Hondata

just a quick question, i have just received my hondata flash pro and i have set up a dyno tune but its not for a few weeks yet, i was just wondering how safe is it to use the US Civic SI 2012, Factory Settings tune thats pre loaded in the flash pro software, i would like to play around with some launch control and remove the rev hang in my car in the meantime before my dyno tune,

Does this tune affect fuel in any way or has anyone had any issues with it,
this is my daily driver and i dont exactly want to have anything break on it if i can avoid it, as getting parts during a pandemic is proving to be challenging

The “Factory settings” tune is what Hondata use to call the “stock equivalent” tune, which is basically a stock tune from Honda. That way people have a base file to go back to for any reason, or compare to another tune. It will make know difference to the performance, but you can play with the settings you asked about. Rev hang can be turned off, and you can play with launch control settings.

What performance mods do you have done to the car?

at the moment all i have is a Drop in k & N airfilter, i held off getting anymods and i was told that doing that with out a flash pro would be pointless as these cars are sensitive to change with out a reflash to account for the mod in question, so hondata was my first mod, i will be getting a dyno tune in the next few weeks and running that until i have all the supporting mod i want and i will install them all at the same time and i will re run the dyno tune

Sounds like a good plan. That's going to get expensive with two sessions of dyno tuning. If you're okay with spending the money then it's good safe plan. Please spend the time to find dyno tuner that will tune it properly. I have looked over a few recently dyno tuned cars lately with terrible fuel trims and other issues. So for your sake, find a tuner that will take the time to tune your car properly for you, especially when you're about to spend almost a thousand dollars for tuning sessions.

In your playing with things before your dyno, if you find any knock or any other issues you're concerned about and want some help with let me know. I can help you make things safer for you until you get the dyno if you want.

i think i will do that today and send you a data log just to be safe, i would like to learn this some more but i want to be safe about it, and i appreciate the help.

Would it be prudent to adjust the Overrun Fuel cut delay, i seen the 2 differences between the hondata stock tune and the hondata reflash tune,
In the stock to nothing in these fields has been changed, however in the hondata Reflash tune the values have been changed as follows

Cell 1, 2, 3, 4, 5
90, 90, 90, 50, 50

and the hondata reflash is as follows

Cell 1,2, 3, 4, 5
20, 20, 20, 20, 20

Sounds good. Yeah see what you think and post up a datalog if you want. I am currently working with a guy on a bone stock 2012 as well, you can always try the file I've created with him over a quite a few revisions if you want. Let me know on that.

You will probably find adjusting the overrun fuel cut delay helps drivability a little bit. When the injectors cut off quickly in lower gears it can get a little jerky perhaps. Keeping the injectors from shutting off might help smooth things out a bit. The all 20s values I have heard feedback that it will not be as smooth. I generally change them to 60,50,40,30,30, but the 90,90,90,50,50 should be just fine. Play with the settings and see what you think, sounds like you're curious how it all works. You can't really get into trouble with anything until you start messing with fueling and ignition. Well I guess you can by changing settings that don't need to be changed. So don't dig too far into the rabbit's hole basically. As a bone stock car, or a simple bolt on car, not that many settings need to be changed as far as injectors and stuff. The overrun you can play with, just don't worry about a lot of the other settings you see.

here is a 20 min data from today with a 3rd gear pull

Overall it started off a pretty rich, from the 6 minute mark to 9 minute mark it was better, but still rich. From the 9 minute mark to the 20 minute mark it went very rich, pulling from 11% fuel all the way up to and over 28% fuel.

Your WOT pull in third gear went from a little lean to ultra rich once it got into open loop. So that needs to be addressed as well, along with the part throttle fueling. One other thing, on your third gear pull, you never went wide open throttle (WOT). You hit 90% tplate angle max with a pedal at 71%. When you make a WOT pull, make sure you really get it to the floor ensure the car is WOT. Also check to make sure nothing is hindering the pedal from going to the floor, perhaps a floormat or something could be in the way.

Which tune are you on, the “Factory Settings” file?

Do you want to try the file I have for a stock 2012 Si and see what you think? My file would be a great start, they all usually need a few revisions to get them dialed in because every car is different, but it would be a good start.

yes i am running the hondata factory settings tune, nothing else adjusted but the rev hang and the launch control, everything else stayed the same

is this hondatas way of how the fuel should be on a stock tune or did the fuel maps change some how,

also is there any risk of damaging my engine like this

We can always try the file that you have set and i can run another data log later today and see how it looks

also could you help me set up my flash pro manager to see how your looking at it, or maybe send me you settings file

Gotcha. It is supposed to be a stock file that comes in your car. We can't remove the stock tune and see it in Flashpro manager, it only holds your stock file in your Flashpro for when you want to put it back to stock. Therefore, Hondata supplies a stock file they've extracted so we have something to put into the car in case of a lost stock file, or to reference stock values. From what I understand, Hondata doesn't make any changes to file referred to as “Factory Settings” or “Stock Equivalent” as they used to call it.

There isn't really a risk of hurting anything with it being rich, lean you would want to be more concerned. I don't know where you're located or what climate you have. But climate and octane fuel determine what can hurt the car and what shouldn't. Rich is generally safer than lean in most cases.

I can't attach my display, PM me an email address and I will email it to you. I will attach the base file for you to try so you can see what you think. My display is a little crazy because I do a lot of remote tuning so I set it up differently than some. When you try the basemap, take it for a drive just like you did, but try to get the WOT pull with the pedal to the floor so we can see the WOT fueling really good. Rev hang is already off, I would wait to make your launch control settings until we're done, but that is up to you.

I will try and do another wot pull in 3rd. It's about 11 degrees today and it's raining so. Traction is an issue some times.

I really appreciate the help and don't mind shooting you some cash of you like

Okay sounds good. If nothing else, just drive normal so we can see the part throttle fueling as that is the bulk of the driving you do anyways. No need to be unsafe for a WOT pull. We can get back to that when it's safer. So do it however you feel most comfortable.

No problem, happy to help. If you're happy at the end and want to throw some cash my my way that's cool, if not, no big deal at all.