Next Goodwin-Powered Platinum Edition Skater is in the Works
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04-06-2016, 11:00 AM
#13
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Do I think turbos are great...of course. Do I think merc are cool...yup. If I had the check book I would still want neither.
04-06-2016, 07:50 PM
#15
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Join Date: Jan 2016
Location: New York
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Pushrod engines are obsolete, you will never compete with an overhead cam turbo motor trust me i had tried and wasted a lot of MONEY. Just look around from jet ski motors to 1650 mercs and all real fast super cars no push rods the 1950s are gone.
04-06-2016, 09:15 PM
#17
Your right there are good motors with push rods, lots and lots of them. almost all were push rods until about 4 years ago.
Truth is overhead cams are the way of the future. The number one failure on a pushrod motor was the valve train. Overhead cams greatly reduce that issue.
Truth is overhead cams are the way of the future. The number one failure on a pushrod motor was the valve train. Overhead cams greatly reduce that issue.
04-06-2016, 09:40 PM
#18
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Your right there are good motors with push rods, lots and lots of them. almost all were push rods until about 4 years ago.
Truth is overhead cams are the way of the future. The number one failure on a pushrod motor was the valve train. Overhead cams greatly reduce that issue.
Truth is overhead cams are the way of the future. The number one failure on a pushrod motor was the valve train. Overhead cams greatly reduce that issue.
04-07-2016, 01:57 PM
#19
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Your right there are good motors with push rods, lots and lots of them. almost all were push rods until about 4 years ago.
Truth is overhead cams are the way of the future. The number one failure on a pushrod motor was the valve train. Overhead cams greatly reduce that issue.
Truth is overhead cams are the way of the future. The number one failure on a pushrod motor was the valve train. Overhead cams greatly reduce that issue.
04-07-2016, 02:27 PM
#20
? The size and weight of overhead cams?
Many less parts, many less contact or friction points, many less items to fail.
Size wise not any bigger
Weight wise I never weighted all the parts of a overhead cam system to a Heavy duty push rod setup but I'm pretty sure the overhead cam setup is lighter in that manner also.
Biggest limiting factor has always been rpm wear and tear on the valve train in a boat.
Overhead cams really get rid of that issue or at least make that issue much less of a issue.
Every new car / truck manufacturer run overhead cams, because there more reliable and they can spin the rpm up for more peak power.
Motorcycles have been that way for years.
Even small engine stuff on higher end mowers are going that direction.
Many less parts, many less contact or friction points, many less items to fail.
Size wise not any bigger
Weight wise I never weighted all the parts of a overhead cam system to a Heavy duty push rod setup but I'm pretty sure the overhead cam setup is lighter in that manner also.
Biggest limiting factor has always been rpm wear and tear on the valve train in a boat.
Overhead cams really get rid of that issue or at least make that issue much less of a issue.
Every new car / truck manufacturer run overhead cams, because there more reliable and they can spin the rpm up for more peak power.
Motorcycles have been that way for years.
Even small engine stuff on higher end mowers are going that direction.
