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08-29-2021, 04:29 PM
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#21 |
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Member
Join Date: Dec 2009
Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66
Posts: 314
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Re: starting line gear ratio?
guys, thanks for the input. the charts are very neat. very possibly the Dick Miller 11.25 # was with a torque converter [didnt say in the book] and when you ad in torque multiplication, it changes everything.
with mine,as is, at 13.69, its high from Miller and low for both the 2 charts. however, I will rather be under geared than over reved at the stripe. plus I could just gain more MPH if the engine will continue to pull. have to wait till Thanksgiving to run at Vegas [that just sucks-every track in the country is runnin' except Vegas] Thanks again, all. Rod in AZ |
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08-29-2021, 08:45 PM
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#22 | |
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Junior Member
Join Date: Apr 2017
Posts: 93
Likes: 19
Liked 30 Times in 16 Posts
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Re: starting line gear ratio?
Quote:
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06-29-2023, 05:43 PM
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#23 |
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Junior Member
Join Date: Apr 2011
Posts: 10
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Re: starting line gear ratio?
Need Help,2350# 15x33 tire,6.20 rear gear. going stick racing with G-Force 2000,Ram billet Clutch as reccomended by Mike @ Ram. tranmission is coming from G-Force with 3.167 1st,2.148 2nd,1.576 3rd1.250 4th 1.000 5th according to my calculation SLR of 19.63 ,engine makes 850@8750 and peak torque 595@6500 is this too much SLR ?
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06-30-2023, 02:30 AM
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#24 |
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VIP Member
Join Date: Jun 2009
Location: Boulder City, Nevada 89005
Posts: 2,732
Likes: 2,797
Liked 2,476 Times in 697 Posts
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Re: starting line gear ratio?
That sounds like a lot to me in that light a
racecar and that HP!
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John Irving 741 Stock 741 Super Stock |
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06-30-2023, 10:44 AM
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#25 | |
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Senior Member
Join Date: Oct 2006
Posts: 615
Likes: 310
Liked 685 Times in 196 Posts
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Re: starting line gear ratio?
Quote:
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Mike 7570 A/SA Last edited by Mike Gray; 06-30-2023 at 10:47 AM. |
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06-30-2023, 12:17 PM
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#26 |
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Senior Member
Join Date: Apr 2020
Location: Phila, PA
Posts: 793
Likes: 0
Liked 733 Times in 384 Posts
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Re: starting line gear ratio?
Yes that seems very high.
Without changing anything, I would think it would like launching in 2nd much better than 1st gear. Stan |
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07-02-2023, 05:32 PM
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#27 |
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Member
Join Date: Apr 2022
Location: Noblesville,In
Posts: 108
Likes: 7
Liked 58 Times in 36 Posts
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Re: starting line gear ratio?
Hey guys do the math for me and tell what you think.
987 Hp 5.83 rear gear 2.81 1st gear G force 2400 3200 lbs 33 x14.5 Goodyears Really don’t want to go over 9500 but I can in 4th if I have to
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SS/AH 328X |
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07-02-2023, 08:36 PM
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#28 | |
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Senior Member
Join Date: Apr 2020
Location: Phila, PA
Posts: 793
Likes: 0
Liked 733 Times in 384 Posts
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Re: starting line gear ratio?
Quote:
► 5.83 * 2.81 = 16.3823 Looks good to me. That is just about 1% different than I calculate as a good starting place. Stan |
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