VF Engineering HEX Tune

[BMW M4 PWR]

I agree with a lot of the statements you just made^^^ And yes we shall organize an Annapolis meet soon!

[VF-Engineering]

Originally Posted by BMW M4 PWR

... I still wanna see more HEX stage 2 dyno's first... their Stage 2+ with 100oct dyno'd the indentical power and torque as their stage 2 on 91oct* Wtf? That didn't sit well with me... now I need to see more stage 2 and stage 2+ dyno's without Bullshit 91oct piss fuel in it

Hey BMW M4 PWR,

I'm still curious what 2 dyno plots ... Stage TWO and Stage TWO+ ... you're looking at that seemingly made identical power.

I read this same comment from you in another thread as well, and would like to make sure we are looking at the same thing in order to properly dissect the numbers.

[BMW M4 PWR]

According to your own dyno chart result you posted and linked in... you guys "STAGE 2 +" all out tune did 492 uncorrected on a 6mt where as the "STAGE 2 non-plus" tune did essentially the same number on 91oct* (489whp) ...I/we would of expected to see over 500whp EASY if the tune was supposedly more aggressive and set to exploit 100oct fuel over 91oct... ?


Link = http://f80.bimmerpost.com/forums/sho...67&postcount=3


For reference, a JB4 easily does over 500whp & 550+rwt on 100oct withOUT any other mods but the controller on map 7! Where as on its map 2 (and 93oct) it's in the 470's whp (on a good day)... point is, it exploits the octane difference between 93oct and 100oct well... it seems yours doesn't change much in peak power OR torque going from a more extreme 91oct fuel-to-100oct fuel (an even bigger delta...) ? Either your stage 2 and stage 2+ tunes aren't much different from each other in timing, afr and tuned map aggressiveness or something doesn't quite add up here? That's a BIG difference in fuel quality and it should reflect in the dyno numbers, simply put* No?

[EALm4]

Originally Posted by BMW M4 PWR

According to your own dyno chart result you posted and linked in... you guys "STAGE 2 +" all out tune did 492 uncorrected on a 6mt where as the "STAGE 2 non-plus" tune did essentially the same number on 91oct* (497whp) ...I/we would of expected to see over 500whp EASY if the tune was supposedly more aggressive and set to exploit 100oct fuel over 91oct... ?


Link = http://f80.bimmerpost.com/forums/sho...67&postcount=3


For reference, a JB4 easily does over 500whp & 550+rwt on 100oct withOUT any other mods but the controller on map 7! Where as on its map 2 (and 93oct) it's in the 470's whp (on a good day)... point is, it's exploits the octane difference between 93oct and 100oct well... it seems yours doesn't change much in peak power OR torque going from a more extreme 91oct fuel-to-100oct fuel (an even bigger delta...) ? Either your stage 2 and stage 2+ tunes aren't much different from each other in timing, afr and tuned map aggressiveness or something doesn't quite add up here? That's a BIG difference in fuel quality and it should reflect in the dyno numbers, simply put* No?

but the GTS burbbles thooooo that makes bitches wet...that's all that matters.

[BMW M4 PWR]

Originally Posted by EALm4

but the GTS burbbles thooooo that makes bitches wet...that's all that matters.

"True dat..."🙌🙌😂

ps: Btw, is there ANY cited advantage to the GTS "burbbles" other than the sound effect!?

[VF-Engineering]

Originally Posted by BMW M4 PWR

According to your own dyno chart result you posted and linked in... you guys "STAGE 2 +" all out tune did 492 uncorrected on a 6mt where as the "STAGE 2 non-plus" tune did essentially the same number on 91oct* (489whp)

Link = http://f80.bimmerpost.com/forums/sho...67&postcount=3

The Stage TWO+ car you are referring to shows an improvement of 95 HP and 136 ft./lbs. of TQ to the wheels.

That is pretty significant increase in both HP and TQ, across a wide and usable RPM range, and is exactly in line with our advertised gains on the data sheet.

LINK: HEX Tuning BMW (F8X) Product Release Document

I don't see the Stage TWO dyno that you mentioned with 489 horsepower to the wheels, but if I could take a look at it, the focus would be on the delta (gains over stock) as opposed to the peak numbers. It is possible to have two cars that made similar peak numbers, but if the baseline/stock runs are different, then that would surely explain the similarities in peak numbers, while ultimately providing very different gains.

Originally Posted by BMW M4 PWR

...I/we would of expected to see over 500whp EASY if the tune was supposedly more aggressive and set to exploit 100oct fuel over 91oct... ?

For reference, a JB4 easily does over 500whp & 550+rwt on 100oct withOUT any other mods but the controller on map 7! Where as on its map 2 (and 93oct) it's in the 470's whp (on a good day)... point is, it exploits the octane difference between 93oct and 100oct well... it seems yours doesn't change much in peak power OR torque going from a more extreme 91oct fuel-to-100oct fuel (an even bigger delta...) ? Either your stage 2 and stage 2+ tunes aren't much different from each other in timing, afr and tuned map aggressiveness or something doesn't quite add up here? That's a BIG difference in fuel quality and it should reflect in the dyno numbers, simply put* No?

