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42's and tuning question
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[QUOTE]Originally posted by mtbaughs: [QB] [QUOTE]Originally posted by TRY2PAZ: [qb] [QUOTE]Originally posted by Falcon50driver: [qb] can you run 36#'s on a stock computer?? [/qb][/QUOTE]You can run up to around 50 lbs injectors on the stock computer with a tuned chip. Talk to Byron at racesystems. I know the stock computer will not keep up with anything bigger than 50. [/qb][/QUOTE]Well whether or not you can get 36 # injectors to run on a stock computer really depends on your combination of parts and ECM. I've seen a few cars which are able to pull it off and others that cannot. It really comes down to how well your MAF is calibrated for your given combo. Also how well a person is able to tune other areas outside of the computer. The mechanical things such as tps settings, throttle along those lines. Like I mentioned before anything that carries 42#ers and up is almost surely going to need an on board chip or pcm flash to correctly run. A combination featuring 36# injectors certainly has driveability to gain with an on board chip or pcm flash as programming tailored to your particular combo will always turn out the best results. Even with a finely tuned MAF there is almost always room for improvements through tuning at the 36# level. 42# injectors is really the cutting off point for high impedence injectors. A stock pcm is programmed to run on high impedence injectors. At the 50# levels most injector companies switch from High to Low impedence injectors which isn't as simple as a common chip tune. At this level either the pcm is re-flashed to except low impedence programming or there is an inline box with takes the low impedence signal from the injectors and converts it to high impedence ahead of the pcm. I believe the company which sells this inline box is located here in Pleasanton or this is the location of a distributor selling such a product. [/QB][/QUOTE]
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