Thread: Speeds are low...or are they
08-03-2009, 10:09 PM #1
Speeds are low...or are they
mods are in my sig but here's a list:
gen 2 wheel
3" intake for now
my best speed was last saturday 71.7 at 8050rpms
air 89 water 85
im thinking i should be higher than this...kinda boring for the amount of money ive spent to get from 67 stock to now. whats wrong? or is it?
08-03-2009, 10:56 PM #2
08-03-2009, 11:22 PM #3
change out the grate to a Riva
check your oil level
silicone your intercooler blockoff like hell
check pipes for boost leaks
check supercharger slip moment
make sure there is no damage in your pump area
you may want to check your engine alignment as well
You should be pulling a 15/20 4 blade those RPMs with speeds 75+
08-04-2009, 05:06 PM #4
i am looking for top end just to see what i can get out of the boat with this set up, ill switch back to the stock and see what happens. what kinda speeds should i be lookin at with that setup skoepp?
the prop i had was a 3 blade, definately not enough power to pull that. shoulda tried a 4 blade. with the 14/19 and this set up with no leaks and everything good, what speed do u think?
08-04-2009, 05:34 PM #5
08-04-2009, 05:38 PM #6
i have had mixed opinions...im thinking 74-75 should be nothin with this set up. im thinking i have a boost leak somewhere though.
08-04-2009, 06:40 PM #7
Your parts choices are OK except for the 14/19 ... put a 15/20 Solas 4 blade impeller in there, make sure there are no boost leaks and you should definitely hit 75+ with that setup.
08-04-2009, 07:12 PM #8
His RPM's seem too low for that setup with that prop. I'm leaning tward boost leak, or mainly SC slip. How many hrs on those clutches, and what kind are they? What's your evevation ? A riva grate, and 4" intake will help lots.Also How many hours on the prop, and wear ring? Use BRP oil, and make sure it's not past the middle of the two bends on the stick.
08-04-2009, 07:26 PM #9
also, can i bend the my 14/19 to 15/20? im still learning in that area also
08-04-2009, 07:48 PM #10
U can de pitch the prop to get some R's ,but u should already be on the limiter (yes 8200) with that prop. I'd set for 8100-8150. Usually after break in on the clutches thery need to be checked for proper slip, and sometimes shimmed,then they will be good for a long time. U should see 74ish and more with a 15/20 solas.
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