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Old 02-12-2013, 08:09 PM
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Milestone

Time for a tune?

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Old 02-12-2013, 08:10 PM
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Time for big turbo, and tune.
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Old 02-13-2013, 10:20 AM
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Last time I hit a Milestone it ripped out the oil pan........just sayin..
coming up rapidly on the 70 mark,,but then the 5 yr side is fixin to end in may....in which case your is too..so your completely run out now....
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Old 02-13-2013, 01:00 PM
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68 MPH and only 2050 RPM's.... That's pretty good.

OH, and bye bye warranty......
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Old 02-14-2013, 09:44 AM
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Originally Posted by solman98
68 MPH and only 2050 RPM's.... That's pretty good.

OH, and bye bye warranty......
Noticed that also as my 09 2.4 auto pulls 2600RPMs at 70MPH.
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Old 02-14-2013, 12:44 PM
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Thats one of the nice things with the ss's the rpms are lower due to the gearing.
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Old 02-14-2013, 12:56 PM
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Originally Posted by bigjacksauto
Thats one of the nice things with the ss's the rpms are lower due to the gearing.
What gearing are the SS's using? I know the LS/LT manuals use a 4.17 and the auto's use either a 3.91 or a 3.26(?) depending on year and if it's a panel. The 4.17 & 3.91 are pretty low already. So for the SS to turn that low, it must use higher gearing, not lower.
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Old 02-14-2013, 05:25 PM
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Originally Posted by solman98
What gearing are the SS's using? I know the LS/LT manuals use a 4.17 and the auto's use either a 3.91 or a 3.26(?) depending on year and if it's a panel. The 4.17 & 3.91 are pretty low already. So for the SS to turn that low, it must use higher gearing, not lower.
My SS has a 4.05(FQ7 RPO code). Turns about 2900 at 70mph.

If the OP's is an automatic, he most likely eased up on the throttle when taking the picture, thus the lower RPM's noted.
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Old 02-15-2013, 10:38 AM
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2900? Somewhere around 23-25 in my SS..dont remember exactly,65 is just over 2000...anyways..if your rpms are dropping off when lifting then your TQ isnt locked up..when it is locked up your running direct drive like a clutch...also the final ratio is different between the auto/stick too, meaning theres more to it then just diff gears.. final trans gearing plays in there
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Old 02-15-2013, 11:51 AM
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Yes it's time for a tune-up (plugs), to answer your question.
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