MARINE conversion?
#11
#12
It can be done and would probably work very good
I have my motor already as we speak in the garage. I am sooo tired of everyone opinionating without any facts !! Mercruiser did make the 7.3 in marine trim now why it didnt fly god only knows, I ve never heard a single person that owned one speak up. They are incredible engines on the ground, so they have to wotk in the water as well. I know of one trawl boat in louisiana that has had a 6.9 converted for 20 years, I guess it isnt proven yet. If the parts werent so outrageous I would be done with mine already, but its hard being that mer Screwser wants $1900 for a marine starter alone !!! Gooduck sir.
#13
#14
Desygityaso,
FYI, you need NOT use a "marine starter" UNLESS your engine is "buried in the bilge" OR tightly enclosed. = NOBODY, that i've known over the last 3+ decades, on the "commercial waterfront" uses "special marine parts" for "OPEN installations", assuming that "regular parts" are available for the same/less $$$$$.
thanks for your input.
yours, tn46
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to ALL:
as i've now received a couple of "off forum" questions on this subject, let me give you a few bits of information:
1. it takes LITTLE HP to keep a "full displacement hull" at or below "hull speed", as these hulls (once moving) have a great amount of inertia & will just "ghost along".
2. it takes MUCH more power to get the hull to "hull speed".
3. "hull speed" is calculated as the square root of the "immersed waterline length" times a constant of 1.34. = in the case of the MV DUTCHESS SANALYNN, this is about 10.1 knots per hour. furthermore, her "cruising speed" should be about 7KPH, with the engine idling at least 75% of the time, making little or NO "wake" to disturb her surroundings.
as some here have doubtless guessed, i know "one H of a lot more" about hull design & construction than i do about POWERING any hull!
yours, tn46
FYI, you need NOT use a "marine starter" UNLESS your engine is "buried in the bilge" OR tightly enclosed. = NOBODY, that i've known over the last 3+ decades, on the "commercial waterfront" uses "special marine parts" for "OPEN installations", assuming that "regular parts" are available for the same/less $$$$$.
thanks for your input.
yours, tn46
---AutoMerged DoublePost---
to ALL:
as i've now received a couple of "off forum" questions on this subject, let me give you a few bits of information:
1. it takes LITTLE HP to keep a "full displacement hull" at or below "hull speed", as these hulls (once moving) have a great amount of inertia & will just "ghost along".
2. it takes MUCH more power to get the hull to "hull speed".
3. "hull speed" is calculated as the square root of the "immersed waterline length" times a constant of 1.34. = in the case of the MV DUTCHESS SANALYNN, this is about 10.1 knots per hour. furthermore, her "cruising speed" should be about 7KPH, with the engine idling at least 75% of the time, making little or NO "wake" to disturb her surroundings.
as some here have doubtless guessed, i know "one H of a lot more" about hull design & construction than i do about POWERING any hull!
yours, tn46
Last edited by texasnative46; 07-05-2011 at 10:55 AM. Reason: Automerged Doublepost
#15
#16
angelicO-,
in case you didn't notice, i'm SHORT of $$$$$$ & CANNOT afford a Cummins. = around here, good/used 12V Cummins engines sell for at least $2K, which is at least 1600USD more than the whole wrecked PU that i've found.
(yep, i'll strip it for re-sellable parts & recover at least a few $$$.- hopefully, ALL of my investment!)
the ONLY way that i can afford the project (at all) is by doing most of the work myself (with some help from family & friends), "scrounging" everything possible, recycling used lumber/fixtures/flooring & doing the houseboat "on the cheap". ======> my GUESS is that the boat will cost about 5-8,000USD to build.
yours, tn46
in case you didn't notice, i'm SHORT of $$$$$$ & CANNOT afford a Cummins. = around here, good/used 12V Cummins engines sell for at least $2K, which is at least 1600USD more than the whole wrecked PU that i've found.
(yep, i'll strip it for re-sellable parts & recover at least a few $$$.- hopefully, ALL of my investment!)
the ONLY way that i can afford the project (at all) is by doing most of the work myself (with some help from family & friends), "scrounging" everything possible, recycling used lumber/fixtures/flooring & doing the houseboat "on the cheap". ======> my GUESS is that the boat will cost about 5-8,000USD to build.
yours, tn46
Last edited by texasnative46; 07-07-2011 at 11:58 AM. Reason: missing word.
#19
Ive been trying to add a pic on this site,,,,its driving me nuts..not an expert with puters ,so if possible can I send it using email address...my address is geobasha@gmail.com.
let me know tn46.
george
let me know tn46.
george
#20
digr97,
SADLY, i still have NOT received the pictures to my email, either.
yours, tn
texasnative46@gmail.com
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digr97, et.al.,
FYI, i just found/bought a 1985 gray in/out NON-turbo 300D M-B sedan with ALL manual windows/sunroof AND a factory-installed Getrag FIVE-speed stickshift, with 246KM on the clock. = It was special ordered through the Canadian PX by an American LTC of the USAF & "privately imported" in 2001.
(When he imported the sedan, he KEPT the NON-US headlights/taillights/bumpers/etc & i'm getting those too.)
strangely enough, when i rotated to CONUS i wasn't allowed to bring my red M-B coupe back! = !@#$%^!
yours, satx
SADLY, i still have NOT received the pictures to my email, either.
yours, tn
texasnative46@gmail.com
---AutoMerged DoublePost---
digr97, et.al.,
FYI, i just found/bought a 1985 gray in/out NON-turbo 300D M-B sedan with ALL manual windows/sunroof AND a factory-installed Getrag FIVE-speed stickshift, with 246KM on the clock. = It was special ordered through the Canadian PX by an American LTC of the USAF & "privately imported" in 2001.
(When he imported the sedan, he KEPT the NON-US headlights/taillights/bumpers/etc & i'm getting those too.)
strangely enough, when i rotated to CONUS i wasn't allowed to bring my red M-B coupe back! = !@#$%^!
yours, satx
Last edited by texasnative46; 11-05-2012 at 12:07 PM. Reason: Automerged Doublepost