05-22-2021, 08:14 AM
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#1
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Junior Member
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Join Date: Jul 2020
Location: West Virginia (the best Virginia)
Posts: 22
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Junior Member
Join Date: Jul 2020
Location: West Virginia (the best Virginia)
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5th Gen - Engine mods???
Seems like the four liter engine in the 4Runner is durable, dependable and…underpowered. Other than a new air intake or supercharger are there any engine mods to boost a little more out of the old girl? And before the chat room snark police start up with comments about trying to turn a 4Runner into a drag car - I’m not talking about that. Just wondering if there are any companies producing some bolt on parts that can boost the abilities of that engine.
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Last edited by TRDrew; 05-22-2021 at 08:22 AM.
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05-22-2021, 08:52 AM
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#2
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Join Date: Mar 2019
Location: North Carolina
Posts: 495
Real Name: Jim
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Join Date: Mar 2019
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You'll get mixed answers on intakes and exhaust. I have an AFE filter in thee stock box and a Borla muffler and I think they helped a bit. Certainly not a huge amount at all. What makes a huge difference in the drivability is a Sprint Booster or one of the other throttle re-programmers out there. It doesn't make more power but brings on the power that's there more readily. The difference is night and day and no you can't duplicate it by flooring the gas pedal.
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2019 Nautical Blue SR5. Mostly stock but a few mods: Borla muffler, blacked out badges, removed the running boards, painted the silver roof rails with bed liner, painted the wheels gloss black, Weather Tech window deflectors. AFE replacement air filter in stock air box & removed the charcoal after filter, DC Sports exhaust tip. H11 to H9 headlight bulb swap. 265/70/17 Falken Wildpeak AT3W tires, Sprint Booster, 1" Cornfed leveling lift.
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05-22-2021, 09:26 AM
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#3
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Join Date: Nov 2020
Posts: 159
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Quote:
Originally Posted by Blue 4ever Runner
You'll get mixed answers on intakes and exhaust. I have an AFE filter in thee stock box and a Borla muffler and I think they helped a bit. Certainly not a huge amount at all. What makes a huge difference in the drivability is a Sprint Booster or one of the other throttle re-programmers out there. It doesn't make more power but brings on the power that's there more readily. The difference is night and day and no you can't duplicate it by flooring the gas pedal.
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+1. The 4Runner power is perfectly fine for what it does, especially off the asphalt. I just find the input and delivery curve to be delayed on the highway without some assist.
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05-22-2021, 11:40 AM
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#4
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Join Date: Apr 2013
Location: South of Denver
Posts: 497
Real Name: Mike
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Join Date: Apr 2013
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I believe the "delay" in the gas pedal was put there intentionally, for durability. Off road, you want to ease into the throttle to avoid breaking things.
Sadly the days of the recipe "intake, exhaust, cam" are past. No simple job any more. In order to keep the awesome reliability, the blower IMO is the way to go.
How much power are we talking? I live near Denver and going up into the mountains I'm passing most people, albeit at 70 in 3rd gear. A NA V6 needs to spin to make power.
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Last edited by JLTD; 05-22-2021 at 11:42 AM.
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05-22-2021, 12:03 PM
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#5
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Member
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Join Date: Oct 2019
Location: Las Vegas
Posts: 837
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Location: Las Vegas
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Quote:
Originally Posted by TRDrew
Seems like the four liter engine in the 4Runner is durable, dependable and…underpowered. Other than a new air intake or supercharger are there any engine mods to boost a little more out of the old girl? And before the chat room snark police start up with comments about trying to turn a 4Runner into a drag car - I’m not talking about that. Just wondering if there are any companies producing some bolt on parts that can boost the abilities of that engine.
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It's durable and reliable because it's "underpowered." Less stress on the components leads to a longer life.
I'm not preaching that it has plenty of power but it's adequate for what it is. It carries the loads, on and off road, and does it for decades without complaining.
As the owner of several 500-600+ hp cars, factory and otherwise, there's something to be said for not having the thing run on the ragged edge of reliability when miles away from pavement or even cell signal.
