I own a 99 25 outlaw SST with a 502 mag and the boat has a notched bottom. I upgraded to stainless marine exhaust with risers off of a hp500, remapped the ECU, Hardin flame arrestor and k&n filter. All work done over the winter and now its time to get my boat dialed in with the best prop. I am currently using a borrowed turbo prop 4 blade 24pitch, WOT 4900prm. The prop gave me a better ride and better mid range but I lost 3 MPH from the Mirage 3 blade 23 pitch that came on the boat. I would like to get the best speed and mid range out of the boat that I can......anybody have any suggestions???

have you run the stock prop with the new setup? i would start there and then call throttle-up and talk to matt or julie, they will put you where you need to be...

Nope, havent put it in the water with the new setup yet...to cold still. Right now I just get to look at it in the driveway and daydream. My plan was to try the stock prop but the ride and mid range was terrible.

always wanted,

I will try to assist you. Tell me the specifics of re-mapping your ECU.

Were is your Rev Limiter set now?

Have you run the Mirage 23P as well after the modifications you made to confirm it's numbers, WOT RPM and MPH (gps)?

With a little date i am sure that we can get you dialed in!

Julie

Julie,

ECU specifics: had it remapped by hardin marine
had the rev limiterbumped from 5200 to 5400rpm

I havent run the 3 blade because of the weather up here...its normally nice enough by now but unfortunately it has been to cold to start testing props yet, maybe next week will be nice enough. The 3 blade gave me great speed but the ride left a lot to be desired. 90% of the time I am out with the family 4 of us on the boat. Will the new setup change the ride provided by the 3 blade?

Julie,

air/fuel mixture changed by remap also due to new exhaust setup. was running 67mph at 4900rpm before new set up with the 3blade mirage.

always wanted,

I woul run your 23P agian when it warms up and get new baseline numbers. It is possible to see changes in her behavior, after any modification...proceed with caution. 4B propellers will greatly improve the handling characaturistics of the boat, but it is also possible to loose about a 1.5 knots on top. But this is not always the case. It really depends on how the boat was opertating with the 3B , propeller efficiency is a consideration. When you can get a new baseline number with your 23P, post your results here and we can work on getting you dialed in!

Julie

Julie,

Will do! Hopefully I can start prop testing within a couple of weeks but VA weather is so unpredictable. Thanks again and you will be hearing from me.

VR/Brian

67MPH with 23P at 4900, don't touch anything!!

Is that off the speedo or a gps????

That calculates to 6% slip which is highly unlikely for 25 Outlaw. Slip is usually in the 10-15% range for non step V.