OFT - Guide To Dialling In Your OTS Base Tune

[oldgunfan]

Originally Posted by power_of_ra

Hey everyone,

total newb here trying to quiet my cold start rev a bit so i took my stage 2 UEL 91 tune and changed the post ignition timing start values to -6.99 from -15. saved it as a new .bin and compared - looked all good.

when i tried to upload to my OFT, i get this error [see attached image].

B00C cal ID using B00C .bin and .xml from OTS 2.074. What am i doing wrong?

when you saved the file did you put .bin at the end? it will not do it for you.

[power_of_ra]

yep. as a test im trying to see if it'll add tunes from previous OTS releases and thats not working either.

[oldgunfan]

Originally Posted by power_of_ra

yep. as a test im trying to see if it'll add tunes from previous OTS releases and thats not working either.

I would uninstall open flash manager and reinstall see if that works.

[oldgunfan]

When my OFM 1.24 updated today my antivirus gave me crap and tried to delete OFM.

[power_of_ra]

that seems to have done it! yea i updated mine today.. maybe that messed up the installation somehow. thanks for your help! if this works, i'll probably try some slight knock correction next since i'm using cheap/crappy 91 fuel

[oldgunfan]

Originally Posted by power_of_ra

that seems to have done it! yea i updated mine today.. maybe that messed up the installation somehow. thanks for your help! if this works, i'll probably try some slight knock correction next since i'm using cheap/crappy 91 fuel

cool

[akyp]

Load limit for P&L 4-1 EL catted (WIP):


Before:
http://datazap.me/u/akyp/20160221-st...zoom=1626-1779


After:
http://datazap.me/u/akyp/20160229-st...zoom=6120-6267


The first thing I wanted to address is the lean spikes which contributed to tip-in knock. With more time I can make the AFR plot flatter, but I'm leaving it for now as it took me enough time to reach this point (car is not DD). Currently using "v97.US.Lean Stg2" MAF scale from the spreadsheet linked in OP but I took the liberty to modify the value at 3.2v from 64.60 to 68.00 as it looked out of place.

Thanks @Wayno for this excellent guide. The load limit is just the beginning. It is my eventual goal to dial in AVCS maps (with vgi's tool) for this particular header.

[Wayno]

Yeah 68 is the value to use if you want to flatten out that area, though it doesn't make it look much less weird compared to the rich scale. I just use 1.0 below 2400 now because the ace header doesn't need workarounds like that. Good that you used the guide as intended to work out your own values you need.

[JB86'd]

Just wanted to post a little BEFORE and AFTER here of my OFT Stage 2 tune with JDL UEL header, results from using this guide by Wayno.

My current Load Limits, and MAF scale (compared to the standard OFT maf scaling):



Before- OFT stage 2 tune, 91 oct with no modifications.

http://datazap.me/u/joshbustos86/jdl...zoom=1592-1718



After- OFT stage 2 tune, 91 oct with custom OL maf scaling/ Load Limits and modified DI/PI tables based on Wayno's modifications.

http://datazap.me/u/joshbustos86/jdl...4&zoom=609-733

[Wayno]

I run the original port injection ratios above 5k now, just in case Toyota has them there to keep the intake valves clean. I haven't seen any proof that running 100% direct from 5k to 7k is safe long term and I haven't seen any evidence that it produces more power, only that you can run about 2 degrees more advance with 100% DI, which may not necessarily mean more power if some PI thrown in produces a better mixture.

[JB86'd]

Okay, if I go to the original DI/PI ratios is that simply going to change my LTFT there? Shouldn't affect the MAF or AFR right?

[freerunner]

Originally Posted by JB86'd

Okay, if I go to the original DI/PI ratios is that simply going to change my LTFT there? Shouldn't affect the MAF or AFR right?

Shouldn't affect it, but if it still does, it's easy to fix with altering the global scalar.
I'm on vacation right now and don't remember the name of the table.

Refer to the pi:di thread for further information and how to do it.

Steve99 has it pretty much nailed down in this thread.

[Wayno]

Originally Posted by JB86'd

Okay, if I go to the original DI/PI ratios is that simply going to change my LTFT there? Shouldn't affect the MAF or AFR right?

Yes just copy the tables from stock or ots petrol roms. Ltft will change but afr won't.

[solidONE]

^ It would be a good idea for those of you messing with the load limits to log the cam timing as well to better determine whether the lean spots are caused by scavenging effect. The valvetrain noise caused by aggressive overlap may also contribute to knock, or rather "knock". (in quotations because this may not be real knock)

Originally Posted by akyp

Load limit for P&L 4-1 EL catted (WIP):


Before:
http://datazap.me/u/akyp/20160221-st...zoom=1626-1779


After:
http://datazap.me/u/akyp/20160229-st...zoom=6120-6267


The first thing I wanted to address is the lean spikes which contributed to tip-in knock. With more time I can make the AFR plot flatter, but I'm leaving it for now as it took me enough time to reach this point (car is not DD). Currently using "v97.US.Lean Stg2" MAF scale from the spreadsheet linked in OP but I took the liberty to modify the value at 3.2v from 64.60 to 68.00 as it looked out of place.

Thanks @Wayno for this excellent guide. The load limit is just the beginning. It is my eventual goal to dial in AVCS maps (with vgi's tool) for this particular header.