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Old 08-19-2013, 07:07 PM   #1
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Quick question about gears and tuning

Last week I went and had my 2000 formula tuned and dynoed. Now I have a bearing makeing a slight roaring noise in the rear, I have 3:23 gear ratio now, since i've got to go into the rear end, now is the perfect time to install some new gears if i'm going to.
My question is , if I put 3:73 gears in it, will it mess up my performance any. The guy that did my tune said that if I install a different gear ratio, I need to drive back up there and let him program it in. What does he mean by that? and will it mess up my shift points or anything like that, it is running excellent for me right now, I dont want to mess anything up. The drive up there is 2 hours 15 minutes.
Also, will 3:73 gears make that much of an improvement, or should I stay with 3:23 , or what do you guys suggest, I drive it alot, but also have fun with it on weekends at the track. Any help, suggestions will be greatly appreciated. Thank you
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69 Firebird February F-Body of the month 2009 .......Tracy
2000 Formula -Sub frame connectors, strut tower brace, QTP stainless longtubes/ele. cutout,
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Old 08-19-2013, 07:15 PM   #2
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You'll have a faster launch, but a top speed loss. And yes, you'll need to have your PCM reprogrammed because your speedo and shift points will be off.
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Old 08-19-2013, 07:20 PM   #3
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ok, I think i'll just put new bearings in and stay like I am. Thank you
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69 Firebird February F-Body of the month 2009 .......Tracy
2000 Formula -Sub frame connectors, strut tower brace, QTP stainless longtubes/ele. cutout,
cat delete, stall, tranny cooler, Fast Toys clear air lid, Fast Toys ram air, Nitto Extreme NT555R Drag Radials.
342rwhp - 345 torque, 1/4ml. 12.7 @ 106
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Old 08-19-2013, 07:26 PM   #4
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Good call. I also have 3.23 gears and I like them. I really don't feel like I need any more take off power, I also don't want even worse fuel economy.
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Old 08-19-2013, 07:54 PM   #5
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Thats what I was thinking, I dont think it would be worth it for me in the long run, after buying gears, then I have to get somebody to install them cause i'm scared to try it myself, and idk if dude will retune it for free. I don't think it will increase my time but a little, and that would be alot of money I can put towards something else.
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69 Firebird February F-Body of the month 2009 .......Tracy
2000 Formula -Sub frame connectors, strut tower brace, QTP stainless longtubes/ele. cutout,
cat delete, stall, tranny cooler, Fast Toys clear air lid, Fast Toys ram air, Nitto Extreme NT555R Drag Radials.
342rwhp - 345 torque, 1/4ml. 12.7 @ 106
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Old 08-19-2013, 08:30 PM   #6
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If you had a lower gear ratio it might be something to consider. But going from 3.23 to 3.73 isn't worth it in my opinion.
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