline that'd be 700whp Impossible I know but one can dream right Last edited by dzenno; 01-15-2011 at 10:27 AM..
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01-15-2011, 11:09 AM	#27
Penn999 Lieutenant Colonel 52 Rep 1,661 Posts Drives: 335i coupe Join Date: May 2010 Location: VA iTrader: (3)	WOW awesome numbers George! I look forward to more numbers as your flash learns more and more. I experienced larger gains from the procede when I dumped some 104 in the tank. It had never learned above 14psi...dont ask me why. Im not at that level yet...Once I dumped 104 in I saw 16psi; I thought this would go back down to 14psi or so when all of the 104 was out of the tank but 2 refills of shell 93 later and still 16psi! How long did the install process go. Im getting quoted at like 12-14hrs at a BMW indy shop. Seems a bit long to me... __________________ 07' MT, Quaife LSD, BMW Performance LED Steering Wheel, HPF FMIC, AA BOV, HPF Exhaust, DCI, Procede V5, AR Stage 1 oil cooler, AR OCC, AR CL DP's, Vishnu Meth Kit, UUC SSK+DSSR, UUC Shift knob, (19 inch)VMR V715's/Yokohama Advan AD08's, Hartge Pedals and Floor Mats. Awaiting Install: M3 Rear Subframe Bushings, Full M3 suspension bits, AST 4100's, DSS axles. Future plans: Vishnu Single turbo kit
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01-15-2011, 11:33 AM	#29
Rob@RBTurbo Lieutenant Colonel 390 Rep 1,571 Posts Drives: '08 335I AT, '14 M6 DCT Join Date: Jan 2008 Location: St. Louis, MO iTrader: (5)	Cool! Good work George, thanks for sharing!!
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01-16-2011, 02:02 PM	#39
dzenno Banned 286 Rep 5,876 Posts Drives: Join Date: Feb 2006 iTrader: (1)	your LSD and bushings are in the rear, turbos are up front...can't see how you could save any money there doing them at the same time..
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01-16-2011, 02:31 PM	#42
Slidewayz Major 37 Rep 1,177 Posts Drives: 2007 335i Join Date: Jan 2009 Location: Oakland, CA iTrader: (5)	How does one procure the RB turbos? How much do they cost?
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01-16-2011, 02:42 PM	#44
BrianMN Banned 117 Rep 2,428 Posts Drives: 4 Door Family Sedan Join Date: Sep 2009 Location: Minneapolis iTrader: (7)	I believe Rob is close to being 'caught up' and is taking orders for more with not much of a lead time. Not sure if the $2899 intro price is still active.
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