Airaid MXP CAI

4.0 cams are new unexplored territory.
Are the mild ones going to be regrinds? That would be material cost efficient as you could do refundable core charges.


Greg

 

Actually, regrinds are more expensive than new grinds. By $3-500.

 

Thanks, didn't know that. Just thought that some of the idle area of the lobes would be removed to get more relative lift and duration. It's clear I'm not a cam grinder.


Greg

 

I find it depends a lot on what the car started with. For example, if you put an aftermarket air box on a 400HP+ twin turbo engine, odds are the manufacture spent a pretty penny figuring out what was the optimal air-box configuration was to start with. Adding a better air flow design probably won't increase the power much, since the OEM has way more money and engineering to play with then any aftermarket manufacturer. In such a setup you're 100 percent correct, all you do is add noise and you gain next to nothing in horsepower or torque.

Let's take a Tacoma though. The stock air intake was designed to grab air for a naturally aspirated engine. Then we go and stick the TRD supercharger under there. I won't waste my time with the math, but suddenly you have a much higher demand for air out of a system that was really designed for much less air. There's where I suspect you can make good power gains out of a CAI, or even a short ram intake.

Or maybe I just love hearing that whine, either way it makes me happy!