The OP pointed out that his 2000 Toyota 4Runner had a TRD 1st generation supercharger, a URD 7th injector kit/ECU kit, a set of Doug Thorley headers and the required gauges and tuning tools. With this setup running on 5 pounds of boost, this SUV made 222 horsepower and 246 lb-ft of torque at the rear wheels.
He later hit the dyno again with a smaller pulley and more boost, but with that better pulley, the blower belt was spinning and he was losing boost. As a result, the 4Runner “only” made 226 horsepower at the rear wheels, but he speculates that without the belt slip, his Toyota could have gotten into the range of 230-240 wheel horsepower.
Keep in mind that with 183 stock engine horsepower, this 4Runner likely made around 150 wheel horsepower (using an 18% drivetrain loss factor), so at 226, this Toyota SUV has picked up roughly 76 rear wheel horsepower from the headers, blower and tune.
New Upgrades
In addition to an array of pictures of his 2000 Toyota 4Runner, the OP shared his latest upgrade, a methanol injection kit. He pulled the kit off of his built Toyota MR2 and installed it on the SUV, quickly picking up an extra pound of boost with the tune. He then reinstalled the 2.2-inch pulley, adding an extra 1.5-pounds of boost pressure. He hasn’t been on the dyno with this setup, but the old “butt dyno” estimated around 250 wheel horsepower. With more tuning work, he expected to get up to 9.5 pounds of boost, at which point he will expect to make around 275 rear wheel horsepower.
In addition to including a ton of pictures of his 2000 Toyota 4Runner around the outside and under the hood, the OP added a long list of links to his thread. Those links include everything from a DIY on the meth injection install to track videos to a dyno video to burnout videos and more from the Texas_Ace YouTube channel.
If you have been considering beefing up your 3.4-powered 4Runner, this threadhas tons of information with real world results.
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