Quote:
Originally Posted by rolnVIP
HMMM IM NOT TOO FIMILIAR WITH THE PS1?? I JUST NEED TO TUNE IT..IT RAN A LITTLE RICH ON THE DYNO SO I WANT TO TWEAK THE A/F A LITTLE LEANER..WHATS THE DIF WITH THAT TUNER AS OPPOSED TO THE VEC1?
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vec1 is garbage, split sec is programmable and alters your map sensor output to fool the PCM to richen or lean the A/F It is good for slightly modded motors (400-600hp) with stock or only slightly larger injectors. Once you start using larger than 50# injectors it gets hard to trim the fuel as the 0-5V referance out of the MAP is not enough. It was the only true programmable piggy back tuning tool available for years until Roe came out with the VEC2. Many tuners used them for years and some cars still have them on.