DIY Rom tuning for exhaust pops and backfires W/ romraider

[alchemy]

Has anyone tried this and gotten it to work on a completely stock exhaust system? :O

[guybo]

The OEM muffler will completely kill any sound you get. I did it with the OEM system and a Berk muffler delete with the cats gutted and it worked great. I don't know how much sound you'll get with the cats intact- you'd damage the cats eventually anyway.

[Totalrecall]

Originally Posted by alchemy

Has anyone tried this and gotten it to work on a completely stock exhaust system? :O

Yes i tried it on a stock header, catback n1.... It works somewhat, Not anywhere near enough to keep tune and burn stock header though lol. Getting catless will for sure be fun though

[liu875684119]

Originally Posted by cwvisual

Had this same issue. I tried to edit the xml and got the second row added but it did not run properly.

Just edit that row and ignore the other (since you don’t have it). I played it safe and began retarding at higher rpms since we don’t have a second row for startup temperature. Just don’t let it rev that high while your engines warming up.


Sent from my iPhone using Tapatalk

Hi, I am currently in OFT stage 1 with the backfire tune, and I am trying to implement the off-throttle thing. Mine is a D00D 6AT version. However, when I open the bin file in Romraider, I cannot locate the Fueling--Overrun folder. And the table for Base time idle(In-gear) is really strange.
https://imgur.com/1sfuqLd
Is this file broken something? I did flash it in my car before and it was fine.


Thank you!

[elBarto]

Originally Posted by liu875684119

Hi, I am currently in OFT stage 1 with the backfire tune, and I am trying to implement the off-throttle thing. Mine is a D00D 6AT version. However, when I open the bin file in Romraider, I cannot locate the Fueling--Overrun folder. And the table for Base time idle(In-gear) is really strange.
https://imgur.com/1sfuqLd
Is this file broken something? I did flash it in my car before and it was fine.


Thank you!

Update your definitions, use Wayno's or Kodename47 defs. The OFT's are outdated. Unless you really know what you are doing do not edit your definition, there is a chance that you brick your ECU.

[liu875684119]

Originally Posted by elBarto

Update your definitions, use Wayno's or Kodename47 defs. The OFT's are outdated. Unless you really know what you are doing do not edit your definition, there is a chance that you brick your ECU.

Thanks for the information! Do you know where to find those definitions?

[steve99]

Originally Posted by liu875684119

Thanks for the information! Do you know where to find those definitions?

If your using OFT its not going to be that easy as the defs those guys did are for B01D not D00D.


If you had tactrix/ecuflash you could just use B01D rom and def.


Otherwise your doing to need a hacked rom and def to fool oft


defs are here but they are incorrect calid for you


http://www.ft86club.com/forums/showp...&postcount=411

[steve99]

Originally Posted by Evangelion

So I've tried everything regarding the Base Timing B map, and my car still does not produce any popping. My car is a 2017 86 if it matters.

My setup is N1, Tomei UEL, and a Invidia catless nonres FP.

Can't figure this out.. anyone mind chiming in?

Should pop fine doing just base B are you putting in negative numbers ??


you will need to feather throttle on overrun for more pops

[Clipdat]

Nice username.

Originally Posted by Evangelion

So I've tried everything regarding the Base Timing B map, and my car still does not produce any popping. My car is a 2017 86 if it matters.

My setup is N1, Tomei UEL, and a Invidia catless nonres FP.

Can't figure this out.. anyone mind chiming in?

[bababooey]

@guybo - u still running this feature? did messing with the values ever change anything?

ive got -6 plugged in down the line in first column. while i usually get a nice pop (not shotgun bang) between upshifts, the popcorn off throttle is growing old, especially in first in parking lots. stock FP, aftermarket all components.

anyone know of a way to retain the upshift pop without going catless FP?

[guybo]

I kept dialing back the timing (retarding it less) until I got the sound to where I wanted it. I think I actually got into positive territory before it was unobnoxious enough to run. I wanted burbles, not pops or shots.

Right now I'm on the pretty much stock Stage 2, but I still keep the other tune in my back pocket, I may go back

[wasabiseaweed]

So right now I have -15 in the .15 column and I get some pretty solid burbles, though I want gunshot style pops. Should I go down to -5? For some reason the louder pops are completely unpredictable...

I have a Borla UEL, invidia resonated catless front pipe, and an n1, though my pops aren’t as ridiculous as I want them ��.

[bababooey]

ive got -6 and similar results to yours on decel. no shotgun blasts, but a nice pop on most upshifts. im willing to give up the burbles for a single pop.

[guybo]

Are you guys catless? Because even at -5 I got gunshots sometimes. Hell at -9.96 I got AK47 gunfire!

I went back and re-did my tune (changed FFS and LC too) and I changed the B table some and I'm popping again. not a lot of burbling though (my new Works axleback really changes the sound from when I had a Berk dual exit). It sounds good now.

Between 2800-4000 RPM I advanced the timing because in that range it gets obnoxious