l67ss Posted January 13, 2014 Report Posted January 13, 2014 I already know about the 140mph shutoff speed, but are there any other differences in calibration? Thanks Quote
l67ss Posted January 14, 2014 Author Report Posted January 14, 2014 No just the pcm. Happened to find a junk 9c3 and grabbed da pcm cause new for sure about the 140mph shutoff . Jus didnt kno of any other diffs do you have the file? Quote
RobertISaar Posted January 14, 2014 Report Posted January 14, 2014 assuming GM followed the same pattern as what they did for the 95 police luminas: more accurate speedometer calculation modified A/C operation modified speed/rev limiters and that is about it. Quote
l67ss Posted January 14, 2014 Author Report Posted January 14, 2014 Sooo my speedo is going to be even MORE accurate? My 9c3 cluster is already less than a half mile off from my gps even with the 18s assuming GM followed the same pattern as what they did for the 95 police luminas: more accurate speedometer calculation modified A/C operation modified speed/rev limiters and that is about it. Quote
RobertISaar Posted January 14, 2014 Report Posted January 14, 2014 it might be. the way GM did the calibrations for 95 was to make a single calibration that covered both wheel/tire combos(205/70R15 and 225/60R16, IIRC) and set the pulses/mile setting exactly in the middle of the two. very little error for either one. but when they released the police calibration(with police specific tire size of 215/65R15, i THINK?), they set pulses/mile perfectly for that size to keep the digital speedo 100% correct. Quote
z34Phoenix Posted January 14, 2014 Report Posted January 14, 2014 well if you have a dhp, just read the file out of it. i'd like to see it as well. Quote
l67ss Posted January 14, 2014 Author Report Posted January 14, 2014 Wish i had a dhp.... If i did thered b custom tuned ws all over sprinfield . Havent been able to find one foe sale. well if you have a dhp, just read the file out of it. i'd like to see it as well. Quote
z34Phoenix Posted January 15, 2014 Report Posted January 15, 2014 Well when you come across one lmk, I can set you up with a topswap starter file if you need one. Unless you are doing a full L67.... I. Any event if you need help tuning lmk Quote
l67ss Posted January 15, 2014 Author Report Posted January 15, 2014 Thanks man . Im gonna stick to topswapped 3.8s cause all the l67s ive checked out(and ive looked at over 100) have been beat to hell. People think just cause they have an sc they have to abuse it i guess Well when you come across one lmk, I can set you up with a topswap starter file if you need one. Unless you are doing a full L67.... I. Any event if you need help tuning lmk Quote
RobertISaar Posted January 15, 2014 Report Posted January 15, 2014 ............ with very few exceptions, all enthusiast oriented engines will be like that. i'd be much more worried about the trans. Quote
l67ss Posted January 15, 2014 Author Report Posted January 15, 2014 Yeah thats y decided to skip the hd route. My 4t65 was a fresh rebuild behind an l36 that caught fire before they could really abuse it ............ with very few exceptions, all enthusiast oriented engines will be like that. i'd be much more worried about the trans. Quote
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