MHD N55 & WedgePerformance Testing

[Rob_BMW_PNW]

Originally Posted by Newguy123

holy crap thats a lot of boost for the stock fuel system, have a log where you shift say 3-4 and keep going? this is looking amazing

I have one I think of the PS2 shifting from 3rd to 4th going, will have to dig through



Edit:
3rd into 4th, shifted from 4th to 5th at like 6k

http://www.datazap.me/u/robertnguyen...-4-12-14-15-16

[Newguy123]

damn looks solid! niceeee thanks for posting

Originally Posted by Rob_BMW_PNW

I have one I think of the PS2 shifting from 3rd to 4th going, will have to dig through



Edit:
3rd into 4th, shifted from 4th to 5th at like 6k

http://www.datazap.me/u/robertnguyen...-4-12-14-15-16

[Rob_BMW_PNW]

Originally Posted by Newguy123

damn looks solid! niceeee thanks for posting

I did this log right after I did my 4th gear log from above for Ken to analyze, I dont think I had my meth setup right on the 4th gear one, since my AEM kit is on Tmap voltage and I am not a 3.5 TMap, everything was changed, and I had a slight hiccup earlier in the day when I had it on my old setting when doing my first ever 4th gear pull, which I was never able to replicate ( I thought it was meth bog), but I have the meth starting at a even lower voltage and I have done several 3rd and 4th gear runs

I have 1.5 gallons of pure methanol in my gas tank now, and if I dd my math right it should be 94.5 octane + the 80% methanol mix I have in the meth kit.

Minimal to zero corrections in S+/S mode

[WedgePerformance]

Originally Posted by Newguy123

holy crap thats a lot of boost for the stock fuel system, have a log where you shift say 3-4 and keep going? this is looking amazing

Was a little too damp to get a 3rd / 4th and way too fast to keep pulling in 5th. So as soon as it dries up I'll be getting more logs, but will increase the top end to tighten up maf and maf request so the car is on target.

[houtan]

Nice log rob. Didn't know you can pour meth directly into the gas tank. What is the advantage doing that vs using some e85 to bump octane?

[WedgePerformance]

Originally Posted by houtan

Nice log rob. Didn't know you can pour meth directly into the gas tank. What is the advantage doing that vs using some e85 to bump octane?

You can find a lot of information regarding alternative octane booster and fuel mixing. Most information I found said the max recommended is 10% for methanol. There are other options as well that have a higher octane rating. The biggest issues is availability. If you have a chemical distributor near by, most of the stuff you can use is available at a much lower price than you would pay from a paint supplier or hardware store.

Recommend doing the research to see if it's right for you and how much you should use if you have an alternative high octane fuel available for use.

[Rob_BMW_PNW]

Originally Posted by houtan

Nice log rob. Didn't know you can pour meth directly into the gas tank. What is the advantage doing that vs using some e85 to bump octane?

Fuel in general, ethanol, and methanol are all corrosive, if the car was over 20 years old, I might be concerned

Methanol is the most corrosive out of all of them, so people only recommend a little bit, the most I have ever run was 1 gallon with like 9 gallons of pump, and I only did that because I had a suspect 4 gallons of 'bad gas'.

Currently have a little over a gallon of it in with a pump to top it off.

And you got people running 5+ gallons of ethanol in their tanks for long periods of times.

I used to work at a chemical plant where I could get 1 gallon of pure methanol for 4 bucks, we only have one E85 location and they close at like 6pm.

[Rob_BMW_PNW]

Starting to make a lot of headway in tuning with our N55s Ps2s

http://datazap.me/u/robertnguyen723/94-octane-ps2?log=0

Newest map from Wedge that I have had the pleasure of testing
92 octane e10, with probably half a gallon or so of methanol in the gas tank still
70-80% meth injection mixture on top of that

Car feels like a rocket compared to the previous map, added some extra timing throughout the powerband

220 load ceiling been broken for a while now with the PS2. World first? Perhaps ;p

[houtan]

Nice. Are you able to stay wot after it shifts into 4th?

[Rob_BMW_PNW]

I thought one of the logs did that where I went into 4th still

Edit, do a drop down to the 2nd log, I am WOT through 4th about 6300 til I shift again

[houtan]

Saw the log. Thanks for posting. Getting misfires here and there after shifting has been a big problem. Glad to see it is gone.

[Rob_BMW_PNW]

Originally Posted by houtan

Saw the log. Thanks for posting. Getting misfires here and there after shifting has been a big problem. Glad to see it is gone.

Like sputter, half engine light or what?

