OpenFlash Tablet v1.42b maps now available

[jamesm]

you're definitely not going to hurt anything tweaking the cranking ipw table + or - a few ms. when i first did my tune i forgot to edit it at all with 900cc injectors lol.

[Terrapin77]

In Atlanta, all the stations I use guarantee at least E70.

Originally Posted by mad_sb

Good work man, My tables have WAY more pulse width in them.... mainly because my local station is pumping E95.............. despite it only being around 60 in the AM's here I am about 40% - 45% more pulse width than stock to get a clean 1st key start. If I splash blend it down to E80 it takes a lot less. My old station in atlanta was pumping E70ish in the winter i think...

For those that are playing with these tables, don't be scared, just add 5ms at a time to the area you start having trouble and remember the higher the E content the more pulse width is needed.

[mad_sb]

Originally Posted by jamesm

you're definitely not going to hurt anything tweaking the cranking ipw table + or - a few ms. when i first did my tune i forgot to edit it at all with 900cc injectors lol.

lol, yeah that was a learning curve for lots of folks, being that the cranking pulse width is independent of the port injector scaling.

[Indestruct]

Originally Posted by mad_sb

a couple things...

1. IMO a few key turns / button presses is well worth the extra power E provides
2. Have you tested your supply of E85 to get a better idea what % they are pumping?
3. At what temp do you start having issues?
4. Download rom raider and tweak the cranking enrichment tables, add 5ms at a time in the cells at the temp you are having problems and lower.

Thanks for the encouragement mad, I'm one of the few people on this forum that has an e85 station right around the corner, hehe, literally the same block. I've noticed the failed starts/sputters at all temps, ranging from 45-70. I really don't drive my car that much... I did download romraider but I couldn't load my map, I guess I could give it another try...

[Terrapin77]

The 1st time I used Rom Raider, I couldn't figure it out as well.. To get your map to load, you need the correct ECU definition. It will match your CAL ID.

Originally Posted by Indestruct

Thanks for the encouragement mad, I'm one of the few people on this forum that has an e85 station right around the corner, hehe, literally the same block. I've noticed the failed starts/sputters at all temps, ranging from 45-70. I really don't drive my car that much... I did download romraider but I couldn't load my map, I guess I could give it another try...

[Indestruct]

Originally Posted by Terrapin77

The 1st time I used Rom Raider, I couldn't figure it out as well.. To get your map to load, you need the correct ECU definition. It will match your CAL ID.

Thanks, I guess I'm a noob b/c I can't find the definition for ZA1J700C, I found a bunch of other similar definitions on their site...

[Luckrider]

All of the RR definitions need for OFT tunes are on the OFT downloads page here: http://www.openflashtablet.com/downloads/index.html

It is the last link at the bottom listed as XML files.

[Indestruct]

Originally Posted by Luckrider

All of the RR definitions need for OFT tunes are on the OFT downloads page here: http://www.openflashtablet.com/downloads/index.html

It is the last link at the bottom listed as XML files.

THANKS A BUNCH!!! I kept reading the RR forums, lol

[bfrank1972]

Has anyone tweaked Shiv's 1.42 ots stage 1 map for 93 yet? Pretty sure all the OTS maps are tuned for 91, and I'm thinking We could squeeze a little more out of the stage 1 map if optimized for 93. If not I'm planning to give it a shot. Going to start by comparing stage1 timing tables to the stock timing tables, multiply the differences by a small amount, and apply to my new 93 map. Check knock and incrementally repeat. When I do see knock, pull timing 1/2 degree and re-check.. Seem like a sound approach? Any other advice? I'm a software engineer so I know how to approach things empirically, but I'm learning so any tips would be greatly appreciated.


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[mad_sb]

Originally Posted by bfrank1972

Has anyone tweaked Shiv's 1.42 ots stage 1 map for 93 yet? Pretty sure all the OTS maps are tuned for 91, and I'm thinking We could squeeze a little more out of the stage 1 map if optimized for 93. If not I'm planning to give it a shot. Going to start by comparing stage1 timing tables to the stock timing tables, multiply the differences by a small amount, and apply to my new 93 map. Check knock and incrementally repeat. When I do see knock, pull timing 1/2 degree and re-check.. Seem like a sound approach? Any other advice? I'm a software engineer so I know how to approach things empirically, but I'm learning so any tips would be greatly appreciated.


