Vishnu Single Turbo Road Testing, Walkaround, Procede Datalogs

OpenFlash · 02-09-2012, 05:21 PM

A 10-11psi run through the gears:

A little walk-around with some revving:

Datalogs:

Comments:

1) I've never heard a n54 without some degree of wastegate rattle/noise. Now I know what one sounds like when it's gone. Glorious.

2) Only running mechanical wg spring pressure of 11psi. So boost is only 11psi, taper to 10psi by redline. The 1psi taper is because the boost signal is referenced at the compressor housing so it doesn't take into account intercooler pressure loss. We should have the Procede controlling boost within the next few days

3) Car is running on 91oct (no meth) and the fuel in the tank is about 6 months old.

4) Meth hardware is already installed so once we drive it around for a couple more days (initial shakedown), we'll start to turn things up a few notches.

5) From a low RPM pull, full boost by 3700rpm (with no electronic boost control aids). Between gears, boost stays strong at 6-7psi and full boost hits HARD when the next gear engages. I'd stay it holds boost between gears better than the factory turbos and a WHOLE lot better than the upgraded twins. Shift hard and fast and the torque hits so fast it's like someone rear ended you

6) Even at this low boost, the reduction in exhaust back pressure is proving to make the car less knock prone/octane dependant. I'm very curious to see how much power/boost it can safely support on pump gas. Should be a good bit more than what we see with upgraded twins.

Cheers,
Shiv

EastBayE90 · 02-09-2012, 05:24 PM

ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Smiles ear to ear Shiv. You are the MAN!!!!!

smellfish · 02-09-2012, 05:32 PM

Motherofgod

onesuperboi · 02-09-2012, 05:32 PM

Thanks for everything Shiv!

First running verified single turbo?

Young_Man · 02-09-2012, 05:36 PM

Sh*t Just Got Real!

pentaxis · 02-09-2012, 05:39 PM

Looks like a fantastic start. Can't wait to see what you do with this with the wick turned up!

YoungALaw · 02-09-2012, 05:40 PM

DOPE.

Irishace · 02-09-2012, 05:40 PM

Pretty friggen impressive. Nice work.

MikeB@fftec · 02-09-2012, 05:41 PM

Nice!

OpenFlash · 02-09-2012, 05:44 PM

Quote:

Originally Posted by (-(ellblazer420

ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

Smiles ear to ear Shiv. You are the MAN!!!!!

Thanks man. But this definitely was a group effort. Our pals at FFTEC fabricated one hell of a kit. Knowing that the hardware is sound makes it that much easier for me to focus on the tuning side of things. Once we hit our power goals, we'll provide ordering information, pricing, options, etc,. For now, I'm just happy to see my baby back on the road!

Cheers
Shiv

Hisam135i · 02-09-2012, 05:46 PM

SHIT JUST GOT REAL!!!!!!

now I have to save up and by a procede and go from there

1faste903series · 02-09-2012, 05:49 PM

Um okay.I don't here the waste gate dump opening up? Thought it was going to be external ?

Jeff@TopGearSolutions · 02-09-2012, 05:49 PM

YES!!!

Rob@RBTurbo · 02-09-2012, 05:52 PM

Sounds awesome.

Throw it on the dyno!!!

One question though, how will any electronic boost control aids make boost response any better? The gate is held shut at all times until signaled to open at 11psi correct? If so, don't see how it can be improved upon.

GeorgiaTech335coupe · 02-09-2012, 05:54 PM

Quote:

Originally Posted by shiv@vishnu

Once we hit our power goals,

Cheers
Shiv

And what would those be?

posite · 02-09-2012, 05:55 PM

Me like!

Q4P · 02-09-2012, 05:57 PM

good to see...

OpenFlash · 02-09-2012, 05:59 PM

Quote:

Originally Posted by RobBeck

Sounds awesome.

Throw it on the dyno!!!

