Overland Tune on a Tundra

The trans tuning alone is worth it. Don’t go thinking you’ll feel massive power differences. What you’ll feel is a better power delivery.

 

I've had OTT tunes both NA and Supercharged......smooth as butta

 

I don’t have the time yet but everyone who has it says it’s totally worth it.

 

You’ll need to decide if it’s worth it to you, but I say yes. You won’t see big gains in PEAK hp or torque, but the curves should be much flatter and get you more power in a better rpm range. For example, my peak torque only increased about 17 lb ft, but it now makes peak at about 2,900 rpm instead of 3,800. That’s big deal shit there.
Peak hp went up a little under 10, but it’s up a lot more in the lower rpm range.

This means that it pulls way harder in the mid range rpm than before, and still a little more in the high rpm range.

Don’t even get me started on the transmission control improvements. That part alone will make such a difference in drivability.

Pay less attention to the 10 PEAK hp increase and more attention to what the overall program will look like.

 

Do you see all those improvements in the off the shelf version? Or did you do a custom tune?

 

Engine tuning was custom, done on a dyno.

Transmission tuning was done after, on my own. Too hard to dial in a transmission without driving it, and it took me several iterations before I was happy with it for towing as well as daily use.

For daily use only, I’d imagine a canned tune might be close enough.

 

Well, I just booked my reservation for them in May. They are coming to Mo and I sure hope I get the same results, as I am wanting it 95% for the tranny shifts.

 

Finally got my '17 NA done this week, and I got to say what a difference. took care of my TSB update and set me up with a Medium & Spicy (Tow Haul button) OTT tune. The responsiveness is a night and day difference. If you're in Central Florida and on the fence, send him a message, very helpful. And he's give out awesome swag!

 

That makes it much more believable and desirable to me. If it touted huge increase in peak horsepower, I would not believe it at all.

besides what I would really be after is that difference in the torque you mentioned. That would make a huge difference

 

Did you have to sign the release waver so they are not responsible in case it bricks the ECU?

He is scheduled to do mine Sunday morning. That's my only reservation after reading other comments

 

Yes I did.

 

Thanks.

He's supposed to do mine in Montgomery this Sunday

 

I’m scheduled to get the OTT tune in Denver tomorrow. I’m looking forward to seeing how it shakes out.

 

Lets us know your thoughts after. They will be in my neck of the woods next month and I am curious for sure!

 

Seems like it is largely throttle response but if it does that, combined with just a little more torque where we need it and improves shifting then I'll be very pleased

 

i was going to schedule one for this weekend too...but fresh snow means i'll def be skiing

 

I got the mild throttle response settings, took like 6 minutes to get the tune loaded. Truck is still running and ECU isnt bricked, so that's a win.

I'll provide some more feedback once I have some more pedal time.

 

Curious, is it common for the ecu to brick or what are the odds that it happening?

 

It does happen but not common. Usually happens when battery is below 12v and not on a charger. Some happened because loss of signal during the write process. Lots of us change the ecu tune frequently with only a few having issues.

 

Copy, thank you for the info!

 

Just had mine done this morning with Jeff at Relentless Tuning in Alabama

I went with the medium and I am very pleased. Better throttle response. I love the shifting

it was of course slightly more sluggish after I put the 305 32s on last month. This more than compensates for that and IMO makes it noticeably better than when it was new with the factory tires and wheels


very pleased