|
| Author |
Message |
    
Fred Sykes
New member
Username: gin_ricky
Post Number: 2
Registered: 10-2007
| | Posted on Monday, October 29, 2007 - 01:50 am: | 
|
I am the owner of a 46 Post with twin Detroits (671TI @ 450HP each)with Capitol Transmissions. As both of these engines are of 1978 vintage they both require a full overhaul for approx. $50,000. Instead of having the Detroits overhauled I am contemplating replacing them with twin Recon Cummins (6CTA8.3 @ 430HP each)for around the same cost. My thinking is that if I purchase the Cummins the advantages are that I am getting a much more modern engine (1997), more quieter, compact & fuel efficient. Eventhough I am steeping down from 450HP each to 430HP each shouldn`t matter as the weight/power ration is much greater than the Detroits. Can anyone offer any valid reasons or past experiences as to why I should or shouldn`t proceed? |
peter clarke
Member
Username: boattuner69
Post Number: 6
Registered: 12-2007
| | Posted on Wednesday, December 05, 2007 - 09:16 pm: |
|
I would vote for the cummins recon. But I would check out a few things first. Make sure that the recons don't exceed more than 1 hp/cubic inch. .75 hp is even better otherwise the engines won't have the longevity you would hope for. Some of these newer diesels have been tweeked too much to get too much HP from a small block deisel. They just can dissipate the heat well enough. Cummins generally stays well within the safty range in the ones I have seen. Cummins like you said will be more efficient which is a big factor these days with fuel prices being what they are. Also did you check trany compatability. It may be as simple as a new bell housing or it may requier new transmissions as well which should be factored in.
Peter |
|
|
|
Product Categories |
| Engine Parts · By Brand |
| Engine Manuals · By Brand |
| Books |
| General Repair and Maint. |
| Care and Repair |
| · Adhesive and Sealants |
| · Bottom Cleaners |
| · Cleaners Wax and Polish |
| · Mops Brushes and Sponges |
| Covers and Tops |
| · Bimini Tops · Hardware |
| · Cover Accessories |
| · Motor Covers |
| · Universal Boat Covers |
| Electronics |
| · Gauges and Compasses |
| · Mounts and Accessories |
| Electrical |
| · Batteries & Chargers |
| · Battery Accessories |
| · Dockside Electrical |
| · Electrical Terminals |
| · Electrical Wire, Cable |
| · Fuses, Fuse Holders |
| · Switches |
| · Wire Ties, Clips, Tape |
| Fuel Systems |
| · Fuel Tanks |
| · Fittings, Fills, Vents |
| · Hose & Primer Bulbs |
| · Filters, Senders, Caps |
| Hardware |
| · Deck Cabin Hardware |
| · Molding and Rub Rails |
| · Rails and Fittings |
| · Snaps Shackles and Hooks |
| · Windshield Hardware |
| Lighting |
| · Cabin Lights · Light Bulbs |
| · Navigation Light Parts |
| · Navigation Lights |
| · Spotlights · Parts |
| Mooring and Dock |
| · Boat Fenders · Boat Hooks |
| · Buoys and Markers |
| · Deck Cleats · Dock Edging |
| · Dock Parts and De-Icers |
| · Fender Covers and Holders |
| · Keelshield / Toon-Tectors |
| · Ladders and Platforms |
| Prop / Trim /
Transom |
| · Jack Plates, Wedges |
| · Mounting Brackets |
| · Outboard Stands |
| · Trim Tabs, Stablizers |
| · Prop Nuts, Locks, Pins |
| · Propellers · Wrenches |
| Pumps |
| · Aerator Pumps |
| · Bilge Pumps |
| · Drain Plugs and Tubes |
| · Hose · Through Hull Fittings |
| Rope and Cordage |
| · Anchor Line · Dock Line |
| · Fender Line · Bulk Rope |
| · Shock Cord and Bungee |
| Safety Products |
| · Horns Bells and Whistles |
| · Mirrors |
| · Vents Blowers and Hose |
| Sanitation |
| · Fresh Water Pumps |
| · Marine Toilets |
| · Sanitation Chemicals |
| · Sanitation Pumps/Hose |
| · Water/Waste System Parts |
| Seating |
| · Deck Chairs and Tables |
| · Fishing Seats |
| · Lounge Seats |
| · Pontoon Furniture |
| · Seat Bases and Pedestals |
| Steering / Control |
| · Control
Boxes |
| · Control
Cables |
| · Hydraulic
Steering |
| · Mechanical
Steering |
| · Rigging · Steering
Wheels |
| Tools / Shop Supplies |
| · Lubricants & Additives |
| · Motor Flushers |
| · Tools & Test Equipment |
| Trailering |
| · Boat Guides/Motor Support |
| · Hitches Balls Couplers |
| · Rollers Brackets Springs |
| · Tires Wheels and Carriers |
| · Trailer Hubs & Bearings |
| · Trailer Jacks |
| · Trailer Wiring and Lighting |
| · Winches Straps Tie Downs |
| Manufacturer List |
|
