[thejeremyman9]

Originally Posted by dalderks

Can someone take a quick look at my datalog? I was finally able to update to V7.1 after installing the VRSF CP and 5in intercooler (wanted to do this preventatively), but I wasn't able to run all the way to redline. I got a knock event early on and timing seems a bit rough. Anything else worth noting or suggestions? I'll try a different gas station and grab another log (I live in Washington state and I'm not sure if we're plagued by the same crappy quality fuel as the rest of the west coast). I'm new to this and appreciate any input.

https://www.bootmod3.net/log?id=5e89...729b33bc694c05

I have seen other users in WA state complain about poor fuel quality and have to run ACN maps, even running pump gas that says 92 at the pump. Are you running the 91 tune or what? It's also probably the winter blend, which is typically worse. Timing does not look very good as you mentioned.

How confident are you on a leak free install of the CP and IC? Your boost control looks a little strange; it takes a while to reach target, then you start to overboost, it pulls WGDC and you drop below again, which repeats. It might have even happened one more time if you went to 6k+ rpm. Also, your STFT are very negative. I dont think ive ever seen 20% fuel getting pulled like that before. To me those things suggest a leak after the MAF, hard to be certain though since you are actually able to reach boost target eventually.

[paimon.soror]

Anyone got thoughts on the two random knocks? Wondering if its just noise since one is low RPM and the 2nd is mid shift. Really cant believe how crappy the timing looks. Been trying to chalk it up to crap CT gas, but i get the same behavior with the 91 tune.

https://www.bootmod3.net/log?id=5e89...0b436a66a1a264

Running 93 octane with boostane. Sport+, Paddles., Stg2 and XHP Stg3. One step plugs at .024 (replaced them and coils with eldors about 200 miles ago)

Second pull, same spot, no knock

https://www.bootmod3.net/log?id=5e89...90c608068500f6

[F36GC_NYC]

Originally Posted by perryo91

Thank you man I was driving myself crazy... I sent in a ticket about it but they just recommended I do the 8AT transmission tune. I don't want to tune the trans just yet...

bm3 offers a trans tune?

or is that XHP?(i think i m spelling it correctly)

[thejeremyman9]

Originally Posted by F36GC_NYC

bm3 offers a trans tune?

or is that XHP?(i think i m spelling it correctly)

Yes, BM3 does. I think they still list it as beta, but it is available. Its generally regarded as not being as refined as XHP, but it should work to remove the torque limits.

[dalderks]

Originally Posted by thejeremyman9

I have seen other users in WA state complain about poor fuel quality and have to run ACN maps, even running pump gas that says 92 at the pump. Are you running the 91 tune or what? It's also probably the winter blend, which is typically worse. Timing does not look very good as you mentioned.

How confident are you on a leak free install of the CP and IC? Your boost control looks a little strange; it takes a while to reach target, then you start to overboost, it pulls WGDC and you drop below again, which repeats. It might have even happened one more time if you went to 6k+ rpm. Also, your STFT are very negative. I dont think ive ever seen 20% fuel getting pulled like that before. To me those things suggest a leak after the MAF, hard to be certain though since you are actually able to reach boost target eventually.

Thanks for the feedback! I am running the normal 91 tune with "92 octane" pump gas. I'm not 100% on the CP/intercooler install. I was pretty surprised when dry fitting the VRSF CP to intercooler (with stock o-ring) how lose the connection was (thought this might be normal tolerancing). I'm not sure what to make of the boost control either... I've been thinking about trying to do a boost leak test, but it looks like the access to the turbo inlet is non-trivial. Any suggestions? I'm assuming a boost leak would also impact the time?

[F36GC_NYC]

Originally Posted by thejeremyman9

Yes, BM3 does. I think they still list it as beta, but it is available. Its generally regarded as not being as refined as XHP, but it should work to remove the torque limits.

Thank you.

[thejeremyman9]

Originally Posted by dalderks

Thanks for the feedback! I am running the normal 91 tune with "92 octane" pump gas. I'm not 100% on the CP/intercooler install. I was pretty surprised when dry fitting the VRSF CP to intercooler (with stock o-ring) how lose the connection was (thought this might be normal tolerancing). I'm not sure what to make of the boost control either... I've been thinking about trying to do a boost leak test, but it looks like the access to the turbo inlet is non-trivial. Any suggestions? I'm assuming a boost leak would also impact the time?

If the connection was loose when you were test fitting it, you most likely have a leak. Trust me, i know from experience... See these two threads here and have a read:

https://f30.bimmerpost.com/forums/sh...als+for+charge

https://f30.bimmerpost.com/forums/sh...oost+leak+test

There needs to be some resistance when you install the CP onto the IC. If it just "falls" on and you can rattle/wiggle it back and forth easily even once it is all the way on and clipped, its probably not going to be air tight.

[designatedposter]

Originally Posted by paimon.soror

Anyone got thoughts on the two random knocks? Wondering if its just noise since one is low RPM and the 2nd is mid shift. Really cant believe how crappy the timing looks. Been trying to chalk it up to crap CT gas, but i get the same behavior with the 91 tune.

https://www.bootmod3.net/log?id=5e89...0b436a66a1a264

Running 93 octane with boostane. Sport+, Paddles., Stg2 and XHP Stg3. One step plugs at .024 (replaced them and coils with eldors about 200 miles ago)

Second pull, same spot, no knock

https://www.bootmod3.net/log?id=5e89...90c608068500f6

now that it's warmer here in CT, i am experiencing the same timing pulls and random knock events when running stage 2 91, and stage 2 acn91.

adding boostane hasn't helped as much as it did last season, so i'm guessing the gas quality is really bad right now and rising IAT is exposing it.

