mach111
Novice Class
Posts: 81
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posted December 28, 2002 02:39 PM
low torque on dyno run.?
i just had a custom map made for my bike.BIG DIFFERENCE.(in drivabiltiy,no hesitations,no surge,very very smoooth, etc.)wound up with mid 170'sh.p,but my torque was wierdly low at 90.5.the bike runs great now but i would have liked to see better torque,my friends stock 12 pushed 93.5.what gives here?is their a common culprit for the low torque #'s.i'm wondering if its that serpent pipe i'm running with the flatened header tubes?
  
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ZHooligan
Moderator
Post Whore Extraordinaire!
Posts: 3829
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posted December 28, 2002 02:53 PM
Generally lean mixtures make horsepower and rich makes torque. But I really have no experience with the Micron Serpentine pipes.
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Hells Dark Lord
Needs a life
living life, and loving it.
Posts: 7981
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posted December 28, 2002 07:31 PM
correct me if I am wrong Z, but I have heard that header pipe length, also plays a factor in the HP torque figures???
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When in doubt, lean farther and go faster....
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ZHooligan
Moderator
Post Whore Extraordinaire!
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posted December 28, 2002 07:35 PM
Header pipe length as well as the can length can effect horsepowr nd torque.
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Hells Dark Lord
Needs a life
living life, and loving it.
Posts: 7981
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posted December 28, 2002 07:44 PM
that is what I thought, all of these then can play a factor in hp gains and torque losses, or the other way around. That is why some pipes do well in one area, and lack in another.....
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When in doubt, lean farther and go faster....
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wannabe
Pro
Posts: 1931
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posted December 28, 2002 08:18 PM
OK, can someone please explain to me how you can get more horsepower and less torque? I thought that horsepower was a function of torque. Something like: HP = torque x RPM/5252.
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mach111
Novice Class
Posts: 81
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posted December 29, 2002 01:00 AM
im begining now to think my hunch was right with the serpent pipe.if i can only find that dam other dyno printout with my old h.p/torque numbers with the dyno run when the muzzy was on.that will tell us.does the dyno guy usually save your #'s.? it was lat year.
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wannabe
Pro
Posts: 1931
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posted December 29, 2002 01:34 AM
Every dyno place I've been to always saves everyones runs. Hard drive space is dirt cheap these days. There's a good chance that they'll still have your runs from last year.
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