EFI 200 VS Optimax 200

gwapa

Recruit
Joined
Apr 27, 2008
Messages
3
Dear Caps
I have two EFI 200 year 1998 2.5 L. As you know its gear ration is 1.85:1.
I wish to change for two Optimax 200 which have 1.75:1 gear ration

What should the performance be?
Should I change the prop?
At the same motor RPM what will be the performance of each?
Regards
Gwapa
 
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