One question though, how will any electronic boost control aids make boost response any better? The gate is held shut at all times until signaled to open at 11psi correct? If so, don't see how it can be improved upon.

Because wastegates tend to crack just before their spring rate pressure. So bleeding off the signal until the point at which boost reaches the target, will keep it completely closed and improve spool-up slightly.

OpenFlash · 02-09-2012, 06:01 PM

Quote:

Originally Posted by GeorgiaTech335coupe

And what would those be?

I'll be happy with 600whp. Soon we will see if the engine feels the same way

Beemw335 · 02-09-2012, 06:01 PM

The kick in your seat when you shifted really shows how much torque this thing has.
Great work shiv!

Q4P · 02-09-2012, 06:05 PM

Quote:

Originally Posted by shiv@vishnu

I'll be happy with 600whp. Soon we will see if the engine feels the same way

on P-U-M-P?

...doubt it but I'll happily be proved wrong

I certainly hope final and potential numbers of this turbo will be much higher. (race gas, meth and high boost)

kris@fftec · 02-09-2012, 06:21 PM

when are you going to let us take a ride in this thing =D!!!!?!?!?

02-09-2012, 05:21 PM	#1
OpenFlash 1737 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	Vishnu Single Turbo Road Testing, Walkaround, Procede Datalogs A 10-11psi run through the gears: A little walk-around with some revving: Datalogs: Comments: 1) I've never heard a n54 without some degree of wastegate rattle/noise. Now I know what one sounds like when it's gone. Glorious. 2) Only running mechanical wg spring pressure of 11psi. So boost is only 11psi, taper to 10psi by redline. The 1psi taper is because the boost signal is referenced at the compressor housing so it doesn't take into account intercooler pressure loss. We should have the Procede controlling boost within the next few days 3) Car is running on 91oct (no meth) and the fuel in the tank is about 6 months old. 4) Meth hardware is already installed so once we drive it around for a couple more days (initial shakedown), we'll start to turn things up a few notches. 5) From a low RPM pull, full boost by 3700rpm (with no electronic boost control aids). Between gears, boost stays strong at 6-7psi and full boost hits HARD when the next gear engages. I'd stay it holds boost between gears better than the factory turbos and a WHOLE lot better than the upgraded twins. Shift hard and fast and the torque hits so fast it's like someone rear ended you 6) Even at this low boost, the reduction in exhaust back pressure is proving to make the car less knock prone/octane dependant. I'm very curious to see how much power/boost it can safely support on pump gas. Should be a good bit more than what we see with upgraded twins. Cheers, Shiv Last edited by OpenFlash; 02-09-2012 at 05:26 PM..
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02-09-2012, 05:24 PM	#2
EastBayE90 Formerly (-(ellblazer420 48 Rep 703 Posts Drives: 07 E90 335i M/T, 15 F80 M3 DCT Join Date: Sep 2010 Location: SF East Bay, CA iTrader: (0) Garage List 2007 BMW 335I E90 [8.84]	ahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Smiles ear to ear Shiv. You are the MAN!!!!! __________________ (410whp 445ft/lbs \| DCI + Meth Only) OpenFlash OTS Stage 1 Flash \| Vishnu PWM Meth Kit \| Vishnu DCI\| Forge DVs Last edited by EastBayE90; 02-09-2012 at 05:38 PM..
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02-09-2012, 05:32 PM	#3
smellfish No one on the corner has stagger like us 50 Rep 343 Posts Drives: '11 AW E90 Join Date: Dec 2008 Location: COS iTrader: (2)	Motherofgod __________________
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02-09-2012, 05:32 PM	#4
onesuperboi Major 52 Rep 1,357 Posts Drives: '08 e92 335i COBB 4.01 Stage 1 Join Date: Aug 2008 Location: Bay Area, CA (Alameda) iTrader: (6)	Thanks for everything Shiv! First running verified single turbo?