We've essentially maxed out the oem fuel system even with the stage 2 lpfp at 22~ psi, anything else will cause sputter

Getting a nice fun 18~ psi map for our dyno day and for dailying. It'll be nice since both Ken and I are there, two different setups, his should be PI by then running probably E85 and Ill be on stock fuel system (upgraded LPFP is a must no matter what) running pump gas with meth injection and methanol in the tank to help with corrections etc

Should be able to show both sides of the coin if you know what I am saying

[houtan]

Originally Posted by Rob_BMW_PNW

Like sputter, half engine light or what?

We've essentially maxed out the oem fuel system even with the stage 2 lpfp at 22~ psi, anything else will cause sputter

Getting a nice fun 18~ psi map for our dyno day and for dailying. It'll be nice since both Ken and I are there, two different setups, his should be PI by then running probably E85 and Ill be on stock fuel system (upgraded LPFP is a must no matter what) running pump gas with meth injection and methanol in the tank to help with corrections etc

Should be able to show both sides of the coin if you know what I am saying

yeah, sputter. That has been the big problem on higher boost dct cars. Fine for a single gear pull, but when the car shifts at redline, immediate sputter.

Nice, looking forward to seeing both results!

[WedgePerformance]

Figured I would post up some log porn as people are always skeptical and like to see pictures.

The Pure Turbos Stage 2 turbo is working extremely well and we're getting this dialed in with flash only.

Port Injection is going in on Friday if everything goes well. Thanks to Fuel-IT for all their support with regard to the fueling.

E20 with Meth 80/20 - 25 PSI peak @ 6600 RPM

DataZap

Disclaimer... This map will not work for stock fuel system. HPFP crashed at the top and caused the car to break up. This was just for testing.

[Tricki]

It's getting about that time ??

[Rob_BMW_PNW]

Originally Posted by houtan

yeah, sputter. That has been the big problem on higher boost dct cars. Fine for a single gear pull, but when the car shifts at redline, immediate sputter.

Nice, looking forward to seeing both results!

Both Ken and I have the sputter problem, essentially maxed out our fuel system, does it sometimes, sometimes or does not.

I have had it happen twice, both during the post shift spike to 26 psi.

Ken has had it happen before the shift, but he is doing 4th gear runs while I am doing 3rd, nonetheless it is happening, essentially we are maxing the volume that it can do with PUMP gas.


On the 18th we will have dyno numbers, hopefully his PI will be on, and I will be running a healthy 18 or so psi pump map (good for dailying or throwing it down), it is going to show best of both worlds.

[houtan]

Thanks. So did you guys get to a point where the car wasn't breaking up? For example, at 18 psi? Or something higher or lower.

[WedgePerformance]

Originally Posted by houtan

Thanks. So did you guys get to a point where the car wasn't breaking up? For example, at 18 psi? Or something higher or lower.

I didn't have any issues with 18 psi, but every car is a bit different.

[Rob_BMW_PNW]

Originally Posted by houtan

Thanks. So did you guys get to a point where the car wasn't breaking up? For example, at 18 psi? Or something higher or lower.

Deductive reasoning would put it at anything under 25 psi ;P

I think 18 psi is fine, Ive peaked at 22, and tapered to 18 for a while, even wot into 4th and 5th shifts

[M335]

Originally Posted by Rob_BMW_PNW

Deductive reasoning would put it at anything under 25 psi ;P

I think 18 psi is fine, Ive peaked at 22, and tapered to 18 for a while, even wot into 4th and 5th shifts

How about another pump inline like AEM 380lph or Walbro 450lph with 07Tundra adapter and stage 2 lpfp in tank?

[WedgePerformance]

Originally Posted by M335

How about another pump inline like AEM 380lph or Walbro 450lph with 07Tundra adapter and stage 2 lpfp in tank?

It won't help. Injectors can't handle the pressure drop from the HPFP.

[WedgePerformance]

Originally Posted by M335

Ken,do you know how many cc's n55 injectors? is it possible to upgrade bigger injectors?

It's not the injector that is the limiting factor. It's the high pressure fuel pump.

Nostrum shows a direct replacement that should be out. Part number H060-0085. According to their data, 30g/sec @ 100 bar

http://www.nostrumenergy.com/PDF/Nos...g-10-02-16.pdf

BMW 3.0L Turbo I6, N55/S55 Engine Codes
2010-2016 1 Series, 2 Series, 3 Series, 4 Series, 5 Series
30g/sec @ 100 bar


Edit, Well the PDF information is different than what they publish online.

23.9g/sec @100 bar (OEM 13.7g/sec @ 100bar)
Direct fit – Premium K-DI
Quantity per Engine: 6