Tc and Drew Beef Night Shift

May 30, 2022 Post a Comment

In this shootout we tested an assortment of bolt in camshafts from diverse manufacturers in the Harley Davidson Twin Cam 103 engine. Our test bicycle was a 2012 Dyna Switchback equipped with a FM Air conditioning/DC Phase i air cleaner, E-Series ii/i 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-ii
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
Southward&S 583
South&S 585
Due south&S MR103
Woods TW-222
Wood TW-555
Wood TW-777
Wood TW-999-6a

Each of the camshafts in our test offered measurable performance increases over the stock camshafts and each set of cams has a bit of its own personality. We would welcome you to contact ane of our technicians at 920-423-3309 Monday-Friday between 9-5 CST to help in finding the best camshaft to fit your detail riding style and functioning needs.

Baseline – 79.69Hp/98.42Tq

Andrews 48H – 94.60hp/112.13Tq

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

Fuel Moto'due south have: a very strong cam for low RPM-mid range performance, neat low terminate dial. Works slap-up in the stock 96/103 engines.

Andrews 57H – 95.87HP/109.09Tq

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

Fuel Moto's accept: non as stiff equally the 48H and some of the others in the lower RPM's, nonetheless it comes on quite expert in the mid RPM'due south and carries out well to the upper RPM's

Bicycle-Rama CR 570-2 – 94.43Hp/111.19Tq

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

Fuel Moto'due south have: great cam for low-mid power however very broad, builds torque very early and has swell response. Easy to tune equally well.

Cycle-Rama 575 – 93.70Hp/108.91Tq

What Cycle-Rama says: "bolt on cam, broad power, works in stock & modified engines"

Fuel Moto's take: not quite every bit potent every bit the 570-two nevertheless it even so makes significantly more than HP/TQ than stock on both sides of the curve. Would like to see this cam with a fleck more compression and permit it smoothen.

Feuling 525 – 95.31Hp/106.43Tq

What Feuling says: "designed to increment torque band width and increase fuel economy, Produces potent depression and mid range power with a linear horsepower and torque bend"

Fuel Moto's take: Information technology'due south a makes broad power with measurable overall gains, very linear power curve.

Feuling 543 – 96.47Hp/108.43Tq

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

Fuel Moto's take: non quite as potent downwardly depression equally the 525 notwithstanding information technology comes on strong in the mid RPM'southward and carries the horsepower out really well. Very responsive in the 3000-4500 RPM range

Feuling 574 – 97.50Hp/107.29Tq

What Fueling says: "Wicked power band for modified engines and an first-class 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 finish ability."

Fuel Moto'due south take: hot rod cam that makes neat horsepower on the right side of the curve, all the same strong mid-RPM hit. Notwithstanding maintains reasonable low RPM performance.

Ruby Shift 525 – 85.79Hp/109.68Tq

What Red Shift says: "High Torque for 96" and 103" Twin Cam® engines with stock, unmodified heads, adult to deliver immediate passing ability in 6th gear at whatever typical cruising speed. Ability starts before 2000 RPM"

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

Red Shift 527 – 93.56Hp/110.56Tq

What Red Shift says: "High-Torque design adult as a commodities-in cam for 96" to 110" O.E. engines. Delivers smooth and impressive Torque and Horsepower. Designed to go your motorcycle moving quicker in the areas yous ride the most. Power starts at 2250 RPM"

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

Ruddy Shift 575 – 94.46Hp/110.17Tq

What Red Shift says: "maximum valve railroad train acceleration, which gives the rider a very complimentary-revving feel 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. Yet this cam is virtually 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 heart and hangs on the power to the limiter. We really like the way the ability ramps up. Don't be afraid to rev this one.

Screamin Eagle SE-255 – 89.29Hp/108.11Tq

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, dainty overall curve.

South&S 551 – 88.54Hp/111.93Tq

What S&South 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. Profoundly improves low-finish and midrange torque, strongest from idle-4000rpm"

Fuel Moto'south 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 on ability.

S&Due south 570 – 98.74Hp/109.95Tq

What S&Southward says: "this cam will provide a dainty power increase beyond the entire power band. 3200-5700 rpm. Splendid commodities-in for overall power on a 103"

Fuel Moto's take: revs first-class, hits hard in the mid range and carries all the way to the limiter. Not bad horsepower, very flexible in a lot of applications.

S&South 583 – xc.97Hp/110.48Tq

What S&Southward says: "this cam makes horsepower and torque that y'all can feel all the way through the rpm range, making the nigh power right where y'all need it:1500–5000 rpm"

Fuel Moto's take: fantastic early torque with broad power, very quick in the depression-mid RPM's. Non a horsepower king but it really shines from 1500-4000 RPM. Excellent curve

S&South 585 – 97.37Hp/108.05Tq

What South&Southward 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'southward a bit soft on the lesser with stock compression, comes on potent at 3000 RPM and runs to the upper RPM's well. You're gonna need to rev this cam, it really wants higher pinch.

S&S MR103 – 97.03Hp/112.72Tq

What Southward&Southward says: "for the passenger who wants more than of everything without giving upwardly low end torque for high rpm horsepower, or vice versa. More than power all across the wide ability band, from idle to red line."

Fuel Moto's take: very stiff horsepower & torque, great overall residue for riders looking for linear power gains. Excellent curve.

Wood Performance TW-222 – 96.87Hp/111.89Tq

What Forest Performance says: "Concord on tight, super low-mid range & runs like hell on top"

Fuel Moto'due south accept: very smoothen commitment, accelerates fast, builds power early and stays in in that location really well. Easy to tune.

Wood Performance TW-555 – 97.53Hp/112.68tq

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 Functioning TW-777 – 99.08Hp/112.52Tq

What Forest Performance says: "Hot 555 on Steroids" Street or Touring wheel"

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

Wood TW-999-6a – 101.35Hp/112.72Tq

What Woods Performance says: "Special Grind, For those that want to exist #ane, Crawly Audio, 3000 RPM & upwards, Also loves compression"

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