1998 Merc efi 150s vs New 175 ETecs

[Bend-Lure]

I have a 1998 Seacraft center console with twin merc 150 efis. How would the fuel economy compare if I were to re-power with 175 ETecs? Anyone have a ballpark at cruise, WOT and troll? I really don't have hard numbers on my economy now, but it isn't spectacular.

Thanks for any info you guys have.

Edited August 27, 2009 by Bend-Lure

[autobaun70]

are there any other issues with the motors in terms of reliability or performance? While you may pick up as much as a 1/3 in terms of fuel economy, you can buy an awful lot of gas for the cost of a repower.

[Bend-Lure]

No major problems. Just wondering more than anything. Thanks.

[Drailey]

I have a 1998 Seacraft center console with twin merc 150 efis. How would the fuel economy compare if I were to re-power with 175 ETecs? Anyone have a ballpark at cruise, WOT and troll? I really don't have hard numbers on my economy now, but it isn't spectacular.

Thanks for any info you guys have.

Probably 50% saving on fuel with the E- tecs

[ScarabChris]

Probably 50% saving on fuel with the E- tecs

Agreed....not to mention a better top end due to the added HP. They will also be much quieter, almsot silent compared to the Merc EFIs, no smoke and no shaking.

Actually its apples to oranges.

[Drailey]

Probably 50% saving on fuel with the E- tecs

He'll have more power, and savings, he'll never believe it's the same boat!

[SCAngler]

I have a 1998 Seacraft center console with twin merc 150 efis. How would the fuel economy compare if I were to re-power with 175 ETecs? Anyone have a ballpark at cruise, WOT and troll? I really don't have hard numbers on my economy now, but it isn't spectacular.

Thanks for any info you guys have.

the 175 e-tec will get 25 to 35 % better on fuel than you are getting now and if you use the xd-100 oil and setting 30 to 50 % better on oil. if propped right you should get 3 to 5 mph faster

Edited September 8, 2009 by SCAngler