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#1
02-17-2004, 06:31 AM
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speed density
Hey, does anyone know the downside to a speed density 5.0? I currently own one and am considering swapping to mass air. My car also has a hard time running when i first start it up, but once it gets running and warmed up, its fine. Is this related to the speed density set up? Any thoughts or comments are always welcome.
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#2
02-17-2004, 08:51 AM
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Downside is it uses a MAP sensor instead of a BAP sensor. This makes it sensitive to vaccuum changes outside of factory specifications unlike a MAF set-up. And no ya car's prob is not from speed density and going to MAF will not fix it.
__________________
R.I.P. Hypsi- Andy your one of the best people I ever had the priviledge to know. AF and the world has lost one of the truly wonderful people... 
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#4
02-19-2004, 04:21 PM
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Re: speed density
speed density is a fine system to use unless you plan to upgrade the engine a lot. Small bolt ons should be ok, but the bigger things like heads and cams will be to much for the factory fuel cushion programed into the ecu. The s/d system can be made to perform as good as a maf system, but the computer needed to be programed on a dyno to get the proper a/f ratio just like the maf. I guess the s/d system just has a smaller tuning window stock then the maf.
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