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Inside a Drag Race Transmission

Making A Ton Of Power? We Show You How To Get It To The Ground When We Take You Inside a Drag Race Transmission.

By , Photography by
GEAR RATIO EXAMPLES
GEAR FIRST CASE SECOND CASE THIRD CASE OVERALL RATIO
First 1.25:1 1.25:1 1.25:1 3.75:1
Second Direct 1.25:1 1.25:1 2.5:1
Third Direct Direct 1.25:1 1.25:1
Fourth Direct Direct Direct 1:1

Note that the 1.25:1 ratio was just a random choice. Lenco makes planetary gearsets with ratios ranging from 1.16:1 to 1.73:1. The overall ratio is determined by multiplying all the low-range ratios together.

SOURCES
G-Force Transmissions
150 N. Grant St.
Cleona
PA  17042
Lenco Racing Transmissions
Lemon Grove
CA
Jerico Performance Products
2208 Pitts School Rd.
Concord
NC  28027-9731
Tremec, a division of Transmission Technologies Corporation
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