Harley Dyno Tested -Dyna Lowrider S 110ci 

Hi Guys, apoligies I did not list the results of the Dyno. They are ; Max Power - 98.39 bhp at Engine RPM = 4.66 Max Torque - 119.25 at Engine RPM = 3.62 My Air/fuel ratio needs a little work, so I'm going to do an autotune on the bike.

You're beast sounds amazing! Blub Blub Blub... Love the Dyna S for me one of the best Harleys they ever built. It will be my next bike as long I get one. Ride save!

That guy talking about the pipe is full of himself, that pipe is not hurting you. The Vance and Hines competition is an excellent pipe, you just need an actual tune. 95-99HP and 115-120tq is about average on a stage 1 S

I would get the Dynojet Powervision + Dynojet’s Target Tune that consist of two wide band sensors. With that you can get a perfect A/F ratio line throughout the rpm range.

I enjoyed the video “Harley Dyno Test”. It’s nice to see if the mods preform as advertised. Some mods can actually hurt performance. I’ll be looking forward to seeing how the tune up comes out.

That was awesome. I live the Dyna Lowrider S. Your's sounds awesome. That was some very good info to find out about your fuel mixture ratio. And I now know that a lean running bike runs hotter. Makes sense if you think about it. You sure don't want to burn a valve or the rings. Hey, keep it on the ground if you can. Ride safe over many miles with many smiles.

Good vid mate ! Only Harley there! Nice one👍. I just banged New shocks on and lowered the fatty and a new seat and big sucker and poss paint job over winter to come and Maybe some drag pipes and drag bars ! Ride safe.

G'day Mark you should definatel do an Auto tune & get it checked again, if you blow your motor up you may not get it repaired under warranty. Was looking at an Aussie vlog over the weekend (Ducati pangiale I think is the name) & they did a stage 5 on a 2017 Breakout, & the motor blew up, & HD blamed it on the Vance & Hines quiet baffle, so be careful. Running lean isn't good Mark, so an ounce of prevention is better than a pound of cure , all the best 👍😎

Sounds like you're happy with it. Nice vid

Bit off topic but you might want to check out the Rokform phone case and mount. Fits so well on my fxdls it looks like it was factory made. Similar to what you use but centers the phone perfectly on the bars and works great portrait or landscape.

Great live stream btw. Interested also in the stage 2. Understand different cams are available. Interested to learn more about this for a M8 107 upgrade currently at 150NM. Winter? Riding of course!!

Oh this sweet torture.. Everytime I see one of your videos, I miss my LRS a bit more. Wonder how long I will last until I buy one again... Btw, the fatter tire looks nice. Good job.

Waiting for my bike to ship from the plant I just ordered a 2018 street bob looking forward to your review of it

My 07' Street bob survived hurricane season in Florida (thank goodness). Gonna throw 14" apes than save for new exhaust air breather. Greats vids btw. Cheers

I saw your bike at Rykers today. It looks great. The pipe really suits it but like the guy says, free flowing pipes on Harleys without a proper set up is dangerous if you don't want to melt it. Harley's are lean from the factory to start with, and big air cooled V twins will always suffer. You'll need to throw some more fuel in with a proper tune.

Never say never to a 117" indeed :) No special winter-izing here, cuz California :) Worst case is I leave it parked for a few weeks when the rains come. FWIW, I used to work in an automotive dyno shop so have some experience here. Dyno-dude nailed the AFR issue. In fact it's sooo beyond lean I am wondering if the O2 sensor was picking up reversion of outside air pushing Back into the super short pipe and being "seen" by the sensor due to harmonics/standing waves. Leaner than stoichiometric/14.7:1 is way not good, and a ~12.2:1 AFR when in power enrichment mode to avoid detonation is advisable. I seem to recall that Dynojet recommends the sniffer be at least 18" in from the end of the exhaust pipe to minimize this issue, and your pipe is barely 18" long if that in total :) So a couple of things on the dyno process: - I strongly prefer a smoothing level of 3 for sharing/discussing with the customer, and use Smoothing of 2 when deep dive diagnosing stuff. Smoothing = 5 hides far too much data that may reveal problem areas and makes it appear engines are smooth power delivery devices, which they are not. They are lumpy things, especially Harley's, once again due to that crank angle. - Ring up the dyno guys and get a copy of the digital file of your run then download the Dynojet Winpep viewer program so you can parse it: dynojet.com/downloads/downloads.aspx?dc=Software/Firmware should do it, if RU-vid doesn't block the URL... A longer final pipe to help cylinder scavenging (which is weird on a Harley due to the crank shaft angle that makes for the potato-potato exhaust sound) with a little bit of back pressure + a bump to a 6K RPM rev limiter with a proper AFR tune will pick up a lot of torque and a modest amount of HP. Regardless, a longer final pipe and a proper AFR tune will help your engine out a lot. CYa! Mako

It's all trial and error my man keep up the good work it'll come from Virginia in the states ride safe enjoy

A cool vid as usual and an interesting topic! Yeah, maybe you should do a autotune. Running lean ain't a good thing.

