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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Stage 2 Sneak Peak



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      09-13-2011, 01:54 PM   #89
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Quote:
Originally Posted by Willizm View Post
Wonder how stage 2 without meth will compare to a piggyback running meth. That will be very interesting to see. I'll take off my meth to try this flash again. The ap is just sitting there in it's pretty metallic blue box.
Stage 2 still has preset ignition and wouldnt be maximizing all benefits of meth.

Stage 3 might be a different story or their race maps.

I forgot boost isnt accurate past 5K on these logs.

Last edited by Jeff@TopGearSolutions; 09-14-2011 at 12:39 AM..
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      09-13-2011, 02:02 PM   #90
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Quote:
Originally Posted by jippii ensio View Post
I think he means that the power does not drop much towards the redline.

However, this is just great, as the power is not due to too high boost, but the timing advance.

It would be problematic if the power at high RPM would be a result of boost which would just heat things up and it would thus not be consistent over a longer period.
This is what I was thinking..of primary concern would be saftey of the tune at high power levels..especially on pump. hopefully COBB has factored this into their testing, which I am sure they have and will before final release.
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      09-13-2011, 02:10 PM   #91
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Quote:
Originally Posted by tibra1 View Post
This is what I was thinking..of primary concern would be saftey of the tune at high power levels..especially on pump. hopefully COBB has factored this into their testing, which I am sure they have and will before final release.
When I get my hands on Cobb stage 2 care for a friendly run? Cobb stage 2 Vs GIAC stage 2

Both on 93 pump of course.
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      09-13-2011, 02:21 PM   #92
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Quote:
Originally Posted by themyst View Post
When I get my hands on Cobb stage 2 care for a friendly run? Cobb stage 2 Vs GIAC stage 2

Both on 93 pump of course.
Well from these numbers I think your gonna have the leg up on me on pump..

COBB seems to be living up to its promises for sure.
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      09-13-2011, 02:59 PM   #93
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Quote:
Originally Posted by tibra1 View Post
Well from these numbers I think your gonna have the leg up on me on pump..

COBB seems to be living up to its promises for sure.
Yes but the YouTube community doesn't have a GIAC Vs Cobb video
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      09-13-2011, 02:59 PM   #94
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FWIW jeff@topgear, I have a stg3 alpha map set to 190 load to redline that's about 19-20psi
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      09-13-2011, 03:09 PM   #95
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Quote:
Originally Posted by dzenno View Post
FWIW jeff@topgear, I have a stg3 alpha map set to 190 load to redline that's about 19-20psi
yea buddy, the end is near.
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      09-13-2011, 03:17 PM   #96
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Quote:
Originally Posted by Clap135 View Post
yea buddy, the end is near.
did you say doomsday maps? lol

nah, i really think piggies still have quite a bit of life in them especially until ATR is released...for example you could use cobb to flash the timing and AFR curves to your liking and then use a piggy to up boost progressively when meth is flowing as detected with a flowsensor, hint hint ...obviously until Cobb figures out how to tie in progressive meth as well but by that time they'll be so deep into the DME with programming that all other tuning options will become just a bunch of lines of code and send it out for beta..
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      09-13-2011, 03:26 PM   #97
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Quote:
Originally Posted by dzenno View Post
did you say doomsday maps? lol

nah, i really think piggies still have quite a bit of life in them especially until ATR is released...for example you could use cobb to flash the timing and AFR curves to your liking and then use a piggy to up boost progressively when meth is flowing as detected with a flowsensor, hint hint ...obviously until Cobb figures out how to tie in progressive meth as well but by that time they'll be so deep into the DME with programming that all other tuning options will become just a bunch of lines of code and send it out for beta..
Id buy a BMS methanol failsafe catered to flash tunes. If there's demand for it, I bet Terry can easily come up with something.

Then again a bypass solenoid will work just as well.
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      09-13-2011, 03:28 PM   #98
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Quote:
Originally Posted by dzenno View Post
did you say doomsday maps? lol

nah, i really think piggies still have quite a bit of life in them especially until ATR is released...for example you could use cobb to flash the timing and AFR curves to your liking and then use a piggy to up boost progressively when meth is flowing as detected with a flowsensor, hint hint ...obviously until Cobb figures out how to tie in progressive meth as well but by that time they'll be so deep into the DME with programming that all other tuning options will become just a bunch of lines of code and send it out for beta..
Personally my meth map, if it fails won't grenade the motor on pump. When going all out it will be more aggressive but it will also be on race gas. So this meth advantage piggys have means nothing to me.

