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Thread: 40 mph at 1000 rpm??!?!?
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10-10-2007, 11:42 AM #1
40 mph at 1000 rpm??!?!?
Just like the title says, does that sound right to you? below is what i have done to the car. would anything affect this? or should i get my shift points retuned? someone help please!!!
2000 Arctic White trans am, ws6 hood, ws6 air box, slp lid, slp smooth bellows, slp loudmouth exhaust,shift kit, rebuilt trans, LS6 intake, 3.73 gears, Shaner S3 p/p throttle body, and a tune . SFC. C6 ZO6 rims 18" in back 17" in front. Drilled and slotted rotors.
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10-10-2007, 11:50 AM #2
not 100% sure but i believe the 3.73 gears mean ur an m6.....if so then theres nothing wrong with that.....at 65mph im at 1400 RPM in 6th......wut gear are u in when ur doing 40?
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10-10-2007, 12:02 PM #3
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- Jul 2005
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- Jacksonville, FL
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Must be an A4 if talking about getting shift points retuned. Check out a RPM/MPH calculator like www.f-body.org/gears/ Did you get the PCM tuned for the new gears?
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10-10-2007, 12:09 PM #4
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- Jacksonville, FL
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OK, just re-read your signature - you don't have 3.73's yet, right? According to that calculator with stock tire diameter 1000 RPM at 40 MPH is spot on for 2.73's in 4th.
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10-10-2007, 12:26 PM #5
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10-10-2007, 12:34 PM #6
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10-10-2007, 12:53 PM #7
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- Jul 2005
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- Jacksonville, FL
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Maybe the difference is the diameter of the 18's? That calculator lets you change the diameter or put in different tire sizes too, then recalculates. But yes, whatever is going on a tune can get your speedo right.
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10-10-2007, 01:00 PM #8
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- Mar 2007
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- Milwaukee
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- 2,154
Red- 2000 Trans Am
I loved freeway racing with 2.73s, that why i took my old formula cross country
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