10-16-2013, 07:35 PM #1
Tested Lucky 13 Adjustable Pump Cone.
Spent some time last week testing the new Lucky 13 pump cone setup and was pleasantly surprised. Only reason I was slightly skeptical was due to the size of the ski and power the motor was producing.
Test subject is a modified 2012 RXTX with the following mods for the most part.
-Solas 4 blade
-custom cold air intake
-9200 reflash with 1000cc injectors
-SuperTech spring kit
-DCC custom billet cam
-DCC pressure relief kit
Ski was working really well and with the edition of the cam the pump would just blow out no matter what we tried. Speeds were in the 84 range but the customer was more interested in drag racing as long as the ski maintained over 80 at any given time in the summer.
Starting with the tailcone and three of the 3mm spacers I was completely shocked to find out that not only was there no cavitation but it actually bogged the motor down a on holeshot!!!! This was amazing to me, so we quickly (as quickly as one can possibly remove and reinstall the SD IBR system) and went down to one spacer. Now the ski jumped out of the water never bouncing off the limiter and maintained its 9k rpm target!! Pull was night and day harder!
Our test lake is small and have a shut down bouy that I always lift at in order to not go duck hunting. Speeds were 82/83 every time now in the same distance so we gained over 1mph of speed in about 500 feet in this particular application. We will get the ski back for more work next month and see how fast we can really make it go top end wise.
The fit and finish is excellent and wished a few other manufacturers could produce this nice of quality. We look forward to testing the Lucky 13 Tailcone on the new Yami Riva pump in the very near future and the angled Tailcone setup for the earlier SD pumps. Would be really cool to give some RXPXs a run for their money out of the hole!!
Last edited by Duke; 10-16-2013 at 07:54 PM.
10-16-2013, 07:40 PM #2
So, If I read this correctly, your customer spent $300 on a part and went slower????
10-16-2013, 07:47 PM #3
Interesting. Looking forward to next months results
10-16-2013, 07:51 PM #4
The test lake is limited to about 500 to 550 foot test runs tiny. I didn't take it out to Moss Park to run a full speed run since Geo was only concerned with drag racing right now. He spent 300 dollars and gained 1 mph in less then 500 feet with zero cavitation.
10-16-2013, 07:57 PM #5
10-16-2013, 07:58 PM #6
Great results Duke! Geo emailed me today telling me how happy he was.
10-16-2013, 08:01 PM #7
10-16-2013, 08:02 PM #8
10-16-2013, 08:06 PM #9
10-16-2013, 08:06 PM #10
You may want to look into a Qstarz device feeding a bluetooth signal to an Android running Trackmaster to get some really repeatable data on this sort of thing.
It all comes down to maximizing acceleration.
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