sydemoid wrote: I am also thinking of adjusting the air/fule ratio.... but not too sure of the true net HP gain there...
It is where the power hiding itself...having a good air/fuel ratio is important to be efficient. The 2006 is a good example ('04-'05 should be the same...). The 2006 AirFuelRatio are so rich. I see it when I went to dyno shop last April. They put a sensor in my TRD exhaust pipe and it read the output. Everything goes fine until your pass the 4200 RPM it is dropping quick. from 4200 RPM AFR of 14.5 you get a continuous drop to 6200 RPM where the AFR is at 10.8 (way too rich !!) So you add air in the mixture to get a value of around 13 (I write it simple here...) and you then you get more fire power...more oxygen so bigger explosion = more power. Understand ? Now I have a smooth and perfect AFR line.
It is even more important than the CAI !! Both well install and tuned are just perfect combo !!
I'll work on my CAI extension (to improve the system at maximum. It starting to be a bit late in the year...but I will try to do it this year. My friend, engineer, told me that the air can raise of 50F degrees passing thru the radiator. Again if I took the air density rule and I ignore the altiude and the rest, just take the temp rule (
http://www.hardtail.com/techtips/airdensity.html)...each 5F degrees is 1% air density change. 4% air density = 3% in power so for 20F/5F = 4% air density change = 3% of power. I acknowledge that it is starting to be an good improvement when added with the AFC. I don't know if he is accurate but he told me he is pretty sure that it is at least 10 celsius degrees diff(around 20F). I'm hurry to complete my CAI extension ! I'll have to take out the battery in the rear trunk to make some space under the hood !!
I'll buy my rubber tubing at
http://www.stylinmotors.com
The CP-e MAFci gave me 7% power increase the CAI will add a 3% power
by Sebas007 » Mon Sep 04, 2006 9:32 am 
we are so mean to newbies now lol 
hahaha