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'20 Army Green 4Runner TRD PRO
'16 Quicksand Tundra TRD PRO Gone
'08 Salsa Red Pearl 4x4Runner SE V6: Gone
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05-22-2021, 01:07 PM
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#6
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Senior Member
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Join Date: Apr 2021
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Quote:
Originally Posted by jp.vegas
It's durable and reliable because it's "underpowered." Less stress on the components leads to a longer life.
I'm not preaching that it has plenty of power but it's adequate for what it is. It carries the loads, on and off road, and does it for decades without complaining.
As the owner of several 500-600+ hp cars, factory and otherwise, there's something to be said for not having the thing run on the ragged edge of reliability when miles away from pavement or even cell signal.
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So you, of all people, know what we can and can’t expect out of a Jag 5.0 V8. The supercharged ones
Timing chains and head gaskets. I have a 2012 Range Rover I just put a pulley and tune on.
It’s an absolute beast of a machine now but it’s cost me $5k a year to keep on the road, absent any elective work I have done.
That little 6HP26 (or 28?) wasn’t even rated for the advertised numbers from the factory, let alone anything more.
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05-22-2021, 01:40 PM
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#7
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Senior Member
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Join Date: Apr 2021
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Can someone tell me why we have gone from using green coolant to red? (IAT vs OAT)
I keep hearing stories of people with DexCool and similar red products having head gasket issues after it causes gaskets to swell (in a bad, extreme kind of way).
Does anyone know the science or have testimony either proving or disproving this?
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05-22-2021, 01:40 PM
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#8
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Join Date: Jan 2020
Location: Pensacola FL
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Sounds like a Sprint Booster or Pedal Commander might be a fix you are looking for in regards to pedal response.
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Ford Explorer - Jeep Liberty Renegade - GMC Yukon Denali - Hummer H2 - Ford Raptor SVT - BMW M6 - Suzuki Jimny - Mazda Demio - Daihatsu Naked - Will Cypha - Toyota 4Runner TRD ORP - Toyota RAV4 Limited Hybrid
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05-22-2021, 02:17 PM
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#9
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Join Date: Oct 2019
Location: Las Vegas
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Quote:
Originally Posted by 2021nightshade4x4
So you, of all people, know what we can and can’t expect out of a Jag 5.0 V8. The supercharged ones
Timing chains and head gaskets. I have a 2012 Range Rover I just put a pulley and tune on.
It’s an absolute beast of a machine now but it’s cost me $5k a year to keep on the road, absent any elective work I have done.
That little 6HP26 (or 28?) wasn’t even rated for the advertised numbers from the factory, let alone anything more.
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Yes but doesn't the F Type R sound GLORIOUS with that motor?
My current C63 has been pretty OK, but I've gotten my money out of the extended warranty already. I had a ~600 whp Z06 which had a prodigious appetite for things like valve stems from the factory. It was fine after a complete engine rebuild, head job and tune
Anyway, stressed components lead to failures. Keeping things more reliable necessitates giving something up. And the brits can't build anything reliable no matter what ;)
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'20 Army Green 4Runner TRD PRO
'16 Quicksand Tundra TRD PRO Gone
'08 Salsa Red Pearl 4x4Runner SE V6: Gone
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05-22-2021, 09:00 PM
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#10
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Senior Member
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Join Date: Mar 2021
Location: Canada
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folks that feel the 4runner is underpowered can you please explain why you think this? is it towing? 0-60? something else? how much power would it need to be acceptable in your view. I have never felt the 4runner was underpowered, highway driving, city driving no issues. I've read many posts saying power was poor, so maybe I'm just pleasantly surprised? I do not tow heavy loads either but it's not designed for that. the v6 4.0L has more than enough power to handle some difficult trails, even stock while also acting as a reliable family hauler / daily driver - what it's made to do and it does that job better than almost every other vehicle out there (land cruiser, 4runner, what else?). the trail trims that have MTS, rear locker, ATRAC and craw control are amazingly capable right out of the factory and at a somewhat reasonable price. it's great that all trims even have ATRAC right from factory - and ATRAC holds it's own it's not some crappy system lol, it works
can you imagine how much a 500hp, 4 second 0-60, 12,000lb towing capacity, same reliability as current 4runners, TRD off road pro 4runner would cost. it would be like 90 grand lol
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Last edited by Humble Leader; 05-22-2021 at 09:03 PM.
