Diesel Maelstorm 23 1st launch March 1989 video
08-31-2013 | 07:26 AM
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From: Freehold, NJ
Diesel Maelstorm 23 1st launch March 1989 video
I found this last night and thought you all might like to get a laugh. Don’t laugh too hard as this was a long time ago (the beginning of the video is long and painfully funny at times but thought I’d keep it in there)…
This is the first time our diesel Maelstrom hit the water in 1989. The drive was a SternPwr with a 1:1 gear ratio (lighter than an SSM); the engine was a 7.3L turbo with right about 300hp nothing fancy. Remember a Cummins B was only 210hp & 250hp the 300hp was not out yet in ’88 when we started this. With the higher rpm 7.3L you could run a 72C transmission with no problem behind it for a while anyway. The 7.3L was also very light, we were right about the weight of a BBC maybe 75lbs more.
The smoke you see when idling or planning is not what you think it was. In earlier boats we thought the governors in the fuel injector pumps did not allow for good throttle response because of the yield links in the DB2 fuel pumps. The engine you see there was the first one in a boat with NO governor. The counterweights and springs are all removed and the throttle was connected to the helix, so when you moved the throttle you control fuel flow directly even a carburetor doesn’t allow instant fuel flow like this did. You can see and hear the bark it had – LOL. That idea wasn’t as good in practice as we thought it would be on paper.
We made a few changes that day and got running about 65 mph, you can see the difference in the boat running as the video goes on. In the week or so after that we changed drive heights, as it was a little too high, gears, props etc, etc until it ran about 78 mph. The boats first race was Lake St Cloud and it finished 4th but way low on power, when we opened the hatched after the race the whole compartment was sprayed with water and oil, we had lost a head gasket and filled the block with water and water/oil mix was boiling out the valve cover breathers! When we pulled the engine we pulled the pan to replace bearings and main bearing webs 2, 3 & 4 had completely broken out of the block (bolts still screwed in the peices of block!) and only the two ends caps held the crank in place yet it ran, I don’t know how???
Enjoy - you can skip the first 5 minutes it's just us being silly driving to the ramp
http://www.youtube.com/watch?v=WVhVgU_wAPY
This is the first time our diesel Maelstrom hit the water in 1989. The drive was a SternPwr with a 1:1 gear ratio (lighter than an SSM); the engine was a 7.3L turbo with right about 300hp nothing fancy. Remember a Cummins B was only 210hp & 250hp the 300hp was not out yet in ’88 when we started this. With the higher rpm 7.3L you could run a 72C transmission with no problem behind it for a while anyway. The 7.3L was also very light, we were right about the weight of a BBC maybe 75lbs more.
The smoke you see when idling or planning is not what you think it was. In earlier boats we thought the governors in the fuel injector pumps did not allow for good throttle response because of the yield links in the DB2 fuel pumps. The engine you see there was the first one in a boat with NO governor. The counterweights and springs are all removed and the throttle was connected to the helix, so when you moved the throttle you control fuel flow directly even a carburetor doesn’t allow instant fuel flow like this did. You can see and hear the bark it had – LOL. That idea wasn’t as good in practice as we thought it would be on paper.
We made a few changes that day and got running about 65 mph, you can see the difference in the boat running as the video goes on. In the week or so after that we changed drive heights, as it was a little too high, gears, props etc, etc until it ran about 78 mph. The boats first race was Lake St Cloud and it finished 4th but way low on power, when we opened the hatched after the race the whole compartment was sprayed with water and oil, we had lost a head gasket and filled the block with water and water/oil mix was boiling out the valve cover breathers! When we pulled the engine we pulled the pan to replace bearings and main bearing webs 2, 3 & 4 had completely broken out of the block (bolts still screwed in the peices of block!) and only the two ends caps held the crank in place yet it ran, I don’t know how???
Enjoy - you can skip the first 5 minutes it's just us being silly driving to the ramp
http://www.youtube.com/watch?v=WVhVgU_wAPY
Last edited by HabanaJoe; 08-31-2013 at 07:30 AM.
