GX550 COBB Accessport Tuner

[rrk]

Cobb came out with their tune and support for the Gx550 and Tundra.

I wonder how this would compare to VF Tuner. The only thing I am hesitant about for VF Tuner is that I never see dyno videos, graphs, or any data backed by their GX550 advertisement. The graph on their website looks to be pulled from the Tundra platform.

My experience with Cobb is good and familiar because my Subaru STI is tuned by Baderbuilt on the AccessPort, and there are so many features you can use to look up real-time car data. The two tunes are similar in price point; I just don't know which one to get for the GX. So far, I believe the VF tuner tune is supposedly untraceable. And the Cobb tune is traceable from my experience because it will flash the ECU.

 

[xjtwo]

Very interested in this, used COBB on my Raptor and had zero issues.

 

[SwainBuilt]

We installed the Cobb Accessport on ours a couple weeks ago. Though our SleeBuilt GX is fairly modified everything went very smoothly. We are running the 91 octane tune and have about 1500 miles on it since the installation.

 

[rocksallday]

We installed the Cobb Accessport on ours a couple weeks ago. Though our SleeBuilt GX is fairly modified everything went very smoothly. We are running the 91 octane tune and have about 1500 miles on it since the installation.

any details? mpg? shifting? ride?

this probably isn't the right place for this, but one of my main concerns is the v35a engine issues and the effects of tunes. would really appreciate a long term ownership update on this thread.
specifically concerned about the low-end torque increase which seems to be (at least part of) the reason we haven't seen many GX engine failures compared to Tundras. or so some youtube videos claim. oil pressure is lower at lower rpm, so lubrication isn't as great.

edit: that is a really amazing build you got there. one day. someday. maybe. i wish.

 

[BoostedGX]

Curious to know how it accesses the ECU

 

[VF Tuner]

Cobb writes custom code which locks the ECU and locks toyota diagnostics out.

Regarding watching data, we have a phone app that is releasing soon that lets you watch data / flash on your phone / etc.

Regarding our development, in comparison to cobb.

• were the first company to ever produce a tune for this engine
• worked directly with Magnuson to develop parts
• have the only bolt on larger turbo kit and have tested the engine to it's maximum safe power limit
• have tested on the non hybrid + hybrid
• have tested in every scenario possible, from the TOP of pike peak to sea level.

The GX550 drivetrain and the Tundra drivetrain is nearly identical...

our tunes produce significantly more power, we also fully tune the transmission, etc,

 

[rocksallday]

Cobb writes custom code which locks the ECU and locks toyota diagnostics out.

Regarding watching data, we have a phone app that is releasing soon that lets you watch data / flash on your phone / etc.

Regarding our development, in comparison to cobb.

• were the first company to ever produce a tune for this engine
• worked directly with Magnuson to develop parts
• have the only bolt on larger turbo kit and have tested the engine to it's maximum safe power limit
• have tested on the non hybrid + hybrid
• have tested in every scenario possible, from the TOP of pike peak to sea level.

The GX550 drivetrain and the Tundra drivetrain is nearly identical...

our tunes produce significantly more power, we also fully tune the transmission, etc,

And you're active on our forum. Keep up the great work. Looking forward for that phone programming.

edit: @VF Tuner can you comment how many miles on your test cars with your tunes at this point? Any concerns with adding too much boost at low RPM, where oil pressures are still lower?

 

[VF Tuner]

And you're active on our forum. Keep up the great work. Looking forward for that phone programming.

edit: @VF Tuner can you comment how many miles on your test cars with your tunes at this point? Any concerns with adding too much boost at low RPM, where oil pressures are still lower?

our test car has about 3 years / 30,000 + miles of tuning on it, half of that with the bigger turbos.
We run it on 26psi.