1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Supercharged my 2019 Toyota Tundra Platinum

Discussion in '3rd Gen Tundras (2014-2021)' started by BoWat, Apr 28, 2021.

  1. Apr 28, 2021 at 5:28 AM
    #1
    BoWat

    BoWat [OP] New Member

    Joined:
    Apr 27, 2021
    Member:
    #62367
    Messages:
    6
    Gender:
    Male
    Vehicle:
    2019 Toyota Tundra Platinum
    2.5 Factory Series Coil-Over Reservoir Shock, Fox 2.0 Reservoir Shock, Icon UCA, TRD Dual Exhaust, AMP Research Power Step, Method Wheels 20X9, Cooper AT3 XLT 305/55R20, Magnuson Supercharger
    Just sharing information.

    I waited almost two years for the software to be ready for the 2019 Tundra Magnuson Supercharger. I was going to trade in for a 2021 model but thought about having to wait again. I finally got it installed :bananadance:. The first thing I noticed was my cruising range went from 420 miles to 580 miles :bananadance:. I live about 50 miles from the shop that installed the sc. When I got home I noticed my average mpg was 21.7. I was getting 14+ mpg prior. I was totally surprised by the increase. My truck is also my daily and going about town I average about 19 mpg. I believe I could get a bit better mpg but I think because it's new I do try to hear the supercharger kick in :curls:.
    You do have to use premium gas 91+ octane and we have 93 here. I am just very happy with my current set up :).
     
  2. Apr 28, 2021 at 5:32 AM
    #2
    Saltyhero13

    Saltyhero13 Throbbing Member

    Joined:
    Aug 12, 2020
    Member:
    #50704
    Messages:
    1,004
    $#!+ Posting, Somewhere, USA
    Vehicle:
    2020 040 1794
    From what I understand you'll have to hand calculate your MPGs
     
  3. Apr 28, 2021 at 5:33 AM
    #3
    Kayaking Tundra

    Kayaking Tundra New Member

    Joined:
    Jan 21, 2021
    Member:
    #57945
    Messages:
    52
    Gender:
    Male
    First Name:
    Chris
    Vehicle:
    2019 White Toyota Tundra TRD PRO
    Interested in the long term viability of the supercharger.
    I’ve never had a supercharged vehicle. But I’d assume better mpg, more passing power and a way cooler sound are all the benefits.
     
  4. Apr 28, 2021 at 5:34 AM
    #4
    BTBAKER

    BTBAKER HOW CAN I GET RID OF MY NEW MEMBER STATUS?

    Joined:
    Nov 26, 2017
    Member:
    #11185
    Messages:
    4,320
    Gender:
    Male
    First Name:
    Brad
    Castle Rock
    Vehicle:
    2017 Tundra Limited
    Yea, whatever on the MPGs. Does it haul ass?:rofl:
     
    ColoradoTJ, ThcAk, RitcheyRch and 7 others like this.
  5. Apr 28, 2021 at 5:35 AM
    #5
    nobodyintexas

    nobodyintexas New Member

    Joined:
    Jun 22, 2020
    Member:
    #48303
    Messages:
    28
    Gender:
    Male
    First Name:
    2020 1794
    Vehicle:
    2020 White 1794 Tundra
    I concur with Salty...the stock computer is caddywhompus with the additional air flow.

    with that said...a light foot should get you similar mileage.

    My Harrop is getting made this week, per Harrop. end of May for my install. until then, I will live vicariously thru y'all.
     
    Saltyhero13, Black Wolf and BTBAKER like this.
  6. Apr 28, 2021 at 5:35 AM
    #6
    BTBAKER

    BTBAKER HOW CAN I GET RID OF MY NEW MEMBER STATUS?

    Joined:
    Nov 26, 2017
    Member:
    #11185
    Messages:
    4,320
    Gender:
    Male
    First Name:
    Brad
    Castle Rock
    Vehicle:
    2017 Tundra Limited
    Also, welcome from CO and congrats! I’ve always wanted to SC.
     
