VF Tuner ECU/TCU Tuning for the GX550 (5 Viewers)

[VF Tuner]

Mine just updated when it started up but you can check for updates within the vf tuner software

We have an issue with our supply on the CAN Connects holding up 3 kits we are very very sorry.
The manufacturer in china who makes the connectors ghosted us after we ordered...
We can't order from toyota directly either
so we are trying as fast as we can to find them.



Regarding the progress bar, I'll sort that out.

 

[VF Tuner]

Update just completed @VF Tuner. Only did one WOT pull but it didn't go into limp mode. The shifting is also noticeable smoother. Great work.

Do you have the AFE / other intakes?

 

[xonn]

Do you have the AFE / other intakes?

@VF Tuner I have K&N drop in filters but they are in the stock air boxes.

 

[Bluegill]

I just flashed with the update - it did go nice & fast. I forgot about all the idiot lights coming on a for a while and I got nervous. Went for a short, few-mile drive and the lights and warnings reset after a few on-off cycles. Seems to drive just fine, I took it easy but I'll get on it next drive.

 

[munkeeboi]

next time, after flashing and before disconnecting the cable, you can go to diagnostics tab within the VFTuner app and reset all DTC's (Diagnostic Trouble Codes) within the Gen 4 boxed section. This should give you a clean start after flashing

 

[Bluegill]

Good to know!

 

[xonn]

@VF Tuner I have K&N drop in filters but they are in the stock air boxes.

@VF Tuner the reason why I mention this is because I did have my GX go into limp mode making a WOT pull with the K&N drop in filters in the stock airbox. This happened on the tune before this one.

Granted I've only made 1 WOT pull on the new pull, but it went well. Just wanted to provide additional context. BTW I also got the "Communication" bar stuck at the end of flashing. I just restarted the tuning software, cleared codes, and was good to go.

Hope this helps.

 

[FellowM3]

Do you have the AFE / other intakes?

I PM'd you

Could i get a response?

 

[xonn]

Additional feedback on the new tune. I know we primarily care about how it runs when you're driving harder, but the part throttle driving is NOTICEABLY more refined. I'm not sure if they're running more ignition timing in this tune, but the GX has an increased sense of urgency with less input.

Fuel economy appears to also be better. My GX is stock other than K&N drop in filters. Color me impressed.

 

[munkeeboi]

@xonn thank you for providing a better description than I could have done regarding this new tune. I don't drive hard very often so the refinements on the lower end of the rpm range are more important to me.

I'll wait for my next fillup to see if MPG changes.

 

[VF Tuner]

I PM'd you

Could i get a response?

I do not have a PM from you on this site
can you email us? support@ovtune.zendesk.com

 

[VF Tuner]

In case you were wondering what is possible with VF Tuners Bigger Turbos.
here we have a V35A Tundra Making 562 WHEEL horsepower / 554 Ft lbs of torque.
Limited to only 260 Load cap (due to lower quality fuel in South America).

FYI, this is about 260 Wheel horsepower gain over stock

With 91 octane US Fuel we target 320 Max Load Cap, with an expectation of over 600 at the wheel on pump gas.

And again, we are offering special pricing, celebrating 250 years of America. (ends July 5th)

Peak boost comes on at about 1800 RPM.
On this particular vehicle boost is limited much more down low due to fuel quality concern.
Our tundra makes over 500 ft lbs by 2200 rpm

 

[munkeeboi]

WOW...wish I had a need for this much HP/Torque, but wow......nice numbers

 

[Ctprelude]

In case you were wondering what is possible with VF Tuners Bigger Turbos.
here we have a V35A Tundra Making 562 WHEEL horsepower / 554 Ft lbs of torque.
Limited to only 260 Load cap (due to lower quality fuel in South America).

FYI, this is about 260 Wheel horsepower gain over stock

With 91 octane US Fuel we target 320 Max Load Cap, with an expectation of over 600 at the wheel on pump gas.

And again, we are offering special pricing, celebrating 250 years of America. (ends July 5th)

Peak boost comes on at about 1800 RPM.
On this particular vehicle boost is limited much more down low due to fuel quality concern.
Our tundra makes over 500 ft lbs by 2200 rpm

Man, I'd love to do this at some point. I've read getting to the turbos is not easy, I'm curious how much install would run through a legit shop.

I'd also be interested to see a before/after dyno. Do you lose power/torque down low with the bigger turbos?

 

[BoostedGX]

In case you were wondering what is possible with VF Tuners Bigger Turbos.
here we have a V35A Tundra Making 562 WHEEL horsepower / 554 Ft lbs of torque.
Limited to only 260 Load cap (due to lower quality fuel in South America).

FYI, this is about 260 Wheel horsepower gain over stock

With 91 octane US Fuel we target 320 Max Load Cap, with an expectation of over 600 at the wheel on pump gas.

And again, we are offering special pricing, celebrating 250 years of America. (ends July 5th)

Peak boost comes on at about 1800 RPM.
On this particular vehicle boost is limited much more down low due to fuel quality concern.
Our tundra makes over 500 ft lbs by 2200 rpm

You have a pic of the engine bay on that V35A with the Turbos .... curios to see the layout

 

[munkeeboi]

You have a pic of the engine bay on that V35A with the Turbos .... curios to see the layout

Should look the same...The turbos just get replaced.

 

[VF Tuner]

You have a pic of the engine bay on that V35A with the Turbos .... curios to see the layout

Will look identical to stock.



Also, the shop finished up at 585 wheel horsepower .

 

[monsieurvo]

Will look identical to stock.



Also, the shop finished up at 585 wheel horsepower .

Can you guys please reply to my email regarding a solution for the Australian wiring situation and having it compatible with the VF tuner?

 

[VF Tuner]

Can you guys please reply to my email regarding a solution for the Australian wiring situation and having it compatible with the VF tuner?

We have a shop in australia using our tools they have a shop GX550 and are sorting wiring testing to find a different connector that works.

 

[monsieurvo]

We have a shop in australia using our tools they have a shop GX550 and are sorting wiring testing to find a different connector that works.

Thank you! Keep us posted