[bahn]

I've made posts regarding my experience in the main N55 MHD thread but I wanted to make a separate post to make my anecdotal experiences with Ken WedgePerformance easier to find and view.

The car:
2011 E92 335i xDrive 6AT
* Stock turbo, Stock FMIC, Stock Intake & Filter
* Catless downpipe
* Chargepipe
* Alpina B3 TCU Flash

I contacted Ken about doing a custom E30 tune and was elated when I learned he grew up in the same town as I did. I was lucky enough to catch him on a day when he was back in the area for an in person tune and met up. A few revisions later and I could feel the difference between Kens E30 tune and the official MHD OTS E30 tune like night and day, getting on boost was very very smooth. Here's where we left it after an hour:

http://www.datazap.me/u/bellium/cust...-27-28&solo=15

Very good looking, I'm just going to point out a few areas. Peak boost: 19 PSI, Boost @ 4600 RPM: 18.2 PSI, Boost @ 5000 RPM 16.6 PSI & Boost @ 6700 RPM: 12.5 PSI

Later that night I ran into some torque limiters due to the Alpina flash not raising the torque limits on the xDrive AT's like it does on the RWD ones. Ken was super quick to provide revision updates to address the problems. I then decided I wanted to get as aggressive as we could with this tune while still being safe. Ken was more than happy to oblige and was extremely patient and forth coming with questions and requests I had. I asked to ramp WGDC into the high 90's at redline. Finally I asked to ramp WGDC up aggressively post-spool in the midrange to maximize the 4600 RPM+ boost levels. He stated he was worried about overboost during gear changes but sent me a revision for testing.

Here's where we are now:

http://www.datazap.me/u/bellium/cust...25-26-27-28-29

Peak boost: 22 PSI, Boost @ 4600 RPM: 20 PSI, Boost @ 5000 RPM 18.1 PSI & Boost @ 6700 RPM: 12.8 PSI

Peak boost could be even higher but we had to drop it back down due to hitting the stock N55 TMAP's boost ceiling. Car pulls like a freaking freight train, shifts @ 6000 RPM drop you right back into the sweet spot at 4600 RPM with boost levels of 21 PSI, it hits hard. Daily driving is unaffected and throttle input seems right on and way less touchy than the current (v0.24) OTS maps.

Being AWD I get the added benefit of launching in 1st gear and it sometimes sticking Talk about neck snapage, Ken is estimating over 500ftlbs of torque @ 3500.

Here's a 1st - 4th launch:

http://www.datazap.me/u/bellium/cust...3-4-6-13-15-16

I have some timing corrections now due to my stock FMIC but after talking with Ken I think I'll add meth first. I'll be hitting the drag strip once they open back up for the summer and I'm hoping to either disconnect the transfer case encoder motor and get some dyno pulls done locally on a RWD dyno or drive to Chicago to put some numbers down on an AWD dyno.

In summary, Ken WedgePerformance is a great guy, he's a killer tuner, responsive and loves making cars go faster. My car pulls like a freight train, decapitates my passengers and sometimes rips the wheels loose with xDrive in 2nd @ 30 mph. Want to go fast and still feel like you're driving a luxury car on your way to work? WedgePerformance

EDIT:
Dyno Results: http://www.e90post.com/forums/showpo...0&postcount=74

[bbnks2]

This is what people want to see! Thanks to you both.

Maybe post up some vdyno for your car to show what kind of gains you're seeing over stock while you wait on a real dyno?

[victorg95]

Originally Posted by bbnks2

This is what people want to see! Thanks to you both.

Maybe post up some vdyno for your car to show what kind of gains you're seeing over stock while you wait on a real dyno?

I'd love to see numbers as well

[pipsindamix]

100% wastegate duty cycle... can the stock turbo last long under these conditions? curious to see your dyno #s, hopefully 400rwhp/500rwtq, that would be sweet!

[ANMVQ]

Just PM'd Ken for a custom 93 tune !

[houtan]

If you go with meth, you're going to laugh at your iats. Just going to be constant for an entire pull. Meth with stock intercooler is nice because you get awesome iat and don't loose boost from pressure drop with a bigger intercooler. Downside is it's another thing to manage.

My buddy was running ps2 with meth and stock intercooler, and I remember no matter what his iat was always at like 87 degrees. It was awesome.

The only thing I have seen come close to meth at iat control is the new mega huge vrsf intercooler, which my friend has now. But on a stock turbo the pressure drop probably outweighs the advantages.

Looking forward to seeing your results with meth.

[houtan]

Originally Posted by pipsindamix

100% wastegate duty cycle... can the stock turbo last long under these conditions? curious to see your dyno #s, hopefully 400rwhp/500rwtq, that would be sweet!

