wimwerf

when is it really nessecary(spelling) putting air injectors on a cossie. i know these are always good when mapped right.

foreigneRS

it's never necessary to use air injectors.

it may be necessary to use some sort of 'mappable' boost control though, be that air injectors, external boost controller or whatever. as i understand it, it's really only 'necessary' if you have a turbo / engine combination that sufffers from surge at certain conditions. in that case, you can eliminate the surge but still keep a higher boost later in the rev range which would not be easily possible using simple 'fixed' boost control devices like bleed valves.

in other cases it may be desirable to have some sort of electronic boost control. for example:

1) to have switchable boost levels for different drivers / road / weather conditions

2) to change the way the boost comes in

3) to have a high peak boost in the mid-range but reduce higher up the rev range

etc, etc.

wimwerf

thanks

foreigneRS

that's just my opinion wim mate. it may not be totally correct. you should wait for some more replies to get other opinions.

wimwerf

ok