We're getting closer; as noted in the beginning of the test we're doing this around an already full schedule with engine builds & tuning and we have a couple big projects that are ongoing and part of our staff was away at the PRI Show late last week. We just recieved a handful of cams from Feuling and we have a few other cams to test as well, Lucas has the bike back on the lift as we speak

Here's a video from last week
https://www.facebook.com/FuelMoto/videos/463352024384787/

 

Darn you Jamie. I wish you wouldn't have started this post. Darn near every 20 minutes, I keep coming back to check for your updates....Oops, have there been an update since I wrote this???? I need to refresh and check again....lol

 

Looking forward as well to these results.

 

Cams for the New Year!! Thanks Fuel Moto you guys kick ***!

 

In just to get the post count up...

 

We have finished the cam testing for the 103 and we're really excited to share the info. I'm going to be out of the office this afternoon thru part of next week and we have several other staff members that took vacation over the holidays so we're going to post everything on Monday, January 6th. We look forward to sharing this testing and we thank everyone for their enthusiasm & support along the way.

 

 

 

From the Fuel Moto University website > https://university.fuelmotousa.com/a...shaft-shootout

In this shootout we tested an assortment of bolt in camshafts from various manufacturers in the Harley Davidson Twin Cam 103 engine. Our test bike was a 2012 Dyna Switchback equipped with a FM AC/DC Stage 1 air cleaner, E-Series 2/1 exhaust, and each set of cams was fully tuned with a Dynojet Power Vision in the Fuel Moto Dynojet 250i dynamometer test cell.

Here is the list of the cams tested in this shootout:

• Andrews 48H
• Andrews 57H
• Cycle-Rama 570-2
• Cycle-Rama 575
• Feuling 525
• Feuling 543
• Feuling 574
• Red Shift 525
• Red Shift 527
• Red Shift 575
• Screamin Eagle 255
• S&S 551
• S&S 570
• S&S 583
• S&S 585
• S&S MR103
• Wood TW-222
• Wood TW-555
• Wood TW-777
• Wood TW-999-6a

Baseline


Andrews 48H

What Andrews says: “broad tip cams for baggers with stock motors; max torque at low and mid rpm ranges”

Fuel Moto’s take: a very strong cam for low RPM-mid range performance, great low end punch. Works great in the stock 96/103 engines.


Andrews 57H

What Andrews says: “Bolt-in broad tip cams; 96 in., 103 in. limited and 110 in. CVO engines, Cams work best at rpm range of 2200-5600”

Fuel Moto’s take: not as strong as the 48H and some of the others in the lower RPM’s, however it comes on quite good in the mid RPM’s and carries out well to the upper RPM’s


Cycle-Rama CR 570-2

What Cycle-Rama says: “bolt in cam, maximum torque”

Fuel Moto’s take: great cam for low-mid power yet very broad, builds torque very early and has great response. Easy to tune as well.


Cycle-Rama 575

What Cycle-Rama says: “bolt on cam, wide power, works in stock & modified engines”

Fuel Moto’s take: not quite as strong as the 570-2 however it still makes significantly more HP/TQ than stock on both sides of the curve. Would like to see this cam with a bit more compression and let it shine.


Fueling 525

What Fueling says: “designed to increase torque band width and increase fuel economy, Produces strong low and mid range power with a linear horsepower and torque curve”

Fuel Moto’s take: It’s a makes wide power with measurable overall gains, very linear power curve.


Feuling 543

What Feuling says: “more top end power than our 525 cam without sacrificing low end torque, smoothest cruise power band available. This cam is easy starting, increases throttle response and fuel mileage”

Fuel Moto’s take: not quite as strong down low as the 525 however it comes on strong in the mid RPM’s and carries the horsepower out really well. Very responsive in the 3000-4500 RPM range


Feuling 574

What Feuling says: “Wicked power band for modified engines and an excellent bolt in for stock 96, 103, & 110 engines. This is a great all around camshaft with solid low end performance and mind blowing mid and top end power.”

Fuel Moto’s take: hot rod cam that makes great horsepower on the right side of the curve, yet strong mid-RPM hit. Still maintains reasonable low RPM performance.