No doubt it is maxing out the hw, but the stock turbo has proven to be very durable. The other thing to think about is you are not constantly having the pedal mashed driving around. Plus, if the turbo does die, it gives you a really good reason to go Pure stage two! 😉

[bahn]

Here's a vd from Ken:

[bahn]

Originally Posted by houtan

No doubt it is maxing out the hw, but the stock turbo has proven to be very durable. The other thing to think about is you are not constantly having the pedal mashed driving around. Plus, if the turbo does die, it gives you a really good reason to go Pure stage two! 😉

^ This, the N55 turbo is not like the fragile N54 stock turbos. There's a couple guys who have been targeting 90-100% on JB4's for a couple years without issues. But like houtan said, if it does die then I have a reason to go PS2

I was really surprised to learn Ken is still running the stock intercooler on his PS2 with the help of meth as well

[bahn]

Originally Posted by ANMVQ

Just PM'd Ken for a custom 93 tune !

You wont be disappointed.

[GripAndRip]

Originally Posted by bahn

Here's a vd from Ken:

This is so exciting. I'm buying my cp now. Can't wait to get on this train.

[victorg95]

Originally Posted by bahn

Here's a vd from Ken:

Wow awesome numbers, definitely gonna go to him

[Turbod]

Originally Posted by bahn

Here's a vd from Ken:

4,000 lbs is a heavy car.

[GripAndRip]

Originally Posted by Turbod

4,000 lbs is a heavy car.

Curb weight is 3825 isn't it? Now include the weight of the driver.

[bahn]

Originally Posted by GripAndRip

Curb weight is 3825 isn't it? Now include the weight of the driver.

Yeah + 3/4 tank of fuel. XDRIVE isn't light.

[GripAndRip]

Originally Posted by bahn

Yeah + 3/4 tank of fuel. XDRIVE isn't light.

Curb weight includes a full tank of gas. It should be the full weight of the car minus passengers and "cargo". However I'm seeing a lot of different numbers for curb weight. Plus I think the number I quoted is for a 2011 E90xi. Regardless your freaking car pulls hard thanks to the tune.

[GripAndRip]

This is straight from the manual. I found the e92 manual, and it only seems to state approved weights. You could check your manual, or I think the side of the door frame might say curb weight.

3824# without passengers and with a full tank.

[bahn]

Originally Posted by GripAndRip

Curb weight includes a full tank of gas. It should be the full weight of the car minus passengers and "cargo". However I'm seeing a lot of different numbers for curb weight. Plus I think the number I quoted is for a 2011 E90xi. Regardless your freaking car pulls hard thanks to the tune.

Touche, I'll be on the dyno within the next week I'll be operating in "rwd" mode though by disconnecting the encoder motor on the transfer case.

[GripAndRip]

Originally Posted by bahn

Touche, I'll be on the dyno within the next week I'll be operating in "rwd" mode though by disconnecting the encoder motor on the transfer case.

Either way I'm pretty sure you are near 4000lb and Ken knows what he's doing obviously. I bought my cp right when I saw your log. It's time haha. Once I get the cp I'll get my tune from him. The dp will be a later revision for me I think. Maybe I'll post so people can see how much a dp helps or not since our cars are almost identical.

Going rwd on an XI won't mess with the numbers at all?

[bbnks2]

Originally Posted by GripAndRip

Either way I'm pretty sure you are near 4000lb and Ken knows what he's doing obviously. I bought my cp right when I saw your log. It's time haha. Once I get the cp I'll get my tune from him. The dp will be a later revision for me I think. Maybe I'll post so people can see how much a dp helps or not since our cars are almost identical.

Going rwd on an XI won't mess with the numbers at all?

Yeah, I wonder this as well, wouldn't the parasitic loss of FWD shafts still be present even if "power" isn't being distributed to the front wheels?

That Vdyno plot isn't accurate at all.

[bahn]

Originally Posted by bbnks2

Yeah, I wonder this as well, wouldn't the parasitic loss of FWD shafts still be present even if "power" isn't being distributed to the front wheels?

That Vdyno plot isn't accurate at all.

There will be a tiny bit of loss due to the tail shaft section of the transmission but the transfer case and front axles won't be spun with the encoder motor unplugged. Numbers will be more like a rwd car.

[WedgePerformance]

Originally Posted by bahn

There will be a tiny bit of loss due to the tail shaft section of the transmission but the transfer case and front axles won't be spun with the encoder motor unplugged. Numbers will be more like a rwd car.

Just make sure you don't have snow tires. LOL