DIY Rom tuning for exhaust pops and backfires W/ romraider

[D_Thissen]

Originally Posted by Totalrecall

Is this normal, My Base timing idle in gear above speed threshold only goes to 1800, VS pic above. And all my edits are grey.... Is it safe to continue?




V4.01 tune with definition from @elBarto

Yep that's normal, you just have to rescale that table.

[jerryzilla]

Originally Posted by MrStickers

Got a video?

[MrStickers]

Originally Posted by jerryzilla

Sounds great! Didn’t change initial enrichment?

[jerryzilla]

Originally Posted by MrStickers

Sounds great! Didn’t change initial enrichment?

i think i changed it to 1.8

[hestekinj]

Thought I would post a couple quick videos I took last night. Shot with a gopro, running an external mic mounted to the rear license plate. I'm currently running the 'overrun' method using the values that Vin posted a while back

+10 @ 2500
+5 @ 3500
+2.5 @ 4500
0 @ 5500

https://drive.google.com/drive/folde...LQ?usp=sharing

Pretty happy with the results, although I might try something like 5 or 6 @ 2500, to get a little more burble in lower RPM. With my exhaust setup, you have to rev it out quite a bit to get the good burbles. I'm running a Tomei UEL, stock over/front/mid, and a Topspeed pro1 axle back.

It's worth noting that for most of these I was also feathering the throttle as it seemed to produce more burbles.

[murdoc]

Anyone know why only this table would be screwed up?

All my files look like this with the v2 and v4 roms and open flash definitions.

Just this one table that I've noticed it on.

[steve99]

Originally Posted by murdoc

Anyone know why only this table would be screwed up?

All my files look like this with the v2 and v4 roms and open flash definitions.

Just this one table that I've noticed it on.

The definition file is incorrect, do not edit that table that shows that corruption. else you may need a new ecu :-).




use the defs here.


http://www.ft86club.com/forums/showthread.php?t=126180


you will need to mod the def id strings to suit your V4 tune calid


DO NOT use the V4 defs on V2 tunes in USA

[D_Thissen]

Originally Posted by D_Thissen

I'm running this setup right now: +10 @ 2500, +5 @ 3500, +2.5 @ 4500, 0 @ 5500.

Some quick dashcam footage.
[ame="https://www.youtube.com/watch?v=aHKfhTpvFVI"]FRS Exhaust - YouTube[/ame]

[Hella Basa]

Originally Posted by elBarto

I think those are still the old def's of the v1.x tunes. Since then alot of tables have been discovered.



This is a B01C:
B01C V4 def
But it's probably the same as bababooey's upload.
Same principle, only for V4 tune and remove any other B01C def.

Do I need to use that specific B01C def? because the one that comes in with the original v4 have the overun fueling labeled as ALPHA

EDIT: I read through the thread and found my answer. I didn't like the throttle version because it was too jerky
So far I have copied everything. I will try tomorrow! Thanks!

[redhalo]

Originally Posted by murdoc

Anyone know why only this table would be screwed up?

All my files look like this with the v2 and v4 roms and open flash definitions.

Just this one table that I've noticed it on.

Originally Posted by steve99

The definition file is incorrect, do not edit that table that shows that corruption. else you may need a new ecu :-).




use the defs here.


http://www.ft86club.com/forums/showthread.php?t=126180


you will need to mod the def id strings to suit your V4 tune calid


DO NOT use the V4 defs on V2 tunes in USA

I have the same table as above, but my understanding is that I cannot use those defs as I have a 2017 (K00D). Are the included defs for K00D incomplete?

[steve99]

Originally Posted by redhalo

I have the same table as above, but my understanding is that I cannot use those defs as I have a 2017 (K00D). Are the included defs for K00D incomplete?

Download latest tune pack from oft it may fix def problem

[redhalo]

Originally Posted by steve99

Download latest tune pack from oft it may fix def problem

Is there one more recent than 4.03, that's what I have.

[steve99]

Originally Posted by redhalo

Is there one more recent than 4.03, that's what I have.

I dont think so the def must be wrong so dont change those tables

Ill have a look when im back from china in a few days

[tomm.brz]

shiv's v4 defs have some broken tabs and are incompleyr!!
use the defs steve provided to us, they are perfect