[CosmosMpower]

Originally Posted by FSociety

+1

Bootmod3 already has M2 C customers running
- OTS Maps
- Full E85 Custom Tune
- new map switches are 30 seconds
- new unlock + flash (first time) is 3minutes 30seconds

Just keeps getting better!

I haven't followed S55 tuning in a while but last I checked you couldn't even run too high of a E85 mix due to running out of fuel pump capacity. I remember reading some cars can't even run E30 or E40 mix without throwing a CEL.

Now you can run 100% E85 in a F8x S55 tune on stock fuel pump?

[ICantDrive4Sht]

Originally Posted by CosmosMpower

I haven't followed S55 tuning in a while but last I checked you couldn't even run too high of a E85 mix due to running out of fuel pump capacity. I remember reading some cars can't even run E30 or E40 mix without throwing a CEL.

Now you can run 100% E85 in a F8x S55 tune on stock fuel pump?

Yes, you can.

[hellrotm]

Originally Posted by CosmosMpower

I haven't followed S55 tuning in a while but last I checked you couldn't even run too high of a E85 mix due to running out of fuel pump capacity. I remember reading some cars can't even run E30 or E40 mix without throwing a CEL.

Now you can run 100% E85 in a F8x S55 tune on stock fuel pump?

Yup, full E85 tunes have been available for awhile for M3/M4. In fact a member with his M2C is running 100% E85.

[tom @ eas]

Originally Posted by FSociety

+1

Bootmod3 already has M2 C customers running
- OTS Maps
- Full E85 Custom Tune
- new map switches are 30 seconds
- new unlock + flash (first time) is 3minutes 30seconds

Just keeps getting better!

and no VIN-locked flash cables.

[CosmosMpower]

Originally Posted by hellrotm

Yup, full E85 tunes have been available for awhile for M3/M4. In fact a member with his M2C is running 100% E85.

Wow, what changed with the fuel pump limitation to allow that? What kind of power does full E85 make? I remember JB4 was making 530 RWHP on a dynojet with nothing but their E30 piggyback tune.

[M-Pilot]

Originally Posted by CosmosMpower

Wow, what changed with the fuel pump limitation to allow that? What kind of power does full E85 make? I remember JB4 was making 530 RWHP on a dynojet with nothing but their E30 piggyback tune.

You cannot run full E85 on the stock tune but you can on a custom E85 tune. AFAIK, stock ZCP tune from factory allows up to 5-6 gallons of E85 per tank (this limit is slightly less for Non-ZCP) but you need to get there gradually (i.e. start with 1-2 gallons and go up incrementally with every fill up). I'm no tuning expert but I read Carry's posts out of curiosity in the past couple years. So that being said, you need a custom flash tune to be able to run full E85 on S55 and there are ton of people running full E85.

[FSociety]

Originally Posted by CosmosMpower

I haven't followed S55 tuning in a while but last I checked you couldn't even run too high of a E85 mix due to running out of fuel pump capacity. I remember reading some cars can't even run E30 or E40 mix without throwing a CEL.

Now you can run 100% E85 in a F8x S55 tune on stock fuel pump?

Those were lies (typical) of BMS/JB4 when they couldn't do it. Then Cary "Custom Tuner" in the Bootmod3 platform found how to run not E30 but Full E85. Then Paul "another custom tuner" found the trick. It's all up to how much time you can invest in tuning and testing.
PTF / bm3 is the first platform ever to fully support E30 flash maps and Full E85 tuned in stock fueling in the world.
Others are attempting to do it but I saw they're only able to run E70 at the moment.

Originally Posted by cntzl

You cannot run full E85 on the stock tune but you can on a custom E85 tune. AFAIK, stock ZCP tune from factory allows up to 5-6 gallons of E85 per tank (this limit is slightly less for Non-ZCP) but you need to get there gradually (i.e. start with 1-2 gallons and go up incrementally with every fill up). I'm no tuning expert but I read Carry's posts out of curiosity in the past couple years. So that being said, you need a custom flash tune to be able to run full E85 on S55 and there are ton of people running full E85.

+1

[hellrotm]

Originally Posted by CosmosMpower

Wow, what changed with the fuel pump limitation to allow that? What kind of power does full E85 make? I remember JB4 was making 530 RWHP on a dynojet with nothing but their E30 piggyback tune.

A year ago...stock turbos, stock fuel system.

552whp/575wtq

https://f80.bimmerpost.com/forums/sh....php?t=1432148

560whp/576wtq

https://f80.bimmerpost.com/forums/sh....php?t=1444698

[Commanderwiggin]

So which tuner is better...Cary or Paul...

[FSociety]

Originally Posted by Commanderwiggin

So which tuner is better...Cary or Paul...

Both are great, really depends on the individual needs and who they feel is best for them. Shoot both an email and start from there!

