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Not the numbers expected

3.5K views 22 replies 15 participants last post by  DarthMonolith  
#1 ·
Just installed Lloyds air filter, timing wheel +4, & PCV. Already had the Triovals. Dyno'd at 83/102. Temps were 89 degrees with 66% humidity. Just now riding it home...had to stop because of a mad storm so I'm sitting under a overpass. Blah! Bike seems to be running okay but it's too early to say. I also notice no difference in performance. Guess I'm off to Kevin ' as soon as he gets his dyno up. Gotta get them cams too of course.
 
#3 ·

With the high heat and humidity those #s are in line. After several runs the bike is hot and the atmospheric conditions sap a lot of power. I got mine done with basically the same mods (except for baffless mufflers). I got 89hp & 110tq, but was in the Fall with mild temps. The biggest change to me was how smoothly and quickly it revved, and the linear power. Others mention the heat reduction, but I got my bike late in the year and had it tuned shortly after, so I can't comment on that. It does run better all around. It sounds like your expection were too high and led to disappointment. If you feel you need a bit more you can try to increase advance on the ATS (mine is now at +6) and see if you notice it (after listening carefully for detonation).
Cams can't hurt either :)
 
#4 ·
Timing wheel and tri-ovals don't really add any power to the top end where your peak hp # is made, they're more of a low end torque builder. You should be running cooler, with better throttle response, and increased torque right around roll-on rpm range. Add cams and you'll be around 110-115 for numbers.
 
#6 ·
I'm running the same set up but with Auto Tune and wheel at +6. Don't know or care what my numbers are but as iabob mentioned it has real good roll on power especially 2500-3500 rpm...right where I use it the most. Very happy with how it runs.
 
#7 ·

To clarify:
Unless you are running the bike "uncorrected" the dyno is taking the weather into consideration and correcting the numbers to account for it. On a sh!tty weather day the correction could be like "SAE 1.04" meaning that the dyno is ADDING 4% to the numbers toaccount for the weather. This is probably shown on the dyno printout. As long as the temperature is not above like 95 or below like 58 the correction factors are very close.
So... saying your numbers are lowbecause the weather wasn't ideal is disregarding the dyno's correction factor (if applied).
 
#10 ·

Got my 11 cross roads dynoed in mid 90's with high humidity ans got 96hp ans 107 ft lbs torque, timing wheel +4, pc3, iav, stage 1 pipes and air filter, air strip removed, was told that bike was running lean and richened it up but pcv has limited tuning capabilitys, he recommend pcv has many much more tuneing capabilitys. And cams only for adding more power roughly near 120hp. These #'s were exactly was i thought i would get.
 
#14 ·

OK! all you learned rev heads and others.... I am about to finally go for a ride with nothing but the O2 sensors disconnected, and gen 3 dobeck fuel controller, straight out of the box..... Oh! there is one other mod I have done, but cannot see it affecting anything at all as I installed some time ago the Digital Guard Dawg KIM....
I have a deal with a Harley mechanic who is now freelancing on his own with a dyno etc. and he will give me run on the dyno at a reasonable cost so I am going to take him up on his offer.....
What numbers should I be expecting from this set up..... Remember bike is stock except for O2 sensors disconnected and the do-hicky fuel controller thingy.....
Temps have been in the low to mid 20 degrees Celsius, humidity normal, about 40 % or so......
Gramps....
Image
 
#15 ·

FWB

morgdog said:
AF-Rider, where did you get yours dyno'd at Milton or Ft. Walton?
 
#17 ·

Yes. Runs good so far but will let Kevin do it next time after cams install.
 
#19 ·
Old-Gramps said:
OK! all you learned rev heads and others.... I am about to finally go for a ride with nothing but the O2 sensors disconnected, and gen 3 dobeck fuel controller, straight out of the box..... Oh! there is one other mod I have done, but cannot see it affecting anything at all as I installed some time ago the Digital Guard Dawg KIM....
I have a deal with a Harley mechanic who is now freelancing on his own with a dyno etc. and he will give me run on the dyno at a reasonable cost so I am going to take him up on his offer.....
What numbers should I be expecting from this set up..... Remember bike is stock except for O2 sensors disconnected and the do-hicky fuel controller thingy.....
Temps have been in the low to mid 20 degrees Celsius, humidity normal, about 40 % or so......
Gramps....
Image
Unplugging the O2's will give you a slightly richer air/fuel ratio, and installing the fuel controller "strait out of the box" won't do anything, until it's programmed to do so. But adjusting it (or did the place you bought it from guess and preset it for you?) will also richen the mixture up a little more. if you get from stock mid 14's-1 A/F ratio to high 13's-1 A/F ratio you will get a cooler, smoother running engine with better throttle response. you won't be getting much in the way of additional power. Low 80's for hp, high 90's for tq. The real intent of the fuel controller is to add more fuel when you do things like intake or cam mods. Once you let more air in and open the valves up longer your engine is dangerously lean unless you have that little box adding more fuel to go with the extra air. THEN, you have more air and more fuel and getting more of the mixture in through longer valve openings...that makes a bigger bang when the spark ignites it. Now you're making more power :)
 
#20 ·

In May at Myrtle Beach Bike Week, I had Kyle from KMC Motorsports install the PC V, Lloydz air filter, timing wheel at +4 and the quarter turn throttle ring. The exhause is modified stock pipes done by Coastal Victory when I bought the bike in 2013. Once Kyle was done on the Dyno, he was able to get 94/112 which he was very pleased with....after riding it, so am I! Sounds like you would benefit greatly from one of the established Victory gurus tuning your bike on a dyno.

Tom
 
#21 ·
Thing about dynos is they tend to present different numbers. I have spun bikes when I was at POG that had claims of 116Hp, but they pulled a best of 107 on mine. Older Dyno Jet dynos tend to be a bit more "optimistic" and newer ones tend to be a little more "pessimistic". I would expect to see 87-92HP with those mods, and our crappy Fl. air. Guess we will find out soon enough. DJ said I should expect to see my stack by the end of the week, and if everything else works. I'll by spinning bikes by the middle of next week.
 
#22 ·

kevinx said:
Thing about dynos is they tend to present different numbers. I have spun bikes when I was at POG that had claims of 116Hp, but they pulled a best of 107 on mine. Older Dyno Jet dynos tend to be a bit more "optimistic" and newer ones tend to be a little more "pessimistic". I would expect to see 87-92HP with those mods, and our crappy Fl. air. Guess we will find out soon enough. DJ said I should expect to see my stack by the end of the week, and if everything else works. I'll by spinning bikes by the middle of next week.
Are these dyno's calibrated?
 
#23 ·

I had Kyle tune mine with hardware in my sig, with a SAE: 1.04, it was 83 degrees and 33% humidity. 93.5 HP and 109.6 TQ.