[nickf30n55]

I bought the car it came with a stage 1....... I got it for free I found it in there when I was doing maintenance called Dinan they told me to upgrade to stage 3 would be 100 bucks plus it is still under their warranty

[paimon.soror]

Originally Posted by designatedposter

now that it's warmer here in CT, i am experiencing the same timing pulls and random knock events when running stage 2 91, and stage 2 acn91.

adding boostane hasn't helped as much as it did last season, so i'm guessing the gas quality is really bad right now and rising IAT is exposing it.

Honestly just to test out the "bad gas" theory, i might go fill up half the tank with 260 GT (100octane at the pump - Windsor Sunoco). Its freaking 9.99 a gallon but its the only thing i can think of to really ensure that its really bad gas vs something super funky going on.

[thejeremyman9]

Originally Posted by paimon.soror

Honestly just to test out the "bad gas" theory, i might go fill up half the tank with 260 GT (100octane at the pump - Windsor Sunoco). Its freaking 9.99 a gallon but its the only thing i can think of to really ensure that its really bad gas vs something super funky going on.

Ive done this before to isolate knock/fueling issues on other cars. Just drive until you are just about out of gas and put in 5 gallons of 100 octane. No need to do half the tank unless you want to have some fun while you are at it. Even if you have a gallon of pump gas left 5 gallons of 100 will be enough to raise the octane.

[stlb5]

Originally Posted by thejeremyman9

Ive done this before to isolate knock/fueling issues on other cars. Just drive until you are just about out of gas and put in 5 gallons of 100 octane. No need to do half the tank unless you want to have some fun while you are at it. Even if you have a gallon of pump gas left 5 gallons of 100 will be enough to raise the octane.

What are the pros/cons to using 100 octane vs E85 to raise octane for this kind of test?

[thejeremyman9]

Originally Posted by stlb5

What are the pros/cons to using 100 octane vs E85 to raise octane for this kind of test?

100 octane will have basically the same energy density as pump gas. So, there are no fueling concerns.

E85 has roughly 30% less energy density than gasoline. You cant just add a bunch of E85 (without switching to an ethanol tune) because your fueling will be off. Yes, the DME will try to compensate with fuel trims, but you really dont want to do that beyond a few gallons of E85 to a full (remaming) tank of pump gas.

Bottom line you should do the test using 100 octane. If long term you want to start mixing E85 into pump gas to achieve higher octane, that is a separate conversation.

[stlb5]

Originally Posted by thejeremyman9

100 octane will have basically the same energy density as pump gas. So, there are no fueling concerns.

E85 has roughly 30% less energy density than gasoline. You cant just add a bunch of E85 (without switching to an ethanol tune) because your fueling will be off. Yes, the DME will try to compensate with fuel trims, but you really dont want to do that beyond a few gallons of E85 to a full (remaming) tank of pump gas.

Bottom line you should do the test using 100 octane. If long term you want to start mixing E85 into pump gas to achieve higher octane, that is a separate conversation.

Good stuff. Makes sense, thanks

[paimon.soror]

Originally Posted by thejeremyman9

Ive done this before to isolate knock/fueling issues on other cars. Just drive until you are just about out of gas and put in 5 gallons of 100 octane. No need to do half the tank unless you want to have some fun while you are at it. Even if you have a gallon of pump gas left 5 gallons of 100 will be enough to raise the octane.

Good call! Will have to give it a go this weekend.

Originally Posted by stlb5

What are the pros/cons to using 100 octane vs E85 to raise octane for this kind of test?

And in CT there is literally only one e85 station and it's about 5o miles away

[Insane435]

7.1 seems great overall. Much happier than 6.0. Have done 2 drives now. Ill have to log it in the coming days.

[nickf30n55]

Originally Posted by Phantom10R

should have spent that money on something that isnt over priced garbage and you wouldnt be in this situation. college or not...

I bought the car it came with it so garbage or not I got a free tune

[designatedposter]

Originally Posted by nickf30n55

I bought the car it came with it so garbage or not I got a free tune

If you're really only wanting bm3 to disable check engine light from a catless dp, I don't think it's worth it to install and risk your warranty coverage.

Just stick with your dinan software and reinstall original catalytic converter. If you want more exhaust note, you can install aftermarket exhaust or do resonator or muffler delete for cheap.

[HH1815]

how is version 7.0 treating you guys? Im still on 6.4, havent had the time to update, any weird issues or idling?

[designatedposter]

Originally Posted by HH1815

how is version 7.0 treating you guys? Im still on 6.4, havent had the time to update, any weird issues or idling?

7.1 has been out a while. Most are satisfied with 7.1. I never read of idling issues. Just don't delete your 6.4 tune if you want to revert

[HH1815]

Originally Posted by designatedposter

7.1 has been out a while. Most are satisfied with 7.1. I never read of idling issues. Just don't delete your 6.4 tune if you want to revert

Ohh great to know! Will share the log. Hopefully DE fuel is good enough.

[HH1815]

Been busy and haven't been able to share this yet (or even go on the forums) but man 7.1 feels refined almost stock. definitely feels better at lower rpm.

Anyone care to chime in?
2nd gear pull 2500-7k

https://www.bootmod3.net/log?id=5eb8...0b430ed5ce443f