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Isuzu 17l MS 120Performance Questions

M

Mark Lamperd

Guest
" When fitting the Isuzu 1.7l

" When fitting the Isuzu 1.7l intercooled turbo with bravo1 leg to a 20 foot 1.5 tonne Aliminium boat with 12deg deadrise and 2.6m of beam.What sort of top speed and economy at cruising speed could I expect.Would this motor be working too hard on this sized boat.It seems a small motor to be putting out this much horse power,what sort of reliability and longivity could I expect out of it? "
 
"There are a lot of issues wit

"There are a lot of issues with this motor breaking pistons when they first came out. The newer motors have a redisigned piston that has helped. The new motors have a serial number starting with "88", the old motors start with "OM". There is a user group of 1.7 owners on yahoo. Might be worth looking over there for info specific to this engine.
http://groups.yahoo.com/group/cummins_mercruiser_120hp_DTI"
 
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