Changing mininum speed on launch control?
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Joined: Nov 2007
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From: Trinidad
You entered 10 s as 10000 ms, correct?
94170015?
Awesome, I always hated how the launch control would shut off with virtually any vehicle movement.
Awesome, I always hated how the launch control would shut off with virtually any vehicle movement.
That is the correct place in the XML, whether or not it is correct is a different story.
Regarding the offset:
For example, the stationary rev limit address for 88590015 = 2798 which is 2 higher than the first address mrfred posted (remember, we are adding in hex here).
So, subtract 2 from your address and (I think) you wind up with 2748.
For the next table there is a difference of E2 (in hex), so add E2 to your 274A and you should have 282C (again, I think). These may not be correct, but this is where MrFred was suggesting you start.
Assuming the values are the same between roms the defaults are 3km/h and 2100ms. Use those addresses and see if things seem correct
Regarding the offset:
For example, the stationary rev limit address for 88590015 = 2798 which is 2 higher than the first address mrfred posted (remember, we are adding in hex here).
So, subtract 2 from your address and (I think) you wind up with 2748.
For the next table there is a difference of E2 (in hex), so add E2 to your 274A and you should have 282C (again, I think). These may not be correct, but this is where MrFred was suggesting you start.
Assuming the values are the same between roms the defaults are 3km/h and 2100ms. Use those addresses and see if things seem correct
Correct
Not at all... unless you like to wait forever for the launch control to activate. This was just used to confirm the address and scaling. I'll probably set it to something like 750ms, but if I have my speed up at 17km/s it might be fine at the stock 2100ms. Just need to turn that over in my head a bit (it probably won't matter either way).
Not at all... unless you like to wait forever for the launch control to activate. This was just used to confirm the address and scaling. I'll probably set it to something like 750ms, but if I have my speed up at 17km/s it might be fine at the stock 2100ms. Just need to turn that over in my head a bit (it probably won't matter either way).
Registered User
Joined: Nov 2007
Posts: 1,507
Likes: 2
From: Trinidad
Not at all... unless you like to wait forever for the launch control to activate. This was just used to confirm the address and scaling. I'll probably set it to something like 750ms, but if I have my speed up at 17km/s it might be fine at the stock 2100ms. Just need to turn that over in my head a bit (it probably won't matter either way).
Since we have not confirmed your address you may want to test with 10000ms (10 seconds) and something like 3k rpm. Your rev limiter should be at the normal full rev limit until after you cross under the set speed for the time that you have set. At that point you will get a new rev limiter at whatever you have set your stationary rev limit at.
After you know it is the correct address you can set it to whatever appropriate value you like. If 2100ms is working fine for you, then feel free to leave it.
Started looking at this for a friend with 96530006
By offset these are the addresses:
km/h looks right, default for time on that rom is 3700ms. I'll see if I can get him to adjust it and let us know if it is correct.
By offset these are the addresses:
Code:
<scaling name="VehicleSpeedFreq" units="km/h" toexpr="x*0.25" frexpr="x/0.25" format="%.1f" min="0" max="64" inc="0.2" storagetype="uint16" endian="big"/> <table name="Max Speed for Stationary Rev Limit" address="2b48" category="Misc Limits" type="1D" scaling="VehicleSpeedFreq"/> <table name="Stationary Rev Limit Cross Under Max Speed Enable Delay" address="2c2c" category="Misc Limits" type="1D" scaling="Time"/>
88580014 by calculations (since they were never posted):
<!-- <table name="Stationary Rev Limit" address="274a"/> -->
<!-- <table name="Stationary Rev Limit" address="274a"/> -->
Code:
<scaling name="VehicleSpeedFreq" units="km/h" toexpr="x*0.25" frexpr="x/0.25" format="%.1f" min="0" max="64" inc="0.2" storagetype="uint16" endian="big"/> <table name="Max Speed for Stationary Rev Limit" address="2748" category="Misc Limits" type="1D" scaling="VehicleSpeedFreq"/> <table name="Stationary Rev Limit Cross Under Max Speed Enable Delay" address="282C" category="Misc Limits" type="1D" scaling="Time"/>
Joined: Mar 2003
Posts: 394
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From: Used to be in Nor Cal, now working in Seoul
Using the "address offset" method as fostytou suggested, for 94170008, Max speed value is same as other ROMs, 3.0 km/h, but it seems the timer is set to the maximum value (FF in hex16). I looked at the values around that address using hex editor, and it seems they are all FF near that address, so I guess those addresses are not used?
2c2c is the calculated address for the timer value, but from 2b7a to 32ff are all "FF"s.
But if I look at the Ralliart ECU (92460000), the values are set to:
5000 rpm (stationary rev limit)
10 km/h
575 ms
which seems pretty good for real launch control, while EVO9 value (3km/h, and 2100ms) and EVO8 MR (2005 USDM) (3km/h and 4800ms) seem to be more for protecting the tranny.
I haven't launched my car yet, so I am not sure whether my "FF or 1638375 ms = ~1638 sec = ~27 minutes" is actually in effect or not.
2c2c is the calculated address for the timer value, but from 2b7a to 32ff are all "FF"s.
But if I look at the Ralliart ECU (92460000), the values are set to:
5000 rpm (stationary rev limit)
10 km/h
575 ms
which seems pretty good for real launch control, while EVO9 value (3km/h, and 2100ms) and EVO8 MR (2005 USDM) (3km/h and 4800ms) seem to be more for protecting the tranny.
I haven't launched my car yet, so I am not sure whether my "FF or 1638375 ms = ~1638 sec = ~27 minutes" is actually in effect or not.
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