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05-22-2021, 09:42 PM
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#11
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Join Date: Sep 2014
Location: Boston
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Quote:
Originally Posted by Humble Leader
folks that feel the 4runner is underpowered can you please explain why you think this? is it towing? 0-60? something else? how much power would it need to be acceptable in your view. I have never felt the 4runner was underpowered, highway driving, city driving no issues. I've read many posts saying power was poor, so maybe I'm just pleasantly surprised? I do not tow heavy loads either but it's not designed for that. the v6 4.0L has more than enough power to handle some difficult trails, even stock while also acting as a reliable family hauler / daily driver - what it's made to do and it does that job better than almost every other vehicle out there (land cruiser, 4runner, what else?). the trail trims that have MTS, rear locker, ATRAC and craw control are amazingly capable right out of the factory and at a somewhat reasonable price. it's great that all trims even have ATRAC right from factory - and ATRAC holds it's own it's not some crappy system lol, it works
can you imagine how much a 500hp, 4 second 0-60, 12,000lb towing capacity, same reliability as current 4runners, TRD off road pro 4runner would cost. it would be like 90 grand lol
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so this is not a complaint, but one thing that feels like an overhang is the downshifting at highway speeds when you approach and climb a "grade" on the highway. I have an old (1999 lancruiser with a v8) -- that never downshifts when climbing, yes its a v8, and a bit more torque. Yes I get that off-road performance is the 4runner operating model, but I don't care what the specs say (HP/Torque/ 5speed trans with OD) it just feels like its struggling .... thanks for listening to me whine, I love my 4 runner....it never brakes and that's my use case, but...........!
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05-22-2021, 10:15 PM
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#12
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Join Date: Dec 2008
Location: Crystal River, FL
Posts: 984
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Although I have a '19 TRD OR Premium, I still have my '08 Sport. Both 4Runners have the same 4.0L and despite the '19 putting down more HP than the '08, my '08 can run circles around my '19. Both have CAIs and I have a Sprint Booster on the '19. Yes, the '19 is a few hundred pounds heavier but the difference feels significant. Go figure...
Perhaps I haven't "broken in" the '19 yet with only 5500 miles on it. My '08 sees most of the around town errands and towing duty whereas the '19 is a bit of a garage queen, reserved for out-of-town jaunts.
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'90 T4R - sold at 205,000 miles
'00 T4R - sold at 152,000 miles
'08 Sport - 178,000 miles & still going strong
'19 ORP - just over 6,000 mi. (garage queen, like my '07 Mustang)
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05-22-2021, 11:19 PM
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#13
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Elite Member
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Join Date: Mar 2010
Location: Pittsburgh
Posts: 5,690
Real Name: Chris
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Join Date: Mar 2010
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I'm very happy with my AFE Intake, AFE Throttle Body Spacer, Borla Exhaust and URD MAF calibrater. I get plenty of get up and go and have no need for a pedal trick device, my truck gets up and goes very nicely
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2017 Nautical Blue SR5 Premium - Black Emblems, AFE 76mm TB, AFE Momentum GT Intake, URD MAF Calibrator, Borla Touring Cat-Back Exhaust, VR ECU Tune, RCI Skid Plate, Morimoto MLED 2.0 Headlight Retrofit, Morimoto LED Fogs, Eagle Eye Smoked Black Tail Lights, FyreFlys LED Interior, Meso Puddle Lights, Tinted Mirror Turn Signals, Smoked Amber Raptor Lights, Odyssey 34 Battery, 32" LED Bar with Rago Hidden Brackets, Rago Molle Panels, Side Shooter LED Ditch Lights, sPod w/ PowerTray, Raceline Matte Bronze Wheels w/ Cooper Discoverer RTX, CaliRaised Rock Sliders, BajaRack Full Length Roof Rack, Kenwood DMX1057XR, Infinity Kappa Door Speakers and 3.5's in dash, JL 8w3v3 in JBL Enclosure, Husky Weather Beaters, Blackvue DR900S Dash Cams
