srx speed?

madzx2 said:
i drew a line on the drive clutch and went for a ride. did a few wfo runs and hit 90.6 mph. before i went to ride i changed the secondary wrap to 80 and with it like that my clutches are HOT!! changing the wrap to 80, my rpms went to 8500 and dropped to 8000. before when it was set at 70 the rpms stayed at 8500. the width of my belt is 1.35" so its still within specs. from the line i drew i can see the belt has 0.320" to go until the top of the belt is flush with the top of the drive clutch.
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Whats left there is probably 7-9 mph. Need more tip weight likely.
 
norwegian said:
Here's how fast it should be:
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Thats a cool pic but if its not burried, your not getting all of it. Mine is in mph but I was able to just pass the 120 mark Saturday on a hard packed/ice long stretch of road and it was 39 degrees out. I was getting 108-110 (speedo) on the groomed trail. I would like to snap a pic of the needle past the 120 mark if I can do it safely...
 
unchained said:
Whats left there is probably 7-9 mph. Need more tip weight likely.
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more tip weight? another fellow member suggested i move some of the weight in the tip to the mid and empty the heel. but if i did add more to the tip wouldnt my revs drop below the 8500 i see wide open?
 
With my Dragon 700 the only way I could use the top 3/8" of the primary and break 100 mph was with HC drag and flys. I had the same issue, I used weights with more tip mass and couldnt rev out. I used less and wasnt shifting out. For that sled, drag and flys were the shit. I picked up 12 mph once it was properly clutched---honestly. It sounds to me like your not making 140 hp for whatever reason. You could be hitting 8500 but have a powervalve, low compression, chipped reeds, worn reeds, rich jetting, weak ignition or something going on other than your clutching. My 02 is stock and original with 4k miles and only has a roller secondary with a crazy steep 64/44 helix with a cat red/white spring and in 40 degree weather I was pulling big top end numbers. My primary is all stock too. I did find earlier this yr that my mag cylinder powervalve was waaaaay out of adjustment and not opening all the way...
 
unchained said:
With my Dragon 700 the only way I could use the top 3/8" of the primary and break 100 mph was with HC drag and flys. I had the same issue, I used weights with more tip mass and couldnt rev out. I used less and wasnt shifting out. For that sled, drag and flys were the shit. I picked up 12 mph once it was properly clutched---honestly. It sounds to me like your not making 140 hp for whatever reason. You could be hitting 8500 but have a powervalve, low compression, chipped reeds, worn reeds, rich jetting, weak ignition or something going on other than your clutching. My 02 is stock and original with 4k miles and only has a roller secondary with a crazy steep 64/44 helix with a cat red/white spring and in 40 degree weather I was pulling big top end numbers. My primary is all stock too. I did find earlier this yr that my mag cylinder powervalve was waaaaay out of adjustment and not opening all the way...
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i checked and adjusted my power valves yesterday so i know thats not the problem. ill try messing with the weights and see what happens.
 
I know this is a hassle but I would try taking the pipes and headers off and checking to make sure that when you move your servo up to the mark that the powervalves are adjusted properly. It sounds like when you were adjusting that there was too much tension on the valves so the servo was moving. I think it is worth checking to see where you are on those it sucks to pull one through. They should be flush to just less than flush!


I think those hh are holding you back.....whats it like on an indefinite run.

madzx2 said:
i did idle the motor down to 900 rpm and the servo opened. i also marked the open position. after it shut it off and marked the open position i loosend the two bolts at the valves and turned the adjusters at the servo all the way in. i put a 2.5mm allen wrench in between the housing at the valve and turned the adjuster at the servo and the servo would move if i didnt hold it.

i dont believe its a power valve problem. does anyone have a suggestion as to how long of a run it will take to top out?

also on my dream-o-meter when it says 100 mph im going roughly 95 mph.

i would like to get a mount for my gps but for now its just around my neck or looped around the bars.
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RIVERRUNNER said:
I know this is a hassle but I would try taking the pipes and headers off and checking to make sure that when you move your servo up to the mark that the powervalves are adjusted properly. It sounds like when you were adjusting that there was too much tension on the valves so the servo was moving. I think it is worth checking to see where you are on those it sucks to pull one through. They should be flush to just less than flush!


