[Bash]

Looking at the map stage 1+ sport runs the same load as stage 2 agg (no FMIC)
However stage 2 runs more timing.

[Jeffman]

My but Dyno tells me that Stage1+ Agg is extremely noticeably much more powerful than Stage 1. My logs show higher boosts for longer periods into the higher RPMS with Stage 1+. Makes sense in view of everything said in this thread so far, I.e., lower IATs, etc.

[nitehawk]

I had a chance to try out the new S2+a v402 maps on 94 octane yesterday Subjectively, it feels very very smooth, even at part throttle.

Attached are some datalogs. The only thing peculiar I noticed is in my 4th gear pull; my timing suddenly fell to zero momentarily. However, the timing correction parameter was always showing zero. Otherwise, I think everything else looks good...

[Glowin]

Originally Posted by sdstatestud88

Thanks guys...taking out my KN Filter and installing some DCIs then seeing if 4.02 Stage 2 + FMIC lives up to the hype...Im sure it will

How come? Do DCI's flow that much better than a K&N? I thought as far as Cobb is concerned, they're the same for running Stage 2+?

In their Stage 2 thread, they say 2+

• Requires Upgraded intake system (DCI, panel filter or otherwise)

so they lump them all together as equals.

[sdstatestud88]

There isnt a big difference at all...But I had them laing around so I thought why not..I will probably do the helix style air box and eventually put it back in

[enrita]

A DCI will flow better than panel filter, that for sure.

[Kalimanjb]

I do not see 4.02 for I752S Stage 1

[phazen23]

Originally Posted by Kalimanjb

I do not see 4.02 for I752S Stage 1

Only Stage1+FMIC, Stage2+FMIC were updated. The stated reason was that these were the only maps that suffer from boost oscillation issues.

[Glowin]

Originally Posted by enrita

A DCI will flow better than panel filter, that for sure.

Between the two though, if you're going to track the car, I assume you'd recommend the panel filter route, so you're getting cooler air, rather than DCI's in the open, hot engine bay?

[enrita]

Originally Posted by Glowin

Between the two though, if you're going to track the car, I assume you'd recommend the panel filter route, so you're getting cooler air, rather than DCI's in the open, hot engine bay?

this has been discussed plenty of times. i still would go for an open filter solution, maybe CAI or even better the MR.5 solution. I have Injen and IAT never goes over 40-42C with Helix intercooler.

[Glowin]

Originally Posted by enrita

this has been discussed plenty of times. i still would go for an open filter solution, maybe CAI or even better the MR.5 solution. I have Injen and IAT never goes over 40-42C with Helix intercooler.

Sorry about that... I've only recently decided to upgrade the intake, so hadn't had time to research it much yet. My statement above was based on reading a few posts here and there and talking to some other members, hence why I didn't go the DCI route when upgrading, as it seemed logical that under sustained heat during tracking, you wouldn't want to suck in hot air all the time and the benefits of the extra flow over a K&N would be outweighed by the hotter air sucked in.

I'm not concerned about squeezing another 5 HP out of my setup. I just don't want to do something detrimental to the engine/turbos when tracking, which it sounds like from the advice I got a few days ago in the main Cobb thread, at least shouldn't be the case (running a K&N when tracking the car).

Another member said "Keep an eye on WGDC just to be sure the turbos are working themselves too hard with the stock air box." Though I was hoping I could rely on the testing and experience of others who track their cars (including Cobb's) and not have to check that...

And to add to my dilemma of choices, I've read so much of people saying plain $100 DCI's are just as good as the Injen in performance, I didn't know what to get!

[plarkin]

4.02 maps running great! In fact, it seems to have completely eliminated the half-engine issues I was getting with 3.01. Numerous pulls yesterday in all sorts of conditions without a single issue. Silky smooth and my car is happy.

My only issue is one that still persists after installing Cobb; I have an issue keeping the change in my pockets when I step on the gas.

[markk132]

i'm currently running v301 stage 1, my car is completely stock. is there a big different if i jump to the v401 beta map? my car currently runs fine with no problems on v301, but if there's a significant amount of power to be had by jumping up to v401, then i'll take the risk of running a beta map and try it out.. any input would be appreciated

[BMWsky]

Originally Posted by markk132

i'm currently running v301 stage 1, my car is completely stock. is there a big different if i jump to the v401 beta map? my car currently runs fine with no problems on v301, but if there's a significant amount of power to be had by jumping up to v401, then i'll take the risk of running a beta map and try it out.. any input would be appreciated

There shouldn't be any difference in power between any of the versions, just a difference in the delivery of it.

[JStang]

Originally Posted by plarkin

4.02 maps running great! In fact, it seems to have completely eliminated the half-engine issues I was getting with 3.01. Numerous pulls yesterday in all sorts of conditions without a single issue. Silky smooth and my car is happy.

My only issue is one that still persists after installing Cobb; I have an issue keeping the change in my pockets when I step on the gas.

Glad to hear that these maps have made a big difference for another Cobb owner!!

[TOS_335i]

Nice job COBB! Just ran the Stage 2+ linear on some back roads, and it was awesome! Smooth... smooth... smooth...

I jumped from 3.01 to 4.02... Never did try the 4.01 maps, but I'm very pleased

[nitehawk]

Here is another log: 3-4 Gear Pull. Everything looks good. Timing reaches 9˚ at ~6300 RPM. No corrections. Boost and WGDC are clean as ever at the onset of WOT. My IAT's really climb in 4th gear though, even with an upgraded 5" FMIC.

[cstavaru]

A question, is this fix also available for the RB Turbo maps ? Or maybe the RB Turbo maps do not have this problem ?

[enrita]

Its a global fix , works great on my tds stage 2

[cstavaru]

Originally Posted by enrita

Its a global fix , works great on my tds stage 2

Thanks for the answer. So, can it be concluded that this firmware is problem-free for upgraded turbos ? I am interested because there is someone selling a used set of upgraded turbos in my area...

[enrita]

I tested the ots map and my car was running as smooth as it did with giac on stock turbos. Also tried a race map from PTF for meth and result was even better so yes you can relax.

[pogiboi]

So are the 4.02 beta maps only for the stg 1+ maps? Are they not available for the normal stg 1?