Originally posted by lo bux racer@Nov 27 2005, 04:34 PM
Dyno tests on intakes are a complete waste of time. The intake isn't seeing the same air movement it sees when the car is in motion, and most dyno testing I've seen, the hood is open and fans are blowing on the car to move air through the radiator. That's NOTHING like what happens in service.
There is only one useful test for an intake. Trapspeed on a measured course before and after the change. The whole point of the dyno is to show you made a change that results in more power, and more power implies the car is faster, except the car isn't moving on the dyno, so unless the dyno test is in a wind tunnel with the hood in its operating position, the test is absolutely pointless.
not to forget all the other factors that go into a dyno's results. people think an inertial dyno is accurate down to .1 HP. but the same day, the same car, the same mods, the same tech will result in different readings. i am seriously about to go blow the dollars on 10 runs on the dyno just to settle this.
weapon r has a dyno somewhere that plainly shows an increase of 13whp from their intake. people are still skeptical, even though its shown on a dyno, which apparently to a lot of people is the end of all things. they are right to be skeptical. and you should be, too. if it was that easy to get 13whp...
buy what you buy, believe the hype. people on scionlife, and socaltcclub and even here have all discussed the UR pulley swap, and everywhere you read says its a great idea. cause it works and this and that. and you shell out your dollars, and you snap the chain on the oil pump, and all goes to hell. but, i read on the internet that it wouldnt hurt my car. the guy at the store said it would be fine.
the people at toyota have been building this stuff longer than, and at a level much higher than, some guy with a cnc machine and a plan to make some money off you in the aftermarket world. but what do i know anyway?