Anyone runnin a 150 4stroke???

[ssiredfish]

Ive got a 14.5x17 off my Johnson if your other doesn't work. Good price, short drive.......

[tsubaki]

Thanks ssired!
I've got a 14.8x17al in the cuddy for a spare and just too sorry to try the other one I've got.

[ssiredfish]

that looks familiar!!!!!

[phatdaddy]

if i read this right,
at 37 mph, tsu is getting 2.63 mpg
at 38 mph, ssir is getting 2.8 mpg

[leeprice72]

Took ours out for first time on Saturday. I agree it does push it great. We got 46 mph (gps) without stretching the rpms out. I will play around with it a bit more this weekend.

[Destroyer]

Originally Posted by phatdaddy

if i read this right,
at 37 mph, tsu is getting 2.63 mpg
at 38 mph, ssir is getting 2.8 mpg

Phatdaddy, I'm with you on this one I think. I don't see much difference between the 2. But to me it looks like tus is doing better overall. Using their figures:

tsu gets 44 MPH @ 5100 RPM using 2.32 MPG
ssir gets 42 MPH @ 6000 RPM using 2.4 MPG

So Tsubaki is going 2 mph faster while using less gas and less rpm (wear and tear) on his engine.

Ssiredfish, if it were me I'd put a 19P on your engine and give it another shot. I think you would definately benefit from the added pitch.

[Blue_Runner]

It would be a better comparison if tsub were running the 17 pitch prop but looks to me like ssir is getting around 4 mpg at cruise while tsub is getting around about 2.7 mpg.

[RidgeRunner]

I was about to comment on this one. The overall fuel burn for the 4-stroke is much better. Ssired fish, congratulations on the new power. TSU, that is lazy on the RPM, the 17 may help your mileage. Both sound great to me. If I were to cruise around the best I see is 2.5MPG. Most of the time the 250 2-stroke averages ABOUT 2MPG all around. Less is possible. The price to pay for cheap HP.