  7. Apr 28, 2021 at 5:40 AM
    #7
    Black Wolf

    Black Wolf Got RF/Microwave? CALIT4U

    Joined:
    Apr 20, 2014
    Member:
    #378
    Messages:
    33,569
    Gender:
    Male
    First Name:
    Matt
    Aurora CO
    Vehicle:
    2014 Blaaaaack, 5.7L DC Limited TRD 4X4
    Zone UCA's, Fat Bob's Vated, Pro Form Fab shackles, Patagonia M/T's, Ranch Hand Grill Guard, RC steps, SDHQ AIP relocation kit, RetraxONE MX, Jomax ABS armor
    Kuul beans! Welcome from Colorado
     
  8. Apr 28, 2021 at 5:56 AM
    #8
    timsp8

    timsp8 Member

    Joined:
    May 11, 2018
    Member:
    #15231
    Messages:
    2,470
    Gender:
    Male
    First Name:
    Tim
    NY
    Vehicle:
    2018 Tundra Limited Crewmax
    Every time I unhook my battery, the computer resets and my dte goes up. It quickly goes back down after a tank or so. It would do it even faster if I was SCed.
     
    Saltyhero13 and tundrasportinMA like this.
  9. Apr 28, 2021 at 6:22 AM
    #9
    Saltyhero13

    Saltyhero13 Throbbing Member

    Joined:
    Aug 12, 2020
    Member:
    #50704
    Messages:
    1,004
    $#!+ Posting, Somewhere, USA
    Vehicle:
    2020 040 1794
    https://www.tundras.com/threads/supercharger-long-term-reliability.11689/page-5#post-1771590

    I think there is a thread discussing reliability, if not it's discussed in one of the many recent S/C threads. Some folks have them on their vehicles for 100K to 200K plus with no problems. I think a recent post revealed one member is having oil consumption issues at about 150k.
     
    ZappBrannigan, ThcAk and Terndrerrr like this.
  10. Apr 28, 2021 at 6:27 AM
    #10
    Shuffler

    Shuffler New Member

    Joined:
    Sep 11, 2020
    Member:
    #52070
    Messages:
    95
    Gender:
    Male
    NW Montana
    Vehicle:
    2011 CrewMax 4WD
    So I'm waiting for the next gen truck to come out ... that TTV6 engine is compelling, but the way things are going it's probably gonna be a $60-70k truck. For the money I'm thinking I'd come out ahead just spending $10k to put an SC on my '11 (and it's gonna sound a helluva lot better too).
     
    LuvniForce and Saltyhero13 like this.
  11. Apr 28, 2021 at 6:39 AM
    #11
    timsp8

    timsp8 Member

    Joined:
    May 11, 2018
    Member:
    #15231
    Messages:
    2,470
    Gender:
    Male
    First Name:
    Tim
    NY
    Vehicle:
    2018 Tundra Limited Crewmax
    I had one in my 2010. Put it on around 10k and traded the truck in at about 94k. Only issue I had was the coupler kept rattling. I replaced it twice but it kept doing it. A shop suggested I do a rebuild on the sc, but I traded it before that.
     
    ThcAk and Saltyhero13 like this.
  12. Apr 28, 2021 at 6:45 AM
    #12
    nobodyintexas

    nobodyintexas New Member

    Joined:
    Jun 22, 2020
    Member:
    #48303
    Messages:
    28
    Gender:
    Male
    First Name:
    2020 1794
    Vehicle:
    2020 White 1794 Tundra
    I love hearing dyno videos of supercharged tundras. makes a exponentially better rasp.

    It's my daily driver so initially I'll keep it at 6-7 psi. stage 1 Harrop.

    If I can get visibility on internal components ability to handle Stage 2...I can't see me NOT moving up.
     
    Platinum714, Saltyhero13 and Shuffler like this.
  13. Apr 28, 2021 at 8:54 AM
    #13
    Warreng

    Warreng New Member

    Joined:
    Feb 23, 2017
    Member:
    #6495
    Messages:
    496
    Gender:
    Male
    You will wonder how you ever went without one!
    My experience is city driving mpg are terrible.
     
    Saltyhero13 likes this.
  14. Apr 28, 2021 at 9:06 AM
    #14
    Crunch527

    Crunch527 Brute Force and Ignorance

    Joined:
    Nov 1, 2016
    Member:
    #5049
    Messages:
    512
    Gender:
    Male
    Iowa
    TRD Supercharger/BAM
    Same situation on my 2014 when I had SC installed.
     
