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are my Dyno #'s OK?
I just had my stock FXDWG Dyna Wide Glide dyno'ed to get a "before" reading before I do my mods.
the readings are Max Power = 62.29 and Max Torque = 76.30. at around 3300rpm and 60 mph. Next I went to my owners manual and it states 91 ft lbs@ 3000 rpm. HD website states 92 ft lbs@ 3000. WHERE HAS MY 15.7 LBS OF TORQUE Gone???? Does the moco measure differently? I am sure the would quote the max numbers at ideal conditions. Is the moco torque at the rear wheel as on a dyno? The dyno was a dynojet, winpep 7, CF:SAE Smoothing: 4, run condition: 41.45 deg F, 29.82 in-Hg, humidity 30%, SAE: 0.94 and he ran it in 4th gear. I am wondering if my numbers are low or is this normal? |
RE: are my Dyno #'s OK?
I'm pretty sure that HD's numbers are at the crank and not the rear wheel. You're going to lose at least 10-15% at the wheel. There are others here more knowledgable than I who I'm sure will chime in.
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RE: are my Dyno #'s OK?
That's interesting, your #s sound about the same as an 88"er. What engine mods do you plan to do?
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RE: are my Dyno #'s OK?
with my setup i got
81.5 max power 98.2 max torque stock was 78.3 max power 94.8 max torque |
RE: are my Dyno #'s OK?
ORIGINAL: Azgunner That's interesting, your #s sound about the same as an 88"er. What engine mods do you plan to do? I think the dyno numbers are very low. mods will be D&D fat cats w/quiet baffles Tmax w auto tune D&M fwd faceing a/c an "after dyno" |
RE: are my Dyno #'s OK?
Dyno numbers are very missleading..Dyno's vary a lot and it really depends on the operator and the set up they are running. Your numbers for a stock 96cid sound reasonable. The torque numbers listed in the HD literature are measured at the crank. With a SE A/C, Thunderheader, and SERT I am running about 71HP and 81 Ft/lbs torque.
Unless you are going to get crazy with internal engine mods, don't worry about the dyno numbers too much. The best use of the dyno is for tuning. If you find a GOOD dyno tuner, I would invest in that. You will be amazed how much smoother the bike will run. How it rides and feels is more important than a piece of graph paper with lines on it. (IMO) |
RE: are my Dyno #'s OK?
ORIGINAL: johnfxdb The best use of the dyno is for tuning. If you find a GOOD dyno tuner, I would invest in that. You will be amazed how much smoother the bike will run. How it rides and feels is more important than a piece of graph paper with lines on it. (IMO) |
RE: are my Dyno #'s OK?
ORIGINAL: johnfxdb Dyno numbers are very missleading..Dyno's vary a lot and it really depends on the operator and the set up they are running. Your numbers for a stock 96cid sound reasonable. The torque numbers listed in the HD literature are measured at the crank. With a SE A/C, Thunderheader, and SERT I am running about 71HP and 81 Ft/lbs torque. Unless you are going to get crazy with internal engine mods, don't worry about the dyno numbers too much. The best use of the dyno is for tuning. If you find a GOOD dyno tuner, I would invest in that. You will be amazed how much smoother the bike will run. How it rides and feels is more important than a piece of graph paper with lines on it. (IMO) Thanks, now I can sleep easy. |
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