Opti 150 Consumption

[brucehawsker]

Farfetched has now done 138 NM, and used 141.3L of fuel. The engine has run for 13 hours. She has used just over 6L of oil. Are these consumptions in line with expectations?

[Louise]

Yes Bruce, all OK. Now stop worrying and carry on enjoying her!

[brucehawsker]

Engine may be OK. Bank manager less so. But guess this was pre-announced!

[Wayne Rogers]

Hi Bruce,I have just set my fuel flow meter up properly this week-end so should get a better idea what mine is doing.I don't think it is as good on fuel as yours but I have been giving her a bit of teddy.It will be interesting to see what the difference is between a 150 and the 225 is.I will post my finding after I try her this week-end.

[Roy Smith]

Wayne
Would love to know the fuel comsumption as i am looking for a new big engine 225/300 lots of people love the two strokes i know, but are they nearly as good as the four strokes, Eg we went from northerney mariner Hayling Island to Weymouth and back then northernney to Yarmouth and back plus a bit of messing about total 189 nm on 240 lts avarage about 35 knts, being honest would it cost alot more.

[simmons0]

Any of you 2 stroke owners care to hear my years fuel figures?

[brucehawsker]

NO. No. nO. no

Which word do you not understand?

[swginn]

Bruce, that gives you just under 1nm/litre. Mine so far has averaged just over 1nm/litre but I can get her to do 1.3-1.4 if I restrain my throttle hand, this doesn't happen very often though

Also you'll find that the oil usage will significantly improve afte the 10hr over-oiling period. So has the silly grinning stopped yet (love that exhaust note!! )

[brucehawsker]

Silly grin season is still there. I love the responsiveness of the throttle in nthe Solent chop and am finding out how to keep the ride as smooth as possible by judicious use of the throttle. It is a very good learning technique - if you get it wrong, you certainly know. Actually she is very forgiving of my mistakes!! It is my caution which is limiting the speed!!

The noise is wonderful also!

This is a 47 year old who has just discovered the need for speed! Reminds me of Top Gun - yes, I am old enough to have seen that first time round!!

[pmorgan]

I am having a bit of a love hate relationship with my fuel flow meter. Previously, it was reading US gallons which did not help me that much, now I have changed it to litres per hour which unfortunately makes it all to easy to work out how many £’s and hour is being consumed !

[Richard B]

Originally Posted by brucehawsker

Top Gun - yes, I am old enough to have seen that first time round!!

Bruce, I hope you've bought a Geko helmet 'cos you're going to get a slap!

[Wayne Rogers]

Don't worry Bruce I've just ordered my Gecko helmet in white and I'm going to put an Iceman or Maveric sticker on the front on it,I loved the Top Gun film.And at 46 I also have a need for speed.

[Wayne Rogers]

Roy
I will let you know my findings on fuel when I find them.Hopefully this week-end.

[Rogue Wave]

Originally Posted by brucehawsker

Silly grin season is still there. I love the responsiveness of the throttle in nthe Solent chop and am finding out how to keep the ride as smooth as possible by judicious use of the throttle. It is a very good learning technique - if you get it wrong, you certainly know. Actually she is very forgiving of my mistakes!! It is my caution which is limiting the speed!!

The noise is wonderful also!

This is a 47 year old who has just discovered the need for speed! Reminds me of Top Gun - yes, I am old enough to have seen that first time round!!

I like this guy! that's why I call em happy max's. I Think you will find your oil consumption goes down after about twen hours. I believe it uses more in the running in period.

whilst you are in the shop buying the helmet get some footstraps.

[Mennojsh]

i had an 1997 150 hp carburated yamaha v6 on my tornado 6.5 mtr
had 23 pitch yamaha pro prop 1,86:1 lower unit gear ratio
topspeed 47 knots at 5300 rpm
loved this engine really stong and reliable and pretty good on fuel

1000 rpm 8 knots 7,4 ltr/hour
2000 rpm 18 knot 18,3 ltr/hour
3000 rpm 26 knot 26,7 ltr/hour
3500 rpm 34 knot 32,3 ltr/hour
4000 rpm 38 knot 42,6 ltr/hour
4500 rpm 41 knot 52,4 ltr/hour
5300 rpm 47 knot 67 ltr/hour

best speed for cruising was between 3500 and 4000 rpm

i am going too post one for the new engine soon Yamaha VMAX HPDI 150
new engine is at same boat ,height ,same prop only 2.00:1 lower unit gear ratio on the hpdi .i am going too try the bigger 25 pitch prop too


can you guys post some lists of the optimax engines
greetings menno

[brucehawsker]

Why can't I post a .wav file from Top Gun?

[Wayne Rogers]

I don't know but the Solent TAKES MY BREATH AWAY

[Rogue Wave]

I guess RIBS do bring out the Maverick in one

[simmons0]

Originally Posted by brucehawsker

Why can't I post a .wav file from Top Gun?

You have to upload it elsewhere and post a link to it.
The "attach" on these boards is only for picture files.

[Searider]

Mine used 102 litres for the trip from Hamble to Weymouth and back. 110 - 120 miles?