Anyone know which cam the moco put in the HO103 ?

[TUCCI]

Curious if anyone knows which cam was used in the High Output 103s (2016)....thanks.

[Ohio HD]

25400002
CAMSHAFT FRONT

25400003
CAMSHAFT REAR

[Ohio HD]

You can view the cams on our interactive camshaft data and comparator. These are listed as Twin Cooled cams.

https://harleytechtalk.com/tools/HD_cam_data.html


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[jsachs1]

I had a 103 H.O. come in Sept. 2017 for a 124 S&S low compression swap. The H.O. engine had 5 cc dome pistons, cranked 190 ccp, and a SE 259 cam set. The heads had 1.875" intake valves. Customer said the engine came from Harley Davidson as above.    
John

[Ohio HD]

I can't speak to that bike John. I just know what HD says they put in them.
It's possible the dealer did the 259 cams and pistons.   

[rigidthumper]

There were 3 Stock 6 speed cams:
1 dot/2 dot (07-13 touring, all non "HO" TC big twins 07-17) 
2 dot/3 dot (14-16 Rushmore TCBT, all "HO" TC big twins 16-17)
CVO-255 (All CVO 110 models 07-16)

[Ohio HD]

I found this a couple evenings ago, they show a cam set for HO motors in the SE catalog. They call them MY14 Stock, I have no idea what that stands for. Then below that is listed HO 103.

[TUCCI]

Is it safe to say that if the part# in the parts catalog says 25400002 & 3 signifies SE254E ?
If we went by the previous chart above that would likely mean..nice try.
Well at least I know I've got the 'C' tensioner in my model

[Ohio HD]

Is it safe to say that if the part# in the parts catalog says 25400002 & 3 signifies SE254E ?

No, 254E is 25503-10.



As I just posted above, the HO cams are shown as "see service manual for specific PN".



And I posted the HD parts catalog for 2016 Dyna models, the HO motors as part numbers 25400002 CAMSHAFT FRONT and 25400003 CAMSHAFT REAR.

[FSG]

Well at least I know I've got the 'C' tensioner in my model

so have you pulled the primary cover to check the shoe ?

[Hossamania]

I found this a couple evenings ago, they show a cam set for HO motors in the SE catalog. They call them MY14 Stock, I have no idea what that stands for. Then below that is listed HO 103.

Is MY14 maybe Model Year '14?

[Ohio HD]

I found this a couple evenings ago, they show a cam set for HO motors in the SE catalog. They call them MY14 Stock, I have no idea what that stands for. Then below that is listed HO 103.

Is MY14 maybe Model Year '14?

I think it does. I looked at rigidthumper's post again, he lists the 2dot/3dot HO cams starting at model year 2014.

[TUCCI]

We still don't know what the 25400002 & 3 equate to as far as cams or am I being obtuse?

[rigidthumper]

We still don't know what the 25400002 & 3 equate to as far as cams or am I being obtuse?

Those are 2 dot/3 dot cams (used in the 2014-2016 Rushmore touring models, and all "HO" 103 models).
25400002 is the front cam.
25400003 is the rear cam.

[TUCCI]

We still don't know what the 25400002 & 3 equate to as far as cams or am I being obtuse?

Those are 2 dot/3 dot cams (used in the 2014-2016 Rushmore touring models, and all "HO" 103 models).
25400002 is the front cam.
25400003 is the rear cam.

I saw that but which cams are those? From what I'm seeing it's either the SE254E or SE255E and if I were to venture a guess, I'd guess the 254 as it appears to be an across the board performance cam for lighter bikes even though the Fat Bob is far from light compared to the average Dyna. It's mild enough to give an idle lope and across the board torque boost. Nothing extreme but notable compared to a stock 103. Gas mileage is still good (still establishing a baseline range). It comes alive in the upper rpm range and loves the 2500-3000+ range. Enough for me to believe all TCs should have a mild cam to feel like the bike weight/performance is balanced. Having had a stock 103 in a Street Bob there's really no going back to stock.

[rigidthumper]

No- those do not have any "SE" whatever designation. They are factory stock, EPA approved, DOT legal, come from the factory, cams.

Idle is 1000-1100, red line is 5500-5600, so the usable range is about 4500 RPM wide.
Low end is typically between 1100~2600 RPM
Mid range would be 2700~4200
Top end is 4200~5700
Typical gearing has you running about 3,000 RPM @ highway speed.

[Ohio HD]

It's really easy.

[TUCCI]

No- those do not have any "SE" whatever designation. They are factory stock, EPA approved, DOT legal, come from the factory, cams.

Idle is 1000-1100, red line is 5500-5600, so the usable range is about 4500 RPM wide.
Low end is typically between 1100~2600 RPM
Mid range would be 2700~4200
Top end is 4200~5700
Typical gearing has you running about 3,000 RPM @ highway speed.

So what's High Ouput about factory stock, EPA approved, DOT legal cams or is the opened up air box with a SE air filter considered HO ? That's probably it in a nutshell. The difficulty is my interpretation of High Ouput and what the MOCO is calling HO....thanks for broadening my understanding it's appreciated.

[TUCCI]

[Rusticwater]

TUCCI,
Check out slide 47 of that 2014 model year tech forum presentation. 50% of the power increase comes from the new cams, 50% comes from the new airbox. The HO 103 puts out more power than an "old" 103 with a stage 1.

2016 was the first year the Dyna line got that engine.