Hack thought for MAS system???

Land Shark lndshrk at xmission.com
Fri Dec 29 05:57:48 GMT 1995


>>I would like to enter a secondary air source down stream from the MAS 
>>so more air is entered into the system which will be unmetered.  As I 
>>see it the vaccum from the engine will pull from both air sources at 
>>the same rate at any given r.p.m.
>
>Most MAF sensors I've seen output 0 to 5 volts as a function of
>air-flow. You could just tack some electronics in the output line
>that divided the output signal down so say 5v from the MAF get's 
>transmitted to the ECO as 4.0v for example. i.e stick a divider on
>the input signal to the ECU. This would increase the amount of air
>the MAF could flow before the ECU pulled the plug.

 Repeat after me ..

 I will NOT hack the 

 I will NOT add any "unmetered air"

 I WILL recalibrate the system to an MAF with higher capacity and
 larger injectors ...

 Yes, it's a lot of work, and after a few YEARS, I finally figured 
 out how to do it with Bosch Motronic systems .. but once you do it
 RIGHT, you'll never do it any other way!

 Jim

 PS: If anyone is trying to do this on a Motronic System .. let me know
     as I can probably help you do it ... I'm adapting EVERY darn air-volume
     (flapper) BMW and Porsche to nice mass-air sensors :)




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