OFT v2.06 Non-Beta

[veck]

Almost thought something was wrong with mine. Good to know its just normal.

[Bobblehead]

I have another really dumb question, how much knock correction (KC) is acceptable? I updated the tune and ran up and down the road and saw it go anywhere from 2* to 5*. I don't have the light to do a safe datalog tonight, but I'll run one from 2.5k to redline and one cruising and upload them tomorrow after work.

Basically I just want to know if its safe to drive it to and from work tomorrow, or if I should flash back to stock.
Thanks!

[steve99]

Originally Posted by Bobblehead

I have another really dumb question, how much knock correction (KC) is acceptable? I updated the tune and ran up and down the road and saw it go anywhere from 2* to 5*. I don't have the light to do a safe datalog tonight, but I'll run one from 2.5k to redline and one cruising and upload them tomorrow after work.

Basically I just want to know if its safe to drive it to and from work tomorrow, or if I should flash back to stock.
Thanks!

KC Learned is not knock its actually knock correction advance and is the amount added to the base timing. It will go up and down as per the values in the Knock Correction Advance Max A table.

For knock you need to log FBKC Feedback Knock control on an OFT this is (Knock Correction) easily confused with KC Learned or KCA, and FLKC Fine learning Knock Control and IAM ignition advance mutliplers. Have a read og the knock corection thread below.

Look for IAM = 1 ideally or very close to 1

FLKC and Knock Correction(FBKC) to idealy be zero but the occasional 0.7 or so is acceptable

Values like -2 or more are a concern

If you getting -5 Knock correction that is not good but I suspect your logging KC Learned

[Stealthy]

In terms of reliability, is it safer to run 91 vs 93 stage 1? Or is it equal?

Currently running 91 tune but still fill up with chevron 94. Shell 91 feels a bit sluggish in comparison, probably due to a timing retard...

Which stage 1 tune do you guys prefer better and why?

[Shiv@Openflash]

Originally Posted by steve99

KC Learned is not knock its actually knock correction advance and is the amount added to the base timing. It will go up and down as per the values in the Knock Correction Advance Max A table.

For knock you need to log FBKC Feedback Knock control on an OFT this is (Knock Correction) easily confused with KC Learned or KCA, and FLKC Fine learning Knock Control and IAM ignition advance mutliplers. Have a read og the knock corection thread below.

Look for IAM = 1 ideally or very close to 1

FLKC and Knock Correction(FBKC) to idealy be zero but the occasional 0.7 or so is acceptable

Values like -2 or more are a concern

If you getting -5 Knock correction that is not good but I suspect your logging KC Learned

+1, I also suspect you are logging KC Learned and not knock retard. A range of 2 to 5 deg is correct for KS Learned.

[Trettiosjuan]

Originally Posted by Stealthy

In terms of reliability, is it safer to run 91 vs 93 stage 1? Or is it equal?

Currently running 91 tune but still fill up with chevron 94. Shell 91 feels a bit sluggish in comparison, probably due to a timing retard...

Which stage 1 tune do you guys prefer better and why?

91 map on 94 fuel should always be safer because it less aggressive with timing and the fuel should have higher knock resistance. The other way around would be unsafe.

[Bobblehead]

I made a cruising datalog, I'll upload it when I can, but couldn't do a safe 3rd gear pull due to the rain.

My Advance Multiplier stayed mainly at 1. I saw it go to .96, .99, and saw it at 0 in city traffic. I closed and re-opened the realtime data and it was back up at 1. My AFR while cruising at 55mph and 10% throttle was ~14.58 to ~14.74 or so. Under a heavy pull up a hill it got down to around ~12.

Do these numbers check out?

[steve99]

Originally Posted by Bobblehead

I made a cruising datalog, I'll upload it when I can, but couldn't do a safe 3rd gear pull due to the rain.

My Advance Multiplier stayed mainly at 1. I saw it go to .96, .99, and saw it at 0 in city traffic. I closed and re-opened the realtime data and it was back up at 1. My AFR while cruising at 55mph and 10% throttle was ~14.58 to ~14.74 or so. Under a heavy pull up a hill it got down to around ~12.

Do these numbers check out?

sounds fairly normal. Ideally IAM should be one so their must be a bit of knock in lower rpm range but log will show it.

Try changing brands of fuel some are way better than other even with same octane rating

[Bobblehead]

Originally Posted by steve99

sounds fairly normal. Ideally IAM should be one so their must be a bit of knock in lower rpm range but log will show it.

Try changing brands of fuel some are way better than other even with same octane rating

OK thanks! Right now I'm on a mixed tank of Kwik fill and Sunoco 93's. I'll run this tank down and test which one is better.

[Shiv@Openflash]

OFT OTS v2.062 is now available for download. The only change (as documented the change log) is added support for ZA1JD00D calibration ID. No mapping changes otherwise. So unless you have a ZA1JD00D ROM and are waiting for tune file support, there is no need to download this latest release

Cheers,
Shiv

[Wayno]

I'm curious why Stg1 91/93 have -14.88 base timing for the soft rev limiter and Stg2 91/93/E85 all have -0.14.
Does this mean Stg2 has a softer limiter and would Stg1 7600rpm be better at -0.14 instead?

I accidentally put the -14.88 from Stg1 in my Stg2 maps and the limiter still threw me forward in the seat.

Thanks

[steve99]

Originally Posted by Wayno

I'm curious why Stg1 91/93 have -14.88 base timing for the soft rev limiter and Stg2 91/93/E85 all have -0.14.
Does this mean Stg2 has a softer limiter and would Stg1 7600rpm be better at -0.14 instead?

I accidentally put the -14.88 from Stg1 in my Stg2 maps and the limiter still threw me forward in the seat.

Thanks

seems suspect would think it should be the same seems like a typo as your using same defs and all the other values would be out if def scaling was wrong.

did you check the RPM fuel cut setting ? think its under misc limits folder they need changing as well think it 7600 cut and 7450 resume but check the table in a A01G OFT rom

[Wayno]

Originally Posted by steve99

seems suspect would think it should be the same seems like a typo as your using same defs and all the other values would be out if def scaling was wrong.

did you check the RPM fuel cut setting ? think its under misc limits folder they need changing as well think it 7600 cut and 7450 resume but check the table in a A01G OFT rom

No, fuel cut is 7600/7550 across the board.

US and EU Stg1 and Stg2 soft limits are consistent across the board. Stg1 = -14.88, Stg2 = -0.12.

[steve99]

Originally Posted by Wayno

No, fuel cut is 7600/7550 across the board.

US and EU Stg1 and Stg2 soft limits are consistent across the board. Stg1 = -14.88, Stg2 = -0.12.

That strange, got no idea why that would be -14 does seem a bit savage