[g20beam]

I am aware there is no such thing right now, but I'm curious if the non-hybrid M340i xHP flash could also work for the 2019 330i, considering both cars share the same transmission (ZF8HP51).

Regardless, I'm wondering why it's taking so long..

The 330i has been out at least half a year longer than the M340i, considering the more affordable value, there should be way more 330i owners, therefore more people that would want to purchase this product.

Anyone know the answer? I've emailed them twice, and both times they never provide me with a good answer, just that "It's on the way" or "There is currently no support for this model"

I need this bad, been waiting 3 years now

[VipinLJ]

Probably because most people who want performance get the M340i and then tune that. The 330i isn't popular in NA when it comes to tuning because of the B46. In Europe and Asia, there are probably significantly more tuned G20 B48s. But I think xHP is based in NA? Probably why they aren't so invested in the B46.

[g20beam]

Originally Posted by VipinLJ

Probably because most people who want performance get the M340i and then tune that. The 330i isn't popular in NA when it comes to tuning because of the B46. In Europe and Asia, there are probably significantly more tuned G20 B48s. But I think xHP is based in NA? Probably why they aren't so invested in the B46.

They're based in the EU which is why I'm surprised, and plus it's the same transmission, just different engine, so I'm pretty curious why it came out for one car and not the other as of yet.

Dying for this, hopefully someone from xHP finds this and decides it's a good idea LOL

[VipinLJ]

Originally Posted by g20beam

They're based in the EU which is why I'm surprised, and plus it's the same transmission, just different engine, so I'm pretty curious why it came out for one car and not the other as of yet.

Dying for this, hopefully someone from xHP finds this and decides it's a good idea LOL

Yup. I thought it would be compatible too for the same reason you mentioned but us B46 owners are treated like the step child here

I guess we'll have to patiently wait for them to release the tune for us pleb B46 owners.

[1WickedE90]

https://missiontuning.com/bmw-engine...lash-tune.html

https://missiontuning.com/bmw-transm...lash-tune.html

Mission Performance has a transmission flash for B58 motor. In addition to their G20 B58 engine flash tune, they are in development for B46 motor. I wouldn't be surprised if they followed up with the accompanying transmission tune as well.

MissionPerformance any comment on the development?

[VipinLJ]

I won't be holding my breath on MP launching a tune for the B46. In NA, the B58 is by far the more popular engine. So yeah.

[leoffyddd]

Yep, the wait never ends. I have also been waiting for them to release the support for G20 330i for a very long time but every time just let downs after a bit of excitement when seeing their progress toward the 8HP51 box.
I am extremely curious to see how much of an improvement the tranny tune can offer and hopefully get better personal acceleration records.

[xnick101]

Has anyone tried messaging them? If they get enough demand they will do it. They don't want to spend time on something where it won't yield them results aka money

[1WickedE90]

Originally Posted by xnick101

Has anyone tried messaging them? If they get enough demand they will do it. They don't want to spend time on something where it won't yield them results aka money

https://g20.bimmerpost.com/forums/sh...3&postcount=19

[VipinLJ]

Originally Posted by 1WickedE90

https://g20.bimmerpost.com/forums/sh...3&postcount=19

I really hope it is sometime soon!

[Sextus]

I just got a JB4 installed on my 330i

I don't know much about MP? I used to have a 435i years ago and only ever used Bootmod3.

seems exciting nonetheless that we *may* be close to another option to tune the B46

[ztech]

Originally Posted by VipinLJ

I really hope it is sometime soon!

Looks like they just released it for the G20 330i

https://shop.rbttuning.com/products/...42740852654304

[VipinLJ]

Originally Posted by ztech

Looks like they just released it for the G20 330i

https://shop.rbttuning.com/products/...42740852654304

Yup. It's been out for a couple of weeks now. Waiting on impressions from other users before I pull the trigger.

[ztech]

Originally Posted by VipinLJ

Yup. It's been out for a couple of weeks now. Waiting on impressions from other users before I pull the trigger.

One reason I was skeptical is that the 8hp50 has a fairly healthy limit of 500nm (368lbft), and typical stage 1/stage 2 tunes will not exceed that, if by much (although My Navardi E85 custom tune is ~531nm (396 lbft)). However, the per gear torque limits are different, and the 8hp50 has it's lowest limits in 3rd and 6th gear - and xhp will remove those torque limits in all gears. Shifts will be quicker, and when there are 3 gears to 60 MPH, saving just a tenth or two, each gear adds up. There is also the option to increase 'line pressure' by up to 15%. Finally, there is the option to increase brake boost pressure, increasing boost by up to 15%, which should help launches off the line (even mini-launches).

While all of this could theoretically help performance, the only positive feedback I've gotten is from a couple F30 330i owners, who said that xHp shaved .5-.7 seconds from their 0-60 times (Imagine your G20 in the low 4s!).

Getting the xHp adapter today, so I'll tell you how it goes.

[ztech]

So on lunch break, I had a chance to flash it - went straight to stage 3 - and it definitely makes a difference . I only had like 15 minutes with it, but the bump in torque/power is immediately noticeable, even at residential speeds. Mild-to-moderate, throttle application off the line, feels so much better - exactly what my 310whp/380 tq tuned car seemed to lack - the car feels like it's laying down like ~20-30 more whp, from what is especially apparent in low gears 1-3. Didn't rev it out at high speeds, but I tried a mini-launch, and noted shift-speeds are much improved - maybe half of stock. It's not just adding torque - but the car actually moves quicker - it feels like it matches better with the car's hp. What I really like is the particularly noticeable, surgeiness of power, as your accelerating and approaching gear shifts, that was missing with stock TCU tune, as if its setting you up for the next shift. Best way to summarize this tune -it feels like 1psi-2psi extra boost between 1k-3k rpm (haven't tested higher rpm yet). It's also not just quicker, but it feels smooth (and I'm on the most aggressive stage). And there is still room to soften up the gear shifts, and other options through custom settings, if you prefer something more docile.

