Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

Firstly, absolutely love 19800. 4 wheel low doesn't buck and is controllable but doesn't feel overly smoothed out. Towing 5klbs is great. Easy to backup and hook up with the trailer. Easy to hold a speed over changes in grade on the highway.

Secondly, a few question. Is there a torque and or horsepower difference between any of the 2.0 beta tunes? Is there even a difference in power between any of the 1.5 tunes? Is it just a change in pedal feeling? Does 91-93 get you more power than 87?

Thirdly, those jumpy "Fun to drive" performance tunes on snow and ice. Has anyone found it hard to control wheel spin? I want my power but I want my pedal to be more than just an on and off switch.

Wishlist, More engine breaking when applying the break.

Finally, HUGE shout out to the DEV and testers. My taco is a joy to drive now!

 

Mat did post Dyno results and higher octane tunes with the right octane fuel do produce higher HP and Torque numbers (consider the RPM range for this)

I could be wrong, but the current 2.0 tunes are octane specific

 

Anyone with 4.88 gears and 33"s experiencing the tune holding 5th too long and dropping down to 3rd instead of 4th? I didn't have this problem on the stock 04A61 tune. Is it still learning?

I'm using the 04A61+-+2.0+EROM+87+-+4.88++Shift+Build+19800 tune

 

My truck is bone stock and on the 87 2.0 tune, but I'm experiencing the EXACT same issue and it's driving me nuts. At highway speeds (~75) the truck completely bypasses 4th gear when rolling on the throttle to maintain speed uphill. It goes from 6th to 5th without issue, then there's a huge dead spot as I continue to slowly add throttle and the truck still loses speed, and then it aggressively jumps the 3rd. Had to flash back to stock because it's obnoxious on my daily drives on the interstate.

I emailed OrangeVirus and Mat said that this is basically the intended behavior - "There is only so much that our tune is capable of, and we cannot get around some of the hardware limits of the truck. The current implementation we have is the only way to have the truck continually maintain 5th or 6th gears at highway speed"

Unfortunately, if this is how the tune is intended to shift I basically lit $700 on fire. Not happy.

 

Kinda feeling the same way. Hopefully the turbos or supercharger are worth it and we can put the tune to use then...

I'm going to give it another 500-1000 miles to hopefully learn to shift to into 4th

 

Let me know how it goes, if it learns I'll flash back. I put over 1k miles on the 1.05.1 tune and it never got better. They had me go to the 2.0 EROM version of the tune and it behaved the same way over ~300 miles, then I gave up and went back to stock for good after going back and forth with Orange Virus on the issue.

I do miss the better throttle mapping and the smoother acoustic valve control transition though. Too bad I can't use the stock shift map with their ECU tuning. Unfortunately the detriments of the crappy shift tables outweigh the benefits.

 

How many miles since tuning?

 

Probably ~1500 miles in total across 1.05.1 and 2.0 EROM

 

If you don't want it going into 4th at the touch of the throttle on the highway there has to be some points in the shift map where 4th isn't requested. Digging deeper into the throttle generally is going to throw you straight into 4th. There is no way around it.


Also this would have been great to tell us early on in the 2.0 development cycle to see what can be done.

 

Seems like shaving 16 pounds of wheel like they apparently did for 2020 (per some other folks in here) and going back to stock tires would make a pretty big difference in perceived performance, even without any other changes. Much less rolling mass.

 

I never had any issue with it shifting into 4th gear, even in stock form. The shifting was pretty decent IMO. I purchased to get a better throttle map and fix the acoustic valve tuning surge, and figured "improved shifting" would be a side benefit. My issue is that with the tune, the truck completely skips 4th gear at highway speeds, making it difficult to maintain a constant speed.

I received my kit on 9/23 so I wasn't part of any of the 2.0 development, I'm just a new customer who had an issue and was basically told there was nothing that can be done.

 

I don't think I specifically said nothing can be done, just nothing right now because we are in the middle of a development cycle

 

That is only on the Pros. Still, it was said that 1lb on a wheel generally feels like 50lb of cargo.

I certainly felt that when I went from 16in 235s to 18in 255s on our volvo wagon. But, I haven't felt that going with 5lb heavier and slightly taller Wildpeaks on the Taco.

I do know that folks rave about going to carbon fiber wheels on the same motorcycle that I have. That used to be a $3,500 buy in, but the folks that got them say that it transforms every aspect for the better.

 

I just went over the mountains back and forth and did not experience what you described.
I climbed 40+ miles in 70+ zone with tons of commercial traffic that called for constant speed changing and the truck never went below 5th nor had issues with dead pedal in this condition. Truck did drop to 4th for reason to pass and consider it normal.
I did experienced a dead pedal once, but it was in previously reported conditions-6th,TC locked. I'm trying to replicated again.
I've been on 19800 87 for about 1300 miles.
I'm also stock ECU4b04

 

Interesting. I'm an 04B31 (04B31+-+2.0+EROM+87+-+Shift+Build+19800). At lower speeds (65) it'll grab 4th. Somewhere in the 70's it stops using 4th gear for downshifts and goes right to 3rd on my truck. I've done ~1500 miles tuned, mostly through VT, NH, and Mass, so lots of hills.

 

The 2019 tune files (current released version of 2.0 that can be downloaded) are not the same as the 04B04

 

You seem to be the only person that has trouble with maintaining speed. My truck does just fine at highway speed with 33s, cap, and about 500# of shit tacked on it

 

Agreed. I towed my boat for 450 miles straight and could hold 65-75mph perfectly in 6th and even got 16-17mpg

Edit: 4.88 11600 tune with 91 octane (aggressive tip-in)

 

Well, not sure what you guys want me to tell you. It's an automatic, it's not like I'm "driving it wrong". Are either of you driving 2019s?

 

I have the same issue with most of the tunes for 04B04. holds 5th too long then drops straight down to 3rd when more pedal is requested but it is almost exclusively while climbing hills. On flat land the 19800 tune is beautiful. Because of the issue on hills my options are to drive in S mode as I've done on every other tune so far since the first tune OV put out (which isn't a big deal for me to do at all) or go back to the 944 tune....my unicorn. The 944 tune has been pure gold for my truck with my setup and under my driving conditions. Specifically it's ability to manage throttle request on hills. . On a grade with a little throttle it'll unlock converter then a little more pedal and it'll kick down to 4th and with a bit more throttle it'll hit 3rd. Predictable every time, no surprise 2 gear drops. I'm certain the newer tunes have more refinements and the official 2.0 when released will be absolute gold (and I'll try it for certain) but as of now, 944 will be my go-to tune for driving hilly territory. Again, this is for my specific truck with my setup under my driving conditions. I'm definitely not telling anyone that 944 is better than any other tune for anyone other than myself, just confirming that I have had the same holding 5th then dumping to 3rd issue. It's tolerable for me on flat ground though and I'd probably be satisfied with 19800 if I drove nothing but flat ground as that tune gives me the best MPG I've ever seen, even with the crazy 2 gear kickdowns.
My setup is 4.88s with 35s and just a little extra weight (300lbs or so) on 04B04
yes, I've been giving my feedback to Matt about things with the beta tunes since 991 (the first 2.0 beta) and also my extreme pleasure with 944