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05-23-2021, 12:44 AM
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#14
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Junior Member
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Join Date: Jan 2016
Location: Earth
Posts: 23
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Quote:
Originally Posted by Humble Leader
folks that feel the 4runner is underpowered can you please explain why you think this? is it towing? 0-60? something else? how much power would it need to be acceptable in your view. I have never felt the 4runner was underpowered, highway driving, city driving no issues. I've read many posts saying power was poor, so maybe I'm just pleasantly surprised? I do not tow heavy loads either but it's not designed for that. the v6 4.0L has more than enough power to handle some difficult trails, even stock while also acting as a reliable family hauler / daily driver - what it's made to do and it does that job better than almost every other vehicle out there (land cruiser, 4runner, what else?). the trail trims that have MTS, rear locker, ATRAC and craw control are amazingly capable right out of the factory and at a somewhat reasonable price. it's great that all trims even have ATRAC right from factory - and ATRAC holds it's own it's not some crappy system lol, it works
can you imagine how much a 500hp, 4 second 0-60, 12,000lb towing capacity, same reliability as current 4runners, TRD off road pro 4runner would cost. it would be like 90 grand lol
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Toyota already makes it...its called a Land Cruiser
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05-23-2021, 01:00 AM
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#15
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Senior Member
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Join Date: Jun 2013
Location: Midland, MI
Age: 36
Posts: 1,983
Real Name: Charles
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Join Date: Jun 2013
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Quote:
Originally Posted by Humble Leader
folks that feel the 4runner is underpowered can you please explain why you think this? is it towing? 0-60? something else? how much power would it need to be acceptable in your view. I have never felt the 4runner was underpowered, highway driving, city driving no issues. I've read many posts saying power was poor, so maybe I'm just pleasantly surprised? I do not tow heavy loads either but it's not designed for that. the v6 4.0L has more than enough power to handle some difficult trails, even stock while also acting as a reliable family hauler / daily driver - what it's made to do and it does that job better than almost every other vehicle out there (land cruiser, 4runner, what else?). the trail trims that have MTS, rear locker, ATRAC and craw control are amazingly capable right out of the factory and at a somewhat reasonable price. it's great that all trims even have ATRAC right from factory - and ATRAC holds it's own it's not some crappy system lol, it works
can you imagine how much a 500hp, 4 second 0-60, 12,000lb towing capacity, same reliability as current 4runners, TRD off road pro 4runner would cost. it would be like 90 grand lol
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Most of us complaining have to much extra "stuff" on the 4runner . Mine is a Pig as my "round town" weight is 5800lbs.......with 285s, roof rack and a snorkel. Its a PITA on the highway and cruise control is all but worthless but I completely accept that is all my doing. My wife's 2015 is stock other than the AT3s (265) and its a pleasure to drive and the cruise works fine - even got an un imaginable 19mpg keeping it under 70.
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2014 Trail Edition Premium, 285/70/R17 BFG KM2, RadFlo 2.5" Coilovers and Rear Shocks, 50qt ARB Fridge, OTRATTW Switches, BudBuilt Bumpout Sliders, Gobi Rack + Ladder / 40" Rigid E2 /Rotopax and MaxTrax mounted, ARB CKMTA12, 270amp Alternator, Southern Style Slimline Hybrid Front Bumper w/ Warn Zeon 10S and Front Fogs, Metal Oil Canister, Sound Deadening Insulation w/ Focal Front Speakers,Black Weather Tech mats and custom pin striping & dents (the trees & bushes did it for free)
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