[Bimmer28312]

Anything new from bpm for our competition?? Seems they are the only ones able to tune 2020 m2c

[2014BMWM3Texas]

Sorry for late reply but I worked with Steve Dinan direct, they used my M2C as R&D. As many of you noted, the S55 tune is very similar to the M3 CS but slightly different. Carbahn started with M3 CS then adapted to the M2C, more difference than you would think. Result is insanity. 553 hp and 560 ft lb torque. I've been learning to tame the beast. If you want a time, send it.

[rjtoudouze]

Originally Posted by willjrobertson

Sorry for late reply but I worked with Steve Dinan direct, they used my M2C as R&D. As many of you noted, the S55 tune is very similar to the M3 CS but slightly different. Carbahn started with M3 CS then adapted to the M2C, more difference than you would think. Result is insanity. 553 hp and 560 ft lb torque. I've been learning to tame the beast. If you want a time, send it.

We need a group buy discount

[Bimmer28312]

Originally Posted by rjtoudouze

We need a group buy discount

What's the cost run on this tune?

[rjtoudouze]

Originally Posted by Bimmer28312

What's the cost run on this tune?

When I contacted them a few months back $750 for the tune, $250ish for the tablet, $100 for startup and burbles and $750 for a matching warranty. When they launched this tune for the M3 and M4 there was a 20% discount for that group. I'd buy if that was offered. I also think they would get more people from here to buy their tune. It is quite impressive compared to some others based on the dyno results.

[Betaone]

In Northern Italy it is very renowned and appreciated Biesse Racing tuner. Very competent on S55 engines. On cars like mine with ISTEP version with locked OBD, they can connect directly to the control unit without disassembling the intercooler and loading their map. The maximum driving torque is deliberately limited to 62 kgm so as not to compromise too much traction. The power achieved is very good: 518 hp eliminating OPF of the European version and using 100 RON petrol. The power remains on the 500 hp even 7,500 rpm.
I am very satisfied. Auto is fun and very manageable.

[steve457]

Originally Posted by willjrobertson

Sorry for late reply but I worked with Steve Dinan direct, they used my M2C as R&D. As many of you noted, the S55 tune is very similar to the M3 CS but slightly different. Carbahn started with M3 CS then adapted to the M2C, more difference than you would think. Result is insanity. 553 hp and 560 ft lb torque. I've been learning to tame the beast. If you want a time, send it.

Is the tune on your car the same as the one on the M2C that BMWCCA is offering in the raffle? How is the driveability of the tune at partial throttle applications? Any hesitation at all at different loads or RPMs? Is the smoothness the same as the factory tune?

I'm considering a tune, but don't want to lose the factory smoothness or have issues with jerky/rough throttle response.

[m20e3087]

Originally Posted by steve457

Is the tune on your car the same as the one on the M2C that BMWCCA is offering in the raffle? How is the driveability of the tune at partial throttle applications? Any hesitation at all at different loads or RPMs? Is the smoothness the same as the factory tune?

I'm considering a tune, but don't want to lose the factory smoothness or have issues with jerky/rough throttle response.

IMO start with BM3 stage 0 (CS), and move to stage 1. Both tunes offer factory like smoothness, if not even better than factory.

[Thescout13]

Originally Posted by steve457

Is the tune on your car the same as the one on the M2C that BMWCCA is offering in the raffle? How is the driveability of the tune at partial throttle applications? Any hesitation at all at different loads or RPMs? Is the smoothness the same as the factory tune?

I'm considering a tune, but don't want to lose the factory smoothness or have issues with jerky/rough throttle response.

It wouldn't be, because the one in the raffle is from the company Dinan, which Steve Dinan hasn't been a part of for a few years now since selling. He is referring to Steve's new company - Carbahn.

[FSociety]

Originally Posted by m20e3087

IMO start with BM3 stage 0 (CS), and move to stage 1. Both tunes offer factory like smoothness, if not even better than factory.

+1

CS+ is my favorite, its BM3 own version and they gave it for free

[Hank Scorpio]

Originally Posted by M-Pilot

You can run 295s on 10" wheel without any problems. That's what many M3/M4 owners are doing. I was running 265/30/20 and 295/30/20 on my M4 (stock 666M wheels) and 295s felt better even after 285s (considering it's only a 10mm increase). Check out @m3piotr on IG. He's running 265/30/20 and 295/30/20 on his OG M2. He even lowered it couple days ago and still no rubbing. I'll do 265/30/19 and 295/30/19 on mine as the diameter change is minimal with this setup. If you still don't feel comfortable and want to get 275s for the rear, get ready for a lot of wheel spin with a stage 1 tune

Can I use 265/35/19 tires in the front and 295/35/19 tires in the rear with OEM wheels on the s55 M2?

As summer is ending soon in the Northeast, I need to replace my rear Michelin Alpine 4a's. What would be the recommended tire size for the rear?

I plan to tune to BM3 Stage 1 (possibly starting with the M4 GTS Map) but have no immediate plans to go to Stage 2.

[Hank Scorpio]

Originally Posted by m20e3087

IMO start with BM3 stage 0 (CS), and move to stage 1. Both tunes offer factory like smoothness, if not even better than factory.

Any reason why you didn't mention the M4 GTS map? Apologies if it's the same map you mentioned.