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09-28-2006, 06:16 PM #16Originally Posted by AlaskaStreamin86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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09-28-2006, 06:45 PM #17
Out board vs Jet drive
I think I need to stick to the plan. Jet pump and a big block chevy. That will make a fun combo in this boat. Old school with a twist of loud and obnoxious, how cool is that. I think my next fast boat needs to be a tunnel . That will take care of my need for high speed. All my friends have jets and I just gotta have one
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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10-01-2006, 07:05 PM #18
CVX20 repair
Well all the foam is out now so I can see the entire transom and the extent of the damage. I think it can be fixed but it is going to take me some time. This will be my second try at fixing up an older boat. The first one was not nearly this bad off.
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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10-01-2006, 07:07 PM #19
CVX 20 repair
Close up of the damage
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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10-29-2006, 08:53 AM #20
Place Diverter Shifter
I had to rebuild the place diverter shifter that came with the boat. The only part on the old shifter that wasn't rusted away was it's inner workings. After looking at the cost of new units it seemed that rebuilding the old one was a option. It's kind of heavy but I think it turned out well.
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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10-29-2006, 08:56 AM #21
Rebuilt place diverter shifter
Last edited by 86ENTICER; 10-29-2006 at 08:58 AM.
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-19-2006, 01:40 AM #22
CVX20 Repairs
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-19-2006, 01:42 AM #23
CVX20 Repairs
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-19-2006, 07:55 AM #24
CVX 20 Repair
Not had much time to work on the boat but I got some things done. I do have the pump totally pulled down. I looks like the shaft and housings can be saved but the rest is junk. Any suggestions on rebuilding the pump. Can I do this my self or do I need to send it off to an expert? Man that salt water was hard on the pump. I'm getting ready to order a rebuild kit from CP Performance. Not sure what impeller to go with I know it had a 9" A impeller but don't know for sure what cut it was. Don't know if it was an A, AA or whatever? This impeller thing is all new to me. I have the templates made for the transom wood and I cut and fitted the big 10 1/2" x 4" exaust tips. They look way cooler than the 1" factory flappers and I think they are going to sound really good. I do have some of the must find parts knocked out on my never ending list. I picked up a Holley 850 carb that is at a shop getting glass beaded an rebuilt, a Torker 2 intake, a pair of M/T valve covers, a complete electronic distributor, and a set of Glenwood water logs and risers. I am going with a 468 ci big block chevy that belongs to my boss, steel crank, steel rods with 13-1 forged pistons. He is selling me the motor less heads, intake, carb, ignition, cam and oil pan. I think this will make a super engine for the boat but it may be a little high on compression . My buddy runs 13-1 pistons in his big block jet boat on pump gas and it does fine. Well that's all for now on the project boat update. If any one has suggestions or advice to offer please have at it. I need all the info I can get on this first time jet boat rebuild. Thanks Fred!
Last edited by 86ENTICER; 11-19-2006 at 07:59 AM.
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-19-2006, 04:37 PM #25
I really like the idea of the outboard. That 20' would just love 12 or 14" of setback (something like a Paralift) and a big V-6. Looks easy and faster than it'll ever be with anything less than 800 H.P. in front of a jet.
Bruster's Mercury solid motor mounts, details here:
http://www.powercatboat.com/Bruster/Bruster.htmlI'm been living in fast forward, now I need to rewind real slow....
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11-23-2006, 03:53 AM #26
Jet drive va 250 Merc
Originally Posted by BrusterLast edited by 86ENTICER; 11-23-2006 at 03:59 AM.
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-23-2006, 04:07 AM #27
This is the 71 Carlson that she likes better than our Chackmate??
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-23-2006, 04:10 AM #28
396 Big block under the hatch of the old James Bond Jet
86 Checkmate Enticer 6' jack plate hyd-steering 2.0 merc cowl vents low water scoops laser II floor stringers vinyl gauges and wiring all new (BOAT IS SOLD) 78 CVX20 Jet Project in the works BBC conversion. SML SUPERJETS
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11-25-2006, 05:56 PM #29Originally Posted by 86ENTICER
That kind of compression in a BBC needs 100+ octane gas at a minimum. That was about as much CR as we could run back in the 60's and early 70's when Sunoco 260 was about 102 or 103 octane and most other premiums were 100 or 101.
Also keep in mind that actual compression is dependant on more than just the piston. There are so many heads available for the BBC, some with very tight (low cc) combustion chambers and others with much larger chambers. Your buddy's 13 to 1's may actually be much less.
If you go with some aftermarket CNC ported aluminum heads, that would be the biggest bang for the buck, but I'd keep it to 11:1 tops, if you want it to run right and survive.
Looks like a nice project,
Darlene
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11-25-2006, 08:37 PM #30Member
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Originally Posted by 86ENTICER
Since then I have pt a 468 Chevy in it and being the performance of the engine is much better the boat now runs about 65 mph at 5400.