Auxilliary Port gauge for an n/a??

[Gregory_Da_Grasshopp]

Hi I\'ve seen that people do this electronic port activation thingy. I\'ve got an S4 n/a engine with no acv or pump.
Does anyone have a how to guide on how put a gauge in, so i can tell when the aux ports are open or even opening still. i think they are as i get a whoosh and im off. But at the mo i\'ve gotta drive to work and fuel ain\'t gettin cheaper! so would be nice to know the best cruising speed.

Do i have to have a s5 vdi??

any info would be gratefull i had a look on rx7club but not sure!!
Cheers Greg

[dthebuk]

I have one of these guages, I\'ll try and have a look monday, busy untill then.

One way of telling if the ports are open is the slight change in exhuast note

[Gregory_Da_Grasshopp]

Cheers,
It doesn\'t have a distinct note change its just always loud, the pedal goes down a little quicker at certain revs, like it\'s allowing more flow through the system! but it would be nice know visually when they are open and closed so i know when i\'m savin the pennies! or not savin\' them as it were!

Greg

[dthebuk]

oh, they open at 4.5 revs. Its not sudden, which is why you don\'t notice. Similar to vtec without the kick:D