Good job mate, looks like around a 16bhp increase with the exhaust and tune. I’m still pondering which way to go with the exhaust so looking for a Dyno chart with maybe V & H Short shots fitted. What are you going to do about the bike running so lean? Because the power looks really smooth.

You should definitely get the 117 ci

Hey man nice video I have the same exhaust as you on my dyna, so i wanted to ask you in wich way it'isnt healty for the engine? Thanks

On the left side of your handlebar, is that cruise control on the lower part of your switches, and if it is, did you install yourself or did you buy the bike with it already installed? Thanks!

Thanks for sharing. Are you going to do the auto tune to see if it fixes your lean problem? I use the V&H FP3 on my FXDC and love it. Ride safe brother.

The exhaust actually turned out pretty good and blend in with the rims nicely! What was the Horse Power and the Torque on this thing though ? I really wanna know!

Are you considering to have your bike professionally tuned or just adding an auto tuner with a different fuel tuner? I have the same bike and was considering an Oil Bud oil cooler but now I'm leaning towards a professional tune first.PSI'm running a PCV with Two Brother's Comp S 2 into 1.

Just bought a forty eight and for some. Strange reason I think it's becoz of you ha

In the same position as you. Slim S staged 1, do i go for 117 or stage 2. Good to follow your journey

Nice bike! It is running scary lean though... You can probably gain a few hp at the higher rpm's by giving it the proper amount of fuel. It looks like the graph started flat lining at the same time it went lean. Did you ever get it sorted out?

Get that bike tuned up a bit and it will do nicely. Since you have a fuel pak then put it in auto tune mode for a while.

good to know so now I wont be getting that exhaust pipe now but I do like the sound of those pipes but not worth it if its gonna run it lean and hot

Gooi die vance and hines fp3 toch in de prullenbak en koop een Thundermax tuner

What HP did you achieve don’t believe you said, I’ve got the same set up as you but I gave run the auto tune.

Were those figures as measured at the rear wheel or the calculated/estimated crankshaft numbers?

Buying a new hard candy iron 2018 carl from wales

Good power and funny

I noticed they're are a few naysayers or deaf or dumb s.o.b's in this bunch. To whom it may concern: the guy has changed the hardware on the bike, so now the software has to be re-tuned to give that beast the fuel it needs so it doesn't run lean. Harleys are tuned too f'n lean from the factory anyway. So, you might as well open the airways in,I as well as out, then find a guy that knows how to tune on a dyno properly. Shove some more fuel in and it will run with a smoother response, have more torque, have more h.p., and stop burning itself out, thanks to our tax dollars at work for emissions. And BTW, even with the factory stuff on the bike it's still running too lean and too f'n hot. You can feel on the bike where the cat converter is that it's hot as hell. You have to do these mods to make it right and to make it run richer and cooler. Fast air in, fast air out, get the A/F mix right and no more problems with too much heat and lag time. My low rider is all stock and runs like shit. When I have money in hand, i will do the same thing. Increase air in, increase air out, get the map tuned right so it adds the right amount of fuel for the amount of air moving through the engine and be on my merry f'n way. It's not rocket science. It's fuel injection that needs the computer to tell it what to do when you throttle up. If it was carberated, you'd re-jet it until the fuel was right. I hope I'm right, cause I'm just guessing. Haha.

consider that like button slapped my friend lol

Those pipe are one of the best that guy hasn't got a clue just get it retuned

Thry cross at 5252 everytime wth that guy dont kno how a dyno sheet works

117?? Just get a 124ci your gonna do it anyways

What's with all the f*cking noise! Shows that, aside from pissing off pretty much everybody, noisy aftermarket exhausts generally make little difference to performance, and in many cases make it worse. (certainly Harley engines don't work well with short exhausts, but hey they sound loud so everyone thinks you have a fast bike, right?) Noisy exhausts are not big or clever, but do get the authorities after ALL bikers, so thanks for that.

"My bike is running super sweet." So then, the obvious thing to do is start fucking with it. Nothing like making a hot bike hotter by adding a bunch of expensive things so that you can get a better number on a piece of paper. The things humans do...