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Porting/polishing, headers, higher compression, longer duration cam, additional fuel/air should amount to something. If it would work on any other NA motor, why not the 300? Maybe the JWT chip doesn't compensate for the add-ons? If you did the same mods on a SBC, you would net a serious gain. I know I'm comparing apples to oranges, but the principles remain the same. Increasing air/fuel, flow into/out of the compression chamber makes more power. I personally think that the JWT chip is a good mod for minor mods, but it probably does not compensate for larger mods. When I did all these mods to my SBC, I had to compensate with a larger carb and fuel pump, and netted a serious gain in power. What are we doing to the Z other than a computer chip to take advantage of these mods fully? I once read how a free-flow exhaust/intake made an OBD-II computer on a Camaro limp home with trouble codes and no gain in power. Once the chip was reprogrammed, the Camaro made a pretty big jump in performace. The JWT chip does not get reprogrammed afterwards to allow for the further mods other than your average stage 2-3 bolt-ons. Anyone have any feedback?
Mike Zeppieri Stage II+ 2+2 "My money pit in the shape of a Z." |
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