  15. Apr 28, 2021 at 9:11 AM
    #15
    BigAl

    BigAl New Member

    Joined:
    Apr 16, 2019
    Member:
    #29182
    Messages:
    35
    Gender:
    Male
    First Name:
    Alan
    Vehicle:
    2014 Black Tundra SR5
    :worthless::yay:
     
    TWJLee and 406Michael like this.
  16. Apr 28, 2021 at 9:37 AM
    #16
    HulkSmurf14

    HulkSmurf14 ...Weighted Average...

    Joined:
    Aug 9, 2019
    Member:
    #34377
    Messages:
    699
    Gender:
    Male
    Vehicle:
    2014 Tundra Limited
    Tastefully enhanced...
    My DIC shows 19.2mpg but hand calc'd it's actually 14.1mpg...

    I will never own a gas truck without a SC...nothing to worry about on reliability as long as you're up on your maintenance. More expensive fuel is required and you use more of it...the cost of awesome can surprise ya if you don't research...congrats as you made a great choice!
     
    snivilous likes this.
  17. May 1, 2021 at 8:17 PM
    #17
    Supra Dr

    Supra Dr New Member

    Joined:
    Oct 21, 2018
    Member:
    #20815
    Messages:
    3
    Gender:
    Male
    Vehicle:
    '16 SC TRD PRO
    TRD blower w/ Toyota ECU & software
    If your worried about MPG a blower is not for you unless you have super human restrain.

    My MPG is stuck @ 14.6 MPG according to the computer & has not moved in years. Real MPG is is around 11MPG BC I drive like an azz & enjoy it every day.

    Ninja edit
    I also have a Prius (Don't ask) the I get about 28 MPG, so it must be me.:)
     
    Last edited by a moderator: May 2, 2021 at 5:59 AM
    ZappBrannigan and Booney like this.
  18. May 1, 2021 at 8:20 PM
    #18
    Terndrerrr

    Terndrerrr it's good to get lost once in a while

    Joined:
    Jul 8, 2019
    Member:
    #32965
    Messages:
    996
    Gender:
    Male
    Music City
    Vehicle:
    21 AG CM OR
    TRD Fox, CB +2, RCI, 285/75 DTs
    That is my new favorite forum quote. Well done, sir.
     
    HulkSmurf14 and MaxPower like this.
  19. May 1, 2021 at 8:49 PM
    #19
    1UP

    1UP New Member

    Joined:
    Oct 21, 2020
    Member:
    #53887
    Messages:
    459
    Gender:
    Male
    VA
    Vehicle:
    2019 Red CM TRD sport 4x4
    Everything I've read says it's roughly +1 mpg
     
  20. May 1, 2021 at 8:51 PM
    #20
    1UP

    1UP New Member

    Joined:
    Oct 21, 2020
    Member:
    #53887
    Messages:
    459
    Gender:
    Male
    VA
    Vehicle:
    2019 Red CM TRD sport 4x4
    Do you know if they worked out the stage 2 software yet for 19s and up?
     
  21. May 1, 2021 at 8:53 PM
    #21
    Joe333x

    Joe333x Member

    Joined:
    Apr 4, 2019
    Member:
    #28632
    Messages:
    397
    Boston
    Vehicle:
    2019 Tundra CrewMax Platinum
    So how long til the extra MPGs with premium pay for the cost of the supercharger? :p
     
  22. May 1, 2021 at 8:53 PM
    #22
    AZTundra

    AZTundra No Longer a New Member

    Joined:
    Feb 13, 2018
    Member:
    #12894
    Messages:
    3,389
    Gender:
    Male
    First Name:
    Paul
    Phoenix, AZ
    Vehicle:
    2017 White Crewmax Limited 5.7 FFV
    Magnuson Supercharger, TRD Goodies (Pro Suspension, Pro Grille, Exhaust, CAI, Rear Sway Bar, Oil Cap). Weather Tech Floormats, BakFlip MX4, Spray In Bedliner, AMP Research Bed Extender and Bed Step, Side Steps, B&W Adjustable Drop Hitch, AJT Designs Battery Hold Down, SDHQ Sliders.
    Your computer mpg's will be off after the supercharger is installed. A good gauge is to take what the computer shows and subtract 5 mpg's from that. That's what I've heard from others and pretty spot on when I hand calc it.
     
