Thread: 7900 Rpms Wtf!
04-22-2007, 07:21 PM #1
7900 Rpms Wtf!
ok i am only seeing 7900 RPMS and 68.3 with the mods below....do you think my prop needs to be tweeked? i am kind of disappointed at that number. i should be seeing 70mph or so right?
04-22-2007, 08:20 PM #2
just throwing out an idea:
Isn't the 14/19r too tall for a stock RXP? That would explain the lower RPMS.
Here's my vote, but wait for the prop folks to chime in...
Plan A: Buy my 14/17r
Plan B: Maybe try taking a couple of MMs out of it???
04-22-2007, 08:32 PM #3
i suggest you check your supercharger health
if everything is alright i then suggest you tweak your prop
a 14/19 is perfect for a stock to stage 2 minus intercooler rxp
a simple custom air intake could be the fix
04-22-2007, 08:45 PM #4
my sc shuld be fine, jerry changed the washers about 5 rides ago...i was seeing 7850 the day i put my sc in from jerry, i think he told me to tweek the prop
04-22-2007, 09:17 PM #5
Mike, you need to come see me and we'll get it straight. I think we could take 2mm off that prop and have you running fine.
04-22-2007, 09:28 PM #6
- Join Date
- Oct 2005
Prop is definately the problem. A 14/19 is too steep for what you're running. Either repitch it or replace the stock sc intake with a front 3", front 4", or rear 4".
04-22-2007, 09:31 PM #7
04-22-2007, 09:35 PM #8
Thats cool, i'll get with you later in the week and we'll set something up. PM me with your number.
04-22-2007, 10:02 PM #9
Air intake (preferably rear air) and -2 mm on the trailing edge will have you flying
04-23-2007, 08:51 AM #10
dont do anything till you check your oil!!!
i was turning the same with my mods and my oil was way overfilled....that will deff cause a loss of RPMs....
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