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Old 09-17-2018, 02:56 PM   #1
Gary Federico
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Default Re: When do you shift

@ 2850 Lbs on the stop at .000, shift .75, 4200 stop rpm, between 3.75 & 4.25 sec. in the stop. 10.90@152
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Old 09-17-2018, 05:16 PM   #2
Keith 944
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Default Re: When do you shift

I’m not saying, But its somewhere between zero and 10.90. 😆
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Old 09-17-2018, 07:06 PM   #3
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Talking Re: When do you shift

Right before the holes appear in the oil pan !
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Old 10-03-2018, 11:46 AM   #4
S/ST J718
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Default Re: When do you shift

Quote:
Originally Posted by Keith 944 View Post
I’m not saying, But its somewhere between zero and 10.90. 😆
Keith, whats up with that.....Hahaha


I'm a slow guy so TS .02 shift at 1.40 cruising at a high 4,600
10.90 at 126.50
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Old 09-17-2018, 08:27 PM   #5
Superstreet29
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Default Re: When do you shift

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Originally Posted by Gary Federico View Post
@ 2850 Lbs on the stop at .000, shift .75, 4200 stop rpm, between 3.75 & 4.25 sec. in the stop. 10.90@152
Do you shift that far out to make the 60’ more consistent?
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Old 09-18-2018, 04:04 PM   #6
Gary Federico
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Talking Re: When do you shift

The transitions were smooth & that's what I looked for. But Keith has the inside stuff, he just doesn't share as well as play well with others on the 1320.
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Old 09-18-2018, 09:07 PM   #7
Superstreet29
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Default Re: When do you shift

When I had my big motor in the car I could go on at .001 and shift at .20 and it was consistent. When I put the 467 back in, it seems to struggle sometimes shifting that early and the 60s aren’t consistent. The farther out I move the shift with this motor, the more consistent it seems to get. I think it knocks the breath out of this smaller motor when the air is bad. That’s why I was curious
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Old 09-18-2018, 10:55 PM   #8
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Default Re: When do you shift

I messed around with shift points a bit last year and didn't notice any difference in consistency, but I did pick up some MPH shortening the shift from .65 to .30 (first timer is at .15). This was on my S/G TBird which is pretty light at 2465 w/driver and a 600" motor.
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Old 09-18-2018, 11:53 PM   #9
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Default Re: When do you shift

Yep 2820 lbs is different is believe.
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Old 09-22-2018, 09:02 AM   #10
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Default Re: When do you shift

I think weight and HP makes a big difference in how early you can get away with shifting
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