MAF vs MAP Options

[jason]

Just curious what everyone's opinions on these are (FI application)

for a street driven car (low throttle driving) that also see's its share pf peppy driving (wot pulls) which is "better" and why?

blow off would be recirculated, and leaks not being considered, why would one choose a map system besides tunning capabilities?

[pittfirefighter]

theres issues with the MAF sensor on the 3sgte going bad.... but then again MAP sensors go bad too... the one nice thing about MAP.... MAP reads after the turbo... so if you switch turbos (within close reason) or have parts that might be a tad old or leaky... the MAP will read the actual pressure at the intake manifold rather than the assumed pressure before the turbo... the MAF reads air before the turbo and piping.. MAP reads at the manifold... so at WOT, when i switched to front mount intercooler, my A/F is now super rich at WOT because of the amount of air in the entire system, the delay between MAF and actual manifold has changed so now its almost like my MAF is a step behind...

switching to MAP made my car run like a dream... i got it retuned and havent had even close to as many problems as i did with the MAF... now i can also blow off to atmosphere... some people don't like that, i do

This post has been edited by pittfirefighter: May 28, 2009 - 6:35 PM