Diablosport Forums

Ok been trying things out but car seems to get slower and slower the more I play with the tune. I have air raid cai and dual 2.5 inch exhaust(from cat back) with x-pipe and flowmaster 44's and I run Sunoco 93 octane and I am running mid 7's 0-60 and can't figure out why( I use a GTECH pro for tuning) and laptop with obdII port hooked up to ipad for knock and fuel/air ratio). Here is my last tune written any help would be appreciated I bought this tuner the day it came out and I love it just need to figure it out! itune dcx-1000
thanks
Mike

what changes have you made?
Trying to improve on our dyno tune is tough

it seems like no matter what I change nothing seems to change very little to nothing at all I have gone as high as +8 wot fuel on each band and +8 timing advance on all 3 mbt and all 3 wot spark and on my monitors from obd 2 hookup from 87 to 91 to diablo tune and each time says successfully written ad have never had any st or lt knock( which I figure I would have changing the numbers that drastically)

Buddy, do a compression test, mine exhibited that behavior plus rough idle, and loss of economy. I'm starting to really doubt the quality and design of this motor.