Red Shift 525

What Red Shift says: “High Torque for 96” and 103” Twin CamŽ engines with stock, unmodified heads, developed to deliver immediate passing power in 6th gear at any typical cruising speed. Power starts before 2000 RPM”

Fuel Moto’s take: these cams build big power early, designed for max power in the low RPM’s. Very snappy off idle, not overly rev happy but it doesnt need to be. Great cam for those what want strong early power.


Red Shift 527

What Red Shift says: “High-Torque design developed as a bolt-in cam for 96” to 110” O.E. engines. Delivers smooth and impressive Torque and Horsepower. Designed to get your motorcycle moving quicker in the areas you ride the most. Power starts at 2250 RPM”

Fuel Moto’s take: runs well from the lower RPM’s, great mid range power, and runs thru the upper RPM’s really well. Great cam with broad power.


Red Shift 575

What Red Shift says: “maximum valve train acceleration, which gives the rider a very free-revving experience that begs for more throttle. This is a great cam if you need a bolt-in now, but plan on upgrading the heads and compression in the future. However this cam is most impressive when used with high flowing heads”

Fuel Moto’s take: Another hot rod cam that rev’s very well, comes on strong thru the middle and hangs on the power to the limiter. We really like the way the power ramps up. Don’t be afraid to rev this one.


Screamin Eagle SE-255

What H-D says: “the ultimate in torque cams, low end torque increases are great for heavy bikes or for the person that routinely shifts below 4500 RPM”

Fuel Moto’s take: improved horsepower & torque over the stock cams, good low RPM punch, nice overall curve.


S&S 551

What S&S says: “bolt-in cam set designed for stock or mildly modified touring bikes. 551 cams are not recommended for compression ratios of 10:1 or greater. Greatly improves low-end and midrange torque, strongest from idle-4000rpm”

Fuel Moto’s take: very strong low RPM power that carries well thru the mid range, strong throttle response. Great choice for heavy touring bikes looking for early power.


S&S 570

What S&S says: “this cam will provide a nice power increase across the entire power band. 3200-5700 rpm. Excellent bolt-in for overall power on a 103”

Fuel Moto’s take: revs excellent, hits hard in the mid range and carries all the way to the limiter. Great horsepower, very flexible in a lot of applications.


S&S 583

What S&S says: “this cam makes horsepower and torque that you can feel all the way through the rpm range, making the most power right where you need it:1500–5000 rpm”

Fuel Moto’s take: fantastic early torque with broad power, very quick in the low-mid RPM’s. Not a horsepower king but it really shines from 1500-4000 RPM. Excellent curve


S&S 585

What S&S says: Provides massive horsepower and torque increases starting at 3000 rpm and holds steady all the way to redline. 3500-6000 rpm for 88″ – 103″ engines

Fuel Moto’s take: hot rod cam that’s a bit soft on the bottom with stock compression, comes on strong at 3000 RPM and runs to the upper RPM’s well. You’re gonna need to rev this cam, it really wants higher compression.


S&S MR103

What S&S says: “for the rider who wants more of everything without giving up low end torque for high rpm horsepower, or vice versa. More power all across the wide power band, from idle to red line.”

Fuel Moto’s take: very strong horsepower & torque, great overall balance for riders looking for linear power gains. Excellent curve.


Wood Performance TW-222

What Wood Performance says: “Hold on tight, super low-mid range & runs like hell on top”

Fuel Moto’s take: very smooth delivery, accelerates fast, builds power early and stays in there really well. Easy to tune.


Wood Performance TW-555

What Wood Performance says: “Ultra High Performance for your 96″,103″ & 110″ Street or Touring bike”

Fuel Moto’s take: makes very broad power, especially strong mid range, rev’s out really well with strong horsepower. Wide overall power curve.


Wood Performance TW-777

What Wood Performance says: “Hot 555 on Steroids” Street or Touring bike”

Fuel Moto’s take: super flexible cam, builds power hard and carries out to the upper RPM’s. Great overall combination of horsepower & torque. Big numbers on both sides.


Wood TW-999-6a

What Wood Performance says: “Special Grind, For those that want to be #1, Awesome Sound, 3000 RPM & up, Also loves compression”

Fuel Moto’s take: everything we like in a hot rod cam; big horsepower, it ramps up & hits hard, and has a strong idle. Don’t lug this one, rev it and smile.

 

Thanks for this guys, it's much appreciated!