2016 OVTune Tacoma 3.5L Manual Transmission / Engine ECU Reflash

If you're driving a manual, just rev to 6K when power is needed. It's a Toyota corporate motor. It can handle it.

If the 3rd gen was the same weight as the second gen, it would be faster than the second gen in every aspect.

 

lol, not going to redline my truck just to get ~30hp more for 2 seconds.

 

this is kind of how i define the opposite of driveability. but, to each their own.

 

And you don't have to with this tune. Ever since 1.01b (a ported A/T tune), there's been a noticeable bump in torque from ~1500 to 3300rpm. It's just more enjoyable to drive in that range over stock.

 

If 1.01b is that good, 1.03 must be very nice and refined.

Man, I'm not sure I can wait till march to get this tune.

So, when I do order, do I get PCM flash with the kit and any other necessary software?

My biggest issue is I do not have a windows based laptop lol, so I have been trying to find a relatively inexpensive one to use for this purpose.

 

Checking in Mat.

 

They could easily tweek the newer dual vvti 270hp/278lb-ft tq 1GR on 87 octane from the t4r to gain comparable HP and throw in a 6/7/8 whatever speed transmission with modified gearing and final gearing changes to the axles to appease the EPA gods but remain competitive with the 278hp/265lb-ft tq 2GR-fks Tacoma motor imo. 8hp? I'm sure OVT can squeeze that out with the ECU tune, but would still be chasing any gains they make with the 2gr.

There's no replacement for displacement. Unless you're forced induction. Viva 4.0L!

I'd love to see OVT's output results/gains they can squeeze from the 4.0 (dual vvti preferably) and 3.5 side by side N/A when it's all perfected.

 

I have never ignored a single person on this site until now....it feels good.

 

You should work for Toyota. You could have saved them million in R&D by avoiding the 2GR-FKS.

 

The 1GR gen makes 245 at 5200. The 2GR(7GR) makes ~255 at 5200... and goes on to make more.

The problem is not the engine.

 

Just curious where you found this info?

 

They've already figured it out judging from.the observation that the 2gr-fks in the Lexus IS350 comes in at 311hp at 6600rpm and 280tq. Different tuning, different intake and exhaust manifold design, yet same motor internally. There's always room to improve efficiency, but why did Toyota dumb down the motor for the Tacoma? Only other thing I can note is that Toyota rates engine output on 87 octane and Lexus uses 91 for published ratings.

 

I may have said this here before; I believe the 2GR in the Tacoma is probably the 7GR in the Land Cruiser Prado. (They have all the same specs and Sweers calls the Taco 2GR the 7GR.) The Prado curves are published.

If you don't believe that, look at the first post in this thread. At 5200, HP is down only ~10% from max. Take 10% off published max HP and the 2GR makes more HP at 5200 than 1GR Taco.

 

3.5 Liter 2GR-FKSV6 (278 hp)
https://en.wikipedia.org/wiki/Toyota_Tacoma#Third_generation_(September_2015–present)

I have not been able to find a reliable source for the stock trunk that has dyno specs.

 

...and I don't think we ever will. The Prado has the same dual VVT-iW, D-4S, bore, stroke, compression ratio, red line, HP and TQ at same rpm. The Prado pdf brochure has curves.

Why would they go to the trouble of making a different engine with exactly the same specs?

 

Correct me if im wrong or got lost in my math along the way and used the wrong variable that had no reference, but 5200rpm would have a difference of 13.3333%, lets call it 13%, to 6000rpm. Take 13.3% off the peak 276hp @ 6000rpm to find its theoretical hp output at 5200rpm for the 2gr, and that leaves you with a difference of 35.88hp in 800rpm, lets call it 36 for simplicity. 276-36=240hp @ 5200rpm, 5hp short of your 245hp number for the 1gr. You referred to the 2gr-fks as similar in output to the 7gr so I had to research its rated output which is 276 or 278hp @ 6000rpm from what I could find. Not much about it that I could quickly reference as its only available in China. The 1gr as equipped in 2nd gen tacomas for USDM from what I've found, originally was rated at 236hp @ 5200rpm on 87 octane, which would give the 2gr the edge on output. . In no way am I claiming my final numbers are a true representation of the power output differences between the 1gr and 2gr since I haven't been able to find solid/consistent numbers from more than one source.

How much time do you really spend above 5200rpm to take advantage of that extra 39hp?

Also, this doesn't even include the overhaul the 1grfe got in 2010 with the addition of dual vvti and larger throttle body, along with other minor changes like intake location, maf type and oil filter location. The addition of dual vvti to the 1gr bumped output up to 270hp @ 5600 rpm. Toyota only put them in the t4r and FJ, maybe because both the FJ and t4r are produced in japan and this dual vvti 1gr originates from japan also from what I can tell. Just speculation and pretty much apples to oranges as the dual vvti variant was never included as an option for the 2nd gen Tacoma.

Different markets might be one reason. But for all purposes they do look to be damn near identical. One difference being the 2gr is used in a variety of Toyota/lexus FWD/RWD/4WD/AWD models and the 7gr, that I can tell, is only used in one model thats only available in china whether its RWD or 4WD.

digging a little deeper via the Prado with the 1grfe:
"Toyota Australia retained the 4.0L V6 power unit (Model: GRL150R). For the midlife facelift in June 2015, the power output has increased 5 kW to 207 kW (281 PS; 278 hp) and 381 N⋅m (281 lb⋅ft) of torque."

Its still the 1grfe designation, but toyotas aussie version has similar output numbers to the Chinese 7gr or the similar USDM 2gr-fks.

"The 4.0-liter 1GR-FE V6 was standard paired to a five-speed automatic gearbox. On 24 September 2015, the fourth generation mid-life facelift received a new 3.5-liter V6, the 7GR-FKS to replace the previous 4.0-liter V6. While the engine capacity is lower when compared to the 4.0-liter, the power output remains the same at 206 kW (280 PS; 276 hp) and 365 N⋅m (269 lb⋅ft) of torque"

source: Wikipedia.... I know I know, anyone can edit the info on Wikipedia and is to be taken with a grain of salt for content accuracy.

 

Man, I know these threads get off-topic (guilty).. but why are we discussing the 1GR again? We all know it's a stump pulling LS-like torque monster that choke slams the 2GR in every way. Toyota was dumb to replace it. There's no fuel economy advantage. Who revs their truck above 5200 anyway? Yeah but, the 1GR gets that 1lbs/ft 600 rpm lower. The dual VVTI 1GR has almost as much power. The 1GR was a proven engine that I love and plus I really hate change. The 1GR is a proper truck motor.

Engaging 2nd gen peeps in this of all threads seems self defeating lol. They love it though

I'd rather share my vacay pics and get thread banned for it due to some douche's twisted panties than read this stuff

2016+ 3.5L M/T OVtune thread. 2GR.

Sheesh.

 

Git, you!

Lol

 

I'm just saying the dyno on post #1 of this thread shows a power decrease of only about 10% from max to 5200... or ~250. Eyeballing the 7GR curve, I get ~255. This was in response to someone saying 1GR is better because max HP is ~1k rpm less. (The T4R 1GR has max HP @ 5600 and max TQ at 4400... minivan engine. And when you are getting ~90% of max TQ from ~1800-6200 it is less important what rpm max happens.)

The weakness is in the software, which is why we are all here.

I did have an Uncle Bob.