1996 1 Step Lighting What Speeds
06-08-2004 | 01:00 AM
#12
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Joined: Jul 2001
Posts: 5,242
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From: Tinley Park, IL
Re: 1996 1 Step Lighting What Speeds
TOMMY HIWAVE,
I would think 78 if everything is set up correct. Are you spinning the props in? The Hydro's will give the best top end numbers but the midrange suffers. You need to get your engines into the correct RPM range which would be in the 5000- 5150 rpm range wot. I would think a 26 pitch hydro would work better than the 27. Try to hook up with a prop shop that will let you demo the props without buying them to see what works. Also try a set of Bravo 4 blades. They work really well. Where do you have the boat trimmed at 3000 rpm?
Dan
I would think 78 if everything is set up correct. Are you spinning the props in? The Hydro's will give the best top end numbers but the midrange suffers. You need to get your engines into the correct RPM range which would be in the 5000- 5150 rpm range wot. I would think a 26 pitch hydro would work better than the 27. Try to hook up with a prop shop that will let you demo the props without buying them to see what works. Also try a set of Bravo 4 blades. They work really well. Where do you have the boat trimmed at 3000 rpm?
Dan
06-08-2004 | 01:04 AM
#13
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Joined: Jul 2001
Posts: 5,242
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From: Tinley Park, IL
Re: 1996 1 Step Lighting What Speeds
Originally Posted by MegaByte*3
99 35 lightning single step w/ 502 magnums (efi) spinning 23p Mirage Plus' through 1.36 Bravo 1s. I see 5100 rpm and 78-79. I have twice seen 80.3 with very light fuel and passengers.
4000 RPM equals 60 mph and 30 gph total, almost irrespective of the fuel and passenger load.
Tab and drive settings vary based upon the conditions and "heartiness" of the passengers.
Tom
4000 RPM equals 60 mph and 30 gph total, almost irrespective of the fuel and passenger load.
Tab and drive settings vary based upon the conditions and "heartiness" of the passengers.
Tom
Dan
07-07-2004 | 03:31 PM
#14
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Re: 1996 1 Step Lighting What Speeds
I have a 1998 model 1 step, 35' lightning with 502 mag mpis. The boat currently runs 75-77 mph with the factory 26 hydros at 5100 RPMs. I have stepped up to 28 bravo I's and I'm running 78 mph at 5000 rpms, but I haven't run it with low fuel and few passengers.
Sounds like you may have something going on. before you spend alot of time and money with props I would have someone hook it up to the computer and make sure the boat is running properly. Have the codes checked for any errors, etc. When I first purchased my boat used with only 70 hrs on it, three of the plugs were fouled out because the plug wires were bad. The boat was only running 63 mph. After plugs were replaced and the boat was properly tuned it was hello 77mph.
Best of luck.
Sounds like you may have something going on. before you spend alot of time and money with props I would have someone hook it up to the computer and make sure the boat is running properly. Have the codes checked for any errors, etc. When I first purchased my boat used with only 70 hrs on it, three of the plugs were fouled out because the plug wires were bad. The boat was only running 63 mph. After plugs were replaced and the boat was properly tuned it was hello 77mph.
Best of luck.
