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post #1 of 257 (permalink) Old 01-04-2017, 04:35 AM Thread Starter
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Tundra ECU tuning with Reflash

I gave my spare Tundra ECU to a Tuner name Matt of OVtuned. He has tuned other Toyotas and Lexus', but never knew about our Tundra community. Well he dismantled and decipher the tune in one day. He then wrote a blog. Check it out:
https://www.ovtuned.com/blogs/news/o...ra-development
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post #2 of 257 (permalink) Old 01-04-2017, 11:06 AM
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looking forward to what he can do and for real world results.
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post #3 of 257 (permalink) Old 01-04-2017, 11:29 AM
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Wow, so $300 for a "tune" that peps things up from a factory setup? Sounds reasonable.

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post #4 of 257 (permalink) Old 01-04-2017, 11:36 AM Thread Starter
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Luckily I'm local to his Dyno. I plan to actually finally get a custom dyno tune with a reflash along with a transmission control unit tune for my 2800 High Stall Torque Converter. (You hear that Phil!-lol)
This Friday, he'll have his first N/A Tundra on the dyno, next week he'll have 2 S/C Tundras. I'll post up the blogs after.
He is building up a ROM database for the Tundras..
https://www.ovtuned.com/collections/...nt=32253950028

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post #5 of 257 (permalink) Old 01-04-2017, 01:36 PM
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@Jonny Hotnuts
Here ya go. Give em a holler and see what the factory fuel map is like.


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post #6 of 257 (permalink) Old 01-04-2017, 02:20 PM
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Originally Posted by jbroas View Post
Luckily I'm local to his Dyno. I plan to actually finally get a custom dyno tune with a reflash along with a transmission control unit tune for my 2800 High Stall Torque Converter. (You hear that Phil!-lol)
This Friday, he'll have his first N/A Tundra on the dyno, next week he'll have 2 S/C Tundras. I'll post up the blogs after.
He is building up a ROM database for the Tundras..
https://www.ovtuned.com/collections/...nt=32253950028
Hahahaha!!! I hear that, brother!!! I can't wait to see some second gear scratches that turn into full blown burnouts!


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post #7 of 257 (permalink) Old 01-04-2017, 02:40 PM
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So just thinking, why wouldn't Toyota conservatively modify some of these tables to boost the performance of these engines to stay more competitive? So it's not a premium fuel 91+ truck?
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post #8 of 257 (permalink) Old 01-04-2017, 03:09 PM
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Hey Jim, Thanks for informing me this morning! Appreciate it and will send in my ECU soon!
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post #9 of 257 (permalink) Old 01-04-2017, 03:20 PM
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Quote:
Originally Posted by Brian20 View Post
So just thinking, why wouldn't Toyota conservatively modify some of these tables to boost the performance of these engines to stay more competitive? So it's not a premium fuel 91+ truck?
bingo

they don't want the truck to have to use premium fuel and you know toyota, maximum reliability while being very conservative

That was one turn off a little when I was looking at the 6.2 GM, it needs premium

it's not like it was years ago either where each octane goes up .10 in price, so premium would be .20 more per galling than 87.

they gauge now and charge way more for premium


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post #10 of 257 (permalink) Old 01-04-2017, 04:12 PM Thread Starter
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The 5.7L N/A truck on Friday will actually already have 91 octane in the tank. A base run then tune mod with 91 will be done. We're all anxious for the Before & After dyno numbers results.. Stay TUNED!!
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post #11 of 257 (permalink) Old 01-04-2017, 04:53 PM
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I would be more excited if he could tune out 30% of the torque management. Maybe then I could use more of the power I have when I want

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post #12 of 257 (permalink) Old 01-04-2017, 06:09 PM
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Subbing to see the outcome. If they pick up 10 lb/ft and 20 hp, its cheaper than the BD was... And actually makes gains.


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post #13 of 257 (permalink) Old 01-04-2017, 06:13 PM
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Praise be unto God if they can just turn off the friggin nanides and kill torque mgt like RIjon said. That alone would be worth 3 bills.


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post #14 of 257 (permalink) Old 01-04-2017, 06:19 PM
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Praise be unto God if they can just turn off the friggin nanides and kill torque mgt like RIjon said. That alone would be worth 3 bills.
I can only assume they really upped the torque management on the new truck vs the 2010 I had.

I know they changed the sensitivity/speed of the throttle body to pedal relation. But you would think same power same engine would be about the same quickness @ wot.


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post #15 of 257 (permalink) Old 01-04-2017, 06:22 PM
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I can only assume they really upped the torque management on the new truck vs the 2010 I had.

I know they changed the sensitivity/speed of the throttle body to pedal relation. But you would think same power same engine would be about the same quickness @ wot.
So the new rig has smaller testicles? That sucks. Are they geared the same? I know I would miss my 4.30:1 rear axle ratio if I swapped for a truck with anything numerically lower.


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