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1000 posts!!!!!!!!! OSO World Record!!
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Originally Posted by 575cat
(Post 3690800)
Had a chance to run mine today water pressure is good good water flow out from inter coolers but has adverse handling effects my wife was with as always never afraid of speed but I cranked it up 85 90 heading into strong s wind dead on and it hooked to the right I never touched the wheel we both freaked a little bit it wasnt good I thought it was a gust of wind that pushed us over, cruzed down river a ways and then started coming back with the wind decided to try it again 85 90 or so and it hooked to the left again not good I dont know if its blowout [ no rpm increase ] or the bullett skiing trying to lift the stearn up , I felt better with the sportmaster lower . Erick im curious to see how yours handles Im at a loss right now .
Just food for thought, a friend of mine just installed some scx-4's on his 460 Black Thunder and the boat exhibited some of the behavior that you have described in yours. He tried a 1" spacer and he says the boat handles great now. |
Sounds like it needs bigger blowers Dean.:lolhit:
Give me a shout if I can help. Have you talked to Rick to get his take on it? Eddie |
Originally Posted by Coolerman
(Post 3690974)
Hey Dean, sorry to hear that the handling didn't work out for you.
Just food for thought, a friend of mine just installed some scx-4's on his 460 Black Thunder and the boat exhibited some of the behavior that you have described in yours. He tried a 1" spacer and he says the boat handles great now. |
Originally Posted by Young Performance
(Post 3691022)
Sounds like it needs bigger blowers Dean.:lolhit:
Give me a shout if I can help. Have you talked to Rick to get his take on it? Eddie |
Originally Posted by Coolerman
(Post 3690974)
Hey Dean, sorry to hear that the handling didn't work out for you.
Just food for thought, a friend of mine just installed some scx-4's on his 460 Black Thunder and the boat exhibited some of the behavior that you have described in yours. He tried a 1" spacer and he says the boat handles great now. |
Originally Posted by TCBoss302
(Post 3691115)
Can you please share some before and after performance numbers your friend saw? Is there a thread on this change? PM me if that would be better. Sorry for the hijack.
I sent Ryan a text to update the thread when he gets a chance. |
Originally Posted by TRL505
(Post 3690910)
What did you set toe in at?
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Dean, where is your x-dimension at now?
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Originally Posted by 575cat
(Post 3691501)
Sorry Erick , toe is about 0 which I know is wrong , but it should not act this crazy . I just wonder if there is such a thing as the drives being to close together ? is spray from each drive blowing out the other ? I mean at 85 90 my slip figures out to 30+ % @approx 5500 ?? even at 42mph I was only 2800 which is maybe not to bad for cleaver props ?? I never thought the outcome would be this bad .
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5 Attachment(s)
Originally Posted by Coolerman
(Post 3691530)
Dean, where is your x-dimension at now?
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Originally Posted by KWright
(Post 3691541)
For what it's worth my slip figured out to 9% 5300@ 93mph I also had Wilson Custom Marine blueprint my lowers, Craig said he cleaned them up quite abit. Reggie claims my boat runs real level and solid.
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That's to high.
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Originally Posted by 575cat
(Post 3691553)
X before with -2 sportmasters was 22.3/4 now should be 20 3/4 right , with 18 inch propshaft centers . 2 drive pics are from the pad 2 are from directly forward of the drive , that pic is running about 70 or so before the action starts !!!!!! Eric sorry for hyjacking your thread but I think everyone wants info on these settups .
Man I hope I dont have these same issues...I think we have the X jacked to the moon on our setup...we shall soon see. 30% slip is crazy high! Something is obviously wrong. Other than the -4's, props and the big strainer, keel pickup and intercooler pickups what else did you do on this latest round of mods that could of contributed to this?? I honestly don't think the drives are too close together...I mean look at how close they are on Poker run boats and Fountain's race boats. I sure hope you get it worked out...I know you will man. Thoughts? |
Something else to bounce off of ya'll here......
When alot of #6 boats run a high x dimension, the prop is set back much further from the transom in comparision to where a stock scx-4 location would be. Alot of cats I have seen with the scx-4 have extension boxes on them. Setting the prop further back lets more water to it and it also has more leverage on the bow. I would think adding a spacer could achieve "similar" results. Like TRL505 said, maybe RF3 can comment or elaborate on what he thinks of this. |
If you were 22.75 before now your 24.75, that's about 1 inch to high.
