Evinrude 135 150 175 Lightning 1 V6 Lower Unit 1.78 Gears New Gears Bearings

Description

Lightning 1 Lower Unit With Custom Made In The USA 1.78 Gear Set
The Tooth Count Is 14/25 On These Gears
Manufactured And Heat Treated Right In Wisconsin
Please
Click Here
To See The YouTube Video
I Made Telling You About This Lower Unit
To Give You All Some Understanding Look At The Calculations Below
Assuming Your Engine Reaches 5800 Full Throttle RPM The Following Math Applies. As One Goes Up In Pitch,One Must Reduce Diameter To Maintain RPM In Most Cases. Prop Science Is A Black Art Guessing Game At Best
Most Lighter High Performing Hulls Will Have A Slip Of 8-12% When A Driver That Knows How To Trim And Setup "X Height" Is At The Wheel
This Lower Should Only Be Used On Light And Inherently Fast Hulls
Your Boat Should Not Exceed 940 LBS Dry Hull Weight Less Moto
r
This Lower Unit Should Not Be Used On Heavy Bass Boats..PERIOD
19P Prop
59
MPH@0%Slip
53
MPH@10% Slip
20P Prop
62
MPH@0%Slip
56
MPH@10% Slip
21P Prop
65
MPH@0%Slip
58
MPH@10% Slip
22P Prop
68
MPH@0%Slip
61
MPH@10% Slip
23P Prop
71
MPH@0%Slip
64
MPH@10% Slip
24P Prop
74
MPH@0%Slip
67
MPH@10% Slip
25P Prop
77
MPH@0%Slip
69
MPH@10% Slip
26P Prop
80
MPH@0%Slip
72
MPH@10% Slip
27P Prop
83
MPH@0%Slip
75
MPH@10% Slip
All Bearings Have Been Changed Out For Brand New Koyo USA Bearings,
Resealed Using OEM Seals etc.
RH Rotation -
And Now The Best Part!
1.78 Ratio USA Made Gears
No Other Lightning Has Them
This Lower Unit Is ONLY To Be Used On 135 150 175 200HP 60 Degree Motors.
NOTE
NOT TO BE USED ON BIG BLOCK 3.3 or 3.4L Motors!
Shipping To Continental 48 States VIA Fed Ex Ground