I think those hh are holding you back.....whats it like on an indefinite run.
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indefinite? the longest i think has been inside of a half mile. i did have my pipes off and the valves were all flush.
 
madzx2 said:
i checked and adjusted my power valves yesterday so i know thats not the problem. ill try messing with the weights and see what happens.
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Does the sled feel really strong down low and mid range? Awesome throttle response, etc? Have you also checked compression and everything else I mentioned? Have you had a chance to get it on a nice flat long hard road? I loose 10 mph in the snow but still get 110 speedo on a groomed trail but can put the needle past 120 on a hard flat road. Im sure on a rough lake I would loose another 5 mph and probably see 105 (speedo)
 
You said the clutches are really Hot!! If thats true you are getting belt slippage! so I would say its in your clutching.. Are you sure your sheaves are clean clean! Best way to clean em is in hot soapy water. They may look clean but have some mineral deposits in them which would make it slip and overheat....Just a suggestion.....
 
Yes pull clutch off and check all components for wear, probably got a worn out bushing,,,...
 
unchained said:
Thats a cool pic but if its not burried, your not getting all of it. Mine is in mph but I was able to just pass the 120 mark Saturday on a hard packed/ice long stretch of road and it was 39 degrees out. I was getting 108-110 (speedo) on the groomed trail. I would like to snap a pic of the needle past the 120 mark if I can do it safely...
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That is 116 mph, with a ripsaw 1.25 track. I think it's pretty good. I couldn't give it all that day because the sled was overrevving badly due to a too shallow helix. I'll give it another shot in march when I'm home. But keep in mind, 1.25 track.
 
the clutches got really hot when i went from 70 to 80 wrap. im back at 70 now. my compression is 120 psi on all three. im gonna break in my new belt tommorrow and possibly put clutching back to what it was with previous owner.

still no one has given an answer on how long of a run it would take to top out. id hate to find out it takes so many feet and im only running about 1000ft .
 
make sure your both clutches are super clean. i run my srx on the asphalt. i will loose 3tenths in the quarter if my clutches aren't clean. every pass i give them a rub with a scotch bright pad. and make sure your belt is sitting up in the sheave on the secondary when it is shut off.
 
383stroker said:
make sure your both clutches are super clean. i run my srx on the asphalt. i will loose 3tenths in the quarter if my clutches aren't clean. every pass i give them a rub with a scotch bright pad. and make sure your belt is sitting up in the sheave on the secondary when it is shut off.
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i picked up some scotch brite pads today cause i remembered reading about it before. and my belt is set to 1.5mm above the secondary.

thanks to all who have contributed to my thread so far!!!!
 
madzx2 said:
the clutches got really hot when i went from 70 to 80 wrap. im back at 70 now. my compression is 120 psi on all three. im gonna break in my new belt tommorrow and possibly put clutching back to what it was with previous owner.

still no one has given an answer on how long of a run it would take to top out. id hate to find out it takes so many feet and im only running about 1000ft .
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Exactly.........your clutches should have run cooler ,if anything... the more force you put on the belt , the greater the grip, = less slippage, = LESS HEAT. if there s oil residue or simaler stuff, then the more force on the belt, the more heat... get it?
CLEAN THE CLUTCHES........... use brake cleaner or somthing like that , just dont use any petroleum based cleaners.
 
yammy said:
Exactly.........your clutches should have run cooler ,if anything... the more force you put on the belt , the greater the grip, = less slippage, = LESS HEAT. if there s oil residue or simaler stuff, then the more force on the belt, the more heat... get it?
CLEAN THE CLUTCHES........... use brake cleaner or somthing like that , just dont use any petroleum based cleaners.
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ok its pretty much narrowed down to clutching then. im thinking i dont have my heavy hitters set up right. i understand about cleaning the clutches and will do that tomorrow.
 
If your looking for top end on an srx you need 2000+ feet, Mine is still winding out well after that....
 
Whammy said:
If your looking for top end on an srx you need 2000+ feet, Mine is still winding out well after that....
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that explains why im only seeing 94.5 at about 1000ft then right?
 
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