I have a hunch that most ECU tuners don't like to bend engine torque calculations to override TCU limitations, as that would create too many liability issues, in the long run. Although the 8hp50 is 'limited' to 369lbft, from what I'm understanding, there are in gear limits, that can inhibit acceleration performance, and xHP removes those limits.

Keep in mind my results are on a Navardi custom tuned, E85 car. Hope this helps.

[kfer]

Interesting what you write, but I never understood that with the torque limitations. Could you explain me please what you exactly mean ?
I currently have 660Nm on my ZF 8HP51 without any problems. There are thousands of tuned Supras with over 800Nm and there is no question of limitation.
I'm doing a turbo upgrade and asked the tuner specifically about XHP. The answer: he can recommend it, but it is not necessary to drive with 750-800Nm.

[ztech]

Originally Posted by kfer

Interesting what you write, but I never understood that with the torque limitations. Could you explain me please what you exactly mean ?
I currently have 660Nm on my ZF 8HP51 without any problems. There are thousands of tuned Supras with over 800Nm and there is no question of limitation.
I'm doing a turbo upgrade and asked the tuner specifically about XHP. The answer: he can recommend it, but it is not necessary to drive with 750-800Nm.

From what I read, some ECU tuners send false data to the TCU, so the override the TCUs set torque limits Apparently, this can work without a proper TCU tune, in the short run, but supposedly it can cause issues in the long run. That being said, I'm sure each transmission is different, in terms of it's limits and ability to handle extra torque, without a proper tune to help account for it. Not sure how much of all this is sales propaganda, but here is a article that I encountered that talks about it.
https://www.xhpflashtool.com/blog/li...engine_torque/

[ztech]

Drove it out on the open road/highways and it's feeling great at high speed. Confirmed on butt dyno that xHp has really does deliver more power/torque at all speeds. I'm still loving it!

[VipinLJ]

ztech

That sounds fantastic. I've been wanting to see some dragy numbers (ideally, a before and after xhp) but unfortunately, those who have the tune don't seem to have a dragy, or access to roads that are empty to get some numbers.

From your experience, and the experience of others, it definitely sounds worth it. I remember watching a keis video saying it improves times by 0.3-0.7s. That definitely will be crazy. If it brings my times down to 12.5s, I'd consider it worth it.

[ztech]

Originally Posted by VipinLJ

ztech

That sounds fantastic. I've been wanting to see some dragy numbers (ideally, a before and after xhp) but unfortunately, those who have the tune don't seem to have a dragy, or access to roads that are empty to get some numbers.

From your experience, and the experience of others, it definitely sounds worth it. I remember watching a keis video saying it improves times by 0.3-0.7s. That definitely will be crazy. If it brings my times down to 12.5s, I'd consider it worth it.

Don't know if you've seen this video of F30 330i posting 12.34 @ 110.89MPH and 4.01 second 0-60MPH. Nothing crazy with mods (B58TU High Pressure Fuel Pump is not needed for our G20s), aside from stripping out seats. You figure they weigh around 150 pounds, so maybe ~4.2s with the seats. G20 should be right around there, but thats an E85 tune, a 93 tune would lose ~15hp, so your up to 4.3-4.4s. Of course, this is in xhp "Drag Mode", which as it's title suggests, is not intended for daily use. But the tune improves power and responsiveness at any speed. It really is the best tune I've bought for my G20.


Mods:
MST Cold Air Intake
VRSF Catless Downpipe
FTP Small Intake Pipe
B58TU HPFP
Custom E85 Tune by Navardi
XHP Drag Mode
Passenger Seats Removed
Nitto NT555r2 275/40r17

[VipinLJ]

Originally Posted by ztech

Don't know if you've seen this video of F30 330i posting 12.34 @ 110.89MPH and 4.01 second 0-60MPH. Nothing crazy with mods (B58TU High Pressure Fuel Pump is not needed for our G20s), aside from stripping out seats. You figure they weigh around 150 pounds, so maybe ~4.2s with the seats. G20 should be right around there, but thats an E85 tune, a 93 tune would lose ~15hp, so your up to 4.3-4.4s. Of course, this is in xhp "Drag Mode", which as it's title suggests, is not intended for daily use. But the tune improves power and responsiveness at any speed. It really is the best tune I've bought for my G20.


Mods:
MST Cold Air Intake
VRSF Catless Downpipe
FTP Small Intake Pipe
B58TU HPFP
Custom E85 Tune by Navardi
XHP Drag Mode
Passenger Seats Removed
Nitto NT555r2 275/40r17

Yes the owner of that F30 is in our Whatsapp group We also have, IMHO, one of the world's fastest, if not the fastest, G20 330i owner in our group as well. He doesn't have the xhp tune though.
There are also a couple of other G20 330i owners who have the xhp tune but unfortunately, they don't have access to roads to get dragy numbers.
My best time has been 12.8xs. But on an average, I've been getting a consistent 12.9s quarter mile. With xhp (not in drag race mode), if I can get it down to 12.7s, I consider it a win. Still holding off for a bit just to see if anyone posts some dragy numbers. That, and once winter eases up, I'll be getting it. I've read good things about it and can't wait to try it out for myself.

[njfoses]

I am running stage 3 as well. In sport mode you can definitely notice the faster and harder shifts. Have also noticed the shift points are lower in sport mode which i may end up adjusting.