Official OpenFlash Tablet FA20 Tuning Tech Discussion Thread

[Shiv@Openflash]

Originally Posted by steve99

hi shiv just updated ofm to 1.07 and updated oft then template file 123 logging seems fine but noticed graph display of parameters does not seem to work standard dispaly ok.

dis i stuff it up or a bug ?


thanks
@shiv@vishnu

In the graphical display, all the channels are deselected by default. So you won't see any graphics until you actually enable the channels you want to be graphically active. You do this by touching the channel names.

[steve99]

Hi @shiv@vishnu

With the new logging noticed a slight amount of knock in 2000-3000 rpm range looks like on intial throttle application.

knocks my IAM to 0.9 for a short period.

can see it in this log

http://datazap.me/u/steve99/mountain...7-8-9-10-11-12

is it worth pulling a bit of timing in this area say 0.25 or so degrees. What would be best table to pull it from

Thanks

[cjsporl1996]

I finally got the realtime display working again

With the new data logging features will it record more than 12 channels because I know only 12 can be viewed on the realtime display.
@shiv@vishnu

[Shiv@Openflash]

Originally Posted by steve99

Hi @shiv@vishnu

With the new logging noticed a slight amount of knock in 2000-3000 rpm range looks like on intial throttle application.

knocks my IAM to 0.9 for a short period.

can see it in this log

http://datazap.me/u/steve99/mountain...7-8-9-10-11-12

is it worth pulling a bit of timing in this area say 0.25 or so degrees. What would be best table to pull it from

Thanks

You could either pull it out of the main ignition map (B) or the ignition advance map. Either way same result

[Shiv@Openflash]

Originally Posted by cjsporl1996

I finally got the realtime display working again

With the new data logging features will it record more than 12 channels because I know only 12 can be viewed on the realtime display.
@shiv@vishnu

12 channels can be logged at the same time. So you just need to pick which channels you want for what you are trying to monitor. Logging all available channels at once would bring sampling rate down to a crawl. With the 12 channel max limit, sampling rate remains 12-14 samples per sec.

[continuecrushing]

I need help with flat foot shifting and launch control. I currently have both setup right now, but there are two issues that keep coming up.

The first, is launch control. I currently have it set at 4k rpm, and set to disable at 10mph. If I am stopped in the car, with the car in neutral (not pushing on the clutch) and I step on the gas (wot), it goes straight to 4k and sits there...which is what it should do, however, it does this whether or not I am stepping on the clutch-I though LC should only be enabled when full throttle AND stepping on the clutch. The only potential issue here (I think) is that I can't be cool and rev to 7k while in neutral. Pretty minor issue. However, when I'm cruising on the highway (going, say 60pmh) and I step on the clutch and floor it, the rpm's go to 5k(which it should, since the way launch control is configured in the computer by redline (minus) XXXX)-but, I'm going over 10mph, so why did it engage?. Again, while on the highway If I dont step on the clutch, and I floor it, the car will rev to 7k. SOOO...Isn't this supposed to be the way the car/rpm's respond when I'm stopped-and not on the highway? When I'm stopped or below 10mph, it should allow me to rev to 7k, unless I am stepping on the clutch, and then it should go to whatever my preset launch rpm is, and if I'm going over 10mph, it shouldn't engage at all.

The second issue is bigger for me (but I think it has to do with launch control). I have flat foot shift/wot shift/no lift shift enabled, and there are two things that affect me. The first, is when going wot and shifting. If I'm approaching 7k rpms, and I upshift to the next gear, there is a pause in power (which it should), but then a .5 second delay or so before power comes back on. Great, thats what it should do. HOWEVER, during this time the car drops to 5k...which brings me back to my launch control issue. Because launch control doesn't seem to be disabled over 10mph, when I flat foot shift, the car thinks it should be in "launch mode"(because it see's full throttle and depressed clutch) and brings the rpms to 5k (and yes, I understand my rpms will drop while shifting lol) but it makes the engine go from 7k rpms, to 5k rpms to whatever rpm based on my gear and speed. This makes for a pretty jerky wot shift. I also run into this issue when downshifting before a turn. For example, I'll be in 3rd gear full throttle, and as I approach the corner, brake, clutch, blip the gas and downshift to 2nd, release the clutch and go back to wot. Once I got wot in 2nd, there is a .5 or so second delay before power is delivered-leading me to think its an issue with flat foot shift enabled, or the launch control issue I touched on before. This is an issue because the power gets applied at a different time than I expect, and will occasionally upset the balance of the car.
Sorry for a long post/semi confusing questions, but hopefully someone can help me out on this topic. I realize this might be confusing, but its a weird glitch/issue and I dont know how else to explain it.
@shiv@vishnu, @Rombinhood@OpenFlash

