Quote Originally Posted by 1project2many View Post
Why not use speed density? There are some v8 MAF applications which could be converted to 4 cyl use with some effort.

$58 from Syclone / turbo Sunbird would likely do the job with speed density. It's working on my 22RTE. The 22RTE and 22RE supply a crank signal through the distributor. How does the 4A ecu get an rpm signal?

not sure yet where the crank signal comes from, I assume the distributor, but not 100% sure. Typically MAF will respond better to slight modifications than SD once a tune is created. it's a buddies car, and the stock ECU's aren't tuneable, there's some kind of hack job piggyback thing on it now, and it would be nice to delete all of that and have an ECM control it strait up.

what real benefit would he see going SD? just more accurate fueling/spark control?