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Originally Posted by Reggie Fountain
(Post 3691645)
If you were 22.75 before now your 24.75, that's about 1 inch to high.
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Originally Posted by TRL505
(Post 3691637)
No problem Dean...I want you to get it right. Maybe R3 can chime in with some advise on what may be a quick/easy fix for you.
Man I hope I dont have these same issues...I think we have the X jacked to the moon on our setup...we shall soon see. 30% slip is crazy high! Something is obviously wrong. Other than the -4's, props and the big strainer, keel pickup and intercooler pickups what else did you do on this latest round of mods that could of contributed to this?? I honestly don't think the drives are too close together...I mean look at how close they are on Poker run boats and Fountain's race boats. I sure hope you get it worked out...I know you will man. Thoughts? |
It looks like your about 3.5 inches above now, is that right?
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How many rpms are you turning at 90, what pitch props?
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Originally Posted by Reggie Fountain
(Post 3691652)
How many rpms are you turning at 90, what pitch props?
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Actually your slip is 36%. Way to high. The one pass I made with ericks boat I was at 5500 with a 1.5 & a 38 at 110 MPH.
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It's too high. Is your water pickup flush? Too much water pickup will make stearn lift. Sorry you are having problems Dean. I could work a trade on your old lowers :D
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can't you just run 19 inch props ?
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Originally Posted by Reggie Fountain
(Post 3691651)
It looks like your about 3.5 inches above now, is that right?
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Originally Posted by 575cat
(Post 3691679)
Yes Reggie with the sportmaster settup before about 1 inch above the bottom now I would guess about 3
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Originally Posted by mcprodesign
(Post 3691687)
then it's all the water pickups lifting the transom or else props too close fighting for water? like you said
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Originally Posted by 575cat
(Post 3691710)
Chad if you see the pic in post #977 you will see the pickup it is recessed in to the hull nothing protruding below .
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Personally....I dont think its a pickup related issue. I know of several Fountains with multiple pickups that done have these issues....but if one thing is for sure in life....I have been wrong. lol. I think as R3 said, its a drive Ht issue. Put a 1in spacer in and you should be golden. High slip, goofy handling charecteristics..falling on its face after 5500 all tells me the props are losing grip on the water...ie X is too high.
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Originally Posted by TRL505
(Post 3691808)
Personally....I dont think its a pickup related issue. I know of several Fountains with multiple pickups that done have these issues....but if one thing is for sure in life....I have been wrong. lol. I think as R3 said, its a drive Ht issue. Put a 1in spacer in and you should be golden. High slip, goofy handling charecteristics..falling on its face after 5500 all tells me the props are losing grip on the water...ie X is too high.
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Originally Posted by mcprodesign
(Post 3692498)
I've been wrong so many time that I say " I've been right before" lol! You'r gonna have to spill your X dim' numbers for Dean. And a cleaver shot for me if possible :D
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Eric we got some transom vids not to bad but maybe long and boring only ran up to about 75 , I will try to post tonight
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Originally Posted by 575cat
(Post 3693181)
Eric we got some transom vids not to bad but maybe long and boring only ran up to about 75 , I will try to post tonight
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Originally Posted by 575cat
(Post 3693181)
Eric we got some transom vids not to bad but maybe long and boring only ran up to about 75 , I will try to post tonight
So what do you think the issue is?? Any more thoughts? |
Originally Posted by TRL505
(Post 3693295)
Cool!!
So what do you think the issue is?? Any more thoughts? |
Originally Posted by 575cat
(Post 3693357)
Im going to go ahead and order 1 inch spacers as per R3 my slip is to high bottom line even last night 75 mph @ 4500 ??? what do you think , I dont dare run it at higher speeds I dont want to it to get loose on me !!!!!!!!!!!!
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is there a video somewhere or am I drunk at 6pm again?
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Originally Posted by mcprodesign
(Post 3693446)
Dean, with 1 inch spacer you would have bent your drives. Watch the video at launch. I think your star drive actually touched the launch ramp when you spun the boat around to leave the trailer. Looks like you also may have hopped on the deck when you shoved off and also when you go to the back of the boat the drives go lower. Just trying to look out for ya
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Eric are you getting stuff together ?
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Just finished up everything its all done, heading to the water in the morning.
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