Not sure how a 107" motor got into the thread but the OP's question was regarding the advisability of installing a set of Andrews 57 cams in a Stage 1 103" motor (2016 Ultra Limited).

In Stage I trim, published static CR is 10:1 which I would bet if measured is actually less. IMHO and as has been pointed out in the thread, that is on the low side considering that the 57 like 10.2/10.3 and some say even 10.5. Nobody has dissed the 57 cams as being bad cams but just suggesting that they might not be the best cam for the OPs application.

A Stage 1 103" motor with 57 cams typically makes 95HP/105TQ, give or take a couple; if exhaust is just right, maybe just shy of 100HP/110TQ tops. Not bad and would pull good in a dyna or softail, maybe even a Street Glide but will be lacking off idle in an Ultra, two up and loaded. Based on the OPs situation, the advice to consider other cams or install the 57 at 4* advance is pretty good advice IMHO.

Once you start talking head work, larger displacement, more compression, etc., that's a completely different conversation.

 

I believe Andrews 57H is a great touring cam from solo to 2 up. Do a search on this forum, don't only rely on what one or two people say as there is a significant amount of reading material. Do a search on Andrews 57H cams. Check out Lowcountry Joe's 57H upgrade on his touring scoot. Complete with photos, a must read. https://www.hdforums.com/forum/touri...-pictures.html

I'm in process upgrading to Andrews 57H myself.

Whatever decision you go with, read all you can, and do your homework!

B Bop

2012 FLHR (Road King) Ember Red Sunglo & Merlo
Cruise Control, ABS, Chrome Aluminum Profile Laced Spoke Tubeless Wheels, Security Package, Saddle Bag LED Lid Spoilers, and an array of accessories that enhances nostalgic appearance & blood curdling performance.

Do not argue with an idiot. He will drag you down to his level and beat you with experience.

 

I wasn't looking to throw in Torque or Hp numbers by mentioning mine. More was looking to say the 57 Can get good power with lower CCP.

 

(Below) is a copy & paste from Andrews Website.

It appears Andrews lists this cam for 103 Limited. Max torque: 2200-5600 RPM.
A heavy touring bike that suggests 2 up riding.

Andrews #216357 57H 18/38 100 236 270 .560 .184 Stock
.................................46/14 106 240 274 .560 .153 and CVO 110 engines.
New in 2012: Bolt-in, broad tip cams: 96, 103 Limited, & CVO 110. Max torque:2200-5600 RPM.

I agree it might not be the best performer, but it's also not what some are indicating it's not good for either.

B Bop

2012 FLHR (Road King) Ember Red Sunglo & Merlo
Cruise Control, ABS, Chrome Aluminum Profile Laced Spoke Tubeless Wheels, Security Package, Saddle Bag LED Lid Spoilers, and an array of accessories that enhances nostalgic appearance & blood curdling performance.

The beauty of the Second Amendment is that it will not be needed until they try to take it.

 

Andrews 48 may be better
The stock twin cooled has a Comp Ratio of 10.2 I believe
I still havent made decision and I still have the 57s

 

48H is another good cam. Cams are like a good woman, there are so many to choose from.

Andrews #216348 48H 13/29 098 222 257 .548 .153
.................................43/15 104 238 273 .548 .163
New in 2010: New design, broad tip cams for baggers with stock motors: max torque at low and mid RPMs.

B Bop

2012 FLHR (Road King) Ember Red Sunglo & Merlo
Cruise Control, ABS, Chrome Aluminum Profile Laced Spoke Tubeless Wheels, Security Package, Saddle Bag LED Lid Spoilers, and an array of accessories that enhances nostalgic appearance & blood curdling performance.

Do not argue with an idiot. He will drag you down to his level and beat you with experience.