07-25-2008, 08:46 PM #1
RXP-X "Race Tech Monster"...The Results are in!!! 0 - 78.86 mph in 7.8 seconds
Today we finally got a day with no rain so Mark and his team from Race Tech took the "Monster" out for testing.
Todays weather was the following...
Temp 28 C or 82.4 F
Dew point 14
Feels like 35 C or 95 F
Wind SW 11 kph
Relative Humidity 51%
Ceiling was umlimited.
Water Temp was 85 F
Under 500 ft elevation
The list below is what I have done to my RXP-X
Rotax Racing ECU 8800 rev limit
Race Tech Super Charger wheel 137mm with the 3mm spacer
R & D Grate
Race Tech dual exhaust
Rotax Racing Cam
Race Tech Fuel Pressure Regulator
2 degree wedge
4" Race Tech custom Intake
Riva Reducton nozzle with the 82mm ring
Race Tech light weight Valve Train
Dynotune Boost gauge
I will attach a video and graph for everyone can see solid results. All test were done with his Staker Radar gun and laptop.
peak speed- 79.45 at 800 feet
0-30 mph- 1.35 sec
0-50 mph- 2.50 sec
0-60 mph- 3.26 sec
0-70 mph- 4.43 sec
0-78.86 mph- 7.86 sec
Top speed was at 80.3 mph at 925 feet
Boost was 13.6lbs with the Race Tech 137 wheel and 3mm spacer.
Last edited by powertek; 07-25-2008 at 08:56 PM.
07-25-2008, 08:50 PM #2
Here is a picture of top speed acheived at only 925 feet.
One other BIG thing I forgot to mention was the boat hit 1.21 G's. This thing has one hell of a hole shot!!
I know Mark from Race Tech will follow up with some more data and other indepth information I can not answer.
07-25-2008, 08:52 PM #3
Congrats on the great speeds...
Just one point of clarificaton please...do you run the 8600 rpm RR ECU or the 8800 rpm ECU...which leads me to wonder at what RPM was your peak boost of 13.6 seen?
07-25-2008, 08:53 PM #4
They say jet pumps are inefficent... but WTF... WOW
That's beyond some supercar stats....
07-25-2008, 08:54 PM #5
I did forget to post that...I use the Rotax ECU 8800. The peak boost numbers were at 8600rpm.
07-25-2008, 09:05 PM #6
Man I tell you some hardcore motor shots would be nice if you are willing to disclose...
Video's would top it.....
07-25-2008, 09:07 PM #7
That is quite impressive!! Its awesome that your getting 13.6 lbs boost with with a 137mm wheel at 8600 RPM's!
You should make an acceleration run video!
Was the speed time from a dead stop?
07-25-2008, 09:09 PM #8
Some more information I just got from Mark (Race Tech)
the +2mm impeller did 0-78.5 mph in 11.02 sec
the +3mm impeller did 0-78.5 mph in 7.64 sec
you see the 0-50 times with the 3mm? ...2.5 sec.....WOW!!
We also tested the Race Tech wheel against the Rotax Racing wheel with the 2mm spacer. Lets just say....not a chance for the Rotax wheel.
07-25-2008, 09:10 PM #9
All speed were done at a dead stop and Mark was on my boat testing it. I am up loading a video right now...
07-25-2008, 09:20 PM #10
Thats quite impressive!! Great job!
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