19' eliminator 250 mod vp prop help

[Vzsuper]

What pitch chopoer

[Vzsuper]

You need a chopper style prop not a cleaver. My 19 ft daytona ran 92 mph with a steve Smith offshore cut chopper and a sportmaster. With a cle it would blow out in the mid 80's . Post a picture of your setup.

What pitch did u run

[stoker2001]

I am stating top speed at 7300 rpm with each prop not a loss of rpm anywhere plenty of power i can and have turned 8k + but dont know where the danger zone is the engine naturally wants to turn 7k half throttle i did some checking to make sure i had 1.87 gears i do

i dont understand how the 28 cleaver was such a dog it would wind up on launch but hook in a boat length and pull im going to take my props to the shop tomorrow and hopefully a 28 or 30 re3 or yamaha drag will do me right im on the fence about a 32 but the stv guys are turning smaller props faster

I have a nice 28 chopper in classifieds that's 14-1/4" that should work great if that motor is putting out the power it did when new

[capteliminator]

My worked chopper was a 28 pitch. Dont remember the rpm's but i would guess 7500.

[Vzsuper]

I just got a signature 3 blade 30 p test next weekend ... Ron Hill said if i can spin the cleaver that easy i can run up to a 34 i want to not load the engine bad and get her hot so i hope the 30 is the perfect pitch ��

[stoker2001]

that's a LOTTA pitch for that little 2.4 bridge,plus the fact that the desert air in Yuma robs power big time...!just saying

[Vzsuper]

that's a LOTTA pitch for that little 2.4 bridge,plus the fact that the desert air in Yuma robs power big time...!just saying

If i was hittin revlimit with a 28 why would the 30 be so dramatic a change that is 112 race fuel and i honestly think this little 2.4 is spittin 260 + on the hp and the hull is a light layup i see all theese allicats turnin that and more or the stv w a 200 spinnin a 34. Now whatcha thank about dat ?

[Vzsuper]

Doing some research found polished props have more slip makes sense the 24 chopper was satin and tbe 28 lab finished and a cleaver

[pearlriverrat]

I have a 19 foot Eliminator Daytona with a Mercury 2.4 Bridgeport carbed mod VP motor I'm having trouble getting top speed out of it as to the props I ran a 22 Chopper which got me to 55 miles an hour a 24 Mercury Racing Big Ear Chopper that got close to 70 miles an hour GPS so I switch to a 28 signature cleaver and lost speed I'm barely getting 60 miles an hour out of it maybe 65 at 7300 RPM I do know how to trim and run the Jack Plate I've played around with it from everything three inches below the bottom pad to an inch above and saw nothing faster any help would be appreciated with the numbers we typed in me was 1:86/1 Gear i should be doing 98 miles an hour I'm about to throw a 32 Cleaver on there mercury 2 hole cle low water on there doesnt seem to be slipping bad

This similar rig to yours claims 90+. You might PM him and ask for setup tips...

http://www.screamandfly.com/showthre...-JSRE-245-2-5L

[racer]

That 28 cleaver is running over 30% slip as 30% would be 72.8 at 7300. That tells us that either your set up has an issue or a clever is the wrong prop for that boat which I know works better with a round ear propeller. Have you verified tach and speedo are correct? When everything is right slip should be no more than 12 percent.

[Vzsuper]

That 28 cleaver is running over 30% slip as 30% would be 72.8 at 7300. That tells us that either your set up has an issue or a clever is the wrong prop for that boat which I know works better with a round ear propeller. Have you verified tach and speedo are correct? When everything is right slip should be no more than 12 percent.

Yeah I figured that out Ron Hill was recommending the cleaver and everyone else said chopper or drag but he said at top speed the boat doesnt need bow lift and stern is more beneficial i bought a 30 et i will test tomorrow morning

[Vzsuper]

So with the 30 drag prop I could only pull to 7000 RPM 80 miles an hour I'm really frustrated and I don't know what else is causing me to not see good numbers that's still like 20% slip I have been talking to a few people can I have some aluminum plates on the bottom of my boat that I believe could be causing too much drag or making the boat not work right it turns on a dime the aluminum Runners are 8th inch thick by about three inches and they run for about three feet from the back of the hole at the transom forward any recommendations or advice would be appreciated I'm about to unbolt these things I should be seeing less slip and more speed

[stoker2001]

So with the 30 drag prop I could only pull to 7000 RPM 80 miles an hour I'm really frustrated and I don't know what else is causing me to not see good numbers that's still like 20% slip I have been talking to a few people can I have some aluminum plates on the bottom of my boat that I believe could be causing too much drag or making the boat not work right it turns on a dime the aluminum Runners are 8th inch thick by about three inches and they run for about three feet from the back of the hole at the transom forward any recommendations or advice would be appreciated I'm about to unbolt these things I should be seeing less slip and more speed

Wow,my azz is old as dirt and I have never seen those on a tunnel ModVp,guessing it aids turning?sure as hell don't help for speed!!

[Vzsuper]

Ive thrown a dog out and shoked quite a few people when i shut down and turn ill say that ... They're level with the center pad so i assumed they would pack more air and lift more , there has to be no more than 10" or less in the water at full speed, but a gentleman I was talking a gentleman I was talking to you about my setup said he put turning Skaggs on the bottom of his boat and he lost three to six miles per hour.. so I'm losing 20!!

[Vzsuper]

The downside to removing them is bolts countersunk into the hull every 6 inches for three feet and then I'm going to have to fill all of them and seems like a p.i.t.a!!