bigmike253

Is my fuel tank too small? :-)

I am putting in a 55 gal tank, I currently am running 2 Merc 5.7l 300hp tempest motors. The boat has yet to get wet with me at the wheel so I have no idea what kind of mileage I will get. What are your thoughts?

spazboz

iTrader: (2)

My Nova holds 104 gallons for twin 270 mags.

Ted G

iTrader: (1)

That's a little small. My 311 has twin 500's and gets a little better than 1 mpg . If you can eek out 1.5 mpg with the small blocks you need gas every 60-65 miles or so. (leaving some reserve)

1MOSES1

that is way too small...the 292 fastechs with twin 6.2's have 113 gallon tanks...my dads non go fast boat with (1) 350 mag has a 55 gallon tank. you will not have good range with 55 gallons on anything twin screw. trust me.

t500hps

I agree with the above....you might eek out 2.0 mpg and 55 gal will go quick.

jmrapp

I have a 242 with twin 383's. My tank is 107 gallons. I get about 1- 1.5 miles per gallon. It also depends a lot on how you drive it.

Expensive Date

If you ever do a long run thats only about an hour.If you are sure you will always stay local you are fine.But 55 gallons is not a lot for twins even small blocks.