I have been using meth for probably 50k on this car. Never had a failsafe that worked longer then 1-2k combined.
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      09-13-2011, 03:39 PM   #99
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Quote:
Originally Posted by themyst View Post
Quote:
Originally Posted by tibra1 View Post
This is what I was thinking..of primary concern would be saftey of the tune at high power levels..especially on pump. hopefully COBB has factored this into their testing, which I am sure they have and will before final release.
When I get my hands on Cobb stage 2 care for a friendly run? Cobb stage 2 Vs GIAC stage 2

Both on 93 pump of course.
Yes please, I am switching my Peocede for a Flash soon so I'll be waiting impatiently for that video!
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      09-13-2011, 03:41 PM   #100
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Quote:
Originally Posted by dzenno View Post
FWIW jeff@topgear, I have a stg3 alpha map set to 190 load to redline that's about 19-20psi
Well then color me impressed.
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      09-13-2011, 03:56 PM   #101
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Quote:
Originally Posted by Clap135 View Post
Personally my meth map, if it fails won't grenade the motor on pump. When going all out it will be more aggressive but it will also be on race gas. So this meth advantage piggys have means nothing to me.

I have been using meth for probably 50k on this car. Never had a failsafe that worked longer then 1-2k combined.
I haven't had any issues with my coolingmist failsafe in about 50k on this car since I've put it on...the only times I "thought" I had issues is when I wasn't priming the system after filling up again once I ran the system dry...the failsafe always reported properly but I often times blamed it falsely for inaccuracy when it was actually me that was wrong and there was air in the line before the pump and flow was indeed lower than expected...but that's another story and we'll just leave flow sensors that work to another thread...mine may just be "very" special lol

In terms of tune with and without meth running I'm of the thought that I'd like to run on both maps MAXED OUT to their fullest potential without knock...with a flash I can run a timing curve optimized for pump gas with say high 11s AFR...on meth, when its flowing, speaking "ideally" I'd like the boost and timing to go up to their highest level that I know won't have much knock (found during road testing) while leaning out AFR ever so slightly (0.2-0.5 points)...now realistically speaking what we can expect to have easily is maxed out timing and boost with a given AFR curve setup for pump gas (e.g. stage 2 map from Cobb) and then have a boost/meth controller wired in with a meth failsafe that'll raise boost across the board according to some "configurable" settings (like jb4's map6 say) maxing it out for pump+meth...race gas/meth map (which is very rare in my situation) would be separate flash with a different more aggressive "base" map made for race gas slightly upped even further from there due to the sole advantage of lower IATs and higher boost when on meth with its own timing/AFR/boost, applied only when at a track event...
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      09-13-2011, 04:15 PM   #102
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      09-13-2011, 04:17 PM   #103
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      09-13-2011, 04:24 PM   #104
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looking good clap! that music on the other hand.......
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      09-13-2011, 04:33 PM   #105
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Can any 6AT stage 2 beta testers step up and post some logs? I want to see if the timing flatline present on piggybacks is present on the flash.

If none exist, sign me up. I'll go drive to Mexico and wind it out deep into 5th gear.
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      09-13-2011, 04:49 PM   #106
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Quote:
Originally Posted by themyst View Post
Can any 6AT stage 2 beta testers step up and post some logs? I want to see if the timing flatline present on piggybacks is present on the flash.

If none exist, sign me up. I'll go drive to Mexico and wind it out deep into 5th gear.
Who are the notorious few that have access to Stage 2, for each MT and AT respectively.....
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      09-13-2011, 04:52 PM   #107
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Quote:
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Yes but the YouTube community doesn't have a GIAC Vs Cobb video
Im down..
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      09-13-2011, 04:55 PM   #108
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Once I see a Cobb Stage 2 car trap about 115mph on pump 93 gas with bolt ons, I will consider it.
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      09-13-2011, 05:00 PM   #109
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ill try to post up some s2 logs tonight
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      09-13-2011, 05:01 PM   #110
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Quote:
Originally Posted by RnmEvo9 View Post
Once I see a Cobb Stage 2 car trap about 115mph on pump 93 gas with bolt ons, I will consider it.
I don't see that being too difficult, even full weight.
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