Thread: RXP S1 RPM's
10-01-2007, 04:46 PM #1
RXP S1 RPM's
I currently have the following installed on my 2006 RXP.
Rivia Rear Intake
SS Wear Ring
Was hitting 8120 @ 70+ in 80 degree weather.
In the previous weeks the current temps have been high 90's and was running 7920 @ 69+.
Now this past weekend I installed a 14-19r on the ski and I can say the hookup and acceleration is better, however my rpms are now down 100rpm (which they should be considering it's a larger prop)
Temps were low 90's.
RPM's/Speed now is 7840 @ 69+
What I'm wonder is.....are most of you all loosing 200-300rpms due to heat?
Last edited by blowbyu; 10-01-2007 at 07:02 PM.
10-01-2007, 05:30 PM #2
I was seeing 8,060-8,100 this past weekend at Travis.
10-01-2007, 06:06 PM #3
Shot answer, yes. My mods are in my sig.
I was running 7900 rpm in 110 degree heat and the water was in the high 80's. I would be running around 68 mph.
Last weekend the water was 77 degrees, air was 75 degrees. I got 8050 rpm at 70.9 with an almost full tank of gas (-2 bars).
Last January when the water was 50 degrees and the air was 45 degrees I was getting 8150 rpm. I forget my top speed last winter.
10-01-2007, 06:23 PM #4
10-01-2007, 07:00 PM #5
Going to check the slip on the supercharger as I cant see me being 250 rpms down due to heat. With my mods i should be pushing a untouched 14-19r at least 7950 rpms in 90 plus degrees.
Any of you other guys running a stage 1 having to depitch the 14-19r?
10-01-2007, 08:34 PM #6
10-12-2007, 10:51 AM #7
So Water4fire came over to my house last night and we did a slip test on the supercharger and it reads 50-55 LBS of slip. So I guess this is the reason I am down about 300rpms on top. Orderd new spring washers from greenhulk....I wish I could get next day air
Last edited by blowbyu; 10-12-2007 at 11:01 AM.
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