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i have a 2000 yamaha vmax 3.1 and want to get some blistering speeds out of this engine. i have heard that hydrotech offers 3 phase kits for performance possibilities. anybody used these and what kind of results have you gotten? i am running in the low 70's[gps] and i know i can get in the 80's with a little help. my boat is a 2000 xpress x21 dc and my engine is already equipped with a 13 pt. low water pick up (nosecone) from bob's marine out of florida. (25pitch hypertech prop)
Call Hydro Tec talk to Nathan or Jon, you shouldn't be disapointed. http://www.bassboatcentral.com/smileys/bows.gif
Nathan told me between 65-70 hp gains on that motor! 89-91 Octane Fuel.
Blue print the Hull! Look for any hooks in the bottom before transom!!!! This is a major deal with this boat! could get you 1 to 2 mph....
10" to 12" setback on that boat.
I had a 2002 with 10" Manual JP and was looking to get 2" spacer to set it back more. Ran a 25T1 Yamaha Prop and gained 3 mph over 25M Yamaha prop....
Good luck http://xs-s.com/zf/images/smile/emthup.gif Call Nathan
Nathan Worthy
Hydro Tec Marine
865 W. Enterprise Lane
Nixa, MO. 65714
(417)725 5746
http://www.yamaha-rebuild.com
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Basstamer »</TD></TR><TR><TD CLASS="quote">Nathan told me between 65-70 hp gains on that motor! 89-91 Octane Fuel.
Blue print the Hull! Look for any hooks in the bottom before transom!!!! This is a major deal with this boat! could get you 1 to 2 mph....
10" to 12" setback on that boat.
I had a 2002 with 10" Manual JP and was looking to get 2" spacer to set it back more. Ran a 25T1 Yamaha Prop and gained 3 mph over 25M Yamaha prop....
Good luck http://xs-s.com/zf/images/smile/emthup.gif Call Nathan
Nathan Worthy
Hydro Tec Marine
865 W. Enterprise Lane
Nixa, MO. 65714
(417)725 5746
http://www.yamaha-rebuild.com
</TD></TR></TABLE>blueprinting the hull may get you closer to 5 mph
it was worth 6-7 for me on a x19.
What is done when they blueprint the hull?
The octane is not the hp gain... HydroTec is the gain, and higher octane is needed if you modify your motor with a phase kit. http://www.yamaha-rebuild.com/phasekits.htm
http://www.yamaha-rebuild.com/ http://xs-s.com/zf/images/smile/emthup.gif
You tell me if they work>>>> http://www.yamaha-rebuild.com/....html
Mike ,
Thanks for clarification!!!!
HOW IS THE HULL BLUEPRINTED?
we are talking aluminum here. sander metal filler
lots of dust and laying on your back for several hours.
check with straight edge as much as possible and
repaint.http://im1.shutterfly.com/procserv/4...108AbMmrFo1cOV
http://im1.shutterfly.com/procserv/4...108AbMmrFo1cOV
http://im1.shutterfly.com/procserv/4...108AbMmrFo1cOV
http://im1.shutterfly.com/procserv/4...108AbMmrFo1cOV
http://im1.shutterfly.com/procserv/4...108AbMmrFo1cOV
which phase kit did you go with? tell me speeds? that what i am looking for!!!!!!!!
I dont have a phase kit on mine... But I know alot of guys that do. http://www.bassboatcentral.com/smileys/wink.gif I suggest that you call them and talk to Nathan or John. http://xs-s.com/zf/images/smile/emthup.gif
<U>Mark</U> who? http://www.bassboatcentral.com/smileys/Laugh.gif
hey buddy! i am having trouble getting my boat speeds back up!!!!!!! i have had some engine work done but after talking to the mech. he said after changing props and adjusting the engine height it still acts like the boat is SUCKED to the water!!!! he said the bottom has a HOOK in it that is causing the boat from being allowed to FLY!!!!!! i have contacted xpress and waiting for return call. what do u recommend!!!! could u weld a solid pad to the bottom about 1/2 to 3/4 of an inch thick about 4 ft. long to eliminate the hook??????? any help is greatly appreciated!!!!!! http://www.bassboatcentral.com/smileys/bows.gif