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02-09-2012, 05:36 PM	#5
Young_Man Lieutenant 42 Rep 568 Posts Drives: E90 335i Join Date: Jun 2011 Location: Earth iTrader: (4)	Sh*t Just Got Real!
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02-09-2012, 05:39 PM	#6
pentaxis Captain 30 Rep 685 Posts Drives: Space Grey E92 335i Join Date: Feb 2010 Location: Portland, OR iTrader: (3)	Looks like a fantastic start. Can't wait to see what you do with this with the wick turned up!
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02-09-2012, 05:40 PM	#7
YoungALaw ITS LIT FAM. 19 Rep 120 Posts Drives: 2017 SSII F80 M3 Join Date: Nov 2010 Location: Los Angeles, CA iTrader: (0)	DOPE. __________________ 2017 F80 M3 SSII
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02-09-2012, 05:40 PM	#8
Irishace ElevenPointFive 326 Rep 2,450 Posts Drives: E90 335 Join Date: Oct 2009 Location: Toronto iTrader: (1)	Pretty friggen impressive. Nice work. __________________ 2008 E90 335xi - N54 Daily Driver MHD Stage 2+ ~ CPE DPs ~ BMS Intake ~ AMS FMIC
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02-09-2012, 05:41 PM	#9
MikeB@fftec Private First Class 13 Rep 185 Posts Drives: 03 Evo 8 Join Date: Jan 2012 Location: Bay Area, CA iTrader: (0)	Nice!
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02-09-2012, 05:46 PM	#11
Hisam135i Major 54 Rep 1,166 Posts Drives: 335i Join Date: Dec 2010 Location: Irvine, CA iTrader: (0)	SHIT JUST GOT REAL!!!!!! now I have to save up and by a procede and go from there __________________ 2008 Monaco Blue 335i \| Terracotta \| Premium \| Auto \| Comfort Access \| Matte-black Grills \| Carbon Fiber Splitters \| 20% Tint \| 1- point E9x Picture Game \| Staggered 19' VMR V701 \| Legal Disclaimer: My posts on this website cannot be held against me in any issues, such as warranty claims. \|
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02-09-2012, 05:49 PM	#12
1faste903series Banned 0 Rep 37 Posts Drives: 335i Join Date: Feb 2012 Location: New jersey iTrader: (0)	Um okay.I don't here the waste gate dump opening up? Thought it was going to be external ?
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02-09-2012, 05:49 PM	#13
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	YES!!!
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02-09-2012, 05:52 PM	#14
Rob@RBTurbo Lieutenant Colonel 387 Rep 1,571 Posts Drives: '08 335I AT, '14 M6 DCT Join Date: Jan 2008 Location: St. Louis, MO iTrader: (5)	Sounds awesome. Throw it on the dyno!!! One question though, how will any electronic boost control aids make boost response any better? The gate is held shut at all times until signaled to open at 11psi correct? If so, don't see how it can be improved upon.
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02-09-2012, 05:55 PM	#16
posite Second Lieutenant 12 Rep 232 Posts Drives: 07 335i Join Date: Jan 2011 Location: TX iTrader: (5)	Me like! __________________ 07 335i 12 335i 09 335i
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02-09-2012, 05:57 PM	#17
Q4P Colonel 83 Rep 2,291 Posts Drives: Too Much Join Date: Apr 2011 Location: World iTrader: (0)	good to see... __________________ 2jZ + RB26 + 4G63 + LS9 + N54 =
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02-09-2012, 06:01 PM	#20
Beemw335 Colonel 62 Rep 2,013 Posts Drives: 335i Join Date: Mar 2011 Location: My car is my home iTrader: (2)	The kick in your seat when you shifted really shows how much torque this thing has. Great work shiv!
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02-09-2012, 06:21 PM	#22
kris@fftec New Member 0 Rep 7 Posts Drives: 2004 infinti g35 Join Date: Feb 2012 Location: hayward ca iTrader: (0)	when are you going to let us take a ride in this thing =D!!!!?!?!?
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