2016 OVTune Tacoma 3.5L Manual Transmission / Engine ECU Reflash

I don't know for sure, but am trying.

 

I can understand the missed questions with so many posts, etc. It would probably take a full time assistant to answer every single thing at length and still manage to accomplish real work. Lol.

I can also appreciate that he doesn't just blow smoke up anyone's ass either. (That's a compliment by the way.)

 

Looks like @wiljayhi has volunteered with that avatar. lol jk

 

Might be onto something. Maybe he knows a thing or two about a thing or two.

 

Just my way of displaying the fact that my truck is OVTuned and I appreciate everything that Mat has done and is doing. Happy to help out whenever I can.

 

I went out and played around trying to figure out what all this rev hang talk is about. I couldn’t seem to duplicate any sort of hang when off the gas.. maybe it’s a 04B13 issue? I’m still using 04B12

 

incorrect.

 

Try shifting as fast as you can at around 6500rpm in 1st gear, for starters

 

First post, I have none of the issues you mentioned in your post, like you I am interested in the tune but only for more power. My MT is just like any other manual I have driven, though I'm more used to truck trannys without syncros for 1st and reverse. There is not one aspect I would want to change, except more power.

Speed shifting through the gears with our without the clutch as well as down shifting without issue. I don't know why anyone would coast down to a stop in 6th unless one are to lazy to shift, might as well just throw it into neutral. I've seen others say that as well, stay in 6th coming to a stop, might as well just buy an auto if you are going to do that.

You are not going to have any engine breaking if you are going slower than the speed you would normally shift into that gear. 4th gear 20 mph no engine breaking unless you drop it into 2nd or 3rd. I wouldn't expect there to much at all, I would be in 3rd or 2nd by then.

I have no issue with rev hanging in any gear including 1-2 shift that is pulling hard in 1st and dropping into 2nd. No issues with bumper to bumper traffic running in 2nd gear with rpm's holding at around 6-700, never surges in any gear.

I am ready to pull the trigger when the bugs are worked out, as long as my 6MT stays as buttery smooth as it is now. Little more power in 5th and 6th would be nice. Stock truck 2020 DCSBOR. Coming from a Ram 2500 turbo where the turbo actuator went out at 60,000 miles (pathetic).

Why would you want to shift as fast as you can when revving the piss out of 1st gear, this is not a sports car. That is a good way to f**k up any manual transmission. Learn how to shift without using clutch if you want to speed shift.

 

I’m with you @Dnmeistr.. I haven’t had any sort of hang at all. And I literally drove around for a solid 30 min playing with 1st, 2nd, and 3rd trying to see if I could get a hint of it.. not saying y’all aren’t having some sort of issue but I couldn’t seem to duplicate anything. The flywheel is definitely a heavy truck flywheel and not a light sports car flywheel so you don’t get the zippy revs you see in sports bikes but that’s not what you want in a truck.. I’m at a loss. Wish I could be more helpful.

Also, I’m using the 93FOB tune and it’s pretty phenomenal. 6th is definitely more useful. Especially while towing.

 

Mine, even with 1.05FOB RPM slow to come down 1-2 shift.

 

First of all, if you like every aspect of the way your 2020 M/T drives (except maybe power in 5th/6th), I believe it and am happy for you (that's not sarcasm).

Nobody is talking about speed shifting and certainly not floating gears as a matter of course. The slowing to a stop in 6th thing is also not common (I certainly don't do it, I rev match), but it has been mentioned a few times as of late. This is not the source of the engine braking "complaint" WRT DFCO. The actual complaint is - when slowing down in gear (full lift) the amount of engine braking suddenly changes at around 1300-1500 rpm. This is the rpm when the engine comes out of fuel cut-off and actually starts firing again. If you want to feel this yourself, try crawling down a steep decline in 4lo in 1st or second gear when you're trying to maintain a low speed. All of a sudden it's like you lost your brakes and off you go. Then there's towing - but I'll let someone else talk about that.

I'm not sure if the 2020 calibration has changed things, but my '16 and now my '19 have very pronounced rev hang. We're not talking about normal Sunday driving here of course... but we're also not talking about speed shifting either. I'd rather not have to wait 2,3,4,5 seconds for the rpms to drop enough for a smooth shift into the next gear. A timely shift.

If you're looking for noticeably more power in 5th/6th, then you'll probably want to run a 91/93 tune and of course premium gas. The previous 87 tunes don't really add anything in the HP category over TSB updated 16-18 trucks and the 19's, although the FOB files will give you access to more bottom end. They do offer better driveability though (throttle control etc). If you look back through Mat's posts, you can find where he mentions that 87 tunes don't offer any gains, except for the "87 compatible" tune - which I presume is an octane learning file running on premium fuel...
I honestly don't know if 2.0 will change all this, however.

 

Hm I just looked and there is 3 3020s with a 6MT on the lot. I should go test one and see if I notice a difference

actually maybe I shouldn’t because I lack self control and know how this ends lol

 

Having to wait to for the revs to come down after shifting at 6k plus RPM is normal.. I still think what yall are seeing is a result of a heavy flywheel and an idle that’s higher than you’d prefer. Maybe get some video? I hooked up my scan tool and there were no blips of fuel to cause a hang from what I could tell on my truck.

 

Considering mat said he found what is causing this in the ecu code, I think I’ll go with it’s a code thing.

 

this. I’ve been considering posting a video so you can see the ghastly rev hang when up top, just need to upload some real weird shit to pornhub to free up space, as the rev hang generally lasts about 45 minutes, so need a couple Gigs. More to follow.

Anyone touting that rev hang is “all in your heads mannnnn” is being cunty. The shit is real per OVTune guy and dozens, if not hundreds of thousands of TW users with actual transmissions reporting such.

 

Lol, if you want to experience the ECU fucking with how fast rpms fall, try this while stopped/clutch in (hot engine):

Rev it to approx 1500-2000 a couple of times and note how fast the rpms fall;

Rev it to 2500 and check it again. It's faster to fall (counter intuitive with the flywheel mass argument), and when it falls to approx 1300 you can see a pause and feel the engine catch itself.

 

yes rev hang via ECU is real.
But lets not get wild. If you clutch in at 6k it's not going to drop to idle in half a second.

 

I just want it to drop to like 3k in less than 5 seconds lol

 

makes it real awkward when I’m screaming Ferrari noises out the window. Excited for 2.0.