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    Questions for the Cobb Experts

    What is the difference between cobb stage 2+ FMIC aggressive V4.02, and Cobb 100 octane race map V4.03? I mean specifically, what is the difference in terms of boost levels, boost curve, and timming. How different would a car running the first map with 95 octane be from that same car running the second map on 100 octane in terms of HP/TQ?

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    The main differences are in timing, boost/load isn't much different between the two.

    The higher timing targets in the race requires the correct amount of octane to run properly.

    FYI running higher octane on the OTS stage 2 FMIC aggressive map won't net you any gains.

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    Click here to enlarge Originally Posted by themyst Click here to enlarge
    The main differences are in timing, boost/load isn't much different between the two.

    The higher timing targets in the race requires the correct amount of octane to run properly.

    FYI running higher octane on the OTS stage 2 FMIC aggressive map won't net you any gains.
    ^Correct. You'd only see a gain using higher octane if you were having timing corrections and needed better fuel to clean them up.

    With the Race/E30 maps, we do carry boost a little longer (by way of the WGDC Adder), but the major change is in the timing strategy.

    We also have a dyno plot of Stock vs Stage2+ vs Race Map here:
    https://static.cobbtuning.com/cobbtu...sPORT_v403.pdf
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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    ^Correct. You'd only see a gain using higher octane if you were having timing corrections and needed better fuel to clean them up.

    With the Race/E30 maps, we do carry boost a little longer (by way of the WGDC Adder), but the major change is in the timing strategy.

    We also have a dyno plot of Stock vs Stage2+ vs Race Map here:
    https://static.cobbtuning.com/cobbtu...sPORT_v403.pdf
    Thank you so much Josh. I could have sworn that your Stage 2+ Aggressive map runs so much faster with a little 100 octane blended in. But maybe it was bad 93 fuel, or a bad butt dyno.

    So Cobb is claiming a verified +40hp/+45tq for the 100 octane race map over the Stage 2+ aggressive (93 octane)?

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    Click here to enlarge Originally Posted by Turkeybaster115 Click here to enlarge
    Thank you so much Josh. I could have sworn that your Stage 2+ Aggressive map runs so much faster with a little 100 octane blended in. But maybe it was bad 93 fuel, or a bad butt dyno.

    So Cobb is claiming a verified +40hp/+45tq for the 100 octane race map over the Stage 2+ aggressive (93 octane)?
    Yea, the timing makes a huge difference. The chart I posted was exactly what we saw on our dyno and was extremely consistent.
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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    ^Correct. You'd only see a gain using higher octane if you were having timing corrections and needed better fuel to clean them up.

    With the Race/E30 maps, we do carry boost a little longer (by way of the WGDC Adder), but the major change is in the timing strategy.

    We also have a dyno plot of Stock vs Stage2+ vs Race Map here:
    https://static.cobbtuning.com/cobbtu...sPORT_v403.pdf
    Thank you.

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    @Josh@Cobb -
    Do you have an idea when the race code will be released?

    ALSO, will we have the ability to adjust AFR targets based on ECT..?
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    Click here to enlarge Originally Posted by boosted-M Click here to enlarge
    @Josh@Cobb -
    Do you have an idea when the race code will be released?

    ALSO, will we have the ability to adjust AFR targets based on ECT..?
    Race code is being worked on, but I'm not sure when I'll have something final. I haven't looked into AFR based on ECT. As far as I've seen there are no fueling tables that use ECT as an axis.
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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    Race code is being worked on, but I'm not sure when I'll have something final. I haven't looked into AFR based on ECT. As far as I've seen there are no fueling tables that use ECT as an axis.
    What features is the race code anticipated to add?

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    Click here to enlarge Originally Posted by DallasBoosted Click here to enlarge
    What features is the race code anticipated to add?
    It will allow for more boost. Currently its capped at 1.29 bar by the DME. This will really only be for guys running larger than stock turbos.
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    It is quite amazing what 5 degrees of timing will do for power gains.

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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    ^Correct. You'd only see a gain using higher octane if you were having timing corrections and needed better fuel to clean them up.

    With the Race/E30 maps, we do carry boost a little longer (by way of the WGDC Adder), but the major change is in the timing strategy.

    We also have a dyno plot of Stock vs Stage2+ vs Race Map here:
    https://static.cobbtuning.com/cobbtu...sPORT_v403.pdf

    Josh, when mentioning the WGDC Adder, there is also a table labeled WGDC Ceiling Adder did you adjust both of these or just the one you mentioned in regards to the questions in this post?

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    Click here to enlarge Originally Posted by harry Click here to enlarge
    Josh, when mentioning the WGDC Adder, there is also a table labeled WGDC Ceiling Adder did you adjust both of these or just the one you mentioned in regards to the questions in this post?
    The answer you seek requires a long and daunting process...

    1. Open the stage 2+FMIC Aggressive map in ATR.
    2. Write down the values for the WG Adder & Adder ceiling.
    3. Open the E30/Race map.
    4. Compare the results of step 2 to what you are currently viewing.
    5. Praise allah.
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    Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
    The answer you seek requires a long and daunting process...

    1. Open the stage 2+FMIC Aggressive map in ATR.
    2. Write down the values for the WG Adder & Adder ceiling.
    3. Open the E30/Race map.
    4. Compare the results of step 2 to what you are currently viewing.
    5. Praise allah.
    Thank you Allah,for enlightening us,was bumping the thread to generate more interest on this topic, are there any other tuning tips that Allah whould like to share with us?

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    Click here to enlarge Originally Posted by harry Click here to enlarge
    Thank you Allah,for enlightening us,was bumping the thread to generate more interest on this topic, are there any other tuning tips that Allah whould like to share with us?
    Yes, dont try to adjust the requested load factor tables based on coolant temp to reduce boost until your ect's reach above 104*. It reduced boost even when above 104*, there's nothing more painful than only being able to hit 4psi at all times...
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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    It will allow for more boost. Currently its capped at 1.29 bar by the DME. This will really only be for guys running larger than stock turbos.

    AWESOME!

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    Click here to enlarge Originally Posted by Josh@Cobb Click here to enlarge
    It will allow for more boost. Currently its capped at 1.29 bar by the DME. This will really only be for guys running larger than stock turbos.
    Will this require swapping out for the 3.5bar TMap sensor that Dzenno took from an N20?? Not a big deal & it's nice to recycle OEM parts, just wondering.
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    Click here to enlarge Originally Posted by benzy89 Click here to enlarge
    Will this require swapping out for the 3.5bar TMap sensor that Dzenno took from an N20?? Not a big deal & it's nice to recycle OEM parts, just wondering.
    To make much use of the raised boost cap you will need the 3.5 bar TMAP. At ~19psi the stock TMAP is almost tapped out and the closer you get to the 2.5 bar limit the less reliable the signal may become.
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    Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
    The answer you seek requires a long and daunting process...

    1. Open the stage 2+FMIC Aggressive map in ATR.
    2. Write down the values for the WG Adder & Adder ceiling.
    3. Open the E30/Race map.
    4. Compare the results of step 2 to what you are currently viewing.
    5. Praise allah.
    Don't forget P factor

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    Super old thread but I was wondering what the correlation is between a change in the adder / ceiling table and boost target for any given level of load/rpm/requested air with stockish PID table settings... I'm working in Tunerpro
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