Originally Posted by memario1214
I went with the TRD because I was disappointed with my truck's performance on the interstate mainly. The TRD kit gets into boost a few hundred RPM sooner than the URD kit and the initial investment to get boosted isn't as much either. The thing that sucks is that I am barely making 2 lbs at this elevation so the gains aren't as noticeable. I'm moving to a lower elevation soon though which will make it easier to reap the benefits. However, I get much smoother power and have way better highway manners. Do I think it's worth 4k? Hell no but you gotta pay to play right? I'm putting a little smaller pulley on in about a week which should be a nice addition.
It took me two days of semi commitment to the project. Had to pick up a couple new tools from time to time as well... I could do it in a day if I did it again, but if its your first time tearing the truck apart I'd budget for two.
your actually getting about 5.5 lbs of boost. you have the same issue as me, you live at high altitude. and the other reason for the low boost number is that your using a boost gauge with absolute readings. absolute references sealevel pressure. my gauge is relative meaning it references the pressure where your at. also known as Gauge pressure.
the good news is if you add 3 more lbs of boost with a smaller pulley youll be getting the same or similar power as a tacoma with the same SC at sealevel and you wont need any additional fuel upgrades.
the bad news is if you drive to a lower elevation you will be over boosted and could cause your truck to run lean.
i am about to install a quick change pulley for this reason. run the smaller pulley at home and the larger pulley when i travel to lower elevations (which is very rare)
at 6500 feet in colorado on a cold day i can get about 6 lbs of boost, otherwise i get 5.5 and that is relative gauge pressure. (running the 2.85 pulley)
believe it or not your getting about 60 more HP than stock with the stock pulley