selection

Its has a Yamaha 250 vmax. It has a stainless 4 blade solas 14x23. I know the Ranger bass boat is heavy. But I was wondering is there a better prop to get it up on a plain faster?

Im looking for some advice on prop selection. My boat is a ~17' Howard with hallcraft v drive and 16% gears. The engine is not too powerful, only around 350hp and I've got a 1 inch prop shaft. What kind of prop should I be looking for? I see all sorts of props on ebay with all sorts of pitch...

i have a 1977 daytona elimnator with a 468 bbc it has a tunnel ram with 650s on it steel cast heads rectangler port heads 110cc 10:1 compression flat tops motor spins at 5000 rpms i want to pull out the solid cam and go roller i had with all the idling and going threw no wake zones you have to...

A friend of mine is making me a great deal on a blueprint 632" motor. 815/800. How do you select an impeller? I do know I have an 'A' aluminum in there now and it turns 54-5500 on my tach (not sure how accurate it is) @62-65 mph. Hardin 454. As far as I know the jet is stock. Im sure Ill need a...

I thought I would make a new thread since I have a new motor :wink2: Hondo true flat, 18% gears, prop is a 12 x 16, but that is most likely going to change depending on need. The motor is getting built right now, 468 BBC with alum heads, just shy of 11:1 compression, currently a victor jr...

Ok guys, I know this will always big one of the biggest questions on engines but I needs help picking the right cam for my ride. I have a heavy 21' ultra with a mostly stock 454 chevy running large oval port heads and 1.7 rockers. It being push by a berkeley jet. The jet is get rebuilt and will...

Recently acquired a 1973 Taylor SS 18" with a JE that needs rebuild. With the boat rest I don't have the money to go bronze or SS impeller right now. The motor is a 460 with -7cc pistons and D3ve heads. Should be about 9:1 compression according to the calculator. I need a hydraulic tappet cam...

Hello guys, first post I believe. I bought a 1969 Hondo flat bottom last night with a 468 big block chevy. The previous owner did not remove the inner valve springs when breaking in a new cam and flattened it out on the first trip. The boat sat parked for about 4 years and now I have it. I am...

Mods...please delete. Thread deleted.

What spark plug should be used in a 426 hemi with a 8:71 blower making about 5 lb. of boost. Dynoed at 800HP. Gas is 110 octane leaded. Motor came with Accel 111 plugs, but they are no longer available.

I seem to have a lot of play in this shifter before it moves the reverse gate or carb. I was told a floor mount foot throttle would work wonders for me but I have a sleek craft executive and the seat are just too high. Would thos billet shifter work better then one I have now. Not looking to...

so I am building a 454 for my 21 foot hawiian mini day cruiser my motor so far is a 73 block bored to.060, 049 heads haven't done the cc yet (waiting on the kit to get here) but I think they are 115cc, 20cc domed speed pro pistons which should net me around 9.5-10:1 compression(wont know till I...

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Hi Guys fantastic web site, love the tech. forum I have a project at present which is Gen VI Chev BB 509 short block is together: JE 7.5 dished pistons 6.385"rods forged crank Im unsure whether I will run the 088 Gen VI cast iron square ports, or have some #861 raised bowtie alum. heads Im...

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I/OB low hr stock internal 454 mag with rectangle port heads(heads were refreshed 2 yrs ago they added hyd roller rockers), emi thunder headers w/risers,edl air gap intake with Holley hp750 carb,with a water pump bypass. what are some of my nice options to for a cam/lifter/ swap with out...

so im doing a motor for a guy and he already has the parts, so im working with what i got, i know i know the heads are to big, but what cam should i choose to make them work for the application. going in a 21 foot hallet vdrive cruiser, has 15s in the v-drive with one of those velvet...

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Im thinking of upgrading the cam in my boat. So what I have know is a heavy ass boat with through prop or drive exhaust and i have no clue what would be a good all around cam. I want to boost the performance of the boat, its currently a stock 5.7 but im putting a edelbrock performer intake and...