01-11-2019, 03:27 PM
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#1
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SR5 vs TRD Gearing
Is the gearing the same on SR5 models compared to TRD models from the factory? Drove my wife’s SR5 today and it seems to have less power than I remember my TRD Pro having.
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2019 4Runner SR5 Premium
2018 Tacoma TRD Off Road
2017 4Runner TRD Pro - SOLD
2003 Tacoma SR5 - SOLD
1999 4Runner Limited - SOLD
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01-11-2019, 03:46 PM
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#2
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Age: 37
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Same gearing throughout all models; SR5, TRDs, and Limited.
Gear Ratios
1st 3.52
2nd 2.042
3rd 1.4
4th 1.0
5th 0.716
Reverse 3.224
Differential Ratio 3.727
Transfer Case (High/Low) 1.0/2.566 (4x4 SR5, Trail only)
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01-11-2019, 05:17 PM
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#3
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Quote:
Originally Posted by rasber3140
Is the gearing the same on SR5 models compared to TRD models from the factory? Drove my wife’s SR5 today and it seems to have less power than I remember my TRD Pro having.
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It could be the ECU learning the driving style of the person driving it over time. Which is a good thing, it means she drives slow.
It probably shifted a bit earlier under normal acceleration?
Wide open throttle should be the same though, is that what you tested?
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2005 Tundra 2WD Regular Cab V8 - Chopped Frame - Short Bed Swap
1977 Celica Liftback - LFX Swap - Build Thread
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01-11-2019, 05:22 PM
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#4
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Join Date: Aug 2018
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Real Name: Jeremy
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Quote:
Originally Posted by Inv4drZm
It could be the ECU learning the driving style of the person driving it over time. Which is a good thing, it means she drives slow.
It probably shifted a bit earlier under normal acceleration?
Wide open throttle should be the same though, is that what you tested?
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Are you saying the ECU on these are adaptive?? I would be surprised if that were the case.
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'18 SR5 4WD, magnetic gray metallic, stock, RCI front skid, LFD cross bars, Pedal Commander, Accessorides Remote Start.
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01-11-2019, 05:43 PM
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#5
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They definitely are.
Pull the negative battery cable off for a bit, reconnect and I bet the truck feels more torque-y as well as the "miles to empty" will reset. Everyone's "miles to empty" right after filling up is lis actually different as the truck actually learns the driving habits and adjusts.
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2014 SR5P
5100s w/Dobinsons 302/505 springs - SCS F5s - 285/70 Wildpeak AT3W - Prinsu Full Length Rack - Smittybilt Gen 2 RTT - Full RCI skids - RSG sliders - Pedal Commander - Gobi ladder - Rago brackets and 32" LED light bar- TSO TRD Pro grille - 5k HIDs - ARB diff breather - other small stuff
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01-11-2019, 05:56 PM
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#6
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two words:
hood scoop
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2015 trail edition premium w/ KDSS
OPOR sliders ● 255/75/17 firestone destination AT ●
King coilovers and shocks w/ compression adjust ● Dirtking UCAs ● Icon 2" rear springs
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01-11-2019, 06:45 PM
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#7
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All of the 4Runner models are exactly the same except for the emblem on the side and the hood scoop. Performance is completely dependent on the driver and the drivers mechanical skills. 
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2017 Off-road Premium w KDSS, moon roof, sliding rear cargo deck,3" Toytech Boss lift, SPC upper control arms, Sonoran Steel High Articulation KDSS Trac/PanHard Bar, RCI sliders, RCI skid plates aluminum including gas tank, C4 Fab diff skid plate, SCS Ray 10 Wheels Matte Gray, 285/70R17 Hankook Dynapro AT2 RF11 E-load RWL, Cali Raised LED 3x2 fog-light pods, Lock'r Down EXxtreme console safe with electronic lock, Auto Heat Shield all windows, Raingler rear cargo net, Canvasback rear covers, LFD Off-Road cross bars aluminum, LFD Hybrid bumper, LFD wind fairing, LFD Hi-lift jack mounts, Goat Armor, Blackgate Custom KDSS spacers, Ironman 2.5 awning with quick release mounts, Ironman 12,000 lb synthetic line winch.
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01-11-2019, 07:23 PM
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#8
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Quote:
Originally Posted by nb rob
two words:
hood scoop
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This 👆🏻
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Current - 17’ TRD ORP KDSS/Bilstein/Chaos UCA’s/TRD PRO/KO2 285s/Rigid Fogs
Former - 14’ TEP - too much to list
Former - 11’ SR5
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01-11-2019, 07:29 PM
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#9
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Quote:
Originally Posted by jthoms1
This 👆🏻
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Yup. It scoops all the envious looks as SR5/limited drivers stare at your bulge and converts them to pure horsepower.
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01-11-2019, 09:07 PM
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#10
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Are the SR5 tires different?
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01-11-2019, 09:12 PM
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#11
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Quote:
Originally Posted by JAXJeremy
Are you saying the ECU on these are adaptive?? I would be surprised if that were the case.
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Absolutely they are!!
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Paul
2016 TRD Pro, Mag Gray. Mods: SSO Sliders, Bilstein 6112 Front Springs, Dobinson 599 Rear Springs, GY Duratrac LT285/70R17s, Spidertrax 1.25" Spacers, Morimoto LEDs (Lows, Highs & xB Fogs), Full LED Interior Lights....More to Come
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01-19-2019, 06:32 PM
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#12
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Quote:
Originally Posted by JAXJeremy
Are you saying the ECU on these are adaptive?? I would be surprised if that were the case.
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Pretty much all new cars are adaptive ECU now days, No matter the brand
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2018 TRD Premium, KING suspension, 285/70/17 Duratracs, 4.88 gears, Addicted offroad front Bumper, C4 FAB rear bumper, My build thread https://www.toyota-4runner.org/5th-g...ld-thread.html
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