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Originally Posted by ZR-1 Mack
Out of curiosity is there a problem or are you just adding some custom features on the chip you have? The reason I asked is adding the custom feature is only $100 while the dyno tune is $200/ hr. (1/2 consultation and 1/2 facility charge) plus the travel expense.
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No major modifications in the works--it is just that beneath the sound of the exhaust and tire road noise I am almost sure I hear steady knocking on acceleration, but honestly I wouldn't bet my life on it. I am going to pull the plugs this weekend and replace them with one step cooler plugs and see if this helps. I also am not happy with the idle as it occasionally, randomly and infrequently has started to fluctuate. The car also tends to crank 3 or 4 times before it starts, warm or cold, although sometimes it starts quicker. Overall the runs pretty good and I always have to consider that I may be too critical.