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You might start by checking your logs for the base map. Unless you are always staying at an IAM of 1.0 your not going to have much if any room for timing. Either way, you need to be watching for knock retard and knock correction when your tuning more so than IAM as often times the IAM wont drop until after a few knock events.

There are plenty of subaru tuning guides out there on the net, like this one: https://sites.google.com/site/asubienewbietuningguide/

I think you really want to get a firm grasp of how the knock control systems works before you start trying to fine-tune the base map.

[bfrank1972]

Originally Posted by mad_sb

You might start by checking your logs for the base map. Unless you are always staying at an IAM of 1.0 your not going to have much if any room for timing. Either way, you need to be watching for knock retard and knock correction when your tuning more so than IAM as often times the IAM wont drop until after a few knock events.

There are plenty of subaru tuning guides out there on the net, like this one: https://sites.google.com/site/asubienewbietuningguide/

I think you really want to get a firm grasp of how the knock control systems works before you start trying to fine-tune the base map.

Thanks mad_sb - I've read that guide several times already and have a pretty decent grasp of how advance, IAM, FLKC, etc. work. The algorithm itself is very straightforward. I haven't done actual log recording YET, but I've been monitoring IAM and knock indicators real time on the OFT, and it looks ok (very occasional knock spikes under certain sudden load conditions, but I've read that's normal?). IAM is solid as a rock at 1. You're right though, I should actually do some logging rather than just real time monitoring, I'll make that my 'baseline' step. Maybe log WOT from 2000 to redline in 2nd and 3rd, and then some normal part throttle driving?

I appreciate your advice.

EDIT: One question - in ROMRAIDER, why are there two timing base maps? I.E. map A and map B?

[mkivsoopra]

I've been having lots of cold start issues ever since I started using the E85 OTS maps. It would typically take 5-7 starts every morning to get the car running. Thanks to @Malt and @Terrapin77, I used their values and adjusted the values in the temperature range that's typical for my area (40-65F) this time of the year.

This morning, I was able to start my car on the second crank with a coolant temp of 62F. Gonna keep experimenting to see if I can get it to start on the first.

FWIW, I'm using 100% Propel E85, which measures 78-80% ethanol on my Zeitronix gauge.

Disclaimer.. use at your own risk blah blah blah.

[Terrapin77]

Originally Posted by mkivsoopra

I've been having lots of cold start issues ever since I started using the E85 OTS maps. It would typically take 5-7 starts every morning to get the car running. Thanks to @Malt and @Terrapin77, I used their values and adjusted the values in the temperature range that's typical for my area (40-65F) this time of the year.

This morning, I was able to start my car on the second crank with a coolant temp of 62F. Gonna keep experimenting to see if I can get it to start on the first.

FWIW, I'm using 100% Propel E85, which measures 78-80% ethanol on my Zeitronix gauge.

Disclaimer.. use at your own risk blah blah blah.

I've been adjusting my cranking tables for the past week. As of today, the best I've been able to do is get the car to start on the 2nd crank regardless of the varying cold temps. I'm not going to stop revising my map until my car starts on the 1st crank. On the newest map I just flashed, I increased all tables 50 degrees & below by 30%. Hopefully, when I start the car in the morning it will start right up.

I just want to say for everyone having E85 cold start issues, it is really easy to adjust the cranking values in Rom Raider yourself. I'm a tuning noob and I figured it out fairly quickly. Unleash your inner nerd.

[mad_sb]

Originally Posted by mkivsoopra

I've been having lots of cold start issues ever since I started using the E85 OTS maps. It would typically take 5-7 starts every morning to get the car running. Thanks to @Malt and @Terrapin77, I used their values and adjusted the values in the temperature range that's typical for my area (40-65F) this time of the year.

This morning, I was able to start my car on the second crank with a coolant temp of 62F. Gonna keep experimenting to see if I can get it to start on the first.

FWIW, I'm using 100% Propel E85, which measures 78-80% ethanol on my Zeitronix gauge.

Disclaimer.. use at your own risk blah blah blah.

The propel stations near me seem to be pumping 90+ % I have sampled three batches from 2 propel stations now (Huntington Beach and Anaheim) .

This is where i am for first key turn starting down to about 50*F And what the samples look like from these stations: