Hello all, I don’t post much here, but figured I’d put it up as it is relatively unique, and might help others looking to do the same. This forum has been of unbelievable help during this build, and i'd love to give back any information i can.
It is a 1997 SR5 5-Speed. Purchased two years ago with 258k miles essentially bone stock. Picked up off a co worker, original owner, for dirt cheap. It currently sits at 295k miles, 25k of which have been turbocharged. It runs and drives beautifully for a 21 year old truck.
In my 15 years of driving i have only ever owned small, "sporty" japanese cars.. until the 4runner. The time came to get something I that was all season worthy, could haul my dogs, take adventuring, and still be loads of fun. I cant say i had this much modification in my plans when i bought it, but this is how it sits today. I am quite pleased with it, and it is a blast to drive.
Quick notes:
It is running at 6.5PSI manifold pressure
It reaches full boost at 2700 RPM, can see boost as early as 1400RPM
It runs 14(ish):1 in boost at light throttle
It runs 12.5(ish):1 in boost at WOT
It gets an actual 24 MPG highway, 19MPG city (when driven nicely)
It has no codes, actually passes Utah Emissions testing
It never exceeds 210*F, measured by a full sweep autometer gauge
It does not ping/detonate
It is extremely stiff compared to most / all 4runners, by choice
I did 100% of the work myself, except for any welding. I am a career mechanic and fortunate enough to have anytime access to a full shop.
Turbo Specific:
CX Racing Tacoma hot pipe kit, modified to use Vband wastegate
Comp CT4 5558 Triple Ball Bearing Turbo
CX racing small front mount intercooler
Tial 38mm v band wastegate
Tial 50mm Q Blow Off Valve
Custom intercooler piping
Lots of various piping couplers
DEI Titanium heat wrap on every inch of engine bay piping
Wastegate routed back into exhaust stream just pior to PCV scavenging insert
10an bung welded into oil pan
10an black braided oil return line
XRP 48” 3an oil feed line
AEM Methanol injection, smallest nozzle, using washer fluid & OEM reservoir (On at 1psi, full at 4psi. Made an incredible difference in my AFR numbers)
Engine / Trans:
4X Innovations Trans Mount
Marlin Crawler 1200# clutch kit
Marlin Crawler Flywheel
Marlin Crawler Steel Clutch Line
Marlin Crawler Short Throw Shifter
AEM Intake Filter
Vibrant PCV Scavenger kit, including one way check valve
10AN black braided lines for catch can system
Custom sealed PCV catch can
K&N breather filter on valve cover
Custom full 3” stainless side exit exhaust
Vibrant 3” V band clamps
Magnaflow 12219 muffler
Vibrant 1142 resonator
Greddy magnetic oil pan plug
Suspension:
FJ Cruiser wheels
Michelin Defender tires 265/70/17
SPC Upper Control Arms
Addco Larger Sway Bars front & Rear
SpiderTrax wheel spacers
Bilstein 6112 front coilovers
KYB front upper strut mounts
OME 2906 rear springs
Bilstein Tundra rear struts
Goodridge Stainless Brake Lines Front and Rear
13WL front brake upgrade
PowerSlot rotors
Hawk Brake Pads
Energy Suspension Power Steering Rack bushings
Prothane Sway Bar Bushings
Energy Suspension full body mount set
Energy Suspension Panhard Bar bushings
Energy Suspension Rear control arm bushings, upper and lower
Exterior:
Custom Dog Cage Fixed to liftgate glass opening. Retains full power travel of glass, not so full travel for dogs
All exterior bulbs converted to LED
Newer 3rd gen glass headlights
Mini H1 Projector Retrofit
50w 55K HID headlights
Clear Corners
Clear bumper lights
Moved Turn signal wiring into headlamp corners, bumper lights are now running lights
Debadged Liftgate
Rallysport Direct mud flaps
Black lug nut caps
Modified stock front bumper, removing plate bracket area
Rigid 20641 reverse lights, bumper mounted
Added additional running / parking light where reverse bulb was in tail lamp housings
DEPO LED tail lamps
Interior / Electronics:
All interior bulbs converted to LED (dome and gauge cluster)
AEM EUGO Wideband Sensor
Autometer Oil Pressure, Boost / Vacuum, Water Temp gauges
Perrin 2 gauge holder mounted on steering column plastic
AEM Methanol Injection Controller
Viper automatic start / alarm system
Alpine compact 8” subwoofer mounted under drivers seat
Full seat swap with newer model 3rd gen, different color and has lumbar support
Weathertech Floor Liners front, rear, cargo
Misc Upkeep / Upgrades:
Every panel has large butyl (dynomat) patches, drastically reducing road noise.
New OEM rear pads and shoes
Rear Axle Bearings
Rear axle seals (twice over)
Strongarm Liftgate struts
New coolant hoses
New OEM Thermostat
Denso Plugs
NGK Wires
Redline MT-90 in Trans
Mobil 1 Synthetic all gearboxes
I've probably forgot a lot. Feel free to ask any questions. I will try to put up a video soon!