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Stock ecu antilag

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Old Jul 3, 2021 | 09:43 PM
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Default Stock ecu antilag

Using hptuners or efi live with stock pcm, I was thinking of 0 out the timing table for egr (not affect existing map). Then using a push button to activate the egr map somehow (ground or apply voltage to a pin?)

I can subtract timing at the same rpm I have my msd 2step box set to. This will be give a limiter and timing cut to build boost as long as the car is in neutral and whatever button is pushed to activate that map.

what other maps are used for the egr or potential downfalls from activating the EGR? Is it as simple as just turning it on in PC then grounding a pin out so it uses that timing map? Don’t really know how many different maps are used when egr is active. I know the timing one but is their a fuel also?
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Old Jul 4, 2021 | 10:38 AM
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Seems like it would be easier to just use a momentary button to mess with the IAT timing table like the N2O guys use.
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Old Jul 4, 2021 | 10:49 AM
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Originally Posted by ddnspider
Seems like it would be easier to just use a momentary button to mess with the IAT timing table like the N2O guys use.
I’m using my IAT for M1 spray already.
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Old Jul 4, 2021 | 11:22 AM
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Originally Posted by Z32_5.3
I’m using my IAT for M1 spray already.
You don't just use a boost switch for meth? Would make more sense to switch it up and be easier.
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Old Jul 4, 2021 | 01:29 PM
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Originally Posted by ddnspider
You don't just use a boost switch for meth? Would make more sense to switch it up and be easier.
what do you mean by that?

right now the Alkycontrol kit works off the map sensor at 4psi. You think I should interrupt the meth relay with switch and use the hot side of IAT to reduce timing for antilag? Then when I’m off the switch meth turns on instantly cause in boost and IAT will jump to 50s and give me my full timing?
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Old Jul 4, 2021 | 01:55 PM
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Originally Posted by Z32_5.3
what do you mean by that?

right now the Alkycontrol kit works off the map sensor at 4psi. You think I should interrupt the meth relay with switch and use the hot side of IAT to reduce timing for antilag? Then when I’m off the switch meth turns on instantly cause in boost and IAT will jump to 50s and give me my full timing?
Sounds about right lol. All depends if you want to spray the meth while on the antilag 2. Just seems like it would be much easier to use the IAT for antilag. I believe HPT has a COS for N2O that works off grounding a pin but I don't know what you're using to tune with either. Just some ideas.
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Old Jul 4, 2021 | 02:08 PM
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Originally Posted by ddnspider
Sounds about right lol. All depends if you want to spray the meth while on the antilag 2. Just seems like it would be much easier to use the IAT for antilag. I believe HPT has a COS for N2O that works off grounding a pin but I don't know what you're using to tune with either. Just some ideas.
I have efi live but it’s got same stuff as hpt just diff places.

im just looking for a pin that as access to timing map. Would be lovely to leave the IAT alone cause whole car working great now. Just find another pin. I can use the park/neutral maps too but only under certain tps/speed settings. Easier to find a timing map under a switched pin like EGR.
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Old Jul 4, 2021 | 05:26 PM
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Originally Posted by Z32_5.3
I have efi live but it’s got same stuff as hpt just diff places.

im just looking for a pin that as access to timing map. Would be lovely to leave the IAT alone cause whole car working great now. Just find another pin. I can use the park/neutral maps too but only under certain tps/speed settings. Easier to find a timing map under a switched pin like EGR.
I'm not sure another one exists on Efi Live, but I haven't played with the COS options.
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Old Jul 5, 2021 | 12:44 AM
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The only good way to do this would be to find a table that is controlled by the clutch switch. Otherwise, any situation that could possibly need antilag is going to be so fast and intermittent that you would never have time to find and activate some separate switch. If you are not otherwise far too busy, then you are not going fast enough to need antilag.
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Old Jul 5, 2021 | 07:16 AM
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Originally Posted by gametech
The only good way to do this would be to find a table that is controlled by the clutch switch. Otherwise, any situation that could possibly need antilag is going to be so fast and intermittent that you would never have time to find and activate some separate switch. If you are not otherwise far too busy, then you are not going fast enough to need antilag.
my 60-130 is 5.2 which isn’t too bad AND was not taken during a 1/4mile run.

the switch doesn’t really matter because antilag would be done prior to racing. Once race is going your not touching any switches.

Finding a map that’s able be used off a switch is all I need. Once I find the capability then I can wire switch where ever.
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Old Jul 6, 2021 | 12:00 PM
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with efilive you use the COS5 and the nitrous stuff. It has timing and fuel modifiers with a separate input pin. I did this to great success on my S10 using the clutch switch to activate it with the msd 2 step. It would blow flames about 3' out the front bumper downpipe.
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Old Jul 6, 2021 | 12:49 PM
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Originally Posted by TrendSetter
with efilive you use the COS5 and the nitrous stuff. It has timing and fuel modifiers with a separate input pin. I did this to great success on my S10 using the clutch switch to activate it with the msd 2 step. It would blow flames about 3' out the front bumper downpipe.
cos5 ? Anymore info?

I changed my trans type to non electric auto and PN type. Ground out pin 34 puts it into the park timing map (clutch in). Non grounded out, it runs off the neutral timing map. Then Setup my TPS to 70% and speed to 5mph… so under 70% throttle and under 5mph if I put clutch in then it runs off the park spark map which has a copy and paste of my high octane map except for the timing change at 3200-4000rpm when my msd box is. Non clutch in it runs off the neutral map which has copy of my high octane map cause it’ll stay in that map under 70% throttle. Over that throttle it goes into full high octane map.

however, I don’t like it this way cause I had to set my overspeed timing to 0 across the map. Not sure what map it runs off when thinks in park but clearly doesn’t know what rpm should be at lol. Ran it this way for a single day and then stopped.

for sure wanna look into how you said
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Old Jul 6, 2021 | 01:33 PM
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im pretty sure youre chasing your tail unless youre not on a 0411 ecu. cos5 is perfect for what youre doing without any janky IAT nonsense

https://download.efilive.com/Tutoria...20Tutorial.pdf

https://forum.efilive.com/showthread...99-Custom-OS-5

open up a cos5 file in efilive and it has info on what all it can do in there. ill attach one of my old s10 tunes if it will let me
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Old Jul 6, 2021 | 01:42 PM
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here you go, this one is pretty spicy on the 2 step
Attached Files
File Type: ctz
s10_0059.ctz (476.7 KB, 43 views)
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Old Jul 7, 2021 | 07:35 AM
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Originally Posted by TrendSetter
here you go, this one is pretty spicy on the 2 step
thanks man… I am on a 0411 but I have couple others too. I asked someone about it that tunes and he said we could reflash the OS on the 0411 and copy the maps over. Appreciate the links.
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