Tony
Founding Member
After two years of wrenching/screaming I fiinally splashed the Cig toight, only had time for about an hour of running.
Good part is, with all the weight shed from using aluminum parts it actually sounds like a powerboat instead of the gurgling, sputtering, boat is drowning from tips being just under the waterline sound. The boat planes off right at 2k which was unheard of before. I ran it for about half an hour at idle in gear with half an hour of 2 to 3k RPM inbetween.
Some points to ponder: Running on the hose I had what I thought was reversion isssues in one motor. After pulling the SM full length risers off tonight it was clearly condesation and only showing on the top half of the elbow on one side and the top half of the elbow extending down the top half of the riser about half the overall length on the other side. The rest of both pipes and both manifolds were dry as a bone. On the SBC manifolds the supplied rubber jumper hoses seem to be a tad bit kinked at the bend. Could this be the culprit of over/ under pressure at the point of entry into the riser jacket?
Seccondly, The "drilled" 160 degree Hardin T stats never made above 140 degrees on either motor "verified by IR thermometer". Could this be becase of the holes drilled?
Last, The 212 degree Hardin oil T stats never made oil temp above 200 degrees "again verified by an IR gun" Oil temp dropped down to about 150 once back at idle in gear. Cold oil pressure at startup is roughly 60psi per side, after 15 min at 3k rpm it dropped to about 25psi at idle and rose to 35-40 after running back at idle for a minute or two.
Somewhere between the block adapter output and the oil T stat input leaks like a sieve on both motors at temp, I knew this before from running on the hose, most likely an AN to AN seal problem.
Good part is, with all the weight shed from using aluminum parts it actually sounds like a powerboat instead of the gurgling, sputtering, boat is drowning from tips being just under the waterline sound. The boat planes off right at 2k which was unheard of before. I ran it for about half an hour at idle in gear with half an hour of 2 to 3k RPM inbetween.
Some points to ponder: Running on the hose I had what I thought was reversion isssues in one motor. After pulling the SM full length risers off tonight it was clearly condesation and only showing on the top half of the elbow on one side and the top half of the elbow extending down the top half of the riser about half the overall length on the other side. The rest of both pipes and both manifolds were dry as a bone. On the SBC manifolds the supplied rubber jumper hoses seem to be a tad bit kinked at the bend. Could this be the culprit of over/ under pressure at the point of entry into the riser jacket?
Seccondly, The "drilled" 160 degree Hardin T stats never made above 140 degrees on either motor "verified by IR thermometer". Could this be becase of the holes drilled?
Last, The 212 degree Hardin oil T stats never made oil temp above 200 degrees "again verified by an IR gun" Oil temp dropped down to about 150 once back at idle in gear. Cold oil pressure at startup is roughly 60psi per side, after 15 min at 3k rpm it dropped to about 25psi at idle and rose to 35-40 after running back at idle for a minute or two.
Somewhere between the block adapter output and the oil T stat input leaks like a sieve on both motors at temp, I knew this before from running on the hose, most likely an AN to AN seal problem.
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