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so basically i took the Z (2003 m6) to one of the "best" import tuners for all cars on the east coast. im talking about 1600whp supras, 1000whp evos yadda yadda. the guy who owns the supra is a good friend of the family so we figured his tuner would take good care of the Z even though she is slow. i had talked to the shop about possibly installing my cams and valve train which is a decently expensive job so i thought they would see this as a good opportunity. well needless to say they did a joke of a job. only did 7 total pulls tuning the car, tuned it on the maf voltage, and jacked maps from a cammed z(my z isnt cammed yet although all my parts are sitting and waiting for my tech to install them). the baseline was 240whp. all he got out of it was 247whp. for my mods that was REALLY low so i did some research and come to find he had jacked the maps and not tuned on a wideband. the tuner had the balls to tell me his DJ reads high!
i took the Z to the shop where my bf's ls2 gto gets work done. the tuner there, eli (who had never used utec before let alone tuned a z) showed me on hypertermial the sketchness of the first tune. the afr on the ond tune was 11 to 12 across the board, the new afr is around the 13-13.2 mark. eli redid my tune ( i only have the dyno from the first session, it got late so i came back the next week and he finished it off) and in conclusion got 270whp and 265tq in its final pulls. mind you all pulls where done in 4th gear on a dyno jet. eli's DJ is fair. it read an intake only 03 m6 z at 232/225 ten minutes after my run. eli's dyno was not corrected but i do beleive the first shop corrected his numbers. it is def a very different car after eli's tune and has pulled away from mid and low 13 sec cars on the streets. ill post up the final sheet if i can find it since i think i deleted it from my email and the dyno of the tomei cam tune (hopefully sometime by the end of the month).
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