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Changing injector data

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Old Sep 16, 2011 | 02:36 AM
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Default Changing injector data

I just bought Greg Banish's dvd that comes with a bunch of injector data. My HP Tuners should be delivered by UPS tomorrow. If I pull the current tune out of the computer and what's in my tune doesn't match what's in Greg's excel spreadsheet, what do I do? If I change it to the correct data, how will that affect my tune?
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Old Sep 16, 2011 | 07:05 AM
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If the current injector data is wrong, inputting the correct data will throw the rest of your tune off. At a minimum it would require a MAF/VE recalibration.
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Old Sep 16, 2011 | 07:14 AM
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I'm speed density, so I don't have a MAF to deal with. I'm not sure if I'm hurting myself or helping by learning how to tune starting with speed density. The is a loaded Dynojet about 30 miles from me, so I'm going to rent some time on that for VE tuning.
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Old Sep 16, 2011 | 10:06 AM
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you can accomplish alot of what you need to do on the street. Start learning there or even in the driveway before you spend money on dyno time.
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Old Sep 16, 2011 | 10:17 AM
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Definitely tune on the street. You can't get real world/condition data on a dyno. Just because you get max power on a dyno doesn't mean you're gonna get max performance on the street/track.
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Old Sep 16, 2011 | 03:59 PM
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It's a loaded Dynojet that I can do steady state VE tuning and WOT. I do plan on a lot of street tuning though.
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Old Sep 16, 2011 | 04:34 PM
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To each his own. I'm poor so all my tuning is done on the street. :-)
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Old Sep 19, 2011 | 11:03 AM
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Originally Posted by TurboAv
It's a loaded Dynojet that I can do steady state VE tuning and WOT. I do plan on a lot of street tuning though.
Use your two feet to populate what you can, and with a high stalled car it's a chore and you'll be guessing at the lower RPMs based on trends and histogram data. A loaded dynojet or any loaded dyno isn't going to get you better results than that.
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