???????????????????

[basserman]

i would just like to know whats the diffrences between the 4strokes, 2stroke HPDI units and normale 2stoke

only resone is i'm thinking of getting a new boat and as i already have a 2stroke (love it all but it's fule hunger) but would like to troll more and need something thats less thirsty now i know 4strokes are good for trolling but not sure the diffrence in the HPDI (high pressusre direct injection) ???
natrauly the almighty $$$$$ will tell me which way to go but would like to go

[NQCairns]

I will not be much help here but either the 4 or hpdi will work just as well for trolling saltwater. If you do any slow freshwater trolling then the hpdi will idle down way lower than any 4 stroke if you wanted it to.nq

[mackmauler]

basser, got a bit of a fright with your big question ;D

once you go 4 stroke you wont ask again.

[Big_Kev]

Bass unless you are going for a larger horsepower donk then four stroke is the only way to do it.
Once you have done it you will wonder why you hadn't done it years before. :D
Cheers Kev.

[basserman]

the choise is between a 175 HDPI
or a 140 4stroke ;D

[SeaHunt]

A fair bit of horse power difference there... If that is not an issue then 4 stroke would be better for trolling long periods. The new direct injection 2 strokes use a lot less fuel than the old carby models but it is still more than the equivalent EFI 4 stroke. Also 2 stokes burn oil, so more exhaust fumes (which is more noticeable at trolling speed) and plug fowling after long periods of low revs.

[basserman]

yeh is a big diffreenc thats why i'm not too sure witch way to go
but after what you said about trolling that makes sence
i'm sure i'll get used to not going like a rocket on top of the water ;D ;D

[dooley]

depends on the hull and whether you'll need the extra horsepower offered by the 2 stroke and what the weight diff is between the 2 engines.

the 4 stroke will have better resale.

[mackmauler]

What hull is it for? who makes a 140 4 stroke as well ???

[grinder]

hey bass I have a 90hp tohatsu 2 stroke
I can troll at 100 rpm about 3kms and hour according to the gps and from what I gather from the user guide it is running at 120 to 1 has plenty on grunt also I know its not a lot to do with your question but there are other options
as for FUEL you wont bet it at the bowser


Grinder

[basserman]

rob the 140 is made by suziki

the hull it will be going on is a Streaker 585 tournament glass hull
20*deadrise
hull weight 900kg power range of 115-200hp