[specka]

Originally Posted by MZWIE

With STAGE2 I do notice more throttle pedal lag (not turbo lag). What I mean is that the pedal can move quite a bit before feeling any revving.

Can this be adjusted via BM3.

I don't like the sound of this

[ronin1k]

Originally Posted by MZWIE

With STAGE2 I do notice more throttle pedal lag (not turbo lag). What I mean is that the pedal can move quite a bit before feeling any revving.

Can this be adjusted via BM3.

I don't run stage 2, but I have noticed exactly the same feeling once installed my Wagner cated downpipe, and it's very noticeable in Comfort mode

I'm damn sure it wasn't there before the dp install, I have been running VF stage 1 for quite a while prior to that

[Rock Sweden]

Originally Posted by Twt

In spite of "new" Wagner pitch from Mike, it throws CEL constantly.

THIS! I have the new Wagner as well and it throws a code within 5 minutes of clearing.

[Dabozo]

Originally Posted by specka

I don't like the sound of this

If this is a bm3 issue, it should be easy to correct no? Just throttle mapping...

[KevM2]

Originally Posted by DroneandDone

Actually, I'm glad to hear that because I have the same issue. I just don't want to invest any money into tuning if I'm going to risk my warranty for very minimal gain. I think if I had access to 93 gas I would have already gone with bm3. For now I'll keep living vicariously through you guys with the cojones to take the plunge

Does stage 2 BM3 absolutely need 93 octane?

[Insane_Dawe]

Originally Posted by KevM2

Does stage 2 BM3 absolutely need 93 octane?

Yes of course. Stage 2 gains are already limited by octane. If live in Arizona California Nevada use the ACN 91 otherwise stick to 91. Then log to see the quality of your gasoline.

[KevM2]

Originally Posted by Insane_Dawe

Yes of course. Stage 2 gains are already limited by octane. If live in Arizona California Nevada use the ACN 91 otherwise stick to 91. Then log to see the quality of your gasoline.

So I live in Canada and where I am, there is only octane 91, anything higher comes with ethanol and I don't want that. So what tune am I to get once I get a high flow sport cat dp and intercooler? Leave it in stock tune or Stage 1?

[gphung]

Originally Posted by KevM2

So I live in Canada and where I am, there is only octane 91, anything higher comes with ethanol and I don't want that. So what tune am I to get once I get a high flow sport cat dp and intercooler? Leave it in stock tune or Stage 1?

I have a similar dillema as I live in Toronto. I'm using Shell 91 which has zero ethanol, but I'm not actually sure if this is a big deal or if it's just a gimmick to be honest. Regardless, I was thinking once I get DP/FMIC/CP and maybe a DV, to maybe consider trying out the stage 2 91 ACN tune that's meant for lower quality gasoline.

[KevM2]

Originally Posted by gphung

I have a similar dillema as I live in Toronto. I'm using Shell 91 which has zero ethanol, but I'm not actually sure if this is a big deal or if it's just a gimmick to be honest. Regardless, I was thinking once I get DP/FMIC/CP and maybe a DV, to maybe consider trying out the stage 2 91 ACN tune that's meant for lower quality gasoline.

Is our Shell 91 here also ACN? I read somewhere Shell in Ontario had their own refinery in Sarnia... But as long as BM3 has an ACN 91 tune for stage 1 and 2, which I didn't know, then it should be okay I guess?

[gphung]

Originally Posted by KevM2

Is our Shell 91 here also ACN? I read somewhere Shell in Ontario had their own refinery in Sarnia... But as long as BM3 has an ACN 91 tune for stage 1 and 2, which I didn't know, then it should be okay I guess?

I've been under the impression that our gas is as bad as ACN, but I could be wrong as I don't know any specifics. But yeah there should be ACN maps to try out that might pull timing less.

I do know some folks on stage 2 93 using Petro Canada 94, and timing does get pulled. I don't have logs to back that up, though.

[Dasnub]

Originally Posted by chris719

Do you have any experience with flash tunes and the 6MT post-shift lag or interruption that people talk about? Can that be helped with a tune?

As of today this has been addressed/fixed.

https://f87.bimmerpost.com/forums/showthread.php?p=27144146#post27144146