by JoeB » Mon Aug 02, 2004 5:33 am
I've tried to explain this before but I know these messages get lost and burried in thousands of other threads. You will always see the big name CAI manufacturers post dyno sheets on their CAI and the sheet will ALWAYS claim significant gains. I would challenge that you will almost NEVER see those same gains on a before and after dyno when buying their CAI. Please don't get me wrong, I'm not saying that the CAI doesn't give good gains and that it isn't worth it. Quite the contrary, I swear by it.
The difference is, these large manufacturers know that there are many people out there who are chasing a dream dyno sheet and don't know much else about performance so they need to produce these sheets to sell. Are the sheets a lie? I don't think so, I'd consider it an exageration. They will run the before dyno with the hood closed, no fan and in the absolute worse conditions. The Short ram sucking in 200* kind of scenario. Then they install the CAI and have it picking up maybe 80-90 degree air. Do the math, that is where the dyno numbers come from.
People have reported AITs of close to 200* on a hot summer day while stopped at a light using a short ram intake. That's pretty bad. On a 90* day, I brought my car up to full operating temperature, drove around for 20 mins in stop & go traffic, then parked for 2 mins and watched the Air Intake Temerature. It never went over 100*. On the other hand, on a cool day, you will see very little to no difference in performance.
Common sense should be proof enough. You will probably never see a neck-snapping dyno sheet from using this extension. Those big companies pay people in Marketing to put stuff like that together. If Injen made the exact same extension under their name, I gurantee there would be a nice dyno sheet to go along with it. Just don't expect the same thing when you get home. Does that help? -JoeB