info on cai ?

[chigger-coupe]

i have fitted a s/steel cai to the tibby 1.6
it is a high volocity ractive unit
what i want to know is this
it connects to the trottle body at 3 inch then increases to 5 inch then connects to the air filter cone at 3inches
i was told that the air goes in and creates a swirlpot effect then compresses the air in the exit to the trottle body
is this true and is it good for the car??

[MechaniX_034]

Basically, an evenly sized pipe would do most for intake charge velocity. An unevenly sized unit will create cavitation in the airsteram, slowing the rate of the intake charge [cf/m]^2. The filter must also be properly sized.

For the best effect, you may want to wrap the steel pipe in thermal tape[somthing like Thermotec] It will isolate the intake tube from radiated heat.

Hope that helped bro!:bandit:

[Panzer]

The 5" diameter will slow the air velocity down a bit then when it goes into the 3" portion just before the throttle body, the air will experience a drop in pressure and an increase in velocity. Therefore, the air is not being compressed, its just being sped up slightly. I'll let you in on a little secret. If you have an engine working at a steady RPM for example using lets say....100cfm of air, then the actual flow rate in feet cubed/minute remains the same as air flows through a pipe of different diameters, it is the velocity that changes.