We don't typically compare our product directly to others as we feel that we have quite a few benefits that stand on their own.

It's obvious that we make make great power or we wouldn't even be a part of the conversation, but it's equally important to note that we focus on showing realistic numbers that are achievable, consistent, and repeatable by all of our customers.

We could easily produce marketing numbers that start with a "5", by creating custom tunes/maps that produce those numbers under exacting conditions, but that's not our style.

Each of our Stage Levels will provide noticeable incremental gains from one stage to the next when applied to the same vehicle. Each of our Stage Levels also produces those power gains consistently and repeatedly over multiple pulls/runs/laps and through multiple gears for those runs/laps just as they are expected to.

[VF-Engineering]

Originally Posted by BMW M4 PWR

"True dat..."🙌🙌😂

ps: Btw, is there ANY cited advantage to the GTS "burbbles" other than the sound effect!?

It's 90% acoustic, 10% performance.

The fuel injected on throttle overrun cools the exhaust valves and reduces carbon buildup, while the "burble" (the detonation of this fuel in the exhaust manifold before the turbo) maintains exhaust gas pressure for a specified duration of time while you are off throttle which assists in reducing lag between shifts.

[///M4RINE]

Do you guys have six yet

[BMW M4 PWR]

Yes they do but now they need a shop that could be a qualifying partner* (i.e. Be a vendor that's capable to do these flashes for them when they are gone...) What reputable BMW performance shops do we know in our area?

[all8up]

Originally Posted by BMW M4 PWR

Yes they do but now they need a shop that could be a qualifying partner* (i.e. Be a vendor that's capable to do these flashes for them when they are gone...) What reputable BMW performance shops do we know in our area?

I suggested www.machv.com/ to VF Engineering. Mach V has an in house dyno and currently a Cobb dealer.

[EALm4]

Originally Posted by BMW M4 PWR

Yes they do but now they need a shop that could be a qualifying partner* (i.e. Be a vendor that's capable to do these flashes for them when they are gone...) What reputable BMW performance shops do we know in our area?

Induktion?

Tech Tuning FS is pretty legit too

[BMW M4 PWR]

Originally Posted by EALm4

Induktion? Tech Tuning FS is pretty legit too

I think Tech Tuning FS is the MOST legit BMW specific tuning house in the DMV... they also have an in house dyno and regularly hold BMW CCA events. VF.. look into them...


Their website = http://www.tuningtechfs.com

[///M4RINE]

Originally Posted by BMW M4 PWR

I think Tech Tuning FS is the MOST legit BMW specific tuning house in the DMV... they also have an in house dyno and regularly hold BMW CCA events. VF.. look into them...


Their website = http://www.tuningtechfs.com

They may be in competition with each other though.

[EALm4]

Originally Posted by BMW M4 PWR

I think Tech Tuning FS is the MOST legit BMW specific tuning house in the DMV... they also have an in house dyno and regularly hold BMW CCA events. VF.. look into them...


Their website = http://www.tuningtechfs.com

That's where I plan dynoing whenever I feel like getting off my ass lol

[all8up]

I emailed VF with the two suggested shops. Standing by for their preference on shops and then we can start talking about a schedule.

[BMW M4 PWR]

Originally Posted by EALm4

That's where I plan dynoing whenever I feel like getting off my ass lol

Lmk when you do so we can go dyno together... on the same day 👍

[EALm4]

Originally Posted by BMW M4 PWR

Lmk when you do so we can go dyno together... on the same day ��

Are you still entertaining the VF tune?

I read the debacle some other user posted about his DME not being recognized either due to install error or flash. Thread looks to be deleted or merged but it pretty much confirmed all my fears that I previously mentioned.

[///M4RINE]

Originally Posted by EALm4

Are you still entertaining the VF tune?

I read the debacle some other user posted about his DME not being recognized either due to install error or flash. Thread looks to be deleted or merged but it pretty much confirmed all my fears that I previously mentioned.

You have a link to the thread? (if it's still around/merged)

[EALm4]

Originally Posted by ///M4RINE

You have a link to the thread? (if it's still around/merged)

http://f80.bimmerpost.com/forums/sho....php?t=1272815

Start at post 12.

cliffnotes: dude's shop flashed tune, reconnected DME, car wont start, 100 codes, determined DME connectors were switched, switched back, car started then died, tried to flash back to stock, failed, tried to reflash tune, failed at 51%, shop cant tell what's going on, sending car to BMW tomorrow, VF trying to do damage control.

So basically he's been out of a car for 24+ hours, may have to send the DME back to VF or the car is going back to BMW to figure out wtf is going on. I'm willing to point toward more around install/user error but still.

I wonder how BMW is going to be receptive about finding out the DME was removed and a tune was trying to be written on it.

I sure as fuck not getting this thing

[chillindrdude]

BMW receptiveness would be directly proportional to the amount of money you are bringing to the table for this colossal fuck up.

I share your cautiousness regarding bench flashing. I hope this doesn't get swept under the rug.

[cotmfk]

That sounds to me like a $6k problem all said and done. PAIN!!!

[all8up]

This is partially why I want the bench flash done at the time of ECU removal over sending it in. Particularly having the ECU experts on hand. The story from the other thread appears it was install related and not flash related.