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Old 03-26-2005, 03:23 PM
kpickett's Avatar
kpickett kpickett is offline
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Boat: 1994 Prostar 190 - LT1
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Need ACME prop help

Well, I got my new ACME 541 via UPS today. I slapped it on the boat and took it out for a test spin. I have to say I'm a little disappointed with the results. I had been told that I would probably increase my top end a little bit and maybe lower my rpm at skiing speed. I have a '94 Prostar with the LT-1. I did some measurements with the GPS:

Stock OJ prop -
3000 rpm - 32.0 mph
WOT - 4850 rmp - 48 mph

New ACME 541 13X12
3000 rpm - 31.4 mph
WOT - 4600 rpm - 46.4 mph

I didn't have a way to measure the acceleration, but I've never felt acceleration like the ACME. It was a rocket. However, with the LT-1, I don't need any more holeshot. I guess I'm thinking of exchanging it for the 449 - 13X12.65. I think someone on here is running it - Farmer Ted, maybe? Anyone else running the slightly bigger prop?

Kyle

Last edited by kpickett; 03-26-2005 at 03:27 PM.
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  #2  
Old 03-26-2005, 05:40 PM
Leroy
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I have the 541 also, but will be mid/late April before I can test. I know just looking at the two the ACME blades looks like they are on steroids.
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  #3  
Old 03-26-2005, 09:03 PM
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kpickett kpickett is offline
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Yeah, the surface area of the ACME is amazing for a 3 blade prop. Anyone using the 449?
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  #4  
Old 03-26-2005, 09:08 PM
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G-man G-man is offline
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Call the folks at acme and give them your results. They will be able to give you a suggestion. What should your max rpms be? If it is suppose to be in the 4800 range from what I see you need to drop down some more in pitch. I doubt your top end will increase but a drop will increase your low end more.
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  #5  
Old 03-26-2005, 09:31 PM
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Mag_Red Mag_Red is offline
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Sounds like the OJ was working fine Why switch at all???
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  #6  
Old 03-26-2005, 09:47 PM
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6ballsisall 6ballsisall is offline
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Not trying to highjack your thread here but I need help!! I put a torch on the OJ Legend and STILL can't get the prop to budge, it is on there tight!! Any recommendations? WOuld really like to put that good looking ACME on there!
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  #7  
Old 03-26-2005, 10:18 PM
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kpickett kpickett is offline
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Quote:
Originally Posted by Mag_Red
Sounds like the OJ was working fine Why switch at all???
Well, I didn't have a backup prop, so I thought I'd take part in the group buy and get a good deal. The boat is new to me, and the OJ is a 9 year old prop. I'd heard so much good talk about the ACME that I thought I should try it.

I'll call ACME on Monday and see what they recommend. I'm not so worried about top end or hole shot, but I'd like to get a bit better gas mileage, so if I can drop a few rpm at skiing speed it would be great.
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  #8  
Old 03-27-2005, 01:46 AM
Leroy
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kpicket; What horsepower are you running?
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  #9  
Old 03-27-2005, 01:54 AM
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kpickett kpickett is offline
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Quote:
Originally Posted by Leroy
kpicket; What horsepower are you running?
You know, I'm not sure. It's a new boat to me. It's a '94 with the LT-1. I've heard 310 and I've heard 330. I'll post a question on the board and see if anyone knows.
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  #10  
Old 03-27-2005, 02:20 AM
Leroy
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My 2001 LTR1 has 330 HP.
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