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04-07-2011, 11:06 PM #1
- Join Date
- Feb 2011
- Posts
- 69
Am I getting the right speed please help
Hey guys I have a 2007 rxp that I just put mods on. And im only getting 70.8 at 8180 to 8200 rpm I know I have to pitch my 15/20. But is this the right speed before I pitch it?? I hope u guys can help me. Thanks in advance
Here are my mods
Power filter,x charger,power cooler, 42ibs,rear exhaust, water box, 15/20r,pump wedge,extension rod,o.p.a.s, intake grate,rrfpr, greedy bov, and reduction nozzle
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04-08-2011, 12:34 AM #2
I've gotten over 76 with the mods in my sig....im not personally familiar with your air intake or you power cooler though. And which intake grate are you using? what size reduction nozzle?
My speeds are with 8100-8150rpms, cool temps, low fuel.
I wouldnt pitch the prop untill you figure out why you're only getting 70.8
My prop is totally off the shelf 15/20.
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04-08-2011, 01:41 AM #3
Speed is almost 8 mph off... What gps are you using?
If Your turning a 15/20 at 8200 rpm you should be at least 76...
Stock nozzle?
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04-08-2011, 02:33 AM #4
- Join Date
- Feb 2011
- Posts
- 69
Im using the riva intake grate and a 82mm. Also I notice that my exhaust is not loud why is that??
---------- Post added at 03:33 AM ---------- Previous post was at 03:15 AM ----------
Im using the riva intake grate and a 82mm. Also I notice that my exhaust is not loud why is that??
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04-08-2011, 02:58 AM #5
- Join Date
- Jan 2006
- Location
- perth australia
- Posts
- 124
are u using a gps to measure ur speed or the gauge on ur instrument cluster, the gps is needed for accuracy the cluster doesnt go much above 70
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04-08-2011, 03:29 AM #6
- Join Date
- Feb 2011
- Posts
- 69
Yes I am using a gsp
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