2005 Larson LXi 228 prop issues...Please Help

[tdoll22]

I've search the forum and haven't found my answer yet, so now I'm asking for help.

I just bought a 2005 Larson LXi 228 with a 5.0 MPI, Alpha 1, hydrofoil fin. I hit a rock with my stock prop, which was a 3 blade 19 pitch alum, which was good but still over reving at about 5400 rpms. It had ok pop out of the hole and good top speed. I will now list the props I have tried and the results.

1st was a Turbo 23 pitch 4 blade SS - This prop couldn't get the boat to plane, would hit about 3800 rpms and it would shoot to 5400 rpms. Like it was cavitating.

2nd was a Turbo 19 pitch 4 blade SS - This prop was awesome out of the hole, with 2 people and 35 gals it would plane pretty much instantly but I was still over reving at about 5200 rpms. My top speed was under 37 mph in about a half mile stretch.

I have read on here people hitting 53 mph with a 18 pitch 4 blade SS and I'm just confused because I can hardly get close to 38 with a 19 pitch 4 blade SS?

This weekend I'm going to try a high five 5 blade SS 21 pitch and see if that will keep me from over reving.

This is very frustrating because I've only had the boat a month. I just want a good all around prop that is great for tubing. I don't need to hit 55 mph but mid 30's seems a little crazy with a 5.0 MPI. Low to mid 40's would be fine with me.

Any help would be greatly appreciated. Thanks

 

[marinebucaro]

Re: 2005 Larson LXi 228 prop issues...Please Help

See the link in the Larson forum "Question for all our 208 LXi owners"
From what I under stand 4 and 5 blade pros are for better hole shot and better control. I have a 228 LXI and I bought a S.S. stiletto 3 blade (dansdiscountpropellers.com) 21 pitch which lowered my rpms to 3900. I then exchanged it for a 19 pitch which brought my rpms up to around 4700. I haven't gps'ed my speed but my speed was at 60 and it felt like my boat had the best response in plaining and top speed.

 

[tdoll22]

Re: 2005 Larson LXi 228 prop issues...Please Help

Here is the prop I'm going to try tomorrow. I hope it works. It's a High Five 21 pitch 5 blade. I'll post the results.

 

[mrbignellie]

Re: 2005 Larson LXi 228 prop issues...Please Help

I just have the standard 14.3x21 aluminum prop that came with the boat when I bought it new. WOT is 54mph at 4700 rpm. Thats on my 2008 with the 5.0 gxi motor. Good Luck.

 

[tdoll22]

Re: 2005 Larson LXi 228 prop issues...Please Help

Well the High Five prop didn't work any better than the other ones. The hole shot was awesome and very smooth through the rpms, but I was still over reving at about 5500 rpms and only topped out at 35 mph. Think I'm going to have to stick with a 3 blade SS. I will hopefully try one of them this week.