[Diy_efi] Spark timing above 1 bar

[pr asdf]

I have a '94 corvette with an lt1 engine I am planning on turboing.  The 
only problem is that I cannot use a higher than 1 bar map sensor, or the 
computer thinks it is at a high altitude on start up, so i was wondering if 
anyone knew of a way to use a simple microcontroller with a look up table 
hooked up to a 3 bar map sensor and the crank angle sensor to delay the 
spark timing above 1 bar, by delaying the signal sent to the coil by a 
certain number of milli seconds to create a spark retard.  I would like to 
retain the use of the stock computers timing tables below 1 bar, and just be 
able to delay it in the high boost regions.  Does any one have any ideas or 
suggestions?  thanks

Judson Hartley




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