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Discussion Starter · #1 ·
just wondering what you guys are getting for a top speed on a 800 pro-x? mine has stock motor, v force reeds, slp intake mod kit, 160 studs down center. have a good clutch set up. geared 24/40. pulls awesome to about 75 mph then dies, barely gets to 85 on a long pull?
 

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whats your primary spring? is the black/green still in the primary ? if it is ditch it for a 140-310 and 10-66. your gearing should have no problem running 105 mph.
 

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just wondering what you guys are getting for a top speed on a 800 pro-x? mine has stock motor, v force reeds, slp intake mod kit, 160 studs down center. have a good clutch set up. geared 24/40. pulls awesome to about 75 mph then dies, barely gets to 85 on a long pull?[/b]

If you are talking about on hard pack....then definately some issues with setup (carburetion or clutch) or chassis as it should pull hard well past 85MPH. Many die off around the C-note area but if you are not pulling to that then you need to verify engine condition, carburetion setup, clutch setup. If engine good and mixture good, then need to look closely at clutch's for wear, clutch setup and also at driveline to make sure nothing holding it back from rolling good MPH's.
a little more info with regards to carb and clutching setup may help to diagnose it being a bit lazy on top end.
 

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Discussion Starter · #4 ·
prox7, im running 430 mains clip in #3 position, 2 turns fuel screw. primary clutch spring alm/red 150/310 rate 68 gram heavy hitter weights, secondary running blk 155/222 rate spring with 3 delrin washers, #420720 team secondary on steep angle.
 
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