  23. May 2, 2021 at 3:37 AM
    #23
    nobodyintexas

    nobodyintexas New Member

    Joined:
    Jun 22, 2020
    Member:
    #48303
    Messages:
    28
    Gender:
    Male
    First Name:
    2020 1794
    Vehicle:
    2020 White 1794 Tundra
    I don't think so. I'll wait on HPtuners before I do Stage 2.
     
  24. May 2, 2021 at 5:32 AM
    #24
    1UP

    1UP New Member

    Joined:
    Oct 21, 2020
    Member:
    #53887
    Messages:
    459
    Gender:
    Male
    VA
    Vehicle:
    2019 Red CM TRD sport 4x4
    If there is no tune, then the ECU is not flashed correct? Does this mean the Tow/Haul mode still operates the same?

    I read someplace it gets all screwed up when supercharging the truck.
     
  25. May 2, 2021 at 6:29 AM
    #25
    nobodyintexas

    nobodyintexas New Member

    Joined:
    Jun 22, 2020
    Member:
    #48303
    Messages:
    28
    Gender:
    Male
    First Name:
    2020 1794
    Vehicle:
    2020 White 1794 Tundra
    no tune = truck acts the same.

    it runs off the MAF, so all variables remain on the "table" - as long as you run the stage 1 pulley.

    there is an awesome white paper by Harrop that explains all this. they tested the stage 1 on a 2018. no tune. I'll post relevant snips tomorrow, once i get back to the office.
     
    1UP likes this.
  26. May 3, 2021 at 3:50 AM
    #26
    nobodyintexas

    nobodyintexas New Member

    Joined:
    Jun 22, 2020
    Member:
    #48303
    Messages:
    28
    Gender:
    Male
    First Name:
    2020 1794
    Vehicle:
    2020 White 1794 Tundra
    Probably been posted before, pardon if so,

    From Harrop:

    Calibration of Toyota 3UR-FE Engine ECU for Harrop Supercharged engines

    Tuning of Supercharged Engines is always recommended to achieve safe and predictable performance targets. Recently, manufacturers have begun increasing security around the OEM ECU, limiting accessibility and therefore tunability of modified engines.

    As there is high demand for modifications on 3UR-FE powered Vehicles, Harrop Engineering have undertaken both Dyno and road testing on their own development Vehicle – a 2018 Toyota Tundra 3UR-FE.

    When assessing the vehicle software for suitability with mechanical modifications, we looked primarily at Ignition, fuelling, load calculation and torque output. From looking at multiple similar stock calibrations we were able to reasonably assess the upper limit of the existing tuning maps.

    After installing the Harrop 2650 Tundra Stage 1 Supercharger kit, Harrop were able to make a number of assessments based on comparative ignition timing, fuel enrichment, engine loads, and torque output. Logged data, in combination with access to earlier 3UR-FE calibrations allows for some reasonable assumptions.

    Ignition:

    The factory maps are very conservative on ignition timing. In Australia fuels vary from 91 through 95 and 98 RON. The Harrop test vehicle was delivered on 91 RON fuel, and logs showed the vehicle to be running on the knock sensors. i.e. the stock ECU was retarding ignition timing due to knock on 91 RON fuel. ‘Knock Ears’ were used to confirm the effectiveness of the knock control and sensitivity.

    With the Supercharger installed running on 98 RON fuel, similar low-level knock retard was evident, in general no more than 2-3 degrees of knock retard was recorded. Audible knock at the knock ears was no greater than experienced using 91 RON stock. Knock was only audible with knock ears; no knock was audible in the cabin as per manufacture.

    Assessing knock sensitivity is a common tuning requirement due to mechanical modifications that impact engine noise. Noisier mechanical components can result in false knock detection and low power output. Fortunately, the Toyota knock strategy proved to be very robust and well dialled in. Like many OE calibrations the Toyota spark strategy starts from being retarded, in this case 3 degrees, and adapt up or down from there. If we take an example from our logs and spark tables and compare them to other accessible 3UR-FE calibrations, our run spark is actually only 2-3 degrees lower than the commanded spark table at loads above 60%. This is on par with the stock vehicle and low(standard) octane fuel.

    Fuelling:

    In regards to fuelling the 3UR-FE are MAF (Mass Air Flow) based, so boost pressure is not a factor for the ECU. The limiting factors are MAF flow and any ECU limits relating to flow. The stock mapping extends to load of 110%. Observed peak load supercharged is 140%, therefore it is important to know what is going to happen when you go “off the map”.