[regal]

Originally Posted by steve99

Hi @shiv@vishnu

With the new logging noticed a slight amount of knock in 2000-3000 rpm range looks like on intial throttle application.

knocks my IAM to 0.9 for a short period.

can see it in this log

http://datazap.me/u/steve99/mountain...7-8-9-10-11-12

is it worth pulling a bit of timing in this area say 0.25 or so degrees. What would be best table to pull it from

Thanks

I'm going to challenge Shive a little here. Tax return coming and want to buy the OFT but I've been in contact with most all the best tuners and only a few have fixed this, I personally think its the achille's heal of the FA20 EFI/DI.


Buying this I would really want the tip in knock significantly reduced.

[Shiv@Openflash]

Originally Posted by regal

I'm going to challenge Shive a little here. Tax return coming and want to buy the OFT but I've been in contact with most all the best tuners and only a few have fixed this, I personally think its the achille's heal of the FA20 EFI/DI.


Buying this I would really want the tip in knock significantly reduced.

I think this has more to do with Steve's fuel quality than anything else. We've been testing pretty exhaustively on 91oct (ROM+MON/2) and I have not witnessed this issue ourselves. That is not to say that custom tuning individual cars is not recommended for cars that exhibit this.

[cjsporl1996]

I am interested in what size pulley you were using when you were tuning the vortech test car. And if openflash will support smaller pulleys. I am asking because @nelsmar is switching the pulley he has on now with the factory one. Which brings another question if you support smaller pulleys eventually you will max out the MAF. I would think speed density would fix this issue.
@shiv@vishnu @jamesm

[regal]

Originally Posted by shiv@vishnu

I think this has more to do with Steve's fuel quality than anything else. We've been testing pretty exhaustively on 91oct (ROM+MON/2) and I have not witnessed this issue ourselves. That is not to say that custom tuning individual cars is not recommended for cars that exhibit this.

So if I end up with a Tippy you can support from CA (I'm in PA.)

[Shiv@Openflash]

Originally Posted by cjsporl1996

I am interested in what size pulley you were using when you were tuning the vortech test car. And if openflash will support smaller pulleys. I am asking because @nelsmar is switching the pulley he has on now with the factory one. Which brings another question if you support smaller pulleys eventually you will max out the MAF. I would think speed density would fix this issue.
@shiv@vishnu @jameson

We are using the standard 9-10psi pulley with our OFT300 kit/tune. If you are at sea level, I wouldn't necessarily recommend running smaller pulleys. Those at altitude can get away with it since they start off at a pressure disadvantage anyway. At sea level, the standard pulley gives plenty of overhead to run more boost (i'd guess 12-13psi). Definitely more than I would suggest running on pump gas.

[Shiv@Openflash]

Originally Posted by regal

So if I end up with a Tippy you can support from CA (I'm in PA.)

Yes certainly.

[jamesm]

Originally Posted by cjsporl1996

I am interested in what size pulley you were using when you were tuning the vortech test car. And if openflash will support smaller pulleys. I am asking because @nelsmar is switching the pulley he has on now with the factory one. Which brings another question if you support smaller pulleys eventually you will max out the MAF. I would think speed density would fix this issue.
@shiv@vishnu @jamesm

you'll be fine until you decide to go e85, at which point you'll probably need sd. maybe not, but likely. i know the vortech e85 cars i've seen have all used a hybrid setup, not sure if it was out of necessity or just because sd is better at WOT. personally i use sd hybrid on every FI tune i do regardless of whether or not it's strictly necessary. it's just better for WOT (more calibration points than a MAF).

[Shiv@Openflash]

Originally Posted by jamesm

you'll be fine until you decide to go e85, at which point you'll probably need sd. maybe not, but likely. i know the vortech e85 cars i've seen have all used a hybrid setup, not sure if it was out of necessity or just because sd is better at WOT. personally i use sd hybrid on every FI tune i do regardless of whether or not it's strictly necessary. it's just better.

It's better for you, not necessarily better.

Curious... do the Vortech cars running on E85 have upgraded injectors/fuel pump?