Originally Posted by Joe Batters
Hey guys, I was wondering what performance upgrades are available for the 2tr-fe motor?
I know so far:
Volant CAI (Though I've read a high flow drop in with removing the secondary as good as the volant?)
Tooter manifold spacer
various catback exhaust systems (Can anyone recommenced one?) I have a reg cab and have seen Gibson, Jardine, proflow, and magnaflow
Are there any more mods available to us 4cyl guys or is that about it?
You about covered everything as far as parts, except opening up your exhaust with an aftermarket catback will likely decrease low end torque in exchange for a little more top end horsepower. The 2TR is such a slow turning "industrial" engine, that works against it more than in its favor. I had a custom catback exhaust installed, but I had the mandrel bent exhaust pipe sized slightly smaller than the stock diameter to compensate for the more free flowing straight through muffler. It worked great as the engine retained its low end torque while adding a nice mellow sound.
I found that wheels can help. I run lightweight alloy 16 inch wheels on my 5 lug street taco with wide low profile smooth riding 235/60 passenger car tires that are exactly the same diameter as stock.
I had heavy 245/75 off road tires on even heavier 16 inch steel Tundra wheels, and my truck was a DOG
. Man, was the engine sluggish.
Putting heavy large diameter aggressive tread off road tires really saps the little engine's power not only with the increased rotating weight, but gears the engine higher making it work harder. A solution to that is to change the final gearing to compensate for the larger diameter tires.
I also did another very uncommon mod by removing the air conditioning, the power steering, and a bunch of pulleys. Now just a short simple belt only runs the alternator and the water pump.
So these are all of my mods:
1. Injen warm air intake
2. LCE long tube header
3. tooter intake manifold spacer
4. MagnaFlow muffler with small pipe
5. alloy wheels and street tires
6. no air conditioning
7. no power steering
I dyno tested the engine exactly as listed above, and it made +18HP
more than bone stock. This is how it runs...
I'm totally satisfied with the results. The truck is peppy and responsive even though it's always fully loaded with tools and material for work.