    The additional airflow proved to be of no concern to the ECU, peak airflow of 450 g/s was measured with the supercharged unit.

    Testing at higher boost did reveal limits, both an ECU 512 g/s calculation limit and the MAF voltage ceiling. In addition, at higher flow levels the standard injectors do not have sufficient flow.


    Torque output and engine load:

    The output torque is clearly higher, the concern around output torque is that it is calculated correctly. The relative torque output calculation is important for transmission shift quality and torque reduction. Harrop are able to log airflow and load calculations on their Hub Dyno. By retaining the stock MAF and therefore stock airflow reading, the transmission will see the relative torque increase and apply the required pressure and torque reduction changes.

    To summarize, Harrop recognise a tuned option would be best. Where one does not exist, Harrop opted to test the operation of the stock tune with the Supercharger and are content that the modest boost upgrade of the Stage 1 kit works within the limits of the factory tune. The parameters of the stock tune extend satisfactorily to within the increased airflow of the upgrade as is evident by timing and knock control when combined with 98RON (93 AKI) fuel, component enrichment protection, increased shift torque reduction and the absence of modification induced MIL light from increased air flow.

    Very recently, tuning has become available on some 3UR-FE ECUs so further analysis of higher output and the respective limits became possible. The results were that re-calibration of 3UR-FE Vehicles was not advantageous for the Stage 1 kit (Ø85mm pulley), as long as the Harrop Supercharger kit is Installed as supplied, completely and without further modifications.



    So maximum airflow was set at 450 g/s by selecting the Ø85 Supercharger pulley. To provide a further factor of safety, the Harrop Supercharger kit includes a high-volume Fuel Pump and Fuel pressure Regulator modification. Higher outputs beyond the Harrop Stage 1 kit will require tune scaling, larger MAF pipes and supporting fuel hardware.

    The mixture commanded in the stock tune is very rich under load for catalyst and component protection, something most tuners would lean out for greater gains. The Harrop fuel system upgrades in no way alter the normal overheating protections. These fuelling protections are modelled in the ECU and are based on airflow, not boost as no MAP sensor is present in the OE manifold by design. The advantage here is that the protections will be available at the same rate of air flow as stock, no “performance tuning” means engine longevity is less compromised as the aftermarket tuner will generally lower or remove the factory protections in favour of Power. The modifications made to the fuel system also ensure the ECU hits is commanded target fuel, and logged fuel trims are +/- 10%.


    Torque output and engine load:

    The output torque is clearly higher, the concern around output torque is that it is calculated correctly. The relative torque output calculation is important for transmission shift quality and torque reduction. Harrop are able to log airflow and load calculations on their Hub Dyno. By retaining the stock MAF and therefore stock airflow reading, the transmission will see the relative torque increase and apply the required pressure and torque reduction changes.

    To summarize, Harrop recognise a tuned option would be best. Where one does not exist, Harrop opted to test the operation of the stock tune with the Supercharger and are content that the modest boost upgrade of the Stage 1 kit works within the limits of the factory tune. The parameters of the stock tune extend satisfactorily to within the increased airflow of the upgrade as is evident by timing and knock control when combined with 98RON (93 AKI) fuel, component enrichment protection, increased shift torque reduction and the absence of modification induced MIL light from increased air flow.

    Very recently, tuning has become available on some 3UR-FE ECUs so further analysis of higher output and the respective limits became possible. The results were that re-calibration of 3UR-FE Vehicles was not advantageous for the Stage 1 kit (Ø85mm pulley), as long as the Harrop Supercharger kit is Installed as supplied, completely and without further modifications.

    190808_Toyota_3UR-FE_V8_Tech_Guide
     
    406Michael likes this.
  27. May 3, 2021 at 7:44 PM
    #27
    BoWat

    BoWat [OP] New Member

    Joined:
    Apr 27, 2021
    Member:
    #62367
    Messages:
    6
    Gender:
    Male
    Vehicle:
    2019 Toyota Tundra Platinum
    2.5 Factory Series Coil-Over Reservoir Shock, Fox 2.0 Reservoir Shock, Icon UCA, TRD Dual Exhaust, AMP Research Power Step, Method Wheels 20X9, Cooper AT3 XLT 305/55R20, Magnuson Supercharger
    I posted two threads with the same title, I didn't know how to reply. :sorry: Got it now.
     

Products Discussed in

To Top