Marcos Peguero
Zone Head
Posts: 568
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posted June 14, 2004 06:30 AM
Top speed help
I was with my bike in the west side of the island where there is a lot of wind and long straits.
My bike has -1 on the front, full muzzy and PCIIIr.
I felt the bike pulling hard but in 6th, I felt that the bike was forcing to pass the 11500K in the RPM's.(widn on the front).
Where do I start looking for more push on those rpms?
Thanks
   
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D
Needs a job
Posts: 3365
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posted June 14, 2004 07:47 AM
With the gearing change and at that speed, ANY significant wind is gonna seem like alot more than it is.
You might have geared yerself outta top end contention - use the search feature and look for gearing related threads, there's a ton of em here.
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Marcos Peguero
Zone Head
Posts: 568
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posted June 14, 2004 08:25 AM
No, the thing is that I could not reach rev. limiter.
Im thinking of putting more or less gasoline in the WOT in the hi-rpms.??
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted June 14, 2004 02:39 PM
what year is your bike?
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Marcos Peguero
Zone Head
Posts: 568
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posted June 14, 2004 02:40 PM
2000. model A
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TurboBlew
Moderator
BUSY DOING THE SCHIAVO
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posted June 14, 2004 04:09 PM
Stupid question, but were you tucked? I ran my bike for 2 miles WOT and couldnt hit the limiter with 18/45. Turns out I was abit lean at 100% throttle on the PC3.
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted June 14, 2004 06:04 PM
I can't see how you couldn't hit the limiter with -1 on the front, that reduces your top speed significantly, to somewhere around maybe 182mph? I touched the limiter easily in the standing mile using 18/46 stock gearing and nearly using 18/44 gearing, maybe there is something wrong with your powercommander or another problem?
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Hells Dark Lord
Needs a life
living life, and loving it.
Posts: 7981
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posted June 14, 2004 06:24 PM
-1 in the front, and 190 on the rear, adn my bike runs 177.9 MPH on the dyno at the limiter....02 model so its the top speed limiter, not the rev limiter
____________
When in doubt, lean farther and go faster....
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BA
Pro
Posts: 1592
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posted June 14, 2004 07:23 PM
quote:
My bike has -1 on the front, full muzzy and PCIIIr.
have you modified the timing?
maybe it's all 3 symptoms. Wrong timing, not quite rich enough, and that headwind.
Seems like there is a correlation formula for headwind vs top speed factor. Something like 1 to 1 or something, I'm sure RAC4IT knows.  (5mph wind = -5mph top speed?)
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RAC4IT
Needs a job
Bergie
Posts: 3009
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posted June 15, 2004 04:03 AM
zero out the map on your powercommander or remove it entirely and try again
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Marcos Peguero
Zone Head
Posts: 568
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posted June 15, 2004 04:48 AM
the power comander is at peak rpms -1 or -2 in timing and fuel at WOT:
9000 - 3
9500 - 1
10,000 - 1
10,500 - 0
11,000 - (-3)
11,500 - (-5)
12,000 - (-8)
12,500 - (-8)
13,000 - (-8)
I noticed that the bike feels like a monster on midrange but not so strong at peak hp.
Thanks for all your help since I dont have dinos here in RD.
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psycho1122
Pro
Posts: 1608
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posted June 15, 2004 08:31 AM
 Edited By: psycho1122 on 15 Jun 2004 09:33
My 2000 12 repeatedly hit 186 mph on the dyno with -1 front sprocket and a 46 rear sprocket. Also was running a 190 H2 w/ medium wear.
On a stock engine, I would run 0 Timing and be sure to seal up all the bad leaks in the ram air system!! (believe me...there are many BAD leaks)
If your map was done on a DJ250, it is most likely at least 5% too lean!
BTW, when I top speed tested my 2000 12 out here in the desert w/ Cycle World Mag. I hit 195.8 mph w/ stock gearing, pcIII, TiForce full pipe. I am 6' tall, 220 w/ gear and the air quality "mean" Elevation that a.m. was 2100 ft.
That set up on the dyno went 197.5 w/o any wheel spin.
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You say PSYCHO like it's a BAD thing!!
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Marcos Peguero
Zone Head
Posts: 568
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posted June 15, 2004 11:58 AM
Psycho, I will then put the timing on cero, that I remember made the bike run a little better.
then I will put 5% more gasoline on the map.
That means +5 on all the numbers on the map???? Rigth.??
Thanks
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psycho1122
Pro
Posts: 1608
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posted June 16, 2004 07:33 AM
I would start w/ the 6000 rpm and above at 80 & 100% throttle.
Find a buddy to do roll on's w/ before and after the changes to see the gains. Pick a gear (4th) to do them w/ to allow you to swing through the upper revs w/o too much road speed.
____________
You say PSYCHO like it's a BAD thing!!
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Marcos Peguero
Zone Head
Posts: 568
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posted November 09, 2004 03:30 PM
I tested the bike and changed the filter to BMC Race, the K and N where very dirty and put more gasoline in the top rpms and it pulls like a train in top gear.
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