05-02-2024, 12:13 PM
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#1
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Join Date: Jun 2017
Location: Nelson BC and Ellensburg WA
Posts: 138
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Member
Join Date: Jun 2017
Location: Nelson BC and Ellensburg WA
Posts: 138
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Who is source of truth for the tunes?
Are there multiple or one that develops the tunes for the vendors?
I've been waiting for the TCU tune to get finished so my 14 TE can get a "full" tune vs just the engine, as a VERY important part of tuning for weight, bigger tires, SC, etc, is that the transmission shift points are aligned with so that there is less gear hunting and strain on the transmission from shifting at the wrong points.
Does anybody know who is developing these tunes? I know the TCU tune portion has been holding a lot of tuners back from even offering a tune for the mid 5th gens since you're not really getting the full tune, just engine.
Info or Thoughts? Thanks
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Last edited by Okusputokus; 05-02-2024 at 12:17 PM.
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05-02-2024, 01:39 PM
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#2
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Join Date: Feb 2018
Location: Castle Rock, CO
Posts: 781
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Member
Join Date: Feb 2018
Location: Castle Rock, CO
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Quote:
Originally Posted by Okusputokus
Are there multiple or one that develops the tunes for the vendors?
I've been waiting for the TCU tune to get finished so my 14 TE can get a "full" tune vs just the engine, as a VERY important part of tuning for weight, bigger tires, SC, etc, is that the transmission shift points are aligned with so that there is less gear hunting and strain on the transmission from shifting at the wrong points.
Does anybody know who is developing these tunes? I know the TCU tune portion has been holding a lot of tuners back from even offering a tune for the mid 5th gens since you're not really getting the full tune, just engine.
Info or Thoughts? Thanks
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VFTuner is the main base platform used for custom tuning the older 5th gens. I don't believe they have cracked the TCU on older gens which is what is holding things up there. They have cracked the 2020+ TCU's.
The actual vendors selling the tunes are custom tunes done using VFTuner. They all differ slightly depending on who/how they did the tuning.
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2018 TRD ORP w/ Magnuson
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05-03-2024, 12:39 AM
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#3
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Join Date: Jan 2013
Location: vicksburg ms 39183
Posts: 215
Real Name: Adam
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Member
Join Date: Jan 2013
Location: vicksburg ms 39183
Posts: 215
Real Name: Adam
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I doubt its still available but i bought a APR X-1 ECU, Allan Phillips Racing. I had it on my 2008 1GR-FE and took it off before i sold it. Its a stand-alone that replaces your stock computer. You have full reigns to do anything you want, change trans shift points, pressures, RPM, fuel, timing, all sorts of cool things. Its even got 2-step launch control and traction control you can program in for hard launches.
yep, APR website is down, and for sale, so i guess they went out of business. I still have the ECU and harness and stuff, may use it one day down the road.
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2005 Tundra DC limited + 2008 4R Urban Runner + 2023 4R TRD Sport
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2008 Tacoma TRD Sport DC TRD supercharged + 2012 4Runner Limited
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05-03-2024, 09:55 AM
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#4
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Join Date: Sep 2014
Location: Mesa Arizona
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Real Name: Neal
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I went with the OTT tune since they just released the full engine and trans tune for the older 5th gens. It's VF based currently but they used to use HPTuners.
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2012 SR5P 4x4, 2018 TRD Pro front bumper conversion, Auxito LED head light bulbs, Ironman 4x4 Nitro lift with OME 888X front springs, RSO Suspension upper control arms, RSO Suspension prototype skid plates, DX4 Beast wheels, led ditch lights and brackets from Amazon, blacked out emblems, Victory roof rack, CTH ladder, more to come. Previous Rigs. 1997 SR5 4x4 no lockers, Trail Gear sliders, OME 881 890 lift and shocks, Magnaflow muffler, Airaid Jr intake, CBI ditch light brackets, Ebay led spot lights, 265/75R16 AT tires. 1996 Tacoma TRD Sport 4x4 2.7L MT bone stock on 32's.
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05-03-2024, 10:22 AM
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#5
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Join Date: Jan 2013
Location: vicksburg ms 39183
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Real Name: Adam
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Member
Join Date: Jan 2013
Location: vicksburg ms 39183
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Quote:
Originally Posted by AZ4Running
I went with the OTT tune since they just released the full engine and trans tune for the older 5th gens. It's VF based currently but they used to use HPTuners.
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HP Tuners is getting bigger and bigger and better and better. I know guys used to use them on GM gas burners, then diesels, now turbo cars, and even ATV and UTV turbo applications now. Apparently the newer stuff allows you to do tons and tons of tuning. I guess its all about the tuner being able to hack into the ECU to rewrite the programs, or piggyback on top of the OEM programming.
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2005 Tundra DC limited + 2008 4R Urban Runner + 2023 4R TRD Sport
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2008 Tacoma TRD Sport DC TRD supercharged + 2012 4Runner Limited
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05-04-2024, 11:22 AM
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#6
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Join Date: Nov 2016
Location: Boise
Posts: 164
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Member
Join Date: Nov 2016
Location: Boise
Posts: 164
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I have the piggyback unit for the supercharger. It is self learning and I have had no issues.
Performance Electronics - Underdog Racing Development